Table 1.

Body weight and composition, physical activity, and energy expenditure in female high- and low-capacity runners (HCR, LCR) subjected to 21 days of 50% calorie restriction (CR), mean±SEM.

FEMALES		BW (g)^†	Fat mass (g)^†	Lean mass (g)^†^‡	Physical activity (beam breaks/min)			Energy expenditure (kcal/hr)
					Horizontal^†^‡	Ambulatory^†^‡	Vertical^†^‡	Total^†^‡	Resting^†^‡	Non-resting^†^‡
HCR	Before CR	245.85 ± 5.63	21.45 ± 1.71	185.94 ± 4.68	5.9 1 ± 0.27	2.18 ± 0.13	0.90 ± 0.04	1.80 ± 0.05	1.19 ± 0.02	0.61 ± 0.02
	After CR	199.21 ± 4.13	9.31 ± 2.07	162.06 ± 4.03	3.60 ± 0.17	1.33 ± 0.08	0.39 ± 0.04	1.23 ± 0.04	0.83 ± 0.01	0.40 ± 0.02
	Change	−46.64 ± 3.68^**	−12.14 ± 0.72^**	−23.88 ± 3.30^**	−2.3 ± 0.31^**	−0.85 ± 0.14^**	−0.51 ± 0.06^**	−0.56 ± 0.04^**	−0.35 ± 0.02	−0.21 ± 0.02^**
LCR	Before CR	238.09 ± 3.02^*	26.26 ± 2.56^*	177.18 ± 2.90^*	4.11 ± 0.09^*	1.56 ± 0.04^*	0.60 ± 0.03^*	1.58 ± 0.03^*	1.11 ± 0.02	0.46 ± 0.01^*
	After CR	187.27 ± 3.50^*	6.53 ± 1.19	150.67 ± 2.89^*	3.18 ± 0.17^*	1.25 ± 0.08^*	0.40 ± 0.03^*	1.12 ± 0.03^*	0.78 ± 0.03	0.35 ± 0.01 (p = 0.068)
	Change	−50.82 ± 1.97	−19.74 ± 1.60	−26.51 ± 3.06	−0.92 ± 0.19^*	−0.30 ± 0.07^*	−0.19 ± 0.05^*	−0.45 ± 0.04^*	−0.34 ± 0.03	−0.11 ± 0.02^*

^†

Main effect of calorie restriction.

^‡

Main effect of line (HCR ≠ LCR).

^**

Significant interaction (different response to CR in HCR vs LCR).

HCR ≠ LCR at the given time point (p<0.05 for all comparisons). HCR, n = 11; LCR, n = 13.