Energy expenditure and substrate utilization in older women after strength training: 24-h calorimeter results.

摘要: The purpose of this study was to examine the effects strength training (ST) in healthy older women on 24-h energy expenditure (EE) and its components substrate utilization. Thirteen (age 67 +/- 1 yr) exercised three times per week for 16 wk a total body ST program. EE utilization were determined 24 h an indirect room calorimeter before after training. invoked 47% increase upper 66% lower (P < 0.001). Body weight, percent fat, fat-free mass did not change significantly; however, midthigh muscle area increased (55.2 3.1 vs. 60.4 2.3 cm2; P 0.05). There are significant resting (5,017 218 5,473 213 kJ/day; 0.05) but no changes sleeping (4,929 180 5,067 251 kJ/day), diet-induced thermogenesis (359 25 393 33 activity (682 84 381 117 or (6,054 188 6,247 243 kJ/day). is taken into account. nonprotein respiratory quotient decreased (0.90 0.01 0.82 0.01; 0.001), revealing fat oxidation (42 6 81 7 g/day) decrease carbohydrate (180 14 113 10 g/day; both 0.001).(ABSTRACT TRUNCATED AT 250 WORDS)