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Sex-differences in relation to the association between patterns of physical activity and sedentary behavior with frailty.

Abstract：

OBJECTIVE:To investigate the sex-difference in relation to the association between moderate-vigorous physical activity (MVPA) and sedentary time (ST) patterns with frailty. METHOD:Accelerometry from ≥50 year olds from the National Health and Nutrition Examination Survey (2003-04/2005-06 cycles) were included. Bouted and sporadic MVPA were defined as MVPA in ≥10 min or <10 min durations, respectively. MVPA was analyzed based on meeting 0 %, 1-49 %, 50-99 %, and ≥100 % of the physical activity guidelines of 150 min/week. A duration of ≥30 minutes defined prolonged ST. The frequency (≥1 min interruption in ST), intensity and duration of breaks from ST were calculated. A 46-item frailty index (FI) quantified frailty. Multivariable linear regression models adjusted for demographics, total sedentary time, and accelerometer wear time. RESULTS:There were 1143 females and 1174 males available for analysis. Bouted MVPA was associated with lower frailty levels; the association peaked at meeting 50-99 % of the guidelines in females and ≥1.0 % in males (p = NS for sex-interaction). Meeting a higher proportion of the guidelines through sporadic MVPA was significantly associated with a lower FI in males only (p = NS for sex-interaction). Prolonged ST bouts were associated with worse frailty in females but not males (p < 0.05 sex-interaction). Average break intensity was associated with a lower FI in both sexes, whereas, total sedentary breaks were not (p = NS for sex-interaction). Average break duration was associated with frailty in males (p = NS for sex-interaction). CONCLUSION:Prolonged ST was more detrimentally associated with frailty in females than males, which could influence tailored movement prescriptions and guidelines.

journal_name

Arch Gerontol Geriatr

journal_title

Archives of gerontology and geriatrics

authors

Kehler DS,Clara I,Hiebert B,Stammers AN,Hay JL,Schultz A,Arora RC,Tangri N,Duhamel TA

doi

10.1016/j.archger.2019.103972

subject

Has Abstract

pub_date

2020-01-01 00:00:00

pages

103972

eissn

0167-4943

issn

1872-6976

pii

S0167-4943(19)30215-8

journal_volume

pub_type

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Sex-differences in relation to the association between patterns of physical activity and sedentary behavior with frailty.