Effects of Peanut Protein Supplementation on Resistance Training Adaptations in Younger Adults

Protein supplementation is a commonly employed strategy to enhance resistance training adaptations. However, little research to date has examined if peanut protein supplementation is effective in this regard. Thus, we sought to determine if peanut protein supplementation (PP; 75 total g/d of powder...

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Autores principales:	Casey L. Sexton, Morgan A. Smith, Kristen S. Smith, Shelby C. Osburn, Joshua S. Godwin, Bradley A. Ruple, Alex M. Hendricks, Christopher B. Mobley, Michael D. Goodlett, Andrew D. Frugé, Kaelin C. Young, Michael D. Roberts
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	resistance training females peanut protein muscle protein synthesis Nutrition. Foods and food supply TX341-641
Acceso en línea:	https://doaj.org/article/60b3b38904304423afa6f47d43f47b1e
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spelling	oai:doaj.org-article:60b3b38904304423afa6f47d43f47b1e2021-11-25T18:35:47ZEffects of Peanut Protein Supplementation on Resistance Training Adaptations in Younger Adults10.3390/nu131139812072-6643https://doaj.org/article/60b3b38904304423afa6f47d43f47b1e2021-11-01T00:00:00Zhttps://www.mdpi.com/2072-6643/13/11/3981https://doaj.org/toc/2072-6643Protein supplementation is a commonly employed strategy to enhance resistance training adaptations. However, little research to date has examined if peanut protein supplementation is effective in this regard. Thus, we sought to determine if peanut protein supplementation (PP; 75 total g/d of powder providing 30 g/d protein, >9.2 g/d essential amino acids, ~315 kcal/d) affected resistance training adaptations in college-aged adults. Forty-seven college-aged adults (<i>n</i> = 34 females, <i>n</i> = 13 males) with minimal prior training experience were randomly assigned to a PP group (<i>n</i> = 18 females, <i>n</i> = 5 males) or a non-supplement group (CTL; <i>n</i> = 16 females, <i>n</i> = 8 males) (ClinicalTrials.gov trial registration NCT04707963; registered 13 January 2021). Body composition and strength variables were obtained prior to the intervention (PRE). Participants then completed 10 weeks of full-body resistance training (twice weekly) and PP participants consumed their supplement daily. POST measures were obtained 72 h following the last training bout and were identical to PRE testing measures. Muscle biopsies were also obtained at PRE, 24 h following the first exercise bout, and at POST. The first two biopsy time points were used to determine myofibrillar protein synthesis (MyoPS) rates in response to a naïve training bout with or without PP, and the PRE and POST biopsies were used to determine muscle fiber adaptations in females only. Dependent variables were analyzed in males and females separately using two-way (supplement × time) repeated measures ANOVAs, unless otherwise stated. The 24-h integrated MyoPS response to the first naïve training bout was similar between PP and CTL participants (dependent samples <i>t</i>-test <i>p</i> = 0.759 for females, <i>p</i> = 0.912 for males). For males, the only significant supplement × time interactions were for DXA-derived fat mass (interaction <i>p</i> = 0.034) and knee extensor peak torque (interaction <i>p</i> = 0.010); these variables significantly increased in the CTL group (<i>p</i> < 0.05), but not the PP group. For females, no significant supplement × time interactions existed, although interactions for whole body lean tissue mass (<i>p</i> = 0.088) and vastus lateralis thickness (<i>p</i> = 0.099) approached significance and magnitude increases in these characteristics favored the PP versus CTL group. In summary, this is the second study to determine the effects of PP supplementation on resistance training adaptations. While PP supplementation did not significantly enhance training adaptations, the aforementioned trends in females, the limited n-size in males, and this being the second PP supplementation study warrant more research to determine if different PP dosing strategies are more effective than the current approach.Casey L. SextonMorgan A. SmithKristen S. SmithShelby C. OsburnJoshua S. GodwinBradley A. RupleAlex M. HendricksChristopher B. MobleyMichael D. GoodlettAndrew D. FrugéKaelin C. YoungMichael D. RobertsMDPI AGarticleresistance trainingfemalespeanut proteinmuscleprotein synthesisNutrition. Foods and food supplyTX341-641ENNutrients, Vol 13, Iss 3981, p 3981 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	resistance training females peanut protein muscle protein synthesis Nutrition. Foods and food supply TX341-641
