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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