Abstract
Motor-load experiment using a treadmil was performed on eleven members of a university soccer club (average age; 18.9 year-old), and their heart rate, blood pressure, oxyzen consumption, and maximum breathing capacity were measured. In addition, their heart rates during the practice or game were checked using an electrocardiograph. Results obtained are: 1) Change in heart rate during the practice revealed that their practice was a proper amount, performing appropriate training with regular intervals of rest. 2) Heart rate during the game appeared higher than that during the practice, occasionally showing a sudden rise in heart rate. This rise, also observed during the training of combination plays, was considered to involve a risk. 3) Changing pattern in heart rate showed a difference according to their playing positions.
