Table 1.
Responses to continuous cycling (CONT) compared with interval cycling of equivalent duration (INTV) (mean ± SD)
| CONT | INT | |
|---|---|---|
| n = 12 | n = 12 | |
| Physiological measures during 20-min conditioning | ||
| Mean power output (W) | 78 ± 22 | 99 ± 18a |
| Mean power output15 sec effort (W) | Not applicable | 281 ± 72 |
| Mean heart rate (bpm) | 126 ± 8 | 136 ± 1a |
| Mean percentage HRmax | 68 ± 4 | 73 ± 5a |
| O2 (L.min−1) | 1.23 ± 0.24 | 1.57 ± 0.28a |
| Est. energy expenditure (kJ) | 506 ± 99 | 645 ± 116a |
| Glucosepre (mmol∙L−1) | 5.9 ± 1.0 | 5.6 ± 1.2 |
| Glucosepost (mmol∙L -1) | 4.8 ± 0.8b | 4.6 ± 0.9b |
| Psychological measures during 20-min conditioning | ||
| Mean RPEoverall | 11 ± 2 | 12 ± 1 |
| Mean RPE15s_effort | Not applicable | 16 ± 1 |
| Exercise enjoyment (PACES score) | 82 ± 21 | 101 ± 12a |
Footnotes: HR max percentage age-predicted heart rate maximum, PACES Physical Activity Enjoyment Scale (higher score indicates greater enjoyment of exercise), RPE rate of perceived exertion from of 6 to 20 scale; 6 = no exertion, 20 = maximal exertion
adenotes significant difference between conditions (P < 0.05)
bdenotes significant difference pre/post within condition (P < 0 .05)