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Table 2 Descriptive data on the measured variables

From: Sex difference in age-related changes in knee extensor strength and power production during a 10-times-repeated sit-to-stand task in Japanese elderly

  Two-way ANOVA
Variables Sex YOG OOG Age Sex Age × sex
KE-F, N M 307.7 ± 80.0ab 263.9 ± 88.2b p < 0.0001 p < 0.0001 p = 0.521
  W 241.1 ± 65.9a 205.4 ± 67.7    
KE-F/BM, N/kg M 4.937 ± 1.247ac 4.435 ± 1.392c p < 0.0001 p < 0.001 p = 0.842
  W 4.547 ± 1.233a 4.088 ± 1.298    
STS time, s M 12.84 ± 3.15d 15.37 ± 5.15e p < 0.0001 p < 0.0001 p < 0.0001
  W 13.39 ± 3.71d 19.60 ± 6.90    
STS-PI M 63.5 ± 16.2ab 51.9 ± 17.5b p < 0.0001 p < 0.0001 p = 0.074
  W 48.0 ± 13.6a 31.7 ± 13.1    
STS-VI M 1.02 ± 0.23de 0.87 ± 0.27e p < 0.0001 p < 0.0001 p < 0.01
  W 0.90 ± 0.24d 0.62 ± 0.23    
  1. Values are means ± SDs
  2. M men, W women, YOG younger-old group, OOG older-old group, KE-F knee extension force, KE-F/BM KE-F relative to body mass, STS time time taken for a 10-times-repeated STS task, STS-PI power index calculated by using an equation with body height, body mass, and STS time as variables, STS-VI velocity index calculated using an equation with body height and STS time as variables
  3. aSignificantly different from OOG at p < 0.0001 as a result of Scheffe test
  4. bSignificantly different from women at p < 0.0001 as a result of Scheffe test
  5. cSignificantly different from women at p < 0.001 as a result of Scheffe test
  6. dSignificantly different from OOG at p < 0.0001 as a result of unpaired t-test within the same sex
  7. eSignificantly different from women at p < 0.0001 as a result of unpaired t-test within the same age group