CONFERENCE ABSTRACTS
2025
Alshareef A, Nardelli P, Ting LH, Cope TC, Sawicki GS, “Exoskeleton influence on primary afferent feedback in-vivo”, The Society for Integrative and Comparative Biology (SICB), January 3-7, Atlanta, Georgia (2025).
Gong S, Alshareef A, Sawicki GS, “Machine Learning for Estimating In Vivo Muscle Force in Rat Plantarflexors”, The Society for Integrative and Comparative Biology (SICB), January 3-7, Atlanta, Georgia (2025).
Govindaraj T, Sawicki GS, Nichols R, “Sensory feedback in a single joint: implications for agility and internal regulation”, The Society for Integrative and Comparative Biology (SICB), January 3-7, Atlanta, Georgia (2025).
Modarressi M, Dick J, Sawicki GS, Chang YH, “Changes to neuromechanical coordination of energy production in the legs after neuromuscular fatigue”, The Society for Integrative and Comparative Biology (SICB), January 3-7, Atlanta, Georgia (2025).
Taylor S, Gaines M, Sawicki GS, Chang YH, “The Effects of Stretching on the Viscoelastic Properties of the Muscle-Tendon Unit”, The Society for Integrative and Comparative Biology (SICB), January 3-7, Atlanta, Georgia (2025).
2024
Leestma JK, Mathur S, Anderton M, Sawicki GS, Young AJ, “Dynamic duo: Design and validation of an autonomous frontal and sagittal actuating hip exoskeleton for balance modulation during perturbed locomotion”, 10th International Conference on Biomedical Robotics and Biomechatronics (BioRob), Heidelberg, Germany (2024).
Jakubowski KL, Sawicki GS, Ting LH, “Center of mass kinematics robustly predict multidirectional reactive joint torques during perturbed standing”, 10th International Conference on Biomedical Robotics and Biomechatronics (BioRob), Heidelberg, Germany (2024).
Nuesslein C, Bhakta K, Fernandez J, Davenport F, Leestma JK, Kim R, Lee D, Mazumdar A, Sawicki GS, Young AJ, “Comparing Metabolic Cost and Muscle Activation for LowerBody Exoskeletons Across Lifting Tasks”, 10th International Conference on Biomedical Robotics and Biomechatronics (BioRob), Heidelberg, Germany (2024)
Routt A, Jakubowski KL, Sawicki GS, Ting LH, “Impacts of Added Torso Mass on Reactive Balance Control: Implications for Stability in Pregnancy”, The 47th Annual Meeting of the American Society of Biomechanics, August 5- 8, Madison, Wisconsin (2024). • ABSTRACT
Dick J, Modarressi M, Sawicki GS, Chang YH, “Effects of Fatigue on Limb Coordination within the Framework of the Uncontrolled Manifold Analysis”, The 47th Annual Meeting of the American Society of Biomechanics, August 5- 8, Madison, Wisconsin (2024). • ABSTRACT
Iyer V, Leestma JK, Young AJ, Sawicki GS, “Investigating the Role of Hip Joint Moments in Modulating Mediolateral Step Placement during Perturbed Walking”, The 47th Annual Meeting of the American Society of Biomechanics, August 5- 8, Madison, Wisconsin (2024). • ABSTRACT
Davenport F, Young A, Sawicki GS, “Lighten the Load, Harnessing Machine Learning and Wearable Sensors to Estimate Joint Loading During Industry-Relevant Tasks”, The 47th Annual Meeting of the American Society of Biomechanics, August 5- 8, Madison, Wisconsin (2024). • ABSTRACT
Harvey T, Leestma J, Sawicki GS, Young A, “Comparing Real VS. Simulated Linear Acceleration IMU Data During Steady State Walking”, The 47th Annual Meeting of the American Society of Biomechanics, August 5- 8, Madison, Wisconsin (2024). • ABSTRACT
Modarressi M, Dick J, Sawicki GS, Chang YH, “Changes to Neuromechanical Coordination of Energy Absorbed in the Legs After Neuromuscular Fatigue”, The 47th Annual Meeting of the American Society of Biomechanics, August 5- 8, Madison, Wisconsin (2024). • ABSTRACT
Canezo C, Sawicki GS, “Ongoing Development of an Upper Body Exoskeleton Emulator”, Dynamic Walking Conference, May 27-30, Pensacola, Florida (2024).
Gong S, Alshareef A, Sawicki GS, “A Machine Learning Approach to Predict Dimensionless Muscle Force”, Dynamic Walking Conference, May 27-30, Pensacola, Florida (2024).
Routt A, Jakubowski K, Sawicki GS, Ting L, “Reactive balance control with added torso mass” Dynamic Walking Conference, May 27-30, Pensacola, Florida (2024).
