Table 1. Mean energy expenditure and intensity during sexual activity in men and women.
| All Participants (n = 42) | Men (n = 21) | Range | Women (n = 21) | Range | |
|---|---|---|---|---|---|
| Age (yrs) | 22.6 ± 2.8 | 22.7 ± 2.7 | 19-30 | 22.4 ± 2.9 | 19-31 |
| Body mass index (kg/m2) | 22.9 ± 2.8 | 24.2 ± 2.7 | 19.5-31.0 | 21.6 ± 2.3* | 16.9-26.6 |
| Duration of relationship (months) | 13.4 ± 5.5 | ||||
| Duration of SA (min) | 24.7 ± 12.2 | ||||
| AEE of SA (kcal) | 84.8 ± 43.5a | 101 ± 52a | 13.0-306.1 | 69.1 ± 25.6*a | 11.6-164.1 |
| REE of SA (kcal/min) | 3.6 ± 1.3a | 4.2 ± 1.3a | 1.2-7.9 | 3.1 ± 1.0*a | 1.2-8.4 |
| Intensity of SA (METS) | 5.8 ± 1.3a | 6.0 ± 1.3a | 1.4-9.2 | 5.6 ± 1.2a | 1.3-9.6 |
| PEE of SA (kcal) | 87.4 ± 54.2 | 100 ± 63 | 15.0-300 | 76.2 ± 43.3 | 5.0-250 |
| AEE of treadmill (kcal) | 245 ± 73 | 276 ± 68 | 149-390 | 213 ± 64.3* | 120-381 |
| REE of treadmill (kcal/min) | 8.2 ± 2.4 | 9.2 ± 2.3 | 5.0-13.0 | 7.1 ± 2.2* | 4.0-12.7 |
| Intensity of treadmill (METS) | 8.4 ± 1.6 | 8.5 ± 1.5 | 5.7-10.6 | 8.4 ± 1.8 | 5.2-10.8 |
| AEE SA vs. AEE of treadmill (%) | 37.8 ± 19.9 | 31.6 ± 11.9 | 17.2-58.2 | 44.0 ± 24.2 | 12.9-98.5 |
| REE SA vs. REE of treadmill (%) | 46.7 ± 16.9 | 47.5 ± 17.5 | 22.6-87.7 | 46.0 ± 16.6 | 16.7-81.9 |
| Intensity SA vs. intensity treadmill (%) | 71.0 ± 20.6 | 73.0 ± 20.1 | 37.6-114 | 69.0 ± 21.4 | 27.4-102 |
Values are means ± SD. SA: sexual activity; AEE: absolute energy expenditure; REE: relative energy expenditure; PEE: perceived energy expenditure. * Significantly different from men (P < 0.05). a Significantly different from treadmill (P < 0.05).