Physical activity producing low, but not medium or higher, vertical impacts is inversely related to BMI in older adults: findings from a multi cohort study
Physical activity producing low, but not medium or higher, vertical impacts is inversely related to BMI in older adults: findings from a multi cohort study
Background:High impact physical activity (PA) is thought to improve skeletal health, but its relation to other health outcomes are unclear. We investigated associations between PA impact magnitude and body mass index (BMI) in older adults.
Methods:Data were taken from the Cohort for Skeletal Health in Bristol and Avon (COSHIBA), Hertfordshire Cohort Study, and MRC National Survey of Health and Development. Vertical acceleration peaks from 7-day hip-worn accelerometer recordings were used to classify PA as low (0.5 < g < 1.0g), medium (1 < g < 1.5g), or higher (≥1.5g) impact. Cohort-specific associations of low, medium, and higher impact PA with BMI were examined using linear regressions and estimates combined using random-effects meta-analysis.
Results:A total of 1182 participants (mean age = 72.7 years, 68% female) were included. Low, medium, and higher impact PA were inversely related to BMI in initial models. After adjustment for confounders and other impacts, low, but not medium or higher, impacts were inversely related to BMI (−0.31, p < .001: overall combined standard deviation change in BMI per doubling in the number of low impacts). In adjusted analyses of body composition measured by dual-energy X-ray absorptiometry in COSHIBA, low, but not medium or higher, impacts were inversely related to total body fat mass (−0.19, p < .001) and android:gynoid fat mass ratio (−0.16, p = .01), whereas high impact PA was weakly and positively associated with lean mass (0.05, p = .06).
Conclusions:Greater exposure to PA producing low magnitude vertical impacts was associated with lower BMI and fat mass at older age. Low impact PA may help reduce obesity risk in older adults.
Elhakeem, Ahmed
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Hannam, Kimberly
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Deere, Kevin C
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Hartley, April
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Clark, Emma M
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Moss, Charlotte
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Edwards, Mark
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Dennison, Elaine
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Gaysin, Tim
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Kuh, Diana
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Wong, Andrew
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Cooper, Cyrus
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Cooper, Rachel
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Tobias, Jon H.
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Elhakeem, Ahmed
f9bced1c-9287-4a5e-b892-17998dc6ac88
Hannam, Kimberly
8592a37d-8ee6-447d-9a21-4c4c26979462
Deere, Kevin C
b105adce-b002-46af-ac92-d2a4ee416d60
Hartley, April
cfb02c1c-4233-4660-84f8-43a51e8ada9a
Clark, Emma M
524dafd7-6620-480e-a5dc-fb3a7c629e69
Moss, Charlotte
ae96895f-5c4a-49cd-a771-53bbd6f1d5fb
Edwards, Mark
06c1db44-4341-455e-8812-0ab4a1043828
Dennison, Elaine
ee647287-edb4-4392-8361-e59fd505b1d1
Gaysin, Tim
80ff1ba6-3ad3-4905-8536-c367c8ccb99f
Kuh, Diana
4f3b51aa-21a0-4d68-be14-e1ed75448aaf
Wong, Andrew
64a5fd30-a16e-4fba-a4d9-8d3fffeaa8f9
Cooper, Cyrus
e05f5612-b493-4273-9b71-9e0ce32bdad6
Cooper, Rachel
24a4a55a-ccc1-4961-9b76-b89aa4eb2fdf
Tobias, Jon H.
b41958fb-62c0-4d28-a93e-008a78681817
Elhakeem, Ahmed, Hannam, Kimberly, Deere, Kevin C, Hartley, April, Clark, Emma M, Moss, Charlotte, Edwards, Mark, Dennison, Elaine, Gaysin, Tim, Kuh, Diana, Wong, Andrew, Cooper, Cyrus, Cooper, Rachel and Tobias, Jon H.
(2017)
Physical activity producing low, but not medium or higher, vertical impacts is inversely related to BMI in older adults: findings from a multi cohort study.
The Journals of Gerontology Series A: Biological Sciences and Medical Sciences, [glx176].
(doi:10.1093/gerona/glx176).
Abstract
Background:High impact physical activity (PA) is thought to improve skeletal health, but its relation to other health outcomes are unclear. We investigated associations between PA impact magnitude and body mass index (BMI) in older adults.
Methods:Data were taken from the Cohort for Skeletal Health in Bristol and Avon (COSHIBA), Hertfordshire Cohort Study, and MRC National Survey of Health and Development. Vertical acceleration peaks from 7-day hip-worn accelerometer recordings were used to classify PA as low (0.5 < g < 1.0g), medium (1 < g < 1.5g), or higher (≥1.5g) impact. Cohort-specific associations of low, medium, and higher impact PA with BMI were examined using linear regressions and estimates combined using random-effects meta-analysis.
Results:A total of 1182 participants (mean age = 72.7 years, 68% female) were included. Low, medium, and higher impact PA were inversely related to BMI in initial models. After adjustment for confounders and other impacts, low, but not medium or higher, impacts were inversely related to BMI (−0.31, p < .001: overall combined standard deviation change in BMI per doubling in the number of low impacts). In adjusted analyses of body composition measured by dual-energy X-ray absorptiometry in COSHIBA, low, but not medium or higher, impacts were inversely related to total body fat mass (−0.19, p < .001) and android:gynoid fat mass ratio (−0.16, p = .01), whereas high impact PA was weakly and positively associated with lean mass (0.05, p = .06).
Conclusions:Greater exposure to PA producing low magnitude vertical impacts was associated with lower BMI and fat mass at older age. Low impact PA may help reduce obesity risk in older adults.
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Accepted/In Press date: 16 September 2017
e-pub ahead of print date: 19 September 2017
Identifiers
Local EPrints ID: 415205
URI: http://eprints.soton.ac.uk/id/eprint/415205
ISSN: 1079-5006
PURE UUID: b1087074-c4cb-4d5a-b939-16b67f4fc999
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Date deposited: 02 Nov 2017 17:30
Last modified: 18 Mar 2024 05:08
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Contributors
Author:
Ahmed Elhakeem
Author:
Kimberly Hannam
Author:
Kevin C Deere
Author:
April Hartley
Author:
Emma M Clark
Author:
Charlotte Moss
Author:
Mark Edwards
Author:
Tim Gaysin
Author:
Diana Kuh
Author:
Andrew Wong
Author:
Rachel Cooper
Author:
Jon H. Tobias
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