2023
Casey R, Nuesslein C, Mazmudar A, Sawicki GS, Young AJ, “Low-profile wearable suit for sensing human dynamics”, The 46th Annual Meeting of the American Society of Biomechanics, August 8- 11, Knoxville, Tennessee (2023). • ABSTRACT
Smith RE, Shelton AD, Sawicki GS, Franz J, “Plantarflexor weakness and lesser Achilles tendon stiffness associate with greater vulnerability to walking balance perturbations”, The 46th Annual Meeting of the American Society of Biomechanics, August 8-11, Knoxville, Tennessee (2023). • ABSTRACT
Pimentel R, Trejo L, Saul K, Sawicki GS, Franz J, “The interactive effects of biological tendon and ankle exoskeleton stiffnesses on walking metabolic cost”, The 46th Annual Meeting of the American Society of Biomechanics, August 8-11, Knoxville, Tennessee (2023). • ABSTRACT
Thomas S, Joshi R, Cheng B, Cheng H, Aynardi MC, Sawicki GS, Rubenson J, “An implantable actuator for muscle force assistance in a bipedal animal model”, The 46th Annual Meeting of the American Society of Biomechanics, August 8-11, Knoxville, Tennessee (2023). • ABSTRACT
Rastogi R, Jakubowski K, Martino G, Beck ON, Shepherd M, Sawicki GS, Ting L, “Too much exoskeleton assistance can disrupt user balance correction”, The 46th Annual Meeting of the American Society of Biomechanics, August 8-11, Knoxville, Tennessee (2023). • ABSTRACT
Punith LK, Sawicki GS, “Trading off stability, agility and efficiency of movement across a broad range of muscle tendon morphologies”, The 46th Annual Meeting of the American Society of Biomechanics, August 8-11, Knoxville, Tennessee (2023). • ABSTRACT
Lou Q, Alshareef A, Sawicki GS, “Prolonged load carriage during walking induces fatigue and redistributes lower limb muscle effort”, The 46th Annual Meeting of the American Society of Biomechanics, August 8-11, Knoxville, Tennessee (2023). • ABSTRACT
Govindaraj T, Sawicki GS, Nichols TR, “Inter-joint monosynaptic feedback reduces sensitivity to perturbation direction”, The 46th Annual Meeting of the American Society of Biomechanics, August 8-11, Knoxville, Tennessee (2023). • ABSTRACT
Chen P, Shafer B, Du WL, Young AJ, Sawicki GS, “Which hip model best predicts biological torques across modes? A simulation study”, The 46th Annual Meeting of the American Society of Biomechanics, August 8-11, Knoxville, Tennessee (2023). • ABSTRACT
Shafer B, Peart K, So R, Young AJ, Sawicki GS, “Do humans use muscle activity or energetics to select walking speed? What we can learn from ankle exoskeleton interventions”, The 46th Annual Meeting of the American Society of Biomechanics, August 8-11, Knoxville, Tennessee (2023). • ABSTRACT
Gosyne J, Vitale C, Lou Q, Sawicki GS, “Development of a foot-ankle exoskeleton to reduce the metabolic cost of dissipative terrain locomotion”, The 46th Annual Meeting of the American Society of Biomechanics, August 8-11, Knoxville, Tennessee (2023). • ABSTRACT
Gosyne J, Lou Q, Vitale C, Sawicki GS, “Linking the terradynamics, mechanics and energetics of dissipative terrain locomotion”, The 46th Annual Meeting of the American Society of Biomechanics, August 8-11, Knoxville, Tennessee (2023). • ABSTRACT
Trejo L, Franz JR, Sawicki GS, “Older adults benefit more than younger from active, but not passive, ankle exoskeletons”, The 46th Annual Meeting of the American Society of Biomechanics, August 8-11, Knoxville, Tennessee (2023). • ABSTRACT
Modarressi MS, Rock CG, Sawicki GS, Chang YH, “Impacts of fatigue on neuromechanical strategies in single-legged jumping”, The 46th Annual Meeting of the American Society of Biomechanics, August 8-11, Knoxville, Tennessee (2023). • ABSTRACT
Schroeder JN, Beck ON, Sawicki GS, “Relatively small changes in foot-ankle mechanics over months alter musculoskeletal structure”, The 46th Annual Meeting of the American Society of Biomechanics, August 8-11, Knoxville, Tennessee (2023). • ABSTRACT
Schroeder JN, Beck ON, Franz J, Sawicki GS, “Impact of triceps-surae operating lengths on whole body metabolic cost”, The 46th Annual Meeting of the American Society of Biomechanics, August 8-11, Knoxville, Tennessee (2023). • ABSTRACT
Alshareef A, Moore O, Franz J, Sawicki GS, “Ankle exoskeletons mitigate calf muscle fatigue over 30 minute walking bouts”, The 46th Annual Meeting of the American Society of Biomechanics, August 8-11, Knoxville, Tennessee (2023). • ABSTRACT
Alshareef A, Nardelli P, Cope T, Ting L, Sawicki GS, “Elastic exoskeleton influence on muscle spindle firing in-vivo”, The 46th Annual Meeting of the American Society of Biomechanics, August 8-11, Knoxville, Tennessee (2023). • ABSTRACT
Davenport F, Leestma JK, Nuesslein C, Fernanez J, Kim R, Casey R, Wheeler J, Mazumdar A, Young AJ, Sawicki GS, “Offsetting the load: Can exoskeletons mitigate injury risk during industrial lifting tasks?”, The 46th Annual Meeting of the American Society of Biomechanics, August 8-11, Knoxville, Tennessee (2023). • ABSTRACT
Beck ON, Schroeder JN, Sawicki GS, “Wearing high heels remodels leg muscle-tendons and improves walking economy”, The 46th Annual Meeting of the American Society of Biomechanics, August 8-11, Knoxville, Tennessee (2023). • ABSTRACT
Leestma JK, Iyer V, Young AJ, Sawicki GS, “Hop, skip, and a jump: investigating why people jump in response to walking perturbations”, The 46th Annual Meeting of the American Society of Biomechanics, August 8-11, Knoxville, Tennessee (2023). • ABSTRACT
Leestma JK, Sawicki GS, Young AJ, “Does the relationship between whole body angular momentum and step placement change in individuals post-stroke?”, The 46th Annual Meeting of the American Society of Biomechanics, August 8-11, Knoxville, Tennessee (2023). • ABSTRACT
Jakubowski K, Sawicki GS, Ting L, “Center of mass kinematics robustly predict reactive joint torques at the ankle, knee, and hip during perturbed standing”, XXIX Congress of the International Society of Biomechanics (ISB), July 30- August 3, Fukuoka, Japan (2023).
