Cardiopulmonary profile of isokinetic exercise

Reer R, Fromme A, Thorwesten L, Eisele R, Simon G, Jerosch J

Abstract in digital collection (conference)

Abstract

Purpose: The aim if this study was to determine the effects of isokinetic exercise on the cardiopulmonary system. Material and methods: We examined 11 healthy volunteers (2 women, 9 men, height: 1.83 ±0,08 m, weight: 73.7±10,5 kg; mean ± SD) aged from 21 to 29 years (24.4 ±1,7years) who participated in an isokinetic exercise (quadriceps curls) on the Cybex 6000 training & rehabilitation system. The training session consisted of 8 sets with 10 maximal repetitions and a break of 2 min after each set. Before the exercise test, a 5-min warm-up program on the bike with a workload of 1 W/kg was carried out by each test person. Results: Maximal heart rate was 161±11.1 beats/min, maximal lactate concentration was within a range of 5.7 and 14.1 mmolil (average: 8.8±2.5 mmol/l), systolic blood pressure increased from 123.6±7,4 at rest up to 174.5±15.1 mmHg at maximal workload. Oxygen uptake rose from 525.62±182.7 to 2124.2±513.8 ml/min, ventilation from 19.1±5.4 after the warm-up phase on the bike to 57.7±18.0 l/min; respiratory quotient was within a range of 0.87 and 1.30. Torque maxima (195,2±47,8 vs 136,4±32,9 Nm) and total physical work (2009,2±573,5 vs 1532,1±383,4 J) of the extensor muscles were significantly higher (p<0,05) than those of the flexor muscles. Conclusion: The present data suggest that isokinetic exerise can be associated with a relatively high strain on the cardiopulmonary system. Therefore, depending on the age, the predisposition to dieseases of the cardiopulmonary system ant the overall fitness, the cardiovascular sitzuation should be taken into account and the dosage level for isokinetic exercise should be carefully adapted to individual needs and reactions.

Details zur Publikation

Release year: 1995
Language in which the publication is written: English