Cryotherapy on Muscle Function

Plain-language summary

On-field sports injuries are a common issue that significantly impacts athletes' performance and overall health. In team sports such as football, basketball, and volleyball, muscle and joint injuries are particularly frequent. Cryotherapy, including cold pack and cold spray applications, is widely used in the acute management of such injuries due to its practicality and rapid application. It is effective in reducing pain and edema by constricting blood vessels and slowing neural activity. While its analgesic effects are well-known, some studies suggest cryotherapy may also influence balance and proprioception. This study aims to investigate the acute effects of cryotherapy (cold pack and spray) on muscle mechanical properties, muscle strength, pain and EMG activity in healthy individuals. A randomized, controlled experimental study will be conducted on healthy participants. Subjects will be divided into two groups: cold pack application and cold spray application. Quadriceps muscle mechanical properties will be assessed using a Myoton device; muscle strength will be evaluated via dynamometry, and muscle activity will be evaluated via electromyographic (EMG) device- NeuroTrac® MyoPlus 2. Each participant will be evaluated at four time points: baseline (pre-intervention), immediately after the intervention, 3 minutes post-intervention, and 5 minutes post-intervention. The effects of each modality will be compared both within and between groups to assess the short-term physiological changes induced by cryotherapy.

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