American scientists determined that the performance of the musculature decreases by up to 8 % when the temperature is reduced by 1°C.

The muscle strength is reduced by up to 50 % as a result of cold feet and hands. Based on this, it can be concluded that cold feet and hands significantly reduce the physical performance.

In addition, it is presumed that cold feet and hands are the main cause for sports-related injuries. It is not in vain that athletes warm up for hours before competing.