Effect of Metabolic Syndrome on the Mobility Benefit of a Structured Physical Activity Intervention—The Lifestyle Interventions and Independence for Elders Randomized Clinical Trial

for the LIFE Study Group

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2 Citations (Scopus)

Abstract

Objectives: To test whether structured physical activity (PA) is associated with a greater reduction in major mobility disability (MMD) in older persons with metabolic syndrome (MetS) than in those without. Design: Data from the Lifestyle Interventions and Independence for Elders (LIFE) Study, a multicenter randomized trial of 1,635 persons with assessments every 6 months (average 2.7 years). Setting: Eight U.S. centers. Participants: Sedentary men and women aged 70 to 89 with functional limitations (N = 1,535); 100 participants were excluded because of missing MetS data. Intervention: Participants were randomized to a moderate-intensity PA program (n = 766) or a health education program (n = 769). Measurements: MetS was defined according to the 2009 multiagency harmonized criteria. Outcomes included incident MMD (loss of ability to walk 400 m) and persistent MMD (two consecutive MMD diagnoses or one MMD diagnosis followed by death). Results: Seven hundred sixty-three (49.7%) participants met criteria for MetS. PA reduced incident MMD more than health education did in participants with MetS (hazard ratio (HR) = 0.72, 95% confidence interval (CI) = 0.57–0.91, P =.007) but not in those without MetS (HR = 0.96, 95% CI = 0.73–1.25, P =.75); the test for statistical interaction was not significant (P =.13). PA reduced the risk of persistent MMD in participants with MetS (HR = 0.57, 95% CI = 0.41–0.79, P <.001) but not in those without MetS (HR = 0.97, 95% CI = 0.67–1.41, P =.87). The test for statistical interaction was significant (P =.04). Conclusion: Moderate-intensity PA substantially reduces the risk of persistent MMD in older persons with functional limitations with MetS but not in those without MetS. Comparable results were observed for incident MMD. The LIFE PA program may be an effective strategy for reducing mobility disability in vulnerable older persons with MetS.

Original languageEnglish (US)
Pages (from-to)1244-1250
Number of pages7
JournalJournal of the American Geriatrics Society
Volume65
Issue number6
DOIs
StatePublished - Jun 1 2017

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Life Style
Randomized Controlled Trials
Exercise
Confidence Intervals
Health Education
Aptitude
Multicenter Studies

Keywords

  • Intervention trial
  • Metabolic syndrome
  • Mobility disability
  • Physical activity

ASJC Scopus subject areas

  • Geriatrics and Gerontology

Cite this

@article{e103e8b0bf0846d7b72d2411928ebb37,
title = "Effect of Metabolic Syndrome on the Mobility Benefit of a Structured Physical Activity Intervention—The Lifestyle Interventions and Independence for Elders Randomized Clinical Trial",
abstract = "Objectives: To test whether structured physical activity (PA) is associated with a greater reduction in major mobility disability (MMD) in older persons with metabolic syndrome (MetS) than in those without. Design: Data from the Lifestyle Interventions and Independence for Elders (LIFE) Study, a multicenter randomized trial of 1,635 persons with assessments every 6 months (average 2.7 years). Setting: Eight U.S. centers. Participants: Sedentary men and women aged 70 to 89 with functional limitations (N = 1,535); 100 participants were excluded because of missing MetS data. Intervention: Participants were randomized to a moderate-intensity PA program (n = 766) or a health education program (n = 769). Measurements: MetS was defined according to the 2009 multiagency harmonized criteria. Outcomes included incident MMD (loss of ability to walk 400 m) and persistent MMD (two consecutive MMD diagnoses or one MMD diagnosis followed by death). Results: Seven hundred sixty-three (49.7{\%}) participants met criteria for MetS. PA reduced incident MMD more than health education did in participants with MetS (hazard ratio (HR) = 0.72, 95{\%} confidence interval (CI) = 0.57–0.91, P =.007) but not in those without MetS (HR = 0.96, 95{\%} CI = 0.73–1.25, P =.75); the test for statistical interaction was not significant (P =.13). PA reduced the risk of persistent MMD in participants with MetS (HR = 0.57, 95{\%} CI = 0.41–0.79, P <.001) but not in those without MetS (HR = 0.97, 95{\%} CI = 0.67–1.41, P =.87). The test for statistical interaction was significant (P =.04). Conclusion: Moderate-intensity PA substantially reduces the risk of persistent MMD in older persons with functional limitations with MetS but not in those without MetS. Comparable results were observed for incident MMD. The LIFE PA program may be an effective strategy for reducing mobility disability in vulnerable older persons with MetS.",
keywords = "Intervention trial, Metabolic syndrome, Mobility disability, Physical activity",
author = "{for the LIFE Study Group} and Anda Botoseneanu and Haiying Chen and Ambrosius, {Walter T.} and Allore, {Heather G.} and Stephen Anton and Folta, {Sara C.} and King, {Abby C.} and Nicklas, {Barbara J.} and Bonnie Spring and Strotmeyer, {Elsa S.} and Gill, {Thomas M.}",
year = "2017",
month = "6",
day = "1",
doi = "10.1111/jgs.14793",
language = "English (US)",
volume = "65",
pages = "1244--1250",
journal = "Journal of the American Geriatrics Society",
issn = "0002-8614",
publisher = "Wiley-Blackwell",
number = "6",

}

TY - JOUR

T1 - Effect of Metabolic Syndrome on the Mobility Benefit of a Structured Physical Activity Intervention—The Lifestyle Interventions and Independence for Elders Randomized Clinical Trial

AU - for the LIFE Study Group

AU - Botoseneanu, Anda

AU - Chen, Haiying

AU - Ambrosius, Walter T.

