Article
Version 1
Preserved in Portico This version is not peer-reviewed
Lower Extremity Joint Kinetics during Walk–to–Run and Run–to–Walk Transitions
Version 1
: Received: 12 March 2024 / Approved: 12 March 2024 / Online: 12 March 2024 (14:30:22 CET)
A peer-reviewed article of this Preprint also exists.
Jin, L.; Hahn, M.E. Lower Extremity Joint Kinetics during Walk-to-Run and Run-to-Walk Transitions. Biomechanics 2024, 4, 246-258. Jin, L.; Hahn, M.E. Lower Extremity Joint Kinetics during Walk-to-Run and Run-to-Walk Transitions. Biomechanics 2024, 4, 246-258.
Abstract
Lower extremity joint kinetic factors are thought to modulate walk–to–run transition (WRT) and run–to–walk transition (RWT). This study aimed to investigate joint stiffness and energetic patterns during the WRT and RWT processes and identify whether gait transitions occurred within a single step or not. Ten healthy subjects participated in treadmill WRT (1.8 m/s – 2.4 m/s) and RWT (2.4 m/s – 1.8 m/s) tests. We investigated two steps before transition (S–2, S–1), two steps after transition (S1, S2) and the transition step (S0). We found significant differences between S2 and S–2 for ankle joint stiffness during WRT and RWT (p < 0.001); and for hip joint stiffness, we found significant differences between S1 and S–1 during WRT and RWT (p ≤ 0.001). Additionally, stance phase mechanical energy generation was observed to transfer from proximal to distal joints at S0 during WRT, and from distal to proximal at S0 during RWT. Transition step ankle kinematic and kinetic patterns were similar to the target locomotion task gait format in both WRT and RWT. Moreover, RWT required longer adaptation time compared with WRT. These findings indicate that WRT and RWT were modulated before and after the actual transitions, not within a single step. Redistribution of joint mechanical work generation was related to gait transition triggers, which modulate the WRT and RWT process.
Keywords
gait transition; joint kinetics; gait analysis; joint stiffness
Subject
Public Health and Healthcare, Other
Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Comments (0)
We encourage comments and feedback from a broad range of readers. See criteria for comments and our Diversity statement.
Leave a public commentSend a private comment to the author(s)
* All users must log in before leaving a comment
