Increased physical activity improves aerobic fitness, but not functional walking capacity, in severely obese subjects participating in a lifestyle intervention.

Increased physical activity improves aerobic fitness, but not functional walking capacity, in severely obese subjects participating in a lifestyle intervention. Aadland, E., Jepsen, R., Andersen, J. R., & Anderssen, S. A. Journal of rehabilitation medicine, 45(10):1071–7, November, 2013. Publisher: FOUNDATION REHABILITATION INFORMATION, TRADGARDSGATAN 14, UPPSALA, SE-753 09, SWEDEN

Paper doi abstract bibtex

OBJECTIVE: To determine the relationship between change in physical activity level and change in directly measured maximal aerobic fitness in severely obese subjects participating in a 1-year lifestyle intervention, and to determine whether change in 6-min walk test (6 MWT) could be used as an indicator of change in aerobic fitness. METHODS: Complete data on aerobic fitness (maximal oxygen consumption (VO2max) and time to exhaustion on the VO2max test), 6 MWT, and physical activity (Actigraph GT1M accelerometer) were obtained for 21 subjects (mean age 42.6 years (standard deviation (SD) 11.0 years); mean body mass index 39.6 (SD 4.5) kg/m(2)). Multiple linear regression (controlling for change in body mass index) was used to analyse the relationships for: (i) changes in physical activity vs aerobic fitness and change in 6 MWT; and (ii) changes in aerobic fitness vs 6 MWT. RESULTS: Change in physical activity level was related to VO2max and time to exhaustion (partial r \textgreater 0.63, p \textless 0.003). No significant relationships were found between changes in aerobic fitness and 6 MWT (partial r \textless 0.22, p \textgreater 0.351) or between changes in physical activity level and 6 MWT (partial r = 0.15, p = 0.531). CONCLUSION: Increased physical activity level over 1 year resulted in increased aerobic fitness in severely obese subjects. Although the sample size was small, these results suggest that change in 6 MWT might not be a good indicator of maximal change in aerobic fitness in this population.

@article{aadland_increased_2013,
	title = {Increased physical activity improves aerobic fitness, but not functional walking capacity, in severely obese subjects participating in a lifestyle intervention.},
	volume = {45},
	issn = {1651-2081},
	url = {http://apps.webofknowledge.com/full_record.do?product=UA&search_mode=Refine&qid=4&SID=W2MRaa54ZieMZzGmOto&page=1&doc=31&cacheurlFromRightClick=no},
	doi = {10.2340/16501977-1205},
	abstract = {OBJECTIVE: To determine the relationship between change in physical activity level and change in directly measured maximal aerobic fitness in severely obese subjects participating in a 1-year lifestyle intervention, and to determine whether change in 6-min walk test (6 MWT) could be used as an indicator of change in aerobic fitness.

METHODS: Complete data on aerobic fitness (maximal oxygen consumption (VO2max) and time to exhaustion on the VO2max test), 6 MWT, and physical activity (Actigraph GT1M accelerometer) were obtained for 21 subjects (mean age 42.6 years (standard deviation (SD) 11.0 years); mean body mass index 39.6 (SD 4.5) kg/m(2)). Multiple linear regression (controlling for change in body mass index) was used to analyse the relationships for: (i) changes in physical activity vs aerobic fitness and change in 6 MWT; and (ii) changes in aerobic fitness vs 6 MWT.

RESULTS: Change in physical activity level was related to VO2max and time to exhaustion (partial r {\textgreater} 0.63, p {\textless} 0.003). No significant relationships were found between changes in aerobic fitness and 6 MWT (partial r {\textless} 0.22, p {\textgreater} 0.351) or between changes in physical activity level and 6 MWT (partial r = 0.15, p = 0.531).

CONCLUSION: Increased physical activity level over 1 year resulted in increased aerobic fitness in severely obese subjects. Although the sample size was small, these results suggest that change in 6 MWT might not be a good indicator of maximal change in aerobic fitness in this population.},
	number = {10},
	urldate = {2014-12-03},
	journal = {Journal of rehabilitation medicine},
	author = {Aadland, Eivind and Jepsen, Randi and Andersen, John Roger and Anderssen, Sigmund Alfred},
	month = nov,
	year = {2013},
	pmid = {23995892},
	note = {Publisher: FOUNDATION REHABILITATION INFORMATION, TRADGARDSGATAN 14, UPPSALA, SE-753 09, SWEDEN},
	keywords = {Accelerometry, Adult, Anthropometry, Exercise, Exercise Test, Exercise Therapy, Exercise Tolerance, Exercise Tolerance: physiology, Exercise: physiology, Female, Health Promotion, Humans, Male, Middle Aged, Motor Activity, Motor Activity: physiology, Obesity, Morbid, Obesity, Morbid: physiopathology, Obesity, Morbid: therapy, Physical Fitness, Physical Fitness: physiology, Risk Reduction Behavior, Walking, Walking: physiology},
	pages = {1071--7},
}

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A."],"bibdata":{"bibtype":"article","type":"article","title":"Increased physical activity improves aerobic fitness, but not functional walking capacity, in severely obese subjects participating in a lifestyle intervention.","volume":"45","issn":"1651-2081","url":"http://apps.webofknowledge.com/full_record.do?product=UA&search_mode=Refine&qid=4&SID=W2MRaa54ZieMZzGmOto&page=1&doc=31&cacheurlFromRightClick=no","doi":"10.2340/16501977-1205","abstract":"OBJECTIVE: To determine the relationship between change in physical activity level and change in directly measured maximal aerobic fitness in severely obese subjects participating in a 1-year lifestyle intervention, and to determine whether change in 6-min walk test (6 MWT) could be used as an indicator of change in aerobic fitness. METHODS: Complete data on aerobic fitness (maximal oxygen consumption (VO2max) and time to exhaustion on the VO2max test), 6 MWT, and physical activity (Actigraph GT1M accelerometer) were obtained for 21 subjects (mean age 42.6 years (standard deviation (SD) 11.0 years); mean body mass index 39.6 (SD 4.5) kg/m(2)). Multiple linear regression (controlling for change in body mass index) was used to analyse the relationships for: (i) changes in physical activity vs aerobic fitness and change in 6 MWT; and (ii) changes in aerobic fitness vs 6 MWT. RESULTS: Change in physical activity level was related to VO2max and time to exhaustion (partial r \\textgreater 0.63, p \\textless 0.003). No significant relationships were found between changes in aerobic fitness and 6 MWT (partial r \\textless 0.22, p \\textgreater 0.351) or between changes in physical activity level and 6 MWT (partial r = 0.15, p = 0.531). CONCLUSION: Increased physical activity level over 1 year resulted in increased aerobic fitness in severely obese subjects. Although the sample size was small, these results suggest that change in 6 MWT might not be a good indicator of maximal change in aerobic fitness in this population.","number":"10","urldate":"2014-12-03","journal":"Journal of rehabilitation medicine","author":[{"propositions":[],"lastnames":["Aadland"],"firstnames":["Eivind"],"suffixes":[]},{"propositions":[],"lastnames":["Jepsen"],"firstnames":["Randi"],"suffixes":[]},{"propositions":[],"lastnames":["Andersen"],"firstnames":["John","Roger"],"suffixes":[]},{"propositions":[],"lastnames":["Anderssen"],"firstnames":["Sigmund","Alfred"],"suffixes":[]}],"month":"November","year":"2013","pmid":"23995892","note":"Publisher: FOUNDATION REHABILITATION INFORMATION, TRADGARDSGATAN 14, UPPSALA, SE-753 09, SWEDEN","keywords":"Accelerometry, Adult, Anthropometry, Exercise, Exercise Test, Exercise Therapy, Exercise Tolerance, Exercise Tolerance: physiology, Exercise: physiology, Female, Health Promotion, Humans, Male, Middle Aged, Motor Activity, Motor Activity: physiology, Obesity, Morbid, Obesity, Morbid: physiopathology, Obesity, Morbid: therapy, Physical Fitness, Physical Fitness: physiology, Risk Reduction Behavior, Walking, Walking: physiology","pages":"1071–7","bibtex":"@article{aadland_increased_2013,\n\ttitle = {Increased physical activity improves aerobic fitness, but not functional walking capacity, in severely obese subjects participating in a lifestyle intervention.},\n\tvolume = {45},\n\tissn = {1651-2081},\n\turl = {http://apps.webofknowledge.com/full_record.do?product=UA&search_mode=Refine&qid=4&SID=W2MRaa54ZieMZzGmOto&page=1&doc=31&cacheurlFromRightClick=no},\n\tdoi = {10.2340/16501977-1205},\n\tabstract = {OBJECTIVE: To determine the relationship between change in physical activity level and change in directly measured maximal aerobic fitness in severely obese subjects participating in a 1-year lifestyle intervention, and to determine whether change in 6-min walk test (6 MWT) could be used as an indicator of change in aerobic fitness.\n\nMETHODS: Complete data on aerobic fitness (maximal oxygen consumption (VO2max) and time to exhaustion on the VO2max test), 6 MWT, and physical activity (Actigraph GT1M accelerometer) were obtained for 21 subjects (mean age 42.6 years (standard deviation (SD) 11.0 years); mean body mass index 39.6 (SD 4.5) kg/m(2)). Multiple linear regression (controlling for change in body mass index) was used to analyse the relationships for: (i) changes in physical activity vs aerobic fitness and change in 6 MWT; and (ii) changes in aerobic fitness vs 6 MWT.\n\nRESULTS: Change in physical activity level was related to VO2max and time to exhaustion (partial r {\\textgreater} 0.63, p {\\textless} 0.003). No significant relationships were found between changes in aerobic fitness and 6 MWT (partial r {\\textless} 0.22, p {\\textgreater} 0.351) or between changes in physical activity level and 6 MWT (partial r = 0.15, p = 0.531).\n\nCONCLUSION: Increased physical activity level over 1 year resulted in increased aerobic fitness in severely obese subjects. Although the sample size was small, these results suggest that change in 6 MWT might not be a good indicator of maximal change in aerobic fitness in this population.},\n\tnumber = {10},\n\turldate = {2014-12-03},\n\tjournal = {Journal of rehabilitation medicine},\n\tauthor = {Aadland, Eivind and Jepsen, Randi and Andersen, John Roger and Anderssen, Sigmund Alfred},\n\tmonth = nov,\n\tyear = {2013},\n\tpmid = {23995892},\n\tnote = {Publisher: FOUNDATION REHABILITATION INFORMATION, TRADGARDSGATAN 14, UPPSALA, SE-753 09, SWEDEN},\n\tkeywords = {Accelerometry, Adult, Anthropometry, Exercise, Exercise Test, Exercise Therapy, Exercise Tolerance, Exercise Tolerance: physiology, Exercise: physiology, Female, Health Promotion, Humans, Male, Middle Aged, Motor Activity, Motor Activity: physiology, Obesity, Morbid, Obesity, Morbid: physiopathology, Obesity, Morbid: therapy, Physical Fitness, Physical Fitness: physiology, Risk Reduction Behavior, Walking, Walking: physiology},\n\tpages = {1071--7},\n}\n\n","author_short":["Aadland, E.","Jepsen, R.","Andersen, J. 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