Effect of home-based resistance training performed with or without a high-speed component in adults with severe obesity

Orange, Samuel T.; Marshall, Phil; Madden, Leigh A.; Vince, Rebecca V.

Abstract

The objectives of this study were to:(a) evaluate the effects of walking and home-based resistance training on function, strength, power, anthropometry, and quality of life (QoL) in adults with severe obesity, and (b) assess whether performing resistance exercises with maximal concentric velocity provides additional benefits compared with traditional slow-speed resistance training. Adults with a body mass index of≥40kg/m2 were randomized to slow-speed strength training (ST; n=19) or high-speed power training (PT; n=19). Both groups completed a walking intervention and home-based resistance training (2× per week for 6months). The PT group performed resistance exercises with maximal intended concentric velocity, whereas the ST group maintained a slow (2-seconds) concentric velocity. At 6months, weight loss was~3kg in both groups. Both groups significantly improved function (gz=1.04-1.93), strength (gz=0.65-1.77), power (gz=0.66-0.85), contraction velocity (gz=0.65-1.12), and QoL (gz=0.62-1.54). Between-group differences in shoulder press velocity (−0.09m·s−1, gs=−0.95 [−1.63, −0.28]) and 6-minute walk test (−16.9m, gs=−0.51 [−1.16, 0.13]) favored the PT group. In conclusion,home-based resistance training and walking lead to significant improvements in functional and psychological measures in adults with severe obesity. In addition, considering the between-group effect sizes and their uncertainty, performing resistance exercises with maximal concentric speed is a simple adjustment to conventional resistance training that yields negligible negative effects but potentially large benefits on walking capacity and upper-limb contraction velocity.

Citation

Orange, S. T., Marshall, P., Madden, L. A., & Vince, R. V. (2020). Effect of home-based resistance training performed with or without a high-speed component in adults with severe obesity. Translational Sports Medicine, 3(1), 34-45. https://doi.org/10.1002/tsm2.115

• Journal Article Type: Article
• Acceptance Date: Sep 6, 2019
• Online Publication Date: Sep 12, 2019
• Publication Date: Jan 1, 2020
• Deposit Date: Sep 13, 2019
• Publicly Available Date: Sep 13, 2020
• Journal: Translational Sports Medicine
• Print ISSN: 2573-8488
• Peer Reviewed: Peer Reviewed
• Volume: 3
• Issue: 1
• Pages: 34-45
• DOI: https://doi.org/10.1002/tsm2.115
• Keywords: Exercise; Home-based exercise; Physical function; Power training; Resistance training; Severe obesity
• Public URL: https://hull-repository.worktribe.com/output/2665509
• Publisher URL: https://onlinelibrary.wiley.com/doi/abs/10.1002/tsm2.115
• Additional Information: Published: 2019-09-12
• Contract Date: Sep 13, 2019