Issn Print: 0195-9131
Publication Date: 1997/05/01
THE HEART RATE/OXYGEN CONSUMPTION RESPONSE CURVES DURING IN-LINE SKATING AND RUNNING 1161
S. Jungbluth; P. S. Freedson
Excerpt
The purpose of the present study was to compare the heart rate/oxygen consumption (HR/VO2) relationship between in-line skating (ILS) and running (RUN) during steady state laboratory conditions. Eight male (23.3 yrs., 80.6 kg., 185.6 cm) and eight female (22.6 yrs., 61.6 kg., 166.5 cm) recreational in-line skaters completed two constant speed, grade incremented VO2max tests (one ILS, one RUN) and 5 ILS and 5 RUN submaximal bouts (8 min for each test). Speed was adjusted during each submaximal bout to elicit 65, 70, 75, 80, and 90% of mode specific maximal heart rate (HRmax). Paired t-tests revealed significant differences between modes for relative VO2max (X±SD: RUN = 54.4±9.3, ILS = 52.0±9.6 ml·kg-1·min-1). No difference was found for maximal ventilation (Vemax). Repeated measures analysis of variance revealed no significant differences between exercise mode or gender in the slopes and intercepts of the individual HR/VO2 regression lines. It is concluded that for recreational in-line skaters/runners, the HR/VO2 relationship is equivalent for treadmill running and skating. Therefore, it is likely that the same exercise intensity range based on%HRmax for both modes of exercise will elicit similar absolute VO2 responses.
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