spellingShingle	resistance training females peanut protein muscle protein synthesis Nutrition. Foods and food supply TX341-641 Casey L. Sexton Morgan A. Smith Kristen S. Smith Shelby C. Osburn Joshua S. Godwin Bradley A. Ruple Alex M. Hendricks Christopher B. Mobley Michael D. Goodlett Andrew D. Frugé Kaelin C. Young Michael D. Roberts Effects of Peanut Protein Supplementation on Resistance Training Adaptations in Younger Adults
description	Protein supplementation is a commonly employed strategy to enhance resistance training adaptations. However, little research to date has examined if peanut protein supplementation is effective in this regard. Thus, we sought to determine if peanut protein supplementation (PP; 75 total g/d of powder providing 30 g/d protein, >9.2 g/d essential amino acids, ~315 kcal/d) affected resistance training adaptations in college-aged adults. Forty-seven college-aged adults (<i>n</i> = 34 females, <i>n</i> = 13 males) with minimal prior training experience were randomly assigned to a PP group (<i>n</i> = 18 females, <i>n</i> = 5 males) or a non-supplement group (CTL; <i>n</i> = 16 females, <i>n</i> = 8 males) (ClinicalTrials.gov trial registration NCT04707963; registered 13 January 2021). Body composition and strength variables were obtained prior to the intervention (PRE). Participants then completed 10 weeks of full-body resistance training (twice weekly) and PP participants consumed their supplement daily. POST measures were obtained 72 h following the last training bout and were identical to PRE testing measures. Muscle biopsies were also obtained at PRE, 24 h following the first exercise bout, and at POST. The first two biopsy time points were used to determine myofibrillar protein synthesis (MyoPS) rates in response to a naïve training bout with or without PP, and the PRE and POST biopsies were used to determine muscle fiber adaptations in females only. Dependent variables were analyzed in males and females separately using two-way (supplement × time) repeated measures ANOVAs, unless otherwise stated. The 24-h integrated MyoPS response to the first naïve training bout was similar between PP and CTL participants (dependent samples <i>t</i>-test <i>p</i> = 0.759 for females, <i>p</i> = 0.912 for males). For males, the only significant supplement × time interactions were for DXA-derived fat mass (interaction <i>p</i> = 0.034) and knee extensor peak torque (interaction <i>p</i> = 0.010); these variables significantly increased in the CTL group (<i>p</i> < 0.05), but not the PP group. For females, no significant supplement × time interactions existed, although interactions for whole body lean tissue mass (<i>p</i> = 0.088) and vastus lateralis thickness (<i>p</i> = 0.099) approached significance and magnitude increases in these characteristics favored the PP versus CTL group. In summary, this is the second study to determine the effects of PP supplementation on resistance training adaptations. While PP supplementation did not significantly enhance training adaptations, the aforementioned trends in females, the limited n-size in males, and this being the second PP supplementation study warrant more research to determine if different PP dosing strategies are more effective than the current approach.
format	article
author	Casey L. Sexton Morgan A. Smith Kristen S. Smith Shelby C. Osburn Joshua S. Godwin Bradley A. Ruple Alex M. Hendricks Christopher B. Mobley Michael D. Goodlett Andrew D. Frugé Kaelin C. Young Michael D. Roberts
author_facet	Casey L. Sexton Morgan A. Smith Kristen S. Smith Shelby C. Osburn Joshua S. Godwin Bradley A. Ruple Alex M. Hendricks Christopher B. Mobley Michael D. Goodlett Andrew D. Frugé Kaelin C. Young Michael D. Roberts
author_sort	Casey L. Sexton
title	Effects of Peanut Protein Supplementation on Resistance Training Adaptations in Younger Adults
title_short	Effects of Peanut Protein Supplementation on Resistance Training Adaptations in Younger Adults
title_full	Effects of Peanut Protein Supplementation on Resistance Training Adaptations in Younger Adults
title_fullStr	Effects of Peanut Protein Supplementation on Resistance Training Adaptations in Younger Adults
title_full_unstemmed	Effects of Peanut Protein Supplementation on Resistance Training Adaptations in Younger Adults
title_sort	effects of peanut protein supplementation on resistance training adaptations in younger adults
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/60b3b38904304423afa6f47d43f47b1e
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Effects of Peanut Protein Supplementation on Resistance Training Adaptations in Younger Adults

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