Protein is the hottest ingredient/food trend to hit since low-fat. Boosting protein in everything from cereal to sports drink has gotten a protein boost. Among its many benefits, research points to a link between protein supplementation, in combination with resistance training, and increased muscle mass and muscle strength.
Bases on this link, German researchers assessed the influence of post-exercise protein supplementation with collagen peptides versus placebo on muscle mass and muscle function following resistance training in elderly subjects with sarcopenialoss of muscle tissue due to again (Brit J Nutr. 2015;114(08):127-45).
A total of 53 male subjects with sarcopenia (class I or II) completed this randomized, double blind placebo-controlled study. All the participants underwent a 12-week guided resistance training program (three sessions per week) and were supplemented with either 15 g/d of collagen peptides or silica as placebo.
Following the training program, all the subjects showed significantly higher levels for fat-free mass, bone mass, isokinetic quadriceps strength and sensory motor control with significantly lower levels for fat mass; the effect was significantly more pronounced in subjects receiving collagen peptides: fat-free mask. Our data demonstrate that compared with placebo, collagen peptide supplementation in combination with resistance training further improved body composition by increasing fat-free mass, muscle strength and the loss in fat mass.
These results are further encouragement for food and beverage manufacturers in the sports nutrition arena to fortify their products with protein.