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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