METABOLIC RESPONSES TO INTERVAL TRAINING-PROGRAMS OF HIGH AND LOW-POWER OUTPUT

  • 1 January 1977
    • journal article
    • research article
    • Vol. 9  (3) , 191-196
Abstract
The metabolic responses of 30 college-aged males were compared following high power (30 s runs with 19 repetitions-Group HP) and low power (120 s runs with 7 repetitions-Group LP) interval training programs (8 wk, 3 days/wk). Measurements included: maximal aerobic power (.ovrhdot.VO2 max [maximal O2 uptake] open circuit spirometry); maximal lactacid capacity (net La max, blood LA accumulation following exhaustive exercise); net energy production (net .ovrhdot.VO2 and net La) following a 2 min run that was exhaustive before but not following training; and maximal muscular power (stair-climbing procedure). Significant but equal increases occurred in .ovrhdot.VO2 max in both groups; there was no change in either group in net La max and the net .ovrhdot.VO2 during the 2 min run was unchanged. Net La was significantly decreased in both groups, with the decrease significantly greater in Group LP with no change in either group in muscular power. Low power and high power output interval training programs seem to elicit similar changes in maximal aerobic and anaerobic metabolism, and the physiological and or biochemical changes responsible for lowered lactic acid production during heavy, but submaximal exercise following training, are produced to a greater extent by the low power program.

This publication has 6 references indexed in Scilit: