Abstract:  Exercise or training in cold environment has its unique characteristics of changes in body functions, such as body temperature regulation, cardiopulmonary function, immune system, neuroendocrine system, energy metabolism, endurance quality. We study the characteristics of all aspects of body functions in cold environment and make use of the effective role of exercise in cold environment to avoid their adverse effects, so as to complete the exercise and training much more effectively in cold environment. 

Key words:  , cold environment, body function, exercise