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Table 2 Results of included studies

From: Level of daily physical activity in individuals with COPD compared with healthy controls

Reference Duration of DPA Intensity of DPA Counts of DPA
  P C P/C × 100% P C P/C × 100% P C P/C × 100%
Coronado (2003) 17% of recording time active 33% 52%       
Hernandes (2009) 55 ± 33 min/day walking 80 ± 28 69% 1.9 ± 0.4 m/s2 2.3 ± 0.6 83%    
Lores (2006)        184 ± 99 counts/3 days 314 ± 75 59%
Pitta (2005) 44 ± 26 min/day walking 81 ± 26 54% 1.8 ± 0.3 m/s2 2.4 ± 0.5 75%    
Schönhofer (1997)        3781 ± 2320 movements/day 8590 ± 4060 44%
Singh (2001) 136.1 min/2 days walking 386.2 35%     14.838 ± 7115 counts/2 days 24.028 ± 12399 62%
Troosters (2010) 106 min/day active 232 46%     5584 ± 3360 steps/day 9372 ± 3574 60%
Walker (2008) 50.8% ± 15.4% of recording time mobile 61.4% ± 11.2% 83% 156 ± 63 × 103 counts/h 232 ± 90 67% 82 ± 49 × 103 counts/h 143 ± 61 57%
Average    57%    75%    56%
  1. DPA = daily physical activity, P = patients, C = controls, P/C × 100% = percentage DPA patients perform in comparison to healthy controls, value after ± is the standard deviation.