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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