Document Detail


Activity patterns of obese adults with type 2 diabetes in the look AHEAD study.
MedLine Citation:
PMID:  20386337     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
PURPOSE: This study describes baseline physical activity (PA) patterns of individuals with type 2 diabetes mellitus (T2DM) enrolled in the multicenter Look AHEAD Study using an objective measure of PA (accelerometry).
METHODS: A total of 2240 participants (age = 59.0 ± 6.8 yr and body mass index (BMI) = 36.5 ± 6.0 kg·m−²) with T2DM provided data for this substudy. Participants were instructed to wear an accelerometer during waking hours for 7 d. Accelerometry data were analyzed to identify periods meeting the criteria of ≥3 MET·min−¹ for Q10 min(moderate- to vigorous-intensity PA (MVPA)) and ≥6 MET·min−¹ for ≥10 min (vigorous-intensity PA (VPA)). Self-reported PA was also assessed with a questionnaire. Accelerometry and self-reported PA data were compared across categories of BMI, sex, race, age, fitness, diabetes medication usage, and history of cardiovascular disease.
RESULTS: Self-reported PA was lower at higher levels of BMI, was higher in males, was lowest for African-American/black, and was positively associated with fitness. Multivariate analyses for accelerometer-measured MVPA and VPA showed that more PA bouts per day, minutes per bout, METs per minute, and MET-minutes were associated with higher fitness. For MVPA, bouts per day were higher in men, and METs per minute were higher in women. For VPA, bouts per day was positively associated with increasing age and differed by race/ethnicity. METs per minute were significantly lower at higher levels of BMI and in women. Diabetes medication usage and history of cardiovascular disease were not associated with patterns of PA examined.
CONCLUSIONS: Results provide information on factors that contribute to PA patterns in adults with T2DM when PA is assessed using both objective and subjective measures. These data may inform interventions to improve PA in adults with T2DM
Authors:
John M Jakicic; Edward Gregg; William Knowler; David E Kelley; Wei Lang; Gary D Miller; F Xavier Pi-Sunyer; Judith G Regensteiner; W Jack Rejeski; Paul Ridisl; Michael P Walkup; Donna L Wolf
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Publication Detail:
Type:  Journal Article; Multicenter Study; Randomized Controlled Trial    
Journal Detail:
Title:  Medicine and science in sports and exercise     Volume:  42     ISSN:  1530-0315     ISO Abbreviation:  Med Sci Sports Exerc     Publication Date:  2010 Nov 
Date Detail:
Created Date:  2010-10-26     Completed Date:  2011-02-03     Revised Date:  2011-11-01    
Medline Journal Info:
Nlm Unique ID:  8005433     Medline TA:  Med Sci Sports Exerc     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1995-2005     Citation Subset:  IM; S    
Affiliation:
Department of Health and Physical Activity, Physical Activity and Weight Management Research Center, University of Pittsburgh, Pittsburgh, PA 15260, USA. jjakicic@pitt.edu
Data Bank Information
Bank Name/Acc. No.:
ClinicalTrials.gov/NCT00017953
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MeSH Terms
Descriptor/Qualifier:
Actigraphy
Aged
Body Mass Index
Diabetes Mellitus, Type 2*
Female
Humans
Male
Middle Aged
Motor Activity / physiology*
Obesity*
Questionnaires

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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