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Table 1 Comparing HRQOL (mean ± SD) before and after the 12-week strength training program N = 49

From: Changes in health-related quality of life in elderly men after 12 weeks of strength training

SF-12 HRQOL

Mean (±SD) before

Mean (±SD) after

Effect size

Physical function

93.4 (16.0)

96.4 (10.2)

0.21

Role physical

92.9 (14.2)

96.7 (9.7)a

0.32

Bodily pain

89.9 (16.1)

93.4 (13.3)

0.23

General health

72.0 (17.2)

79.7 (15.6)b

0.54

Vitality

70.9 (21.3)

74.0 (19.7)

0.20

Social function

93.9 (14.0)

94.9 (16.1)

0.12

Role emotional

95.8 (11.2)

97.4 (8.1)

0.10

Mental health

88.8 (12.8)

89.5 (14.3)

0.13

Physical Component Summary

53.3 (5.0)

55.0 (3.3)b

0.32

Mental Component Summary

56.0 (5.3)

56.4 (5.2)

0.24

  1. SF-12 range 0-100, where 100 = high HRQOL
  2. Paired-sample t-test
  3. a, bIndicate significant changes between baseline and 12-week follow-up; asignificant at 0.05 level, bsignificant at 0.01 level