Can sit-to-stand muscle power explain the ability to perform functional tasks in adults with severe obesity?

Orange, Sam, Marshall, Phil, Madden, Leigh and Vince, Rebecca (2019) Can sit-to-stand muscle power explain the ability to perform functional tasks in adults with severe obesity? Journal of Sports Sciences, 37 (11). pp. 1227-1234. ISSN 0264-0414

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Official URL: https://doi.org/10.1080/02640414.2018.1553500

Abstract

This study examined the relationship between sit-to-stand (STS) power and physical function in adults with severe obesity. Thirty-eight adults (age: 44 ± 12 years; body mass index [BMI]: 45.2 ± 7.8 kg/m2) completed evaluations of STS power, strength and functional performance. STS power was measured with a wearable inertial sensor, strength was assessed with the isometric mid-thigh pull, and function was measured with the timed up-and-go (TUG), six-minute walk test (6MWT) and 30-s chair STS. Power and strength (normalised to body mass) entered regression models in addition to age, gender, BMI and physical activity (daily step count). Power displayed large univariate associations with TUG (r = 0.50) and 30-s chair STS (r = 0.67), and a moderate association with 6MWT (r = 0.49). Forward stepwise regression revealed that power independently contributed to TUG (β = -0.40, p = 0.010), 30-s chair STS (β = 0.67, p < 0.001) and 6MWT performance (β = 0.27, p = 0.007). Power also appeared to be a superior determinant of function compared with strength. Power generated via the STS transfer largely underpins the ability to perform functional tasks in adults with severe obesity, although intervention studies are required to investigate a potentially causal relationship.

Item Type: Article
Uncontrolled Keywords: Power, strength, physical function, obesity, reliability
Subjects: B100 Anatomy, Physiology and Pathology
Department: Faculties > Health and Life Sciences > Sport, Exercise and Rehabilitation
Depositing User: Becky Skoyles
Date Deposited: 29 Nov 2018 10:06
Last Modified: 11 Oct 2019 08:18
URI: http://nrl.northumbria.ac.uk/id/eprint/36956

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