Beta-Alanine Does Not Enhance the Effects of Resistance Training in Older Adults

Christopher H. Bailey, Joseph Signorile, Arlette Perry, Kevin Jacobs, Nicholas Myers

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

To investigate the potential of beta-alanine to increase muscular endurance of elder individuals in specific resistance-training protocols, we randomly assigned 27 participants (60–82 years of age) to a 12-week double-blind intervention using 3.2 g/day beta-alanine or placebo with or without resistance training to determine the effects on anthropometrics, muscular performance, and activities of daily living (ADL). The endurance-based resistance-training program (ERT) was given three times per week and included two sets of 15–25 repetitions on 11 computerized pneumatic machines (alternating upper and lower body) at an intensity of 50% of maximum lifting weight (1RM). Mixed design analysis of variance (ANOVA) revealed no significant group × time interactions (p > .05) for any anthropometric or strength measures except 1RM leg press (p = .010). A post hoc analysis revealed significant improvements in 1RM leg press for both the resistance-training groups (p < .001) but no significant between-group difference attributable to beta-alanine. For the 20-repetition chest and leg press tests, no main effects of beta-alanine or group × time interactions for the exercise versus control groups were observed. Pairwise comparisons, however, did reveal significant improvements in peak and average power for both tests and fatigue index for the chest press in resistance-training groups. Although beta-alanine had no effect on any measures, the ERT program did positively affect three performance variables: 1RM, mechanical power, and fatigue patterns during muscular endurance testing. Future research should examine beta-alanine with different dosages and training programs to expand upon our findings using endurance-based resistance training.

Original languageEnglish (US)
Pages (from-to)1-11
Number of pages11
JournalJournal of Dietary Supplements
DOIs
StateAccepted/In press - Jan 10 2018

Fingerprint

beta-Alanine
strength training
Resistance Training
education programs
Leg
legs
Education
chest
Fatigue
Thorax
Weight Lifting
Activities of Daily Living
beta-alanine
testing
Analysis of Variance
placebos
Placebos
exercise
analysis of variance
Control Groups

Keywords

  • amino acid supplementation
  • elderly
  • muscular endurance
  • neuromuscular fatigue

ASJC Scopus subject areas

  • Food Science
  • Nutrition and Dietetics
  • Pharmacology (medical)

Cite this

Beta-Alanine Does Not Enhance the Effects of Resistance Training in Older Adults. / Bailey, Christopher H.; Signorile, Joseph; Perry, Arlette; Jacobs, Kevin; Myers, Nicholas.

In: Journal of Dietary Supplements, 10.01.2018, p. 1-11.

Research output: Contribution to journalArticle

@article{8fc003d71108441a824768d26efe2974,
title = "Beta-Alanine Does Not Enhance the Effects of Resistance Training in Older Adults",
abstract = "To investigate the potential of beta-alanine to increase muscular endurance of elder individuals in specific resistance-training protocols, we randomly assigned 27 participants (60–82 years of age) to a 12-week double-blind intervention using 3.2 g/day beta-alanine or placebo with or without resistance training to determine the effects on anthropometrics, muscular performance, and activities of daily living (ADL). The endurance-based resistance-training program (ERT) was given three times per week and included two sets of 15–25 repetitions on 11 computerized pneumatic machines (alternating upper and lower body) at an intensity of 50{\%} of maximum lifting weight (1RM). Mixed design analysis of variance (ANOVA) revealed no significant group × time interactions (p > .05) for any anthropometric or strength measures except 1RM leg press (p = .010). A post hoc analysis revealed significant improvements in 1RM leg press for both the resistance-training groups (p < .001) but no significant between-group difference attributable to beta-alanine. For the 20-repetition chest and leg press tests, no main effects of beta-alanine or group × time interactions for the exercise versus control groups were observed. Pairwise comparisons, however, did reveal significant improvements in peak and average power for both tests and fatigue index for the chest press in resistance-training groups. Although beta-alanine had no effect on any measures, the ERT program did positively affect three performance variables: 1RM, mechanical power, and fatigue patterns during muscular endurance testing. Future research should examine beta-alanine with different dosages and training programs to expand upon our findings using endurance-based resistance training.",
keywords = "amino acid supplementation, elderly, muscular endurance, neuromuscular fatigue",
author = "Bailey, {Christopher H.} and Joseph Signorile and Arlette Perry and Kevin Jacobs and Nicholas Myers",
year = "2018",
month = "1",
day = "10",
doi = "10.1080/19390211.2017.1406422",
language = "English (US)",
pages = "1--11",
journal = "Journal of Dietary Supplements",
issn = "1939-0211",
publisher = "Informa Healthcare",

