Before revision: Soichi Sakamoto, who coached the University of Hawaii, was an early advocate of interval training for his competitive swimmers, and Indiana Coach James Counselman , who had a Doctorate in Excercise Physiology was highly innovative in advancing the use of interval training for his swimmers as well.
After revision: Soichi Sakamoto, who coached the University of Hawaii, was an early advocate of interval training for his competitive swimmers, and Indiana Coach James Counsilman , who had a Doctorate in Exercise Physiology was highly innovative in advancing the use of interval training for his swimmers as well.