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Post-exercise provision of 40 g of protein during whole body resistance training further augments strength adaptations in elderly males

ABSTRACT Background: In the elderly, low protein intake exacerbates the effects of sarcopenia and anabolic resistance. Protein supplementation to maximise muscle protein synthesis, may be an effective intervention. Aim: To determine the effects of a low/high dose of protein, ingested immediately post-exercise, during resistance training in novice elderly males. Method: 24 elderly (70.5±5.1, years) males were recruited (body mass: 92.4±14.9 kg; fat free mass: 61.4±7.6 kg). After exclusion criteria, 18 males participated. Participants continued their normal dietary intake and were allocated into two matched groups, then randomly assigned to either a 20 g or 40 g dose intervention. Following determination of 1 repetition maximum (1RM), participants completed 10 x 3d-1 wk resistance training and consumed protein supplements immediately following exercise. Results: Significant improvements in chest press (p = 0.014, ɳp2 0.34) shoulder press (p = 0.005, ɳp2 0.43) and leg extension strength (p = 0.014, ɳp2 0.34), were observed following the 40 g dose, resulting in performance improvements of 19.1, 21.1, and 16.1% respectively, compared to the 20 g dose. Conclusion:Findings suggest that ingesting 40 g of protein following resistance exercise, produces greater responses to training and may be an important nutritional strategy when prescribing resistance exercise in the elderly.