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ERIC Number: EJ914212
Record Type: Journal
Publication Date: 2010-Dec
Pages: 6
Abstractor: As Provided
Reference Count: 37
ISSN: ISSN-0270-1367
Effect of a Prolonged Altitude Expedition on Glucose Tolerance and Abdominal Fatness
Chen, Mu-Tsung; Lee, Wen-Chih; Chen, Shih-Chang; Chen, Chiu-Chou; Chen, Chung-Yu; Lee, Shin-Da; Jensen, Jorgen; Kuo, Chia-Hua
Research Quarterly for Exercise and Sport, v81 n4 p472-477 Dec 2010
In the present study, we investigated the effect of a long-term mountain expedition on glucose tolerance and insulin action. Twelve registered mountaineers ages 31 years (SD = 1.1) participated in a 25-day expedition at a 2,200-3,800-m altitude with an average duration of 8 hr per day. Arterial oxygen saturation (SaO[subscript 2]) was substantially reduced during hiking. Glucose tolerance and insulin responses were measured prior to and twice during the expedition period. Maximal oxygen consumption increased from 43.0 [plus or minus] 2.7 to 49.1 [plus or minus] 2.2 mL/kg/min. Percentage of body fat decreased from 19.4 [plus or minus] 6.8% to 16.9 [plus or minus] 5.9%. The area under the curves for insulin and glucose during the oral glucose tolerance test were also reduced in Days 3 and 25. The present study demonstrated that altitude hiking activity is an effective lifestyle intervention to improve insulin action. (Contains 4 tables and 2 figures.)
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Publication Type: Journal Articles; Reports - Evaluative
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A