Study under review: The Effect of Whey Protein Supplementation on the Temporal Recovery of Muscle Function Following Resistance Training: A Systematic Review and Meta-Analysis
A decrease in muscle function normally occurs in the hours and days after strength training, as depicted in Figure 1. This persistent muscle fatigue can compromise subsequent athletic performance. Similarly, if the fatigue extends to the next training bout, the intensity and volume of the training can be negatively impacted, which may lead to diminished long-term strength and lean muscle gains.
Specific amino acids and protein are often used in an attempt to facilitate post-training improvements in muscle growth and strength. Mechanistically, these supplements are known to increase muscle protein synthesis, which may help to facilitate recovery and adaptation during the post-workout period. In particular, whey protein is considered to be a superior source of protein, partly because of its amino acid profile and how rapidly it is digested and absorbed. If whey protein supplementation could mitigate post-resistance exercise fatigue, it could prove useful for athletes and individuals who train frequently.
In spite of the ubiquity of whey protein supplements, there had been no meta-analyses examining its effect on the restoration of muscle function, which was the motivation for the study under review.
Muscle strength is naturally reduced after resistance training, and protein supplements are often used to facilitate recovery and adaptation. Whey is a common high-quality protein source. This is the first meta-analysis examining its effects on post-workout fatigue.
Other Articles in Issue #43 (May 2018)
Eggcellent eggs part II: can people with diabetes safely eat two eggs per day?
This long-term follow-up to a study we covered way back in NERD #7 examined the effects of eggs on people with diabetes and prediabetes.
Whose performance benefits from nitrate supplementation?
The literature examining nitrates’ effects on performance is mixed. Part of the reason for the discrepancy may come down to training status
The misunderstood noodle
Does pasta pack on the pounds? This meta-analysis aimed to find out.
Interview: Andrew Vigotsky
In this interview with biomedical engineering PhD candidate Andrew Vigotsky, we talk biomechanics and the state of sports science research.
Does caloric restriction really make you live longer?
Two major hypothetical mechanisms of aging were put to the test in this human trial, the latest from the CALERIE project.
Interview: Lara Hyde, PhD
We chat with the creator and host of Nourishable about nutritional epigenomics and epigenetics, as well as the nuances of communicating science to the public.
Do vegetarians lack CCC insurance? A look into creatine, carnitine, and carnosine in vegetarian diets
These three molecules play an important role in sports performance. This trial is the longest interventional study to date looking at how switching to a lacto-ovo-vegetarian diet impacts them.