. Author manuscript; available in PMC: 2020 Nov 1.

Published in final edited form as: Exp Gerontol. 2019 Sep 10;127:110723. doi: 10.1016/j.exger.2019.110723

Table 3.

Muscle hypertrophy indices Pre- and Post-Intervention, grouped by basal CFPE index.

	LOW (N=9, 4 male, 5 female)		HIGH (N=10, 6 male, 4 female)
Hypertrophy indices	Pre-RET	Post-RET	Pre-RET	Post-RET
ASM (kg)	20.2±2.3	20.6±2.4	22.7±2.7	23.3±2.3^*
SMI (kg/m²)	7.2±0.7	7.3±0.7	7.6±0.9	7.8±0.7^*
Leg Lean Mass (kg)	15.4±1.7	15.5±1.7	16.9±2.0	17.4±1.6^*
Fiber type II CSA (um²)	3135.7±407.4	3496.5±519.5	3081.2±509.8	4131.4±557.1^*
FSR (%/h)	0.06±0.01	0.07±0.01	0.06±0.01	0.09±0.01^*
Protein breakdown indices
MuRF-1 (AU)	0.28±0.13	0.29±0.08	0.38±0.10	0.19±0.04
Atrogin-1 (AU)	1.38±0.40	1.10±0.27	0.91±0.34	0.68±0.22

Note: Values are means ± SE. CFPE, capillary-to-fiber perimeter exchange; HIGH, relative high baseline CFPE index; ASM, appendicular skeletal muscle; SMI, skeletal muscle index (ASM/height²); CSA, cross sectional area; FSR, fractional synthetic rate; MuRF-1, Muscle RING- finger protein-1; AU, arbitrary unit. N=9; LOW, relative low baseline CFPE index; N=10.

significantly different from pre-RET (p<0.05).

significantly different compared to LOW group (p<0.05).