Comparison Of Two Maximal Anaerobic Cycling Tests
INTERNATIONAL JOURNAL OF SPORTS MEDICINE(1996)
Abstract
The purpose of this study was to compare two cycle ergometer modifications of the maximal anaerobic running test (MART) with each other and with the MART. Ten male physical education students performed the two maximal anaerobic cycling tests (MACT) in a random order and the MART between the MACTs. Each test consisted of n . 20-s exercise bouts with a 100-s recovery period between them. Based on the ACSM equations the oxygen demand of the initial bout in each test equalled 56 ml . kg(-1) . min(-1) and the increase for each consecutive bout was 6 ml . kg(-1) . min(-1). In MACT(res) the resistance was increased and the pedalling frequency was kept constant (100 rpm) while in MACT-(freq) the frequency was increased and the resistance was constant (0.077 . body weight). in the MART the velocity of the treadmill was increased and the slope was constant (4 degrees). Stood lactate (BLa) concentration was measured at rest, 40 s after each run and during a 10-min recovery period. Maximal power (P-max) was similar in the MART, MACT(res) and MACT(freq) (107 +/- 4, 107 +/- 8 and 105 +/- 6 ml . kg(-1) . min(-1), respectively) while significant differences (p <0.05) were observed in the peak BLa (12.8 +/- 1.3, 15.6 +/- 1.7, and 14.7 +/- 2.1 mM, respectively). BLa was lower in the MACT(freq) than in the MACT(res) until the oxygen demand of 86 ml . kg(-1) . min(-1) and it was higher in both MACTs compared to the MART at each workload. We concluded that the MART can be modified for the bicycle ergometer although metabolic acidosis was greater in bicycle modifications. Further, the comparison of the MACT(res) and MACT(freq) showed that blood lactate accumulation was greater at the higher pedalling frequency.
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Key words
anaerobic power, anaerobic capacity, blood lactate, exercise test
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