Changes in Landing Mechanics After Cold-Water Immersion

• Autores: He Wang, Michael M. Toner, Thomas J. Lemonda, Mor Zohar
• Localización: Research quarterly for exercise and sport, ISSN 0270-1367, Vol. 81, Nº. 2, 2010, págs. 127-132
• Idioma: inglés
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• Resumen

  • The purpose of this study was to investigate the influence of cold-water immersion on kinematics and kinetics during a drop-landing task. On four separate occasions, 9 men performed drop-landings from a 0.6-m platform to a force platform following 30-min immersion to the hip-joint in thermoneutral water (control; 34 ºC) and in cold water (20 ºC) to the ankle (low level), knee (medium level), and hip (high level) joints. Sagittal plane kinematics and kinetics were determined. Oneway repeated measures multivariate analysis of variance was used for statistical analysis. Compared to the control, the low-level condition had similar joint mechanics, the medium level showed 26% less ankle mechanical work (p = .003), and the high level showed 9% less vertical ground reaction force (p = .025) and 23% less ankle mechanical work (p = .023) with 18% greater trunk flexion (p = .024). In summary, the low-level cold-water immersion had no effect on landing mechanics. The medium- and high-level cold-water immersion resulted in a reduction in impact absorption at the ankle joint during landing. The increased trunk flexion after high-level immersion helped dissipate landing impact