Table 2.  Citrate synthase activity and histological properties of the plantaris muscle. Values are means (±SD).
   

Control group
(n = 5)

Training group
(n = 12)

Citrate synthase activity (µmol·min-1·mg protein-1 )

.25 (.01)

.30  (.03) *

Mean fiber area (µm2)

7063 (419)

7195  (969)

Number of myonuclei per muscle fiber

2.03 (.14)

2.48 (.40) *

Myonuclear domain (µm2)

3489 (350)

2983 (389) *

Number of satellite cells per muscle fiber

.021 (.004)

.032 (.007) *

Percentage of satellite cells (%)

1.03 (.17)

1.27 (.15) *
*Significantly different from control group, P < 0.05. The percentage of satellite cells (%) = [number of satellite cells/(total number of myonuclei and satellite cells)] × 100.