Punith LK, Abbott EM, Sawicki GS, “Dynamic muscle properties enable rapid recovery from terrain perturbations without change in neural control”, Annual Meeting of the Society for Integrative and Comparative Biology (SICB), January 3-7, Austin, Texas (2023). *Selected as finalist for D. Dwight Davis Award -Best Student Presentation in the Division of Vertebrate Morphology.
2022
Krupenevich RL, Sawicki GS, Franz JR. “Age-related reductions in Achilles tendon stiffness persist at matched triceps surae activations” North American Congress on Biomechanics, August 21-25, Ottawa, Canada (2022). • ABSTRACT
Davenport FR, Leestma JK, Staten A, Bhakta K, Fernandez J, Mazumdar A, Young AJ, Sawicki GS. “Joint-level biomechanics of high-intensity industrial tasks to inform exoskeleton mitigation strategies” North American Congress on Biomechanics, August 21-25, Ottawa, Canada (2022). • ABSTRACT
Alshareef A, Stephens J, Ting LH, Sawicki GS. “How do elastic exoskeletons influence muscle spindle feedback?” North American Congress on Biomechanics, August 21-25, Ottawa, Canada (2022). • ABSTRACT
Smith CR, Leestma JK, Young AJ, Sawicki GS. “A machine learning approach for determining whole body angular momentum from wearable sensors” North American Congress on Biomechanics, August 21-25, Ottawa, Canada (2022). • ABSTRACT
Trejo LH, Schroeder JN, Sawicki GS. “Submaximal soleus force length characteristics with aging” North American Congress on Biomechanics, August 21-25, Ottawa, Canada (2022). • ABSTRACT
Krupenevich RL, Sawicki GS, Franz JR. “Linking walking economy and the metabolic cost of isometric plantarflexor action” North American Congress on Biomechanics, August 21-25, Ottawa, Canada (2022). • ABSTRACT
Leestma JK, Smith CR, Golyski PR, Young AJ, Sawicki GS. “The utility of stability: whole body angular momentum informs step placement during perturbed walking” North American Congress on Biomechanics, August 21-25, Ottawa, Canada (2022). • ABSTRACT
Gosyne JR, Sawicki GS. “Why is the metabolic cost of locomotion higher on sand?” North American Congress on Biomechanics, August 21-25, Ottawa, Canada (2022). • ABSTRACT
Beck ON, Shepherd MK, Rastogi R, Ting LH, Sawicki GS. “Exoskeletons need to react faster than reflexes to improve standing balance” North American Congress on Biomechanics, August 21-25, Ottawa, Canada (2022). • ABSTRACT
Shafer BA, Young AJ, Sawicki GS. “Overground optimization of ankle exoskeleton assistance for self-selected walking speed” North American Congress on Biomechanics, August 21-25, Ottawa, Canada (2022). • ABSTRACT
Golyski PR, Sawicki GS. “How the rectus femoris mechanically “works” during perturbed walking” North American Congress on Biomechanics, August 21-25, Ottawa, Canada (2022). • ABSTRACT
Golyski PR, Panizzolo FA, Sawicki GS. “A passive hip flexion device may improve stability during perturbed walking” North American Congress on Biomechanics, August 21-25, Ottawa, Canada (2022). *Selected as the 2022 American Society of Biomechanics Predoctoral Achievement Award winner. • ABSTRACT
Beck ON, Shepherd MK, Rastogi R, Martino G, Sawicki GS, Ting LH, “Artificially fast exo-boots improve standing balance while reducing Initial feedback response” International Society of Posture and Gait Research (ISPGR), July 3-7, Montreal, Canada (2022).
Simha SN, Horslen B, Sawicki GS, Campbell K, Ting LH, “Modeling muscle’s intrinsic resistance to stretch: implications for simulations of perturbed posture” International Society of Posture and Gait Research (ISPGR), July 3-7, Montreal, Canada (2022).
Stephens JD, Simha SN, Abbott EM, Wood L, Nardelli P, Cope TC, Ting LH, Sawicki GS. “Muscle fascicle length does not explain spindle firing rates in passive stretches of rat gastrocnemius with added tendon compliance” International Society of Posture and Gait Research (ISPGR), July 3-7, Montreal, Canada (2022).
