Summary: Sample size calculations demonstrate that N=8 subjects per group (N=24 total) will provide sufficient power to assess each of our specific aims, across two main outcomes for assessing lean body mass and functional assessment. The investigators also show that they can study FSR with this design. As in all human intervention studies, the investigators expect attrition. To account for an expected attrition rate of 20% the investigators will randomize 1.2x8=10 subjects per group (N=30 total). The investigators will screen 48 people to achieve a total of 24 completed studies.