Postexercise dietary protein strategies to maximize skeletal muscle repair and remodeling in masters endurance athletes: A review

Thomas Doering, Peter R. Reaburn, Stuart M. Phillips, David G. Jenkins

Research output: Contribution to journalReview articleResearchpeer-review

14 Citations (Scopus)

Abstract

Participation rates of masters athletes in endurance events such as long-distance triathlon and running continue to increase. Given the physical and metabolic demands of endurance training, recovery practices influence the quality of successive training sessions and, consequently, adaptations to training. Research has suggested that, after muscle-damaging endurance exercise, masters athletes experience slower recovery rates in comparison with younger, similarly trained athletes. Given that these discrepancies in recovery rates are not observed after non-muscle-damaging exercise, it is suggested that masters athletes have impairments of the protein remodeling mechanisms within skeletal muscle. The importance of postexercise protein feeding for endurance athletes is increasingly being acknowledged, and its role in creating a positive net muscle protein balance postexercise is well known. The potential benefits of postexercise protein feeding include elevating muscle protein synthesis and satellite cell activity for muscle repair and remodeling, as well as facilitating muscle glycogen resynthesis. Despite extensive investigation into age-related anabolic resistance in sedentary aging populations, little is known about how anabolic resistance affects postexercise muscle protein synthesis and thus muscle remodeling in aging athletes. Despite evidence suggesting that physical training can attenuate but not eliminate age-related anabolic resistance, masters athletes are currently recommended to consume the same postexercise dietary protein dose (approximately 20 g or 0.25 g/kg/meal) as younger athletes. Given the slower recovery rates of masters athletes after muscle-damaging exercise, which may be due to impaired muscle remodeling mechanisms, masters athletes may benefit from higher doses of postexercise dietary protein, with particular attention directed to the leucine content of the postexercise bolus.

Original languageEnglish
Pages (from-to)168-178
Number of pages11
JournalInternational Journal of Sport Nutrition and Exercise Metabolism
Volume26
Issue number2
DOIs
Publication statusPublished - 1 Apr 2016
Externally publishedYes

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Dietary Proteins
athletes
Athletes
dietary protein
skeletal muscle
Skeletal Muscle
muscles
Muscle Proteins
muscle protein
Muscles
exercise
Exercise
protein synthesis
Proteins
proteins
dosage
Glycogen
Leucine
Running
Muscle Cells

Cite this

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Postexercise dietary protein strategies to maximize skeletal muscle repair and remodeling in masters endurance athletes: A review. / Doering, Thomas; Reaburn, Peter R.; Phillips, Stuart M.; Jenkins, David G.

In: International Journal of Sport Nutrition and Exercise Metabolism, Vol. 26, No. 2, 01.04.2016, p. 168-178.

Research output: Contribution to journalReview articleResearchpeer-review

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