postconcussion is altered landing biomechanics. In the absence of concussion, aberrant lower extremity biomechanics are prospectively associated with increased risk for musculoskeletal injury. 10 , 11 For instance, greater external knee abduction moments 11 and smaller knee flexion angles 10 during landing
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Concussion History Moderates Trunk Motion and Lower Extremity Biomechanical Relationships During Jump Landing and Cutting
Kayla M. Kowalczyk, Eric J. Shumski, Julianne D. Schmidt, and Robert C. Lynall
Lower Extremity Biomechanical Differences Between Female Dancers and Soccer Players
Hayley M. Ericksen and Rachele E. Vogelpohl
factors that may increase one’s risk of ACL injury. Jump-landing biomechanics is a factor which is potentially modifiable, and biomechanical differences in jump-landing have been reported prospectively in those who have later gone on to tear their ACL. 7 Professional ballet dancers have been found to
Biomechanical Determinants of the Reactive Strength Index During Drop Jumps
Kristof Kipp, Michael T. Kiely, Matthew D. Giordanelli, Philip J. Malloy, and Christopher F. Geiser
-sectional differences and monitoring longitudinal changes in maximal dynamic lower-extremity performance. Although the RSI provides simple insight into dynamic lower-extremity performance during a DJ, not much is known about its biomechanical determinants. Beyond the variables of jump height and ground-contact time
Gait Biomechanics Following Taping and Bracing in Patients With Chronic Ankle Instability: A Critically Appraised Topic
Kimmery Migel and Erik Wikstrom
to contribute to aberrant gait biomechanics observed in those with CAI. More specifically, those with CAI demonstrate excessive inversion at heel strike and throughout stance as well as excessive inversion and plantar flexion in the swing phase of gait. 2 These impairments increase the risk of
The Effects of Walking Workstations on Biomechanical Performance
Daniel M. Grindle, Lauren Baker, Mike Furr, Tim Puterio, Brian Knarr, and Jill Higginson
while they work. Currently, there is a lack of research on the gait biomechanics of walking workstation users. Working while walking may alter movement patterns, as previous studies have demonstrated that the performance of a secondary task during walking alters gait 12 – 14 especially in older
Concussive Biomechanics in a Women’s Soccer Player: A Validation Clinical Case Report
Hallie D. Sayre and Tom G. Bowman
to understand all aspects of a concussion including identification, evaluation, and the return to play process. 2 A concussion is defined as “a traumatic brain injury induced by biomechanical forces.” 3 Typically, concussions occur from a force applied directly or indirectly to the skull that then
Determinants of 1500-m Front-Crawl Swimming Performance in Triathletes: Influence of Physiological and Biomechanical Variables
Óscar López-Belmonte, Jesús J. Ruiz-Navarro, Ana Gay, Francisco Cuenca-Fernández, Roberto Cejuela, and Raúl Arellano
, swimming has been less studied compared with cycling and running sections, 15 probably because of the complexity of assessing in the aquatic environment. In swimming, biomechanical analysis is crucial to determine relationships between performance and physiological variables. 16 The assessment of the
Using Monte Carlo Simulation to Propagate Processing Parameter Uncertainty to the Statistical Analyses of Biomechanical Trajectories
Todd C. Pataky
arms, propagate to uncertainty in final results. Plausible value ranges for these biomechanical model parameters can generally be determined through in vitro and/or in vivo experimentation. Although not generally appearing in the literature, MC simulations can also handle uncertainty in nonmeasurable
Vertical Jump Biomechanics Altered With Virtual Overhead Goal
Kevin R. Ford, Anh-Dung Nguyen, Eric J. Hegedus, and Jeffrey B. Taylor
Virtual environments with real-time feedback can simulate extrinsic goals that mimic real life conditions. The purpose was to compare jump performance and biomechanics with a physical overhead goal (POG) and with a virtual overhead goal (VOG). Fourteen female subjects participated (age: 18.8 ± 1.1 years, height: 163.2 ± 8.1 cm, weight 63.0 ± 7.9 kg). Sagittal plane trunk, hip, and knee biomechanics were calculated during the landing and take-off phases of drop vertical jump with different goal conditions. Repeated-measures ANOVAs determined differences between goal conditions. Vertical jump height displacement was not different during VOG compared with POG. Greater hip extensor moment (P < .001*) and hip angular impulse (P < .004*) were found during VOG compared with POG. Subjects landed more erect with less magnitude of trunk flexion (P = .002*) during POG compared with VOG. A virtual target can optimize jump height and promote increased hip moments and trunk flexion. This may be a useful alternative to physical targets to improve performance during certain biomechanical testing, screening, and training conditions.
Tapping Into Skeletal Muscle Biomechanics for Design and Control of Lower Limb Exoskeletons: A Narrative Review
Zahra S. Mahdian, Huawei Wang, Mohamed Irfan Mohamed Refai, Guillaume Durandau, Massimo Sartori, and Mhairi K. MacLean
biological joint(s) and, thus, interact directly with the wearer’s musculoskeletal system. To effectively unload or augment the biological joint, knowledge of joint biomechanics is typically incorporated into the design or control of the exo. Generally speaking, the research field has a good comprehension of