2021
Funk CJ, Krupenevich RL, Sawicki GS, Franz JR. “Exploring the Functional Boundaries and Metabolism of Triceps Surae Force-Length Relations during Walking” The 45th Annual Meeting of the American Society of Biomechanics, August 10-13th, Atlanta, GA (2021). • ABSTRACT • Winner of the 2021 Journal of Biomechanics Award
McCain EM, Lewek MD, Sawicki GS, Saul KR. “Impact of induced gait asymmetry on knee joint reaction forces” The 45th Annual Meeting of the American Society of Biomechanics, August 10-13th, Atlanta, GA (2021). • ABSTRACT • SLIDES • RECORDED TALK
Beck ON, Schroeder JN, Trejo LH, Franz JR, Sawicki GS. “Relatively shorter muscle fascicles increase the metabolic cost of cyclic force production” The 45th Annual Meeting of the American Society of Biomechanics, August 10-13th, Atlanta, GA (2021). • ABSTRACT • POSTER
Trejo LH, Schroeder JN, Beck ON, Sawicki GS. “Submaximal soleus force length characteristics with aging” The 45th Annual Meeting of the American Society of Biomechanics, August 10-13th, Atlanta, GA (2021). • ABSTRACT • POSTER
Leestma JK, Sawicki GS, Young AJ. “Perturbation direction reverses the effect of timing on peak center of mass speed” The 45th Annual Meeting of the American Society of Biomechanics, August 10-13th, Atlanta, GA (2021). • ABSTRACT • SLIDES • RECORDED TALK
Golyski PR, Sawicki GS. “Which joints compensate for destabilizing energy during walking?” The 45th Annual Meeting of the American Society of Biomechanics, August 10-13th, Atlanta, GA (2021). • ABSTRACT • SLIDES • RECORDED LINK
2020
McCain EM, Saul KR, Sawicki GS, Lewek MD. “Isolating the energetic consequences of mechanically imposed reductions in ankle and knee flexion during gait“. The 44th Annual Meeting of the American Society of Biomechanics, August 4-7th, Atlanta, GA (2020). • ABSTRACT • SLIDES • 3 MINUTE THESIS PRESENTATION
Gosyne JR, Lou Q, Sawicki GS. “The Effect of Frequency on the Energetics of Hopping in Dissipative Terrain“. The 44th Annual Meeting of the American Society of Biomechanics, August 4-7th, Atlanta, GA (2020). • ABSTRACT • POSTER
Govindaraj T, Nichols TR, Sawicki GS. “The Influence of Inter-joint Force-dependent Feedback on Whole Limb Impedance Over a Range of Frequencies“. The 44th Annual Meeting of the American Society of Biomechanics, August 4-7th, Atlanta, GA (2020). • ABSTRACT • POSTER
Nevarez-Sanchez W, Shafer BA, Young AJ, Sawicki GS. “Can EMG accurately predict metabolically optimal step frequency“. The 44th Annual Meeting of the American Society of Biomechanics, August 4-7th, Atlanta, GA (2020). • ABSTRACT • POSTER
White Z, Schroeder JN, Trejo LH, Sawicki GS. “Reliability of Maximum Voluntary Isometric Contractions“. The 44th Annual Meeting of the American Society of Biomechanics, August 4-7th, Atlanta, GA (2020). • ABSTRACT • POSTER
Schroeder JN, Trejo LH, Beck ON, Sawicki GS. “Relative Contribution of Material and Morphological Properties to Altered Achilles Tendon Stiffness in Aging“. The 44th Annual Meeting of the American Society of Biomechanics, August 4-7th, Atlanta, GA (2020). • ABSTRACT • POSTER
Abbott EM, Nardelli P, Cope T, Sawicki GS. “Mechanosensation by muscle spindles during active muscle-tendon work loops“. The 44th Annual Meeting of the American Society of Biomechanics, August 4-7th, Atlanta, GA (2020). • ABSTRACT
Leestma JK, Sawicki GS, Young AJ. “Spatiotemporal recovery responses used to combat translational platform perturbations during walking“. The 44th Annual Meeting of the American Society of Biomechanics, August 4-7th, Atlanta, GA (2020). • ABSTRACT • POSTER
Golyski PR, Sawicki GS. “Are biceps femoris muscle length changes influenced by in-series compliance across locomotor demand?“. The 44th Annual Meeting of the American Society of Biomechanics, August 4-7th, Atlanta, GA (2020). • ABSTRACT • POSTER
Vazquez E, Golyski PR, Leestma JK, Sawicki GS. “Treadmill Belt Acceleration Timing Affects Stability During Walking“. The 44th Annual Meeting of the American Society of Biomechanics, August 4-7th, Atlanta, GA (2020). • ABSTRACT • POSTER
Beck ON, Gosyne JR, Franz JR, Sawicki GS. “Cyclically Producing the Same Average Muscle-Tendon Force with a Smaller Duty Increases Metabolic Rate“. The 44th Annual Meeting of the American Society of Biomechanics, August 4-7th, Atlanta, GA (2020). • ABSTRACT
Leestma JK, Sawicki GS, Young AJ. “Responses to locomotion commotion caused by translation perturbations“. Dynamic Walking Conference, May 14th, Hawley, PA (2020). • ABSTRACT • POSTER
2019
Govindaraj T, Howland DR, Sawicki GS, Nichols TR. “A modeling and optimization framework for understanding the role of reflexes in the feline hindlimb in promoting proportional coordination of the joints during yield.” The 49th Annual Meeting of the Society for Neuroscience, October 19th-23rd, Chicago, IL (2019). • POSTER
Punith LK, Sawicki GS “Think With Your Feet, Not With Your Head: A Biologically Inspired Design Approach for Augmenting Unsteady Locomotion”. The 9th International Symposium on Adaptive Motion of Animals and Machines, August 20th–23rd, Lausanne, Switzerland (2019). • ABSTRACT • POSTER
