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Case studies in physiology: Impact of a long-distance hike on the Pacific Crest Trail on arterial function and body composition in a highly fit young male Pubblico Deposited
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The Pacific Crest Trail (PCT) is a 4265-km hiking trail that extends from the US-Mexican border to the US-Canadian border through the mountain ranges of western North America. Individuals who hike the entire length of the trail in one season (4-6 months) perform long daily exercise durations while exposed to extreme environmental temperatures, high altitudes, intense solar radiation, and the consumption of calorie-rich, nutrient-poor diets. This case study reports changes in arterial function and body composition in a subject before and after a 112-day long-distance hike of the PCT. Brachial artery flow-mediated dilation, a measure of vascular endothelial function, decreased from: 6.97% to 5.00%. Carotid-femoral pulse wave velocity, a measure of aortic stiffness, increased from 5.39 to 5.76 m/s. Dual-energy x-ray absorptiometry scans detected no major changes in total-body bone mineral density, fat mass, or lean mass, although there were minor, unfavorable changes in some subregions of the body. It is important for individuals completing a long-distance hike to be aware of the potential deleterious changes associated with large volumes of exercise and consuming a high-calorie, low-quality diet.
- Creator
- Date Issued
- 2021
- Academic Affiliation
- Journal Title
- Journal Issue/Number
- 5
- Journal Volume
- 9
- Ultima modifica
- 2022-08-18
- Resource Type
- Dichiarazione dei diritti
- DOI
- ISSN
- 2051-817X
- Language
- License
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Physiological_Reports_-_2021_-_Heinbockel_-_Case_studies_in_physiology_Impact_of_a_long_distance_hike_on_the_Pacific_Crest.pdf | 2022-08-18 | Pubblico | Scaricare |