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Fig. 4 | Nutrition & Metabolism

Fig. 4

From: Does vitamin-D intake during resistance training improve the skeletal muscle hypertrophic and strength response in young and elderly men? – a randomized controlled trial

Fig. 4

CSA, Isometric strength and strength/CSA of Quadriceps muscle. Change in a CSA, b isometric strength and c strength/CSA of quadriceps muscle for young and elderly vitamin-D and placebo groups, respectively. Data shown as mean percentage change from week 0 ± SEM. * different from week 0 (p < 0.05)

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