Rock CG, Trejo LH, Sawicki GS, Chang YH “How to hop on Mars: neuromechanical model suggests low frequency is optimal”. XXVII Congress of the International Society of Biomechanics, July 31-August 4th, Calgary, Canada (2019). • ABSTRACT • POSTER
McCain EM, Dick TJM, Saul KR, Lewek MD, Sawicki GS “Towards understanding changes in joint loading due to reduced knee flexion in post-strike gait”. XXVII Congress of the International Society of Biomechanics, July 31-August 4th, Calgary, Canada (2019). • ABSTRACT • POSTER
Sawicki GS “Getting ‘under the skin’ to examine how exoskeletons steer muscle dynamics during locomotion”. XXVII Congress of the International Society of Biomechanics, July 31-August 4th, Calgary, Canada (2019). • ABSTRACT • SLIDES
Beck ON, Nuckols RW, Sawicki GS “Exoskeletons Improve Walking Economy by Steering Muscle Dynamics”. XXVII Congress of the International Society of Biomechanics, July 31-August 4th, Calgary, Canada (2019). • ABSTRACT • POSTER
Rosa LG, Sawicki GS “Real-time muscle fascicle length measurement via machine learning”. XXVII Congress of the International Society of Biomechanics, July 31-August 4th, Calgary, Canada (2019). • ABSTRACT • SLIDES
Trejo LH, Schroeder JN, Sawicki GS “Can Ankle Exoskeletons Reduce the Metabolic Cost of Older Adult Locomotion?”. XXVII Congress of the International Society of Biomechanics, July 31-August 4th, Calgary, Canada (2019). • ABSTRACT • SLIDES
Schroeder JN, Sawicki GS “Modeling the Impact of Long-term Exoskeleton Use on Achilles Tendon Mechanical And Morphological Properties”. XXVII Congress of the International Society of Biomechanics, July 31-August 4th, Calgary, Canada (2019). • ABSTRACT • POSTER
Punith LK, Abbott EM, Sawicki GS “Combining Feedforward Control and Series Elasticity Enables Muscle-Tendon Units to Rapidly and Safely Reject Perturbations”. XXVII Congress of the International Society of Biomechanics, July 31-August 4th, Calgary, Canada (2019). • ABSTRACT • SLIDES
Punith LK, Abbott EM, Sawicki GS “Isolated Muscle-Tendon Units Reject a Broad Range of Perturbations Without Feedback”. XXVII Congress of the International Society of Biomechanics, July 31-August 4th, Calgary, Canada (2019). • ABSTRACT • POSTER
Shafer BA, Golyski, PR, Sawicki GS, Young AJ “Hip Exoskeleton Emulator to Explore Spring-Like Assistance Strategies During Walking”. XXVII Congress of the International Society of Biomechanics, July 31-August 4th, Calgary, Canada (2019). • ABSTRACT • POSTER
Golyski PR, Sawicki GS “Optimizing a Passive Hip Exoskeleton for Balance on a Prosthetic Foot”. XXVII Congress of the International Society of Biomechanics, July 31-August 4th, Calgary, Canada (2019). • ABSTRACT • POSTER
Gosyne JR, Tomkinson IK, Sawicki GS “Optimizing contact area and joint stiffness of a passive foot-ankle exoskeleton for hopping on deformable terrain”. XXVII Congress of the International Society of Biomechanics, July 31-August 4th, Calgary, Canada (2019). • ABSTRACT • SLIDES
Govindaraj T, Nichols TR, Sawicki GS “Optimizing Joint Impedances to Quickly Reject an Endpoint Force Perturbation in a Cat Hindlimb”. XXVII Congress of the International Society of Biomechanics, July 31-August 4th, Calgary, Canada (2019). • ABSTRACT • POSTER
Abbott EM, Punith LK, Sawicki GS “Biorobotic jumping: antagonist muscle-tendon units can controllably enhance power across a joint”. XXVII Congress of the International Society of Biomechanics, July 31-August 4th, Calgary, Canada (2019). • ABSTRACT • POSTER
Abbott EM, Nardelli P, Cope T, Sawicki GS “Examining Changes to Proprioceptive Signals with Increased Muscle-Tendon Compliance In Situ”. XXVII Congress of the International Society of Biomechanics, July 31-August 4th, Calgary, Canada (2019). • ABSTRACT • POSTER • SLIDES
Oldshue AH, Punith LK, Blum KP, Sawicki GS, Ting LH “Modeling muscle cross-bridge dynamics for movement simulations”. XXVII Congress of the International Society of Biomechanics, July 31-August 4th, Calgary, Canada (2019). • ABSTRACT • POSTER
2018
Abbott EM, Beck ON, Schoeder JN, Punith LK, Golyski PR, Sawicki GS (Lab Talk) “Physiology of Wearable Robotics Lab”. Dynamic Walking Conference, May 21-24, Pensacola, Florida (2018). • SLIDES • RECORDED TALK
Punith LK, Sawicki GS (Poster) “Passive Exoskeletons Can Enable Faster Recovery From Perturbations in Terrain”. Dynamic Walking Conference, May 21-24, Pensacola, Florida (2018). • ABSTRACT
Schroeder JN, Sawicki GS (Poster) “Modeling the Impact of Long-term Exoskeleton Use on Achilles Tendon Remodeling”. Dynamic Walking Conference, May 21-24, Pensacola, Florida (2018). • ABSTRACT
Abbott EM, Sawicki GS (Poster) “Can an antagonistic muscle act as a catch to enhance power output?”. Dynamic Walking Conference, May 21-24, Pensacola, Florida (2018). • ABSTRACT
Beck ON, Golyski PR, Sawicki GS (Poster) “Does shoe stiffness affect running economy?”. Dynamic Walking Conference, May 21-24, Pensacola, Florida (2018). • ABSTRACT
Golyski PR, Sawicki GS (Poster) “Optimal Passive Hip Exoskeleton Stiffness for Improving Balance on a Prosthetic Foot: A Modeling Study”. Dynamic Walking Conference, May 21-24, Pensacola, Florida (2018). • ABSTRACT
