Factors associated with change in objectively measured physical activity in older people

data from the Physical Activity Cohort Scotland study

Clare Clarke, Falko F. Sniehotta, Thenmalar Vadiveloo, Ishbel Argo, Peter Donnan, Marion McMurdo, Miles Witham (Lead / Corresponding author)

Research output: Contribution to journalArticle

4 Citations (Scopus)
106 Downloads (Pure)

Abstract

Background: Cross-sectional relationships between physical activity and health have been explored extensively, but less is known about how physical activity changes with time in older people. The aim of this study was to assess baseline predictors of how objectively measured physical activity changes with time in older people.
Methods: Longitudinal cohort study using data from the Physical Activity Cohort Scotland. A sample of community-dwelling older people aged 65 and over were recruited in 2009-2011, then followed up 2-3 years later. Physical activity was measured using Stayhealthy RT3 accelerometers over 7 days. Other data collected included baseline comorbidity, health-related quality of life (SF-36), extended Theory of Planned Behaviour Questionnaire and Social Capital Module of the General Household Survey. Associations between follow-up accelerometer counts and baseline predictors were analysed using a series of linear regression models, adjusting for baseline activity levels and follow-up time.
Results: Follow up data were available for 339 of the original 584 participants. The mean age was 77 years, 185 (55%) were female and mean follow up time was 26 months. Mean activity counts fell by between 2% per year (age <=80, deprivation decile 5-10) and 12% per year (age >80, deprivation decile 5-10) from baseline values. In univariate analysis age, sex, deprivation decile, most SF-36 domains, most measures of social connectedness, most measures from the extended Theory of Planned Behaviour, hypertension, diabetes mellitus, chronic pain and depression score were significantly associated with adjusted activity counts at follow-up. In multivariate regression age, satisfactory friend network, SF-36 physical function score, and the presence of diabetes mellitus were independent predictors of activity counts at follow up after adjustment for baseline count and duration of follow up.
Conclusions: Health status and social connectedness, but not extended Theory of Planned Behaviour measures, independently predicted changes in physical activity in community dwelling older people.
Original languageEnglish
Article number180
Pages (from-to)1-9
Number of pages9
JournalBMC Geriatrics
Volume17
DOIs
Publication statusPublished - 14 Aug 2017

Fingerprint

Scotland
Cohort Studies
Exercise
Independent Living
Linear Models
Diabetes Mellitus
Chronic Pain
Health Status
Longitudinal Studies
Comorbidity
Quality of Life
Depression
Hypertension
Health
Surveys and Questionnaires

Keywords

  • Physical Activity
  • Older adults
  • Aging
  • Accelerometry
  • Public health

Cite this

@article{3fda68220b384f38ac2a8afd5ee9abf0,
title = "Factors associated with change in objectively measured physical activity in older people: data from the Physical Activity Cohort Scotland study",
abstract = "Background: Cross-sectional relationships between physical activity and health have been explored extensively, but less is known about how physical activity changes with time in older people. The aim of this study was to assess baseline predictors of how objectively measured physical activity changes with time in older people.Methods: Longitudinal cohort study using data from the Physical Activity Cohort Scotland. A sample of community-dwelling older people aged 65 and over were recruited in 2009-2011, then followed up 2-3 years later. Physical activity was measured using Stayhealthy RT3 accelerometers over 7 days. Other data collected included baseline comorbidity, health-related quality of life (SF-36), extended Theory of Planned Behaviour Questionnaire and Social Capital Module of the General Household Survey. Associations between follow-up accelerometer counts and baseline predictors were analysed using a series of linear regression models, adjusting for baseline activity levels and follow-up time.Results: Follow up data were available for 339 of the original 584 participants. The mean age was 77 years, 185 (55{\%}) were female and mean follow up time was 26 months. Mean activity counts fell by between 2{\%} per year (age <=80, deprivation decile 5-10) and 12{\%} per year (age >80, deprivation decile 5-10) from baseline values. In univariate analysis age, sex, deprivation decile, most SF-36 domains, most measures of social connectedness, most measures from the extended Theory of Planned Behaviour, hypertension, diabetes mellitus, chronic pain and depression score were significantly associated with adjusted activity counts at follow-up. In multivariate regression age, satisfactory friend network, SF-36 physical function score, and the presence of diabetes mellitus were independent predictors of activity counts at follow up after adjustment for baseline count and duration of follow up.Conclusions: Health status and social connectedness, but not extended Theory of Planned Behaviour measures, independently predicted changes in physical activity in community dwelling older people.",
keywords = "Physical Activity, Older adults, Aging , Accelerometry , Public health",
author = "Clare Clarke and Sniehotta, {Falko F.} and Thenmalar Vadiveloo and Ishbel Argo and Peter Donnan and Marion McMurdo and Miles Witham",
note = "Funding: Chief Scientist Office, Scottish Government. Grants CZH/4/518 and CZG/2/569",
year = "2017",
month = "8",
day = "14",
doi = "10.1186/s12877-017-0578-1",
language = "English",
volume = "17",
pages = "1--9",
journal = "BMC Geriatrics",
issn = "1471-2318",
publisher = "BioMed Central",

}

Factors associated with change in objectively measured physical activity in older people : data from the Physical Activity Cohort Scotland study. / Clarke, Clare; Sniehotta, Falko F.; Vadiveloo, Thenmalar; Argo, Ishbel; Donnan, Peter; McMurdo, Marion; Witham, Miles (Lead / Corresponding author).