AU - Allore, Heather G.

AU - Anton, Stephen

AU - Folta, Sara C.

AU - King, Abby C.

AU - Nicklas, Barbara J.

AU - Spring, Bonnie

AU - Strotmeyer, Elsa S.

AU - Gill, Thomas M.

PY - 2017/6/1

Y1 - 2017/6/1

N2 - Objectives: To test whether structured physical activity (PA) is associated with a greater reduction in major mobility disability (MMD) in older persons with metabolic syndrome (MetS) than in those without. Design: Data from the Lifestyle Interventions and Independence for Elders (LIFE) Study, a multicenter randomized trial of 1,635 persons with assessments every 6 months (average 2.7 years). Setting: Eight U.S. centers. Participants: Sedentary men and women aged 70 to 89 with functional limitations (N = 1,535); 100 participants were excluded because of missing MetS data. Intervention: Participants were randomized to a moderate-intensity PA program (n = 766) or a health education program (n = 769). Measurements: MetS was defined according to the 2009 multiagency harmonized criteria. Outcomes included incident MMD (loss of ability to walk 400 m) and persistent MMD (two consecutive MMD diagnoses or one MMD diagnosis followed by death). Results: Seven hundred sixty-three (49.7%) participants met criteria for MetS. PA reduced incident MMD more than health education did in participants with MetS (hazard ratio (HR) = 0.72, 95% confidence interval (CI) = 0.57–0.91, P =.007) but not in those without MetS (HR = 0.96, 95% CI = 0.73–1.25, P =.75); the test for statistical interaction was not significant (P =.13). PA reduced the risk of persistent MMD in participants with MetS (HR = 0.57, 95% CI = 0.41–0.79, P <.001) but not in those without MetS (HR = 0.97, 95% CI = 0.67–1.41, P =.87). The test for statistical interaction was significant (P =.04). Conclusion: Moderate-intensity PA substantially reduces the risk of persistent MMD in older persons with functional limitations with MetS but not in those without MetS. Comparable results were observed for incident MMD. The LIFE PA program may be an effective strategy for reducing mobility disability in vulnerable older persons with MetS.

AB - Objectives: To test whether structured physical activity (PA) is associated with a greater reduction in major mobility disability (MMD) in older persons with metabolic syndrome (MetS) than in those without. Design: Data from the Lifestyle Interventions and Independence for Elders (LIFE) Study, a multicenter randomized trial of 1,635 persons with assessments every 6 months (average 2.7 years). Setting: Eight U.S. centers. Participants: Sedentary men and women aged 70 to 89 with functional limitations (N = 1,535); 100 participants were excluded because of missing MetS data. Intervention: Participants were randomized to a moderate-intensity PA program (n = 766) or a health education program (n = 769). Measurements: MetS was defined according to the 2009 multiagency harmonized criteria. Outcomes included incident MMD (loss of ability to walk 400 m) and persistent MMD (two consecutive MMD diagnoses or one MMD diagnosis followed by death). Results: Seven hundred sixty-three (49.7%) participants met criteria for MetS. PA reduced incident MMD more than health education did in participants with MetS (hazard ratio (HR) = 0.72, 95% confidence interval (CI) = 0.57–0.91, P =.007) but not in those without MetS (HR = 0.96, 95% CI = 0.73–1.25, P =.75); the test for statistical interaction was not significant (P =.13). PA reduced the risk of persistent MMD in participants with MetS (HR = 0.57, 95% CI = 0.41–0.79, P <.001) but not in those without MetS (HR = 0.97, 95% CI = 0.67–1.41, P =.87). The test for statistical interaction was significant (P =.04). Conclusion: Moderate-intensity PA substantially reduces the risk of persistent MMD in older persons with functional limitations with MetS but not in those without MetS. Comparable results were observed for incident MMD. The LIFE PA program may be an effective strategy for reducing mobility disability in vulnerable older persons with MetS.

KW - Intervention trial

KW - Metabolic syndrome

KW - Mobility disability

KW - Physical activity

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U2 - 10.1111/jgs.14793

DO - 10.1111/jgs.14793

M3 - Article

VL - 65

SP - 1244

EP - 1250

JO - Journal of the American Geriatrics Society

JF - Journal of the American Geriatrics Society

SN - 0002-8614

IS - 6

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