In a randomized , parallel-design , controlled trial of @ men and @ women , volunteers were assigned diets providing protein at @ -LSB- Recommended Dietary Allowance ( RDA ) -RSB- , @ ( @ RDA ) , or @ ( @ RDA ) g kg ( -@ ) d ( -@ ) for @ d. Ten days of WM preceded @ d of ED , during which total daily ED was @ % , achieved by reduced dietary energy intake ( @ % ) and increased physical activity ( @ % ) .