Biomechanical Comparison of Countermovement Jumps Performed on Land and in Water: Age Effects

Journal of Sport Rehabilitation
Talin J LouderEadric Bressel

Abstract

The aquatic environment provides a low-impact alternative to land-based exercise and rehabilitation in older adults. Evaluate the biomechanics of older adults and young adults performing jumping movements on land and in water. Cross-sectional, mixed-factorial experiment; adjustable-depth pool at sports medicine research facility. Fifty-six young adults (age = 22.0 [3.9] y) and 12 healthy older adults (age = 57.3 [4.4] y). Each participant performed 6 maximal effort countermovement jumps: 3 jumps were performed on land, and 3 other jumps were performed with participants immersed in chest-deep water. Using data from the amortization and propulsive phases of jumping, the authors computed the following kinetic and kinematic measures: peak and mean mechanical power, peak force, amortization time and rate, unweighting and propulsive times, and lower-extremity segment kinematics. Mechanical power outputs were greater in younger adults (peak: 7322 [4035] W) versus older adults (peak: 5661.65 [2639.86] W) and for jumps performed in water (peak: 9387 [3981] W) versus on land (peak: 4545.84 [1356.53] W). Peak dorsiflexion velocities were greater for jumps performed in water (66 [34] deg/s) versus on land (4 [7] deg/s). The amortization ra...Continue Reading

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Citations

Oct 10, 2018·Journal of Aging and Physical Activity·Anna C SeverinMark G L Sayers
Feb 20, 2019·Scandinavian Journal of Medicine & Science in Sports·Kuei-Yu ChienWan-Chin Chen
Jun 12, 2019·Research Quarterly for Exercise and Sport·Cristine Lima AlbertonStephanie Santana Pinto
Mar 25, 2020·European Journal of Sport Science·Cristine Lima AlbertonLuiz Fernando Martins Kruel
Aug 13, 2020·International Journal of Environmental Research and Public Health·Antonio Cuesta-VargasDavid Perez-Cruzado
Feb 12, 2021·Sports Biomechanics·Cristine Lima AlbertonStephanie Santana Pinto

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