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Table 2 Reported accelerometer-derived physical activity levels in myositis cohorts

From: A review of accelerometer-derived physical activity in the idiopathic inflammatory myopathies

Authors

 

Counts per minute

Mean no. steps in 48 h

Sedentary % of day

Light % of day

Moderate % of day

Vigorous % of day

MVPA % of day

Riisager et al. [25]

Pre-training

N = 21

 

16,412

     

Post-training

 

21,079

     

Habers et al. [26] a

Pre-training

N = 26

  

83.0

14.0

2.8

0.1

2.9

Post-training

  

80.0

15.0

4.6

0.1

4.7

Stephens et al. [21] b

N = 15

  

37.7

12.3

1.4

0.6

2.2

Pinto et al. [23] b

JDM cohort

N = 19

  

69.4

28.0

  

3.7 c

Control cohort

N = 19

  

66.1

29.3

  

4.6 c

Berntsen et al. [27] b

“Active” disease

N = 16

351 d

 

38.0

11.9

  

3.5 e

“Inactive” disease

N = 29

321 d

 

40.6

11.8

  

3.0 e

Control group

N = 45

423 d

 

39.4

11.3

  

4.2 e

Mathiesen et al. [22] b

< 18 years of age

N = 19

513

      

> = 18 years of age

N = 12

322

      
  1. aAccelerometer device was worn throughout 24 h periods for 7 days
  2. bAccelerometer data from non-sleeping hours was analysed
  3. cP-value > 0.05 derived from Mann-Whitney U-test
  4. dP-value < 0.01 derived from Wilcoxon signed rank test
  5. eP-value < 0.01 derived from t-test
  6. JDM Juvenile dermatomyositis, MVPA Moderate to vigorous physical activity