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Table 4 Changes in exercise performance in both groups after rehabilitation

From: Vitamin D supplementation during rehabilitation in COPD: a secondary analysis of a randomized trial

  Placebo Vit D P-value
(n=25) (n=24)
Δ Exercise Performance    
6MWD (meter) 11±74 40±55 0.130
VO2max (ml/min) −20±187 110±211 0.029
Wmax (watt) 3±13 10±13 0.053
  1. Data are expressed as mean±SD. 6MWD = Six Minutes Walking Distance; VO 2max = Maximal Oxygen Uptake; W max = Maximal Workload.