A long‐term intensive lifestyle intervention and physical function: The look AHEAD Movement and Memory Study. (29th November 2014)

• Record Type: Journal Article
• Authors: Houston, Denise K.; Leng, Xiaoyan; Bray, George A.; Hergenroeder, Andrea L.; Hill, James O.; Jakicic, John M.; Johnson, Karen C.; Neiberg, Rebecca H.; Marsh, Anthony P.; Rejeski, W. Jack; Kritchevsky, Stephen B.; for the Action for Health In Diabetes (Look AHEAD) Movement and Memory Ancillary Study Research Group
• Is Part Of: Obesity. Volume 23:Number 1(2015:Jan.)
• Page Start: 77
• Page End: 84
• Publication Date: 2014-11-29
• Subjects: Obesity -- Periodicals; 616.398005
• DOI: 10.1002/oby.20944
• Languages: English
• ISSNs: 1930-7381

Abstract

<abstract abstract-type="main"> <title> <x xml:space="preserve">Abstract</x> </title> <sec id="oby20944-sec-0001" sec-type="section"> <title>Objective</title> <p>To assess the long‐term effects of an intensive lifestyle intervention on physical function using a randomized post‐test design in the Look AHEAD trial.</p> </sec> <sec id="oby20944-sec-0002" sec-type="section"> <title>Methods</title> <p>Overweight and obese (BMI ≥ 25 kg m<sup>−2</sup>) middle‐aged and older adults (aged 45‐76 years at enrollment) with type 2 diabetes (<italic>n</italic> = 964) at four clinics in Look AHEAD, a trial evaluating an intensive lifestyle intervention (ILI) designed to achieve weight loss through caloric restriction and increased physical activity compared to diabetes support and education (DSE), underwent standardized assessments of performance‐based physical function including an expanded short physical performance battery (SPPB<sub>exp</sub>), 20‐m and 400‐m walk, and grip and knee extensor strength 8 years post‐randomization, during the trial's weight maintenance phase.</p> </sec> <sec id="oby20944-sec-0003" sec-type="section"> <title>Results</title> <p>Eight years post‐randomization, individuals randomized to ILI had better SPPB<sub>exp</sub> scores [adjusted mean (SE) difference: 0.055 (0.022), <italic>P</italic> = 0.01] and faster 20‐m and 400‐m walk speeds [0.032 (0.012) m s<sup>−1</sup>, <italic>P</italic> = 0.01, and 0.025 (0.011) m s<sup>−1</sup>, <italic>P</italic> = 0.02, respectively] compared to those randomized to DSE. Achieved weight loss greatly attenuated the group differences in physical function, and the intervention effect was no longer significant.</p> </sec> <sec id="oby20944-sec-0004" sec-type="section"> <title>Conclusions</title> <p>An intensive lifestyle intervention has long‐term benefits for mobility function in overweight and obese middle‐aged and older individuals with type 2 diabetes.</p> </sec> </abstract>