Skip to main content

Table 5 Correlations between the fitness trackers and accelerometer for the 14-day free living data

From: Reliability and validity of two fitness tracker devices in the laboratory and home environment for older community-dwelling people

Fitness tracker & accelerometer variables

n

Spearman Rho (range)a

% of correlations ≤ 0.05

Physical activity minutes & Moderate-to-vigorous physical activity

28 (14 Flex, 14 ChargeHR)

0.48 (− 0.49, 0.89)

46.4

Steps & Moderate-to-vigorous physical activity

29 (14 Flex, 15 ChargeHR)

0.70 (− 0.10, 0.96)

75.9

Total distance & Moderate-to-vigorous physical activity

29 (14 Flex, 15 ChargeHR)

0.72 (0.01, 0.96)

79.3

Physical activity minutes & total Physical activity

28 (14 Flex, 14 ChargeHR)

0.14 (−0.31, 0.60)

3.6

Steps & total Physical activity

29 (14 Flex, 15 ChargeHR)

0.54 (−0.12, 0.90)

58.6

Total distance & total Physical activity

29 (14 Flex, 15 ChargeHR)

0.53 (−0.13, 0.90)

58.6

Sleep (fitness tracker) & Sleep (Geneactiv accelerometer)

24 (10 Flex, 14 ChargeHR)

0.37 (−0.21, 1.00)

25.0

  1. Note. Fitness tracker device variable named first, accelerometer variable second. aMean and range of up to 29 participant correlations