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Table 3 Correlations between changes in indicators of body composition and changes in serum 25(OH) D concentrations

From: Effects of resistance training on serum 25(OH) D concentrations in young men: a randomized controlled trial

Variables 25(OH)Dmid-pre 25(OH)Dend-pre
r P r P
Body fat percentage
 mid-pre 0.014 0.956 0.101 0.690
 end-mid −0.217 0.387 −0.004 0.986
 end-pre −0.090 0.722 0.064 0.800
FFM
 mid-pre −0.455 0.058 −0.565 0.015
 end-mid 0.121 0.632 0.037 0.883
 end-pre −0.289 0.244 −0.424 0.080
Muscle mass
 mid-pre −0.456 0.057 −0.554 0.017
 end-mid 0.142 0.575 0.037 0.884
 end-pre −0.280 0.261 −0.415 0.087
  1. 25(OH) D 25-hydroxyvitamin D, FFM fat-free mass