A Case Study on Mechanical Power Output and Physiological Intensity during High Intensity Intermittent Exercise by Collegiate Wrestlers

Abstract

J-GLOBAL ID : 201301090685531402J-GLOBAL ID : 201801009314123820J-GLOBAL ID : 202101004237845144The purpose of this study was to compare the differences in mechanical power and physiological intensity during high intensity intermittent exercise on a bicycle ergometer by wrestlers of different performance levels. Three members of a collegiate wrestling team participated in (1) incremental load test to determine aerobic work capacity (VO_2max), (2) a maximal anaerobic power test and a 90 second Wingate test to determine anaerobic work capacity, and (3) high intensity intermittent exercise (20 sec × 8 sets, 170% VO_2max) on a bicycle ergometer. Bicycle ergometer was used for all the tests. Mechanical power output, oxygen uptake, and heart rate were measured during all tests. Oxygen uptake and heart rate were recorded over time during the recovery period only after the completion of high intensity intermittent exercise. As a result, the ratio of power output of each athlete was calculated. Athlete A was able to perform at least 100% until the third set, B the fourth set, and C the third set. The average power of A (6.3 W/kg) and B (5.7 W/kg) tended to be higher than that of C (4.3 W/kg). Athlete B (9.6 ml/kg/min) had the lowest oxygen uptake at 2 min post-exercise, while A (12.8 ml/kg/min) and C (12.8 ml/kg/min) showed no significant differences. Athletes with superior anaerobic and aerobic work capacity among wrestlers did not exhibit higher mechanical power output during high intensity intermittent exercise, and athletes with superior wrestling athletic performance tended to have smaller repetitions of high intensity intermittent exercise and smaller reduction rates during exercise.1520860078896017792application/pdfdepartmental bulletin pape