2017
Cox S, Sawicki GS, Rubenson J, (Podium) “RoboBird: A passive exo-tendon for guinea fowl”. 41st Annual Meeting of American Society of Biomechanics, August 8-11, Boulder, Colorado (2017). • ABSTRACT
Dick N, Nuckols R, Sawicki GS, (Thematic Poster) “Tuned or not? Ultrasound measurements of soleus fascicle dynamics during human walking with elastic ankle exoskeletons”. 41st Annual Meeting of American Society of Biomechanics, August 8-11, Boulder, Colorado (2017). • ABSTRACT
Doering JA, Sawicki GS,(Poster) “From hopping on land to treading in water: Understanding limits on muscle-tendon performance in changing environments”. 41st Annual Meeting of American Society of Biomechanics, August 8-11, Boulder, Colorado (2017). • ABSTRACT
Green BA, Sawicki GS, Rubenson J, (Thematic Poster) “Energy cost of walking in a passive-elastic ankle-metatarsophalangeal exoskeleton”. 41st Annual Meeting of American Society of Biomechanics, August 8-11, Boulder, Colorado (2017). • ABSTRACT
McCall JV, Philius SA, Nuckols RW, Sawicki GS,(Poster) “Performance of a powered ankle exoskeleton using neuromuscular model-based control over a range of walking speeds”. 41st Annual Meeting of American Society of Biomechanics, August 8-11, Boulder, Colorado (2017). • ABSTRACT
Nuckols RW, Dick TJ, Franz JR, Sawicki GS,(Poster) “Using elastic ankle exoskeletons to counteract age-related structure-function deficits”. 41st Annual Meeting of American Society of Biomechanics, August 8-11, Boulder, Colorado (2017). • ABSTRACT
Nuckols RW, Sawicki GS,(Thematic Poster) “Effect of speed on the mechanics and energetics of walking with an elastic ankle exoskeleton”. 41st Annual Meeting of American Society of Biomechanics, August 8-11, Boulder, Colorado (2017). • ABSTRACT
Philius SA, McCall JV, Nuckols RW, Sawicki GS,(Poster) “Mechanics and energetics of walking with a powered ankle exoskeleton using neuromuscular model-based control — a parameter study”. 41st Annual Meeting of American Society of Biomechanics, August 8-11, Boulder, Colorado (2017). • ABSTRACT
Poppo MN, McCain EM, Dick TJ, Saul KR, Sawicki GS,(Poster) “Dynamic simulation of elastic ankle exoskeleton effects on plantarflexor muscle-tendon neuromechanics during walking”. 41st Annual Meeting of American Society of Biomechanics, August 8-11, Boulder, Colorado (2017). • ABSTRACT
Punith LK, McKnight M, Narsipur S, Sawicki GS,(Thematic Poster) “Positive force feedback allows for faster and safer recovery in perturbed hopping — at a cost”. 41st Annual Meeting of American Society of Biomechanics, August 8-11, Boulder, Colorado (2017). • ABSTRACT
Rabani AS, Sawicki GS, Riemer R, (TBD) “Prediction equations for leg kinematics and kinetics during slope running”. 41st Annual Meeting of American Society of Biomechanics, August 8-11, Boulder, Colorado (2017). • ABSTRACT
Dick TJ, Punith LK, Sawicki GS,(Talk) “How do we recover from falling in a hole? A joint-level analysis”. XXVI Congress of the International Society of Biomechanics, July 23-27, Brisbane, QL, Australia (2017). • ABSTRACT
Nuckols R, Sawicki GS,(Talk) “Effect of elastic ankle exoskeleton assistance on soleus muscle dynamics during walking”. XXVI Congress of the International Society of Biomechanics, July 23-27, Brisbane, QL, Australia (2017). • ABSTRACT
2016
Sawicki GS, Nardelli P, Cope TC, (Poster) “A novel work loop approach for decoding sensory information in afferent nerves during cyclic muscle contractions”. 46th Annual Meeting of the Society for Neuroscience (SfN), November 12-16, San Diego, California (2016). • ABSTRACT
Danos N, Holt N, Sawicki GS, Azizi E, (Poster) “Modeling muscle-tendon dynamics during walking in aged rats (Rattus norwegius)”. 40th Annual Meeting of American Society of Biomechanics, August 2-5, Raleigh, North Carolina (2016). • ABSTRACT
Doering J, Sawicki GS,(Poster) “Changing environment dynamics can spontaneously shift muscle-tendon function during cyclic contractions”. 40th Annual Meeting of American Society of Biomechanics, August 2-5, Raleigh, North Carolina (2016). • ABSTRACT
Giest TN, Sawicki GS,(Thematic Poster) “Speed-dependent, proportional myoelectric exoskeleton controller with adaptive gains”. 40th Annual Meeting of American Society of Biomechanics, August 2-5, Raleigh, North Carolina (2016). • ABSTRACT
McKnight M, Narsipur S, Sawicki GS,(Poster) “Muscle-tendon model predicts positive force feedback leads to safer, not faster recovery from perturbation”. 40th Annual Meeting of American Society of Biomechanics, August 2-5, Raleigh, North Carolina (2016). • ABSTRACT
Nuckols R, Sawicki GS,(Podium) “The goldilocks zone: Interplay of elastic exoskeleton assistance and walking speed on the mechanics and energetics of walking”. 40th Annual Meeting of American Society of Biomechanics, August 2-5, Raleigh, North Carolina (2016). • ABSTRACT
Nuckols R, Giest TN, Philius S, Sawicki GS,(Poster) “Embodying human plantarflexor muscle-tendon physiology for neuromuscular model-based control of a powered ankle exoskeleton”. 40th Annual Meeting of American Society of Biomechanics, August 2-5, Raleigh, North Carolina (2016). • ABSTRACT
