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Table 4 Muscle strength – changes in outcome measures between groups: baseline values vs. scores after 7 weeks – Multiple Range Test.

From: Combined effects of functionally-oriented exercise regimens and nutritional supplementation on both the institutionalised and free-living frail elderly (double-blind, randomised clinical trial)

Contrast Difference
  Right leg Left leg
  Knee flexion Knee extension Hip flexion Hip extension Knee flexion Knee extension Hip flexion Hip extension
Group I vs. Group II 0.09 -0.61 -0.28 0.55 0.44 0.38 -0.45 0.40
Group I vs. Group III 0.84* 0.66 1.69 1.14* 1.40* 1.48* 0.28 2.29*
Group I vs. Group IV 1.43* 0.98 1.06 1.98* 1.92* 1.56* 1.38 2.70*
Group II vs. Group III 0.74* 0.14 1.97 1.69* 0.95 2.14* 0.72 1.43*
Group II vs. Group IV 1.33* 3.84* 2.35* 2.38* 0.57 2.49* 1.83 1.86*
Group III vs. Group IV 0.05 0.32 0.37 0.68 -0.37 0.46 1.09 -0.86
  1. * denotes a statistically significant difference.