Please use this identifier to cite or link to this item: https://ir.sc.mahidol.ac.th/handle/123456789/246
Title: Physical activity and exercise affect intestinal calcium absorption: a perspective review
Authors: Narattaphol Charoenphandhu
Keywords: Calcium;Duodenum;Endurance exercise;Paracellular transport;Strenuous exercise;Transcellular transport
Issue Date: 2007
Publisher: The Sports Science Society of Thailand (SSST)
Citation: Journal of Sports Science and Technology. 7, 1-2 (2007), 171-181
Abstract: Moderate endurance exercise and physical activity have a positive effect on calcium metabolism and bone by increasing bone mineral density and reducing urinary calcium loss, whereas immobilization has the opposite effects. However, little is known regarding effects of exercise on the intestinal calcium absorption, which is the sole source of calcium for bone formation. Intestinal calcium absorption affects bone mass and bone strength both of which directly contribute to exercise performance. Previous investigations in humans and rats suggested that endurance exercise stimulated intestinal calcium absorption in vivo; however, the underlying mechanisms remain controversial. On the other hand, immobilization decreased the intestinal calcium absorption partly by reducing the serum level of 1,25-dihydroxyvitamin D3, one of the major calcium-regulating hormones, and the expression of several calcium transