Countermovement Jump Inter-Limb Asymmetries in Collegiate Basketball Players
Date
2019-04-30Author
Heishman, Aaron
Daub, Bryce
Miller, Ryan
Brown, Brady
Freitas, Eduardo
Bemben, Michael G.
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Show full item recordAbstract
The purpose of the present study was to establish the intrasession and intersession
reliability of variables obtained from a force plate that was used to quantitate lower extremity
inter-limb asymmetry during the bilateral countermovement jump (CMJ). Secondarily, a comparison
was performed to determine the influence of the jump protocol CMJ with or without an arm swing
(CMJ AS and CMJ NAS, respectively) on inter-limb asymmetries. Twenty-two collegiate basketball
players performed three CMJ AS and three CMJ NAS on dual force platforms during two separate
testing sessions. A majority of variables met the acceptable criterion of intersession and intrasession
relative reliability (ICC > 0.700), while fewer than half met standards established for absolute
reliability (CV < 10%). CMJ protocol appeared to influence asymmetries; Concentric Impulse-100 ms,
Eccentric Braking Rate of Force Development, Eccentric Deceleration, and Force at Zero velocity
were significantly di erent between jumping conditions (CMJAS versus CMJ NAS; p < 0.05). The
present data establish the reliability and smallest worthwhile change of inter-limb asymmetries
during the CMJ, while also identifying the influence of CMJ protocol on inter-limb asymmetries,
which can be useful to practitioners and clinicians in order to e ectively monitor changes associated
with performance, injury risk, and return-to-play strategies.
Citation
Heishman, A., Daub, B., Miller, R., Brown, B., Freitas, E., & Bemben, M. (2019). Countermovement Jump Inter-Limb Asymmetries in Collegiate Basketball Players. Sports, 7(5), 103. doi: 10.3390/sports7050103
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Open Access fees paid for in whole or in part by the University of Oklahoma Libraries
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