Table 1

Physical characteristics of subjects.

Variables

Males (n = 8)

Females (n = 8)

p value


Age (yrs)

24.7 ± 0.8

22.7 ± 0.8

ns

Weight (kg)

76.9 ± 5.2

60.0 ± 5.2

0.02

Height (cm)

177.8 ± 3.3

156.2 ± 3.3

< 0.0001

BMI (kg/m2)

24.2 ± 1.7

23.7 ± 1.7

ns

1RM Trained Arm (kg)

16.7 ± 0.8

10.4 ± 0.8

< 0.0001

1RM Control Arm (kg)

12.6 ± 0.5

6.5 ± 0.5

< 0.0001

ISO Trained Arm (kg)

61.5 ± 3.4

29.2 ± 3.4

< 0.0001

ISO Control Arm (kg)

55.4 ± 2.9

25.3 ± 2.9

< 0.0001

CSA Trained Arm (cm2)

6949.3 ± 595.2

5837.1 ± 595.2

ns

CSA Control Arm (cm2)

6314.8 ± 553.3

5544 ± 553.3

ns

VOL Trained Arm (cm3)

642757.5 ± 53086.4

541118.8 ± 53086.4

ns

VOL Control Arm (cm3)

584923.6 ± 50638.3

516896.5 ± 50638.3

ns

Δ1RM relative to control

0.42 (0.29)

0.55 (0.50)

0.03

Δ ISO relative to control

0.10 (0.20)

0.13 (0.07)

ns

Δ CSA relative to control

0.08 (0.05)

0.05 (0.12)

0.08

Δ VOL relative to control

0.10 (0.09)

0.07 (0.10)

ns


Note: Anthropometric and muscle phenotypic measurements are presented as mean ± SEM and sex differences were tested by t-test.

Δ relative to control, relative improvement induced by RE training, calculated as (trained-control)/control; the numbers are median (interquartile range) and sex differences were tested by Wilcoxon Rank Sum Test.

1RM: 1 repetition maximum; ISO: Isometric muscle strength; CSA: Arm whole muscle cross-sectional area measured by MRI; VOL: Arm whole muscle volume.

Liu et al. BMC Genomics 2010 11:659   doi:10.1186/1471-2164-11-659

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