Alternating Sitting and Standing Increases the Workplace Energy Expenditure of Overweight Adults.
J Phys Act Health
; 13(1): 24-9, 2016 Jan.
Article
em En
| MEDLINE
| ID: mdl-25872228
ABSTRACT
BACKGROUND:
To determine whether alternating bouts of sitting and standing at work influences daily workplace energy expenditure (EE).METHODS:
Twenty-three overweight/obese office workers (mean ± SD; age 48.2 ± 7.9 y, body mass index 29.6 ± 4.0 kg/m2) undertook two 5-day experimental conditions in an equal, randomized order. Participants wore a "metabolic armband" (SenseWear Armband Mini) to estimate daily workplace EE (KJ/8 h) while working (1) in a seated work posture (SIT condition) or (2) alternating between a standing and seated work posture every 30 minutes using a sit-stand workstation (STAND-SIT condition). To assess the validity of the metabolic armband, a criterion measure of acute EE (KJ/min; indirect calorimetry) was performed on day 4 of each condition.RESULTS:
Standing to work acutely increased EE by 0.7 [95% CI 0.3-1.0] KJ/min (13%), relative to sitting (P = .002). Compared with indirect calorimetry, the metabolic armband provided a valid estimate of EE while standing to work (mean bias 0.1 [-0.3 to 0.4] KJ/min) but modestly overestimated EE while sitting (P = .005). Daily workplace EE was greatest during the STAND-SIT condition (mean condition difference [95% CI] 76 [8-144] KJ/8-h workday, P = .03).CONCLUSIONS:
Intermittent standing at work can modestly increase daily workplace EE compared with seated work in overweight/obese office workers.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Local de Trabalho
/
Metabolismo Energético
/
Sobrepeso
Tipo de estudo:
Clinical_trials
/
Health_economic_evaluation
/
Observational_studies
Limite:
Female
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Humans
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Male
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Middle aged
Idioma:
En
Revista:
J Phys Act Health
Ano de publicação:
2016
Tipo de documento:
Article
País de afiliação:
Austrália