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Table 6 Mean (± standard deviation) physical performance scores assessed at home (H) and in the research center (RC), and physical activity (PA) assessed by questionnaire (Q) and trunk- and thigh-based accelerometers (acc.), specified by age cohort and sex

From: Assessing physical performance and physical activity in large population-based aging studies: home-based assessments or visits to the research center?

  75-yr-old 80-yr-old 85-yr-old   Men Women  
  N M±SD N M±SD N M±SD P N M±SD N M±SD P
Walking speed (m/s)             
 H 452 1.0±0.3 328 0.9±0.3 215 0.8±0.3 <.001 423 1.0±0.3 572 0.9±0.3 .001
 RC 431 1.3±0.2 290 1.2±0.2 177 1.1±0.2 <.001 388 1.3±0.3 510 1.2±0.2 .029
Handgrip strength (N)             
 H 451 328.0±103.7 325 304.8±103.9 217 260.2±84.4 <.001 419 388.0±87.7 574 245.5±65.2 <.001
 RC 430 308.6±103.8 289 282.8±95.2 182 246.9±84.1 <.001 387 374.1±81.8 514 222.9±51.8 <.001
PA of at least moderate intensity (min/day) Q 448 43.8±28.1 325 41.1±26.8 218 33.9±25.8 <.001 421 43.3±28.5 570 38.9±26.5 .013
 Trunk acc 228 32.1±24.0 137 27.9±22.9 76 18.6±20.3 <.001 177 29.5±24.0 264 27.8±23.2 .441
Total upright posture (min/day) Q 447 351.6±144.2 324 357.7±156.5 217 323.0±153.1 .004 419 334.3±154.4 569 356.9±147.3 .003
 Thigh acc 245 326.9±103.7 155 350.4±101.5 85 323.3±101.6 .025 196 320.5±104.2 289 342.8±101.4 .012
  1. Difference tested between age cohorts with ANOVA or Kruskal-Wallis tests and between sexes with independent T-tests or Mann-Whitney U tests