IMPROVEMENT OF PHYSICAL FITNESS BY INTERVAL TRAINING: II. REQUIRED TRAINING FREQUENCY.
OHIO STATE UNIV RESEARCH FOUNDATION COLUMBUS
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A study was designed to ascertain whether a training frequency of 2 days per week would produce improvement in cardio-respiratory endurance comparable to that obtained from a program consisting of 4 workouts per week. It was found that cardio-respiratory endurance is increased significantly by a 7-week interval training program a training frequency of 4 days per week compared with 2 per week produces greater improvement only in submaximal exercise and recovery heart rates and maximal oxygen consumption is improved by the same magnitude by a 7-week interval training program with 2 workouts per week as it is with 4 and 5 workouts per week.
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