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Supplementation with Whey Protein, but Not Pea Protein, Reduces Muscle Damage Following Long-Distance Walking in Older Adults

Authors :
Marcia Spoelder
Lotte Koopmans
Yvonne A. W. Hartman
Coen C. W. G. Bongers
Merle C. A. Schoofs
Thijs M. H. Eijsvogels
Maria T. E. Hopman
Source :
Nutrients, 15, Nutrients, 15, 2, Nutrients; Volume 15; Issue 2; Pages: 342
Publication Year :
2023
Publisher :
MDPI AG, 2023.

Abstract

Background: Adequate animal-based protein intake can attenuate exercise induced-muscle damage (EIMD) in young adults. We examined the effects of 13 days plant-based (pea) protein supplementation compared to whey protein and placebo on EIMD in active older adults. Methods: 47 Physically active older adults (60+ years) were randomly allocated to the following groups: (I) whey protein (25 g/day), (II) pea protein (25 g/day) or (III) iso-caloric placebo. Blood concentrations of creatine kinase (CK) and lactate dehydrogenase (LDH), and skeletal muscle mass, muscle strength and muscle soreness were measured prior to and 24 h, 48 h and 72 h after a long-distance walking bout (20–30 km). Results: Participants walked 20–30 km and 2 dropped out, leaving n = 15 per subgroup. The whey group showed a significant attenuation of the increase in EIMD at 24 h post-exercise compared to the pea and placebo group (CK concentration: 175 ± 90 versus 300 ± 309 versus 330 ± 165, p = p < 0.001). No differences in LDH levels, muscle strength, skeletal muscle mass and muscle soreness were observed across groups (all p-values > 0.05). Conclusions: Thirteen days of pea protein supplementation (25 g/day) does not attenuate EIMD in older adults following a single bout of prolonged walking exercise, whereas the whey protein supplementation group showed significantly lower post-exercise CK concentrations.

Details

ISSN :
20726643
Volume :
15
Database :
OpenAIRE
Journal :
Nutrients
Accession number :
edsair.doi.dedup.....f772000ff415c6444a337d8f86ea37dd
Full Text :
https://doi.org/10.3390/nu15020342