National Strength and Conditioning Association (NSCA)
Abstract
Journal ArticlePROVIDING CYCLISTS WITH A reliable measure of exercise intensity presents unique challenges. Environmental factors such as wind speed, road grade and surface texture, and air density interactively influence the resistance encountered during cycling and thus alter the speed a cyclist can maintain while riding at any specific intensity. For example, a cyclist might be capable of averaging 40 km/h in a tailwind with very little effort, but might be unable to maintain 20 km/h when climbing a hill at maximal effort
