Changes in V02max resulting from bicycle training at different intensities holding total mechanical work constant.

Abstract Effects of different training intensities on VO2 max were determined. Sixteen male Ss (ages 16–18) were randomly assigned to 1 of 3 training groups or a control group. The training groups trained 3 days/wk on bicycle ergometers at different intensities (85%, 75%, or 65% of HR max) with all groups doing the same total mechanical work (12,000 kpm per training session). Measurement of VO2 at each of the 3 workloads in 2 anthropometrically similar individuals revealed a similar O2 cost needed to accomplish 12,000 kpm of mechanical work. Analysis of covariance revealed a significant difference (p < .01) in VO2 max between the groups. Significant differences (p < .01) were found between both the 85% and 75% groups and the control. No significant differences were found between the 65% group and the control or between the 75% and the 85% group. Within the limitations of the study, it was concluded that when comparing between training intensities while holding mechanical work constant it is necessary to w...

[1]  C E Billings,et al.  Comparative effects of two physical conditioning programs on cardiovascular fitness in man. , 1969, Research quarterly.

[2]  T. K. Cureton.  Relationship of physical fitness to athletic performance and sports. , 1956, Journal of the American Medical Association.

[3]  T. K. Cureton.  The Physiological Effects of Exercise Programs on Adults , 1971 .

[4]  M. Karvonen,et al.  The effects of training on heart rate; a longitudinal study. , 1957, Annales medicinae experimentalis et biologiae Fenniae.

[5]  B. Sharkey.  Intensity and duration of training and the development of cardiorespiratory endurance. , 1970, Medicine and science in sports.

[6]  P. Åstrand,et al.  Textbook of Work Physiology , 1970 .

[7]  H Roskamm,et al.  Optimum patterns of exercise for healthy adults. , 1967, Canadian Medical Association journal.

[8]  J. Mitchell,et al.  The physiological meaning of the maximal oxygen intake test. , 1958, The Journal of clinical investigation.

[9]  C E Billings,et al.  Intensity and distance of interval training programs and changes in aerobic power. , 1973, Medicine and science in sports.

[10]  R. Margaria,et al.  Energy cost of running. , 1963, Journal of applied physiology.

[11]  B. Sharkey,et al.  Cardiorespiratory adaptations to training at specified intensities. , 1967, Research quarterly.

[12]  I. Faria.  Cardiovascular response to exercise as influenced by training of various intensities. , 1970, Research quarterly.

[13]  E. L. Fox,et al.  The physiological basis of physical education and athletics , 1971 .

[14]  M. Pollock,et al.  Effects of training two days per week at different intensities on middle-aged men. , 1972, Medicine and science in sports.