In: BMC Geriatrics, Vol. 17, 180, 14.08.2017, p. 1-9.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Factors associated with change in objectively measured physical activity in older people

T2 - data from the Physical Activity Cohort Scotland study

AU - Clarke, Clare

AU - Sniehotta, Falko F.

AU - Vadiveloo, Thenmalar

AU - Argo, Ishbel

AU - Donnan, Peter

AU - McMurdo, Marion

AU - Witham, Miles

N1 - Funding: Chief Scientist Office, Scottish Government. Grants CZH/4/518 and CZG/2/569

PY - 2017/8/14

Y1 - 2017/8/14

N2 - Background: Cross-sectional relationships between physical activity and health have been explored extensively, but less is known about how physical activity changes with time in older people. The aim of this study was to assess baseline predictors of how objectively measured physical activity changes with time in older people.Methods: Longitudinal cohort study using data from the Physical Activity Cohort Scotland. A sample of community-dwelling older people aged 65 and over were recruited in 2009-2011, then followed up 2-3 years later. Physical activity was measured using Stayhealthy RT3 accelerometers over 7 days. Other data collected included baseline comorbidity, health-related quality of life (SF-36), extended Theory of Planned Behaviour Questionnaire and Social Capital Module of the General Household Survey. Associations between follow-up accelerometer counts and baseline predictors were analysed using a series of linear regression models, adjusting for baseline activity levels and follow-up time.Results: Follow up data were available for 339 of the original 584 participants. The mean age was 77 years, 185 (55%) were female and mean follow up time was 26 months. Mean activity counts fell by between 2% per year (age <=80, deprivation decile 5-10) and 12% per year (age >80, deprivation decile 5-10) from baseline values. In univariate analysis age, sex, deprivation decile, most SF-36 domains, most measures of social connectedness, most measures from the extended Theory of Planned Behaviour, hypertension, diabetes mellitus, chronic pain and depression score were significantly associated with adjusted activity counts at follow-up. In multivariate regression age, satisfactory friend network, SF-36 physical function score, and the presence of diabetes mellitus were independent predictors of activity counts at follow up after adjustment for baseline count and duration of follow up.Conclusions: Health status and social connectedness, but not extended Theory of Planned Behaviour measures, independently predicted changes in physical activity in community dwelling older people.

AB - Background: Cross-sectional relationships between physical activity and health have been explored extensively, but less is known about how physical activity changes with time in older people. The aim of this study was to assess baseline predictors of how objectively measured physical activity changes with time in older people.Methods: Longitudinal cohort study using data from the Physical Activity Cohort Scotland. A sample of community-dwelling older people aged 65 and over were recruited in 2009-2011, then followed up 2-3 years later. Physical activity was measured using Stayhealthy RT3 accelerometers over 7 days. Other data collected included baseline comorbidity, health-related quality of life (SF-36), extended Theory of Planned Behaviour Questionnaire and Social Capital Module of the General Household Survey. Associations between follow-up accelerometer counts and baseline predictors were analysed using a series of linear regression models, adjusting for baseline activity levels and follow-up time.Results: Follow up data were available for 339 of the original 584 participants. The mean age was 77 years, 185 (55%) were female and mean follow up time was 26 months. Mean activity counts fell by between 2% per year (age <=80, deprivation decile 5-10) and 12% per year (age >80, deprivation decile 5-10) from baseline values. In univariate analysis age, sex, deprivation decile, most SF-36 domains, most measures of social connectedness, most measures from the extended Theory of Planned Behaviour, hypertension, diabetes mellitus, chronic pain and depression score were significantly associated with adjusted activity counts at follow-up. In multivariate regression age, satisfactory friend network, SF-36 physical function score, and the presence of diabetes mellitus were independent predictors of activity counts at follow up after adjustment for baseline count and duration of follow up.Conclusions: Health status and social connectedness, but not extended Theory of Planned Behaviour measures, independently predicted changes in physical activity in community dwelling older people.

KW - Physical Activity

KW - Older adults

KW - Aging

KW - Accelerometry

KW - Public health

U2 - 10.1186/s12877-017-0578-1

DO - 10.1186/s12877-017-0578-1

M3 - Article

VL - 17

SP - 1

EP - 9

JO - BMC Geriatrics

JF - BMC Geriatrics

SN - 1471-2318

M1 - 180

ER -