Robertson BD, Vadakkeveedu S, Sawicki GS, (Podium) “An in vitro approach for directly observing muscle-tendon dynamics with parallel elastic mechanical assistance”. 40th Annual Meeting of American Society of Biomechanics, August 2-5, Raleigh, North Carolina (2016). • ABSTRACT • Winner of the 2016 Journal of Biomechanics Award
2015
Browne MG, Sawicki GS,(Thematic Poster) “Development of a visual biofeedback system for center of pressure modification during gait”. 39th Annual Meeting of American Society of Biomechanics, August 5-8, Columbus, Ohio (2015). • ABSTRACT
Doering JA, Sawicki GS,(Talk) “Influence of tendon stiffness on muscle-tendon interaction dynamics during cyclic contractions”. 39th Annual Meeting of American Society of Biomechanics, August 5-8, Columbus, Ohio (2015). • ABSTRACT
Nuckols RW, Farris DJ, Riemer R, Sawicki GS, (Talk) “Redistribution of lower-limb joint power during uphill and downhill walking and running”. 39th Annual Meeting of American Society of Biomechanics, August 5-8, Columbus, Ohio (2015). • ABSTRACT
Takahashi KZ, Gross MT, van Werkhoven H, Piazza SJ, Sawicki GS,(Poster) “The effects of added foot stiffness on soleus muscle fascicle behavior during human walking”. 39th Annual Meeting of American Society of Biomechanics, August 5-8, Columbus, Ohio (2015). • ABSTRACT
Westbrook AE, Sawicki GS,(Thematic Poster) “Modifying ankle joint neuromechanics using an ankle foot orthosis with vibrotactile feedback during human walking”. 39th Annual Meeting of American Society of Biomechanics, August 5-8, Columbus, Ohio (2015). • ABSTRACT
Bell EA, Takahashi KZ, Rider PM, Sawicki GS, Domire ZJ, (Poster) “Effect of plantar fascia stiffness on foot energy absorption during overground walking”.39th Annual Meeting of American Society of Biomechanics, August 5-8, Columbus, Ohio (2015). • ABSTRACT
2014
Farris DJ, Sawicki GS, (Talk) “Paradoxical effects of elastic ankle exoskeletons on plantarflexor muscle mechanics and energetics”. 7th World Congress of Biomechanics, July 6-11, Boston, Massachusetts (2014). • ABSTRACT
Zelik K, Takahashi KZ, Sawicki GS, (Talk) “Positively missing: Reassessing work production in human gait and the implications for assistive technology”. 7th World Congress of Biomechanics, July 6-11, Boston, Massachusetts (2014). • ABSTRACT
Mizrachi S, Riemer R, Sawicki GS, (Poster) “Prediction equations for leg kinematics and kinetics during slope walking and running”. 7th World Congress of Biomechanics, July 6-11, Boston, Massachusetts (2014). • ABSTRACT • 2nd place in the World Congress of Biomechanics M.S. Level Student Paper Award
Takahashi KZ, Lewek MD, Sawicki GS, (Poster) “A user-controlled powered ankle exoskeleton to drive gait modifications post-stroke”. 7th World Congress of Biomechanics, July 6-11, Boston, Massachusetts (2014). • ABSTRACT
Robertson BD, Sawicki GS,(Poster) “Unconstrained workloops reveal frequency-phase coupling in compliant muscle-tendon unit”. 7th World Congress of Biomechanics, July 6-11, Boston, Massachusetts (2014). • ABSTRACT
Wiggin MB, Collins SH, Sawicki GS,(Poster) “Neuromechanics and energetics of walking with a simple passive elastic ankle exoskeleton”. 7th World Congress of Biomechanics, July 6-11, Boston, Massachusetts (2014). • ABSTRACT
2013
Mahon CE, Farris DJ, Sawicki GS, Lewek MD, “Individual limb mechanical analysis of gait following stroke”. 37th Annual Meeting of American Society of Biomechanics, September 4-8, Omaha, Nebraska (2013). • ABSTRACT
Takahashi KZ, Sawicki GS, “A user-controlled powered ankle exoskeleton to assist gait propulsion post-stroke”. 37th Annual Meeting of American Society of Biomechanics, September 4-8, Omaha, Nebraska (2013). • ABSTRACT • Top 10 nomination for Clinical Biomechanics Award
2012
Farris DJ, Sawicki GS,“The effects of wearing a spring-loaded ankle exoskeleton on soleus muscle mechanics during two-legged hopping in humans”. 36th Annual Meeting of American Society of Biomechanics, August 15-18, Gainesville, Florida (2012). • ABSTRACT
Wiggin MB, Sawicki GS, “A passive elastic exoskeleton reduces the metabolic cost of walking using controlled energy storage and release”. 36th Annual Meeting of American Society of Biomechanics, August 15-18, Gainesville, Florida (2012). • ABSTRACT • Winner of the 2012 American Society of Biomechanics President’s Award
Robertson BD, Sawicki GS,“More is not always better: Consequences of exoskeleton assistance in a compliant muscle-tendon system”. 36th Annual Meeting of American Society of Biomechanics, August 15-18, Gainesville, Florida (2012). • ABSTRACT
2011
Wutzke CJ, Sawicki GS, Lewek MD, “Influence of a fixed ankle on joint mechanics and metabolic cost of walking”. 35th Annual Meeting of American Society of Biomechanics, August 10-13, Long Beach, California (2011). • ABSTRACT
Hampton A, Farris DJ, Sawicki GS, “Mechanics and energetics of post-stroke walking: Towards a muscle-level understanding”. 35th Annual Meeting of American Society of Biomechanics, August 10-13, Long Beach, California (2011). • ABSTRACT
