Table 1.

Young and old (pretraining) subject characteristics

	Young	Old
Age, yr	24 ± 2	71 ± 6*
Height, cm	178 ± 3	173 ± 2
Weight, kg	78 ± 3	79 ± 4
Body mass index, kg/m2	24 ± 1	27 ± 1*
Forearm muscle mass, kg	0.98 ± 0.04	0.84 ± 0.08
Quadriceps muscle mass, kg	2.1 ± 0.08	1.6 ± 0.04*
Systolic blood pressure (supine), mmHg	120 ± 4	129 ± 3*
Diastolic blood pressure (supine), mmHg	72 ± 3	82 ± 4*
Heart rate, beats/min	62 ± 8	70 ± 3*
Maximum handgrip, kg	53 ± 3	28 ± 2*
Maximum knee extensor, W	62 ± 3	31 ± 7*
Maximum O2 consumption (cycle), ml·kg−1·min−1	38 ± 2	24 ± 3*

Values are means ± SE.

^*P < 0.05, young vs. old subjects.