}

TY - JOUR

T1 - Beta-Alanine Does Not Enhance the Effects of Resistance Training in Older Adults

AU - Bailey, Christopher H.

AU - Signorile, Joseph

AU - Perry, Arlette

AU - Jacobs, Kevin

AU - Myers, Nicholas

PY - 2018/1/10

Y1 - 2018/1/10

N2 - To investigate the potential of beta-alanine to increase muscular endurance of elder individuals in specific resistance-training protocols, we randomly assigned 27 participants (60–82 years of age) to a 12-week double-blind intervention using 3.2 g/day beta-alanine or placebo with or without resistance training to determine the effects on anthropometrics, muscular performance, and activities of daily living (ADL). The endurance-based resistance-training program (ERT) was given three times per week and included two sets of 15–25 repetitions on 11 computerized pneumatic machines (alternating upper and lower body) at an intensity of 50% of maximum lifting weight (1RM). Mixed design analysis of variance (ANOVA) revealed no significant group × time interactions (p > .05) for any anthropometric or strength measures except 1RM leg press (p = .010). A post hoc analysis revealed significant improvements in 1RM leg press for both the resistance-training groups (p < .001) but no significant between-group difference attributable to beta-alanine. For the 20-repetition chest and leg press tests, no main effects of beta-alanine or group × time interactions for the exercise versus control groups were observed. Pairwise comparisons, however, did reveal significant improvements in peak and average power for both tests and fatigue index for the chest press in resistance-training groups. Although beta-alanine had no effect on any measures, the ERT program did positively affect three performance variables: 1RM, mechanical power, and fatigue patterns during muscular endurance testing. Future research should examine beta-alanine with different dosages and training programs to expand upon our findings using endurance-based resistance training.

AB - To investigate the potential of beta-alanine to increase muscular endurance of elder individuals in specific resistance-training protocols, we randomly assigned 27 participants (60–82 years of age) to a 12-week double-blind intervention using 3.2 g/day beta-alanine or placebo with or without resistance training to determine the effects on anthropometrics, muscular performance, and activities of daily living (ADL). The endurance-based resistance-training program (ERT) was given three times per week and included two sets of 15–25 repetitions on 11 computerized pneumatic machines (alternating upper and lower body) at an intensity of 50% of maximum lifting weight (1RM). Mixed design analysis of variance (ANOVA) revealed no significant group × time interactions (p > .05) for any anthropometric or strength measures except 1RM leg press (p = .010). A post hoc analysis revealed significant improvements in 1RM leg press for both the resistance-training groups (p < .001) but no significant between-group difference attributable to beta-alanine. For the 20-repetition chest and leg press tests, no main effects of beta-alanine or group × time interactions for the exercise versus control groups were observed. Pairwise comparisons, however, did reveal significant improvements in peak and average power for both tests and fatigue index for the chest press in resistance-training groups. Although beta-alanine had no effect on any measures, the ERT program did positively affect three performance variables: 1RM, mechanical power, and fatigue patterns during muscular endurance testing. Future research should examine beta-alanine with different dosages and training programs to expand upon our findings using endurance-based resistance training.

KW - amino acid supplementation

KW - elderly

KW - muscular endurance

KW - neuromuscular fatigue

UR - http://www.scopus.com/inward/record.url?scp=85040986872&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85040986872&partnerID=8YFLogxK

U2 - 10.1080/19390211.2017.1406422

DO - 10.1080/19390211.2017.1406422

M3 - Article

C2 - 29336621

AN - SCOPUS:85040986872

SP - 1

EP - 11

JO - Journal of Dietary Supplements

JF - Journal of Dietary Supplements

SN - 1939-0211

ER -