Robertson BD, Sawicki GS, “Controlling compliance: Feed-forward stimulation pattern influences elastic tuning during cyclic muscle-tendon contractions”. 35th Annual Meeting of American Society of Biomechanics, August 10-13, Long Beach, California (2011). • ABSTRACT
Matta P, Myers J, Sawicki GS, “The influence of ball mass on youth baseball injury potential: A simulation study”. 35th Annual Meeting of American Society of Biomechanics, August 10-13, Long Beach, California (2011). • ABSTRACT
Farris DJ, Sawicki GS, “Force-velocity behaviour of human gastrocnemius shifts at the walk to run transition”. 35th Annual Meeting of American Society of Biomechanics, August 10-13, Long Beach, California (2011). • ABSTRACT
Farris DJ, Sawicki GS, “The mechanics and energetics of human walking and running: A joint-level perspective”. 35th Annual Meeting of American Society of Biomechanics, August 10-13, Long Beach, California (2011). • ABSTRACT
2010
Sawicki GS, Farris DJ, “Mechanics and energetics of human hopping with a passive-elastic ankle exoskeleton”. 34th Annual Meeting of American Society of Biomechanics, August 18-21, Providence, Rhode Island (2010). • ABSTRACT
Farris DJ, Sawicki GS, “Spring-loaded ankle exoskeletons reduce metabolic cost and alter gastrocnemius fascicle behaviour in human hopping”. 34th Annual Meeting of American Society of Biomechanics, August 18-21, Providence, Rhode Island (2010). • ABSTRACT
Wiggin MB, Collins SH, Sawicki GS, “A passive-elastic ankle exoskeleton using controlled energy storage and release”. 34th Annual Meeting of American Society of Biomechanics, August 18-21, Providence, Rhode Island (2010). • ABSTRACT
2009
Sheppard P, Sawicki GS, Roberts TJ, “Power augmentation in a compliant muscle-tendon system”. 33rd Annual Meeting of American Society of Biomechanics, August 26-29, State College, Pennsylvania (2009). • ABSTRACT
Sawicki GS, Roberts TJ, “Isometric force production requires asymmetric muscle-tendon length trajectory”. 33rd Annual Meeting of American Society of Biomechanics, August 26-29, State College, Pennsylvania (2009). • ABSTRACT
2008
Sawicki GS, Azizi E, Roberts TJ, “Muscle activation timing influences muscle-tendon mechanical performance during cyclic contractions”. North American Congress on Biomechanics, August 5-9, Ann Arbor, Michigan (2008). • ABSTRACT
2007
Sawicki GS, Ferris DP, “Mechanics and energetics of incline walking with powered ankle exoskeletons”. 31st Annual Meeting of American Society of Biomechanics, August 22-25, Palo Alto, California (2007). • ABSTRACT
Sawicki GS, Ferris DP, “Mechanics and energetics of level walking with powered ankle exoskeletons”. 31st Annual Meeting of American Society of Biomechanics, August 22-25, Palo Alto, California (2007). • ABSTRACT
2006
Domingo A, Sawicki GS, Ferris DP, “Kinematics and muscle activity in spinal cord injury patients during locomotor training with and without manual assistance”. Fifth World Congress of Biomechanics, July 29-August 4, Munich, Germany (2006).
Sawicki GS, Ferris DP, “Mechanics and control of a knee-ankle-foot orthosis (KAFO) powered with artificial pneumatic muscles”. Fifth World Congress of Biomechanics, July 29-August 4, Munich, Germany (2006).
2005
Gordon KE, Sawicki GS, Ferris DP, “Mechanical performance of artificial pneumatic muscles to power an ankle-foot orthosis”. XXth Congress of the International Society of Biomechanics and 29th Annual Meeting of the American Society of Biomechanics, August 1-5, Cleveland, Ohio (2005). • ABSTRACT
Domingo A, Sawicki GS, Ferris DP, “Muscle activation during manually assisted treadmill training after incomplete spinal cord injury”. XXth Congress of the International Society of Biomechanics and 29th Annual Meeting of the American Society of Biomechanics, August 1-5, Cleveland, Ohio (2005). • ABSTRACT
Sawicki GS, Domingo A, Ferris DP, “Therapist controlled powered lower limb orthoses to assist locomotor training”. XXth Congress of the International Society of Biomechanics and 29th Annual Meeting of the American Society of Biomechanics, August 1-5, Cleveland, Ohio (2005). • ABSTRACT
Sawicki GS, Domingo A, Ferris DP, “Powered lower limb orthoses to assist gait rehabilitation after spinal cord injury”. The Society for the Neural Control of Movement Annual Meeting, April 12-17, Key Biscayne, Florida (2005).
2004
Sawicki GS,”Do we walk at the ‘edge of chaos’: Complexity in neuromechanical systems”. XXth Proceedings of the Santa Fe Institute Complex Systems Summer School, (2004).
Sawicki GS, Benkoe G, Wantia J, Erb, P, “Coupled motivations for power, affiliation, and achievement: Modeling resource allocation dynamics in social organizations”. XXth Proceedings of the Santa Fe Institute Complex Systems Summer School, (2004).
Sawicki GS, Peethambaran, A, Ferris DP, “Powered lower limb orthoses to assist locomotor training”. Christopher Reeve Paralysis Foundation Spinal Cord Symposium, March 21-23, Oak Brook, Illinois, USA (2004).
2003
Sawicki GS, Ferris DP, “A knee-ankle-foot orthosis (KAFO) powered by artificial pneumatic muscles”. XIXth Congress of the International Society of Biomechanics, July 6-11, Dunedin, New Zealand (2003). • ABSTRACT