A randomized controlled trial of continuous activity, short bouts, and a 10,000 step guideline in inactive adults.
Prev Med
; 52(2): 120-5, 2011 Feb.
Article
em En
| MEDLINE
| ID: mdl-21147156
ABSTRACT
OBJECTIVE:
Although several studies have examined the effect of accumulated bouts on health outcomes, the impact of recommending short bouts on activity-related behavior in health promotion efforts has received minimal investigation.METHOD:
During this 5-week study in 2007-2008, 43 university employees (8 male, 35 female) in the Southeastern United States were randomly assigned to a group recommended to achieve (a) 10,000 steps (10K), (b) 30-minutes (30 min) of continuous physical activity, or (c) 30-minutes of activity in bouts of at least 10 minutes (bouts). RESULTS ANDCONCLUSIONS:
Repeated measures ANOVA revealed that the 10K group showed the largest increase in step counts whereas the bouts group showed the smallest change over the intervention period, p=0.01. Condition differences were most pronounced on days in which participants met their activity recommendation. Accelerometer results revealed that the 10K (d=1.1) and 30 min groups (d=0.89) showed large increases in minutes of moderate to vigorous activity (MVPA), whereas the bouts group showed minimal change (d=0.11). Although activity recommendations did not differentially affect self-efficacy, participants from all conditions showed decreased self-efficacy across the intervention (p=0.02), highlighting the need to develop strategies to increase self-efficacy in activity promotion efforts.
Texto completo:
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Base de dados:
MEDLINE
Assunto principal:
Caminhada
/
Autoeficácia
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Comportamento Sedentário
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Promoção da Saúde
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Atividade Motora
Tipo de estudo:
Clinical_trials
/
Guideline
Limite:
Adult
/
Aged
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Female
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Humans
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Male
/
Middle aged
País/Região como assunto:
America do norte
Idioma:
En
Revista:
Prev Med
Ano de publicação:
2011
Tipo de documento:
Article
País de afiliação:
Estados Unidos