Energy System Interplay
By Stephanie Couper
Once in the water you have to paddle out to catch a wave, this is using the anaerobic system as it has an intensity of around 80% and lasts for a good minute or two.
When waiting for a wave on your board, the aerobic system becomes dominant once again as your body uses this resting time to re-synthesize ATP.
Once a good wave comes along the surfer then paddles like mad the ATP system most as the short paddle and jump into standing position is of max intensity and would only last up to 15 seconds. Once standing the body would then run out of ATP and then switch over and start using the Aerobic system, if the surfer manages to ride the wave for longer than 2 minutes the body would then switch over into the aerobic system and oxygen intake and blood flow would have matched the intensity the body is working at.