Physical Activity, Energy Expenditure and Fitness: An Evolutionary Perspective
| Autor: | S B Eaton, Loren Cordain, Robert W. Gotshall, S B Eaton rd |
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| Rok vydání: | 1998 |
| Předmět: |
Male
Gerontology Natural selection business.industry Energy (esotericism) Perspective (graphical) Physical fitness Niche Evolutionary medicine Hominidae Physical Therapy Sports Therapy and Rehabilitation Biology Biological Evolution Stone Age Agricultural revolution Physical Fitness Evolutionary biology Animals Humans Female Orthopedics and Sports Medicine Energy Metabolism business Exercise |
| Zdroj: | International Journal of Sports Medicine. 19:328-335 |
| ISSN: | 1439-3964 0172-4622 |
| DOI: | 10.1055/s-2007-971926 |
| Popis: | The model for human physical activity patterns was established not in gymnasia, athletic fields, or exercise physiology laboratories, but by natural selection acting over eons of evolutionary experience. This paper examines how evolution has determined the potential for contemporary human performance, and advances the experience of recently-studied hunter-gatherers as the best available (although admittedly imperfect) indicator of the physical activity patterns for which our genetically determined biology was originally selected. From the emergence of the genus Homo, over 2 million years ago (MYA), until the agricultural revolution of roughly 10000 years ago our ancestors were hunter-gatherers, so the adaptive pressures inherent in that environmental niche have exerted defining influence on human genetic makeup. The portion of our genome that determines basic anatomy and physiology has remained relatively unchanged over the past 40 000 years. Thus, the complex interrelationship between energy intake, energy expenditure and specific physical activity requirements for current humans remains very similar to that originally selected for Stone Age men and women who lived by gathering and hunting. Research investigating optimal physical activity for human health and performance can be guided by understanding the evolution of physical activity patterns in our species. |
| Databáze: | OpenAIRE |
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