The Association between Incidental Physical Activity and Cardiorespiratory Fitness
Objective The primary objective of this study was two-fold. First, to determine whether incidental physical activity (IPA), which is composed of both light-intensity physical activity (LPA) and sporadic moderate-intensity physical activity (MPA; physical activity accrued in bouts less than 10 minute...
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ndltd-LACETR-oai-collectionscanada.gc.ca-OKQ.1974-66362013-12-20T03:40:01ZThe Association between Incidental Physical Activity and Cardiorespiratory FitnessCRAIG-BROADWITH, MARIAPhysical ActivityCardiorespiratory FitnessObjective The primary objective of this study was two-fold. First, to determine whether incidental physical activity (IPA), which is composed of both light-intensity physical activity (LPA) and sporadic moderate-intensity physical activity (MPA; physical activity accrued in bouts less than 10 minutes), was associated with cardiorespiratory fitness (CRF). Second, to determine whether sporadic MPA was associated with CRF. Methods Participants were abdominally obese (defined as a waist circumference > 102 cm in men and > 88 cm in women), inactive, adult men (N = 24; [mean ± SD] age = 55.5 ± 7.8 years) and women (N = 55; age = 52.3 ± 7.5 years) recruited from Kingston, Canada. Cardiorespiratory fitness was assessed using a graded treadmill test. IPA (activity ≥ 1 metabolic equivalent (MET)) and sporadic MPA (activity ≥ 3 METs accrued in bouts less than 10 minutes) was measured using the SenseWear Pro Armband (SWA). IPA and sporadic MPA were categorized into duration (minutes/day) and expenditure (MET-minutes/day). In secondary analyses, we investigated the association between LPA (activity between 1 – 2.99 METs), sedentary behaviour (SED; activity < 1.0 MET) and CRF. Results Participants accumulated an average of 326.6 ± 127 minutes of IPA per day which was composed of 40.7 ± 17.8 minutes of sporadic MPA and 285.9 ± 118.2 minutes of LPA. Both duration and expenditure of IPA were significantly associated with CRF independent of sex, however, after further control for body mass index and age neither association remained significant (p > 0.05). Sporadic MPA was significantly associated with CRF after control for covariates (p ≤ 0.05). Neither LPA nor SED were associated with CRF after control for covariates (p > 0.05). Conclusions IPA was not significantly associated with CRF, however, sporadic MPA was an independent predictor of CRF.Thesis (Master, Kinesiology & Health Studies) -- Queen's University, 2011-07-30 16:43:47.703Queen's University (Kingston, Ont.). Theses (Queen's University (Kingston, Ont.))2011-07-30 16:43:47.7032011-08-11T15:42:51Z2011-08-11T15:42:51Z2011-08-11Thesishttp://hdl.handle.net/1974/6636enenCanadian thesesThis publication is made available by the authority of the copyright owner solely for the purpose of private study and research and may not be copied or reproduced except as permitted by the copyright laws without written authority from the copyright owner. |
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Physical Activity Cardiorespiratory Fitness |
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Physical Activity Cardiorespiratory Fitness CRAIG-BROADWITH, MARIA The Association between Incidental Physical Activity and Cardiorespiratory Fitness |
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Objective The primary objective of this study was two-fold. First, to determine whether incidental physical activity (IPA), which is composed of both light-intensity physical activity (LPA) and sporadic moderate-intensity physical activity (MPA; physical activity accrued in bouts less than 10 minutes), was associated with cardiorespiratory fitness (CRF). Second, to determine whether sporadic MPA was associated with CRF.
Methods Participants were abdominally obese (defined as a waist circumference > 102 cm in men and > 88 cm in women), inactive, adult men (N = 24; [mean ± SD] age = 55.5 ± 7.8 years) and women (N = 55; age = 52.3 ± 7.5 years) recruited from Kingston, Canada. Cardiorespiratory fitness was assessed using a graded treadmill test. IPA (activity ≥ 1 metabolic equivalent (MET)) and sporadic MPA (activity ≥ 3 METs accrued in bouts less than 10 minutes) was measured using the SenseWear Pro Armband (SWA). IPA and sporadic MPA were categorized into duration (minutes/day) and expenditure (MET-minutes/day). In secondary analyses, we investigated the association between LPA (activity between 1 – 2.99 METs), sedentary behaviour (SED; activity < 1.0 MET) and CRF.
Results Participants accumulated an average of 326.6 ± 127 minutes of IPA per day which was composed of 40.7 ± 17.8 minutes of sporadic MPA and 285.9 ± 118.2 minutes of LPA. Both duration and expenditure of IPA were significantly associated with CRF independent of sex, however, after further control for body mass index and age neither association remained significant (p > 0.05). Sporadic MPA was significantly associated with CRF after control for covariates (p ≤ 0.05). Neither LPA nor SED were associated with CRF after control for covariates (p > 0.05).
Conclusions IPA was not significantly associated with CRF, however, sporadic MPA was an independent predictor of CRF. === Thesis (Master, Kinesiology & Health Studies) -- Queen's University, 2011-07-30 16:43:47.703 |
author2 |
Queen's University (Kingston, Ont.). Theses (Queen's University (Kingston, Ont.)) |
author_facet |
Queen's University (Kingston, Ont.). Theses (Queen's University (Kingston, Ont.)) CRAIG-BROADWITH, MARIA |
author |
CRAIG-BROADWITH, MARIA |
author_sort |
CRAIG-BROADWITH, MARIA |
title |
The Association between Incidental Physical Activity and Cardiorespiratory Fitness |
title_short |
The Association between Incidental Physical Activity and Cardiorespiratory Fitness |
title_full |
The Association between Incidental Physical Activity and Cardiorespiratory Fitness |
title_fullStr |
The Association between Incidental Physical Activity and Cardiorespiratory Fitness |
title_full_unstemmed |
The Association between Incidental Physical Activity and Cardiorespiratory Fitness |
title_sort |
association between incidental physical activity and cardiorespiratory fitness |
publishDate |
2011 |
url |
http://hdl.handle.net/1974/6636 |
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