The association of cardiorespiratory fitness to health independent of adiposity depends upon its expression
| Autor: | Sigurbjörn Á. Arngrímsson, Elvar Smari Sævarsson, Thorarinn Sveinsson, Erlingur Johannsson, Kristjan Thor Magnusson |
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| Rok vydání: | 2015 |
| Předmět: |
Male
Aging medicine.medical_specialty Adolescent Physiology Epidemiology medicine.medical_treatment 030209 endocrinology & metabolism Biology Body fat percentage 03 medical and health sciences Young Adult 0302 clinical medicine Internal medicine Genetics medicine Humans Insulin 030212 general & internal medicine Young adult Triglycerides Adiposity Metabolic risk Public Health Environmental and Occupational Health Cardiorespiratory fitness Anthropometry Endocrinology Cholesterol Cardiorespiratory Fitness Health Body Composition Female hormones hormone substitutes and hormone antagonists Homeostasis Lipoprotein |
| Zdroj: | Annals of human biology. 43(3) |
| ISSN: | 1464-5033 |
| Popis: | The strong relation between cardiorespiratory fitness (CRF) and adiposity renders their independent associations to metabolic risk factors difficult to ascertain.To determine the associations of CRF and CRF relative to fat-free mass (CRFFFM) to total cholesterol, high-density lipoprotein, low-density lipoprotein, triglycerides, glucose, insulin and homeostasis model assessment (HOMA) and distinguish these relations from the association to adiposity.Anthropometrics, body fat percentage (%Fat) and fat-free mass (from dual energy X-ray absorptiometry) were measured in 127 (66 females) 17 and 23 year-olds. CRF from a maximal workload on a graded bicycle test and fasting blood samples were obtained.CRF was significantly related to total cholesterol, triglycerides, insulin and HOMA (r = -0.24 to -0.49, p 0.03), as were all adiposity measures (r = 0.21-0.53, p 0.05). Correcting CRF for %Fat rendered the relation to metabolic risk factors non-significant (p = 0.09-0.21); however, CRFFFM was significantly related to the metabolic risk factors (r = -0.25 to -0.32, p 0.02).CRFFFM, where adiposity has been removed, is associated with metabolic risk factors, whereas CRF, which is related to adiposity, is not after adjustment for fatness. Previously, independent effects of CRF on health may have been underestimated by using an expression of CRF strongly related to the adiposity measures. |
| Databáze: | OpenAIRE |
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