Effects of yoga interventions practised in heated and thermoneutral conditions on endothelium-dependent vasodilatation: The Bikram yoga heart study
| Autor: | Jitanan Laosiripisan, Hirofumi Tanaka, Ahmed Elmenshawy, Stacy D. Hunter |
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| Rok vydání: | 2017 |
| Předmět: |
Adult
Male medicine.medical_specialty Hot Temperature education Psychological intervention 030204 cardiovascular system & hematology Body fat percentage Vascular health 03 medical and health sciences 0302 clinical medicine Absorptiometry Photon Vascular Stiffness medicine.artery Hatha yoga medicine Humans Brachial artery Exercise Sedentary time Heat intolerance business.industry Yoga 030229 sport sciences General Medicine Middle Aged humanities Vasodilation Treatment Outcome Endothelium dependent vasodilatation Physical therapy Female Endothelium Vascular medicine.symptom business human activities |
| Zdroj: | Experimental physiology. 103(3) |
| ISSN: | 1469-445X |
| Popis: | NEW FINDINGS What is the central question of this study? Does the heated practice environment enhance the effects of Bikram yoga on endothelium-dependent vasodilatation in healthy, middle-aged adults? What is the main finding and its importance? The primary finding from this investigation is that the hatha yoga postures in the Bikram yoga series produce similar enhancements in endothelium-dependent vasodilatation in healthy, middle-aged adults regardless of environmental temperature. These findings highlight the efficacy of yoga postures in producing improvements in vascular health and downplay the necessity of the heated practice environment in inducing vascular adaptations. ABSTRACT We have previously documented improvements in endothelium-dependent vasodilatation with a Bikram (hot) yoga intervention in middle-aged adults. At present, the effect of environmental temperature in hot yoga on endothelial function is unknown. The purpose of this investigation was to determine the effects of Bikram yoga interventions performed in heated or thermoneutral conditions on endothelium-dependent vasodilatation. Fifty-two sedentary but apparently healthy adults aged 40-60 years were randomly assigned to one of three groups: Bikram yoga practised at 40.5°C (n = 19), Bikram yoga practised at 23°C (n = 14) or sedentary time control (n = 19). The yoga interventions consisted of 90 min Bikram yoga classes three times a week for 12 weeks. Endothelium-dependent vasodilatation was measured non-invasively using brachial artery flow-mediated dilatation (FMD). Body fat percentage determined via dual-energy X-ray absorptiometry was significantly lower in the hot yoga group after the intervention than in the thermoneutral yoga and control conditions. Brachial artery FMD increased (P |
| Databáze: | OpenAIRE |
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