J Sport Health Sci. 2017 Jun;6(2):207-212. doi: 10.1016/j.jshs.2015.10.004. Epub 2015 Nov 02.
Energy expenditure and muscular activation patterns through active sitting on compliant surfaces.
Journal of sport and health science
D Clark Dickin, Rachel K Surowiec, Henry Wang
Affiliations
Affiliations
- Biomechanics Laboratory, Ball State University, Muncie, IN 47306, USA.
PMID: 30356581
PMCID: PMC6188989 DOI: 10.1016/j.jshs.2015.10.004
Abstract
PURPOSE: To test the effectiveness of sitting surfaces with varied amounts of stability on muscle activity and energy expenditure.
METHODS: Using a within-participants repeated measures design, 11 healthy young-adult females (age = 20.0 ± 1.8 years) were measured using indirect calorimetry to assess energy expenditure, and electromyography to assess muscular activation in trunk and leg musculature under 3 different sitting surfaces: flat-firm surface, air-filled cushion, and a stability ball. Data were analyzed using repeated measures analysis of variance with follow-up pairwise contrasts used to determine the specific effects of sitting surface on muscle activation and energy expenditure.
RESULTS: Significantly greater energy expenditure was recorded for the stability ball (
CONCLUSION: Compliant surfaces resulted in higher levels of muscular activation in the lower extremities facilitating increased caloric expenditure. Given the increasing trends in sedentary careers and the increases in obesity, this is an important finding to validate the merits of active sitting facilitating increased caloric expenditure and muscle activation.
Keywords: Electromyography; Energy metabolism; Female; Posture; Sedentary lifestyle; Workplace
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