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. 2020 Aug 1;17:59. doi: 10.1186/s12986-020-00480-w

Fig. 1.

Fig. 1

Effects of resistance training on serum 25(OH) D concentrations. The analysis was adjusted according to age, MVPA, and changes in sun exposure and body fat percentage (End-Pre). 25(OH) D, 25-hydroxyvitamin D; RT, resistance training; CON, non-exercise control; MVPA, moderate to vigorous physical activity. *, compared with pre, P < 0.05; †, compared with mid, P < 0.05