Free living energy expenditure in post menopausal women before and after exercise training

The aim of the study was to determine the effects of 8 weeks of moderate ex ercise training, on 24-hour free living energy expenditure in previously se dentary post-menopausal women. The experimental group (EX) included 9 women . Ten non-exercising control subjects (CON) were recruited to undergo pre- and post-testing, Estimated total daily energy expenditure (TDEE), total 24 -hour heart beats (HB), total energy intake (TEI), resting metabolic rate, maximal oxygen consumption ((V) over dotO(2max)) body composition, and subm aximal heart rate were measured before and after the exercise intervention. Body composition did not change (body fat % in CON 34.0 +/- 4.0% vs. 33.9 +/- 3.6% and EX 34.1 +/- 4.0% vs. 34.0 +/- 3.4%). Mean submaximal heart rat e during steady-state exercise in EX was lower after training compared to C ON (p < .05); however, (V) over dotO(2max) did not increase significantly ( CON 1.96 +/- 0.23 vs. 1.99 +/- 0.241L O-2/1 min and EX 1.86 +/- 0.39 vs. 1. 94 +/- 0.30 L O-2/min). Neither estimated TDEE (CON, 11.6 +/- 2.0 vs. 11.4 +/- 2.78 MJ; and EX 11.4 +/- 3.3 vs. 11.5 +/- 2.5 MJ, pre vs. post, respect ively), RMR (CON 134.2 +/- 9.4 vs. 136.9 +/- 15.0 KJ/kgFFM/day, and EX 138. 4 +/- 6.4 vs. 140.7 +/- 14.2 KJ/kgFFM/day, pre vs, post, respectively), TEI (CON 7.9 +/- 2.2 vs. 8.2 +/- 2.5 MJ, and EX 9.4 +/- 1.6 vs. 8.3 +/- 2.8 MJ) , nor HB (CON 110,808 +/- 12,574 vs. 107,366 +/- 12,864 beats, and EX 110,1 88 +/- 9,219 vs. 114,590 +/- 12,750 beats) change over 8 weeks in either gr oup. These data suggest that a moderate exercise program may not impact on TDEE, RMR, TEI, or HE in previously sedentary, older women.