Kinesiology, Vol. 56 No. 2, 2024.
Original scientific paper
https://doi.org/10.26582/k.56.2.6
The effects of vertical jump and sprint fatigue on total-body biomechanics
Eric M. Mosier
; Exercise Science Laboratory, Kinesiology Department, Washburn, University, Topeka, KS, USA
*
Andrew C. Fry
; Jayhawk Athletic Performance Laboratory – Wu Tsai Human Performance Alliance, University of Kansas, Lawrence, KS, USA
Justin X. Nicoll
; Department of Kinesiology, California State University, Northridge, CA, USA
Stephanie A. Sontag
; Applied Neuromuscular Physiology Laboratory, Oklahoma State University, Stillwater, OK, USA
Dimitrije Cabarkapa
; Jayhawk Athletic Performance Laboratory – Wu Tsai Human Performance Alliance, University of Kansas, Lawrence, KS, USA
Rhonda C. Beemer
; Human Performance Laboratory, School of Health Science and Wellness, Northwest Missouri State University, Maryville, MO, USA
* Corresponding author.
Abstract
This study compared the kinetic and kinematic variables measured by a three-dimensional markerless motion capture system (MCS) to identify alterations in lower-extremity performance following vertical jump (VJ) and sprint anaerobic fatiguing tasks. Eleven females (X− ±SD; 20.8±1.1 years, 72.2±7.4 cm, 68.0±7.2 kg) and eleven males (23.0±2.6 years., 180.3±4.8 cm, 80.4±7.3 kg) volunteered to participate in the present investigation. Participants were screened using the Functional Motion Analysis (FMA) protocol, consisting of 19 full-body motions, from which algorithm-derived scores were calculated [i.e. composite, power, functional strength, dysfunction, vulnerability, and exercise readiness score (ERS)] pre- and post-fatiguing tests. Each participant completed one familiarization session and three randomized acute fatiguing protocols [i.e. control, repeated vertical jump test (RVJT), 25-second resisted sprint test]. The repeated measures MANOVA indicated a statistically significant three-way interaction (score x condition x time). Follow-up analyses indicated differences between pre- and post-tests in composite score (1556.43±307.8; 1368.00±264.62), power score (813.34±242.39; 687.32±164.83), and ERS (18.16±4.75; 16.02±3.54) during the RVJT experimental sessions, respectively. The FMA scores suggested decrements in performance are first observed in the decreases in power production during high velocity movements (i.e., RVJTs), and the viability of a MCS to evaluate biomechanical alterations following fatiguing tasks.
Keywords
kinetics; kinematics; markerless motion capture; performance
Hrčak ID:
322985
URI
Publication date:
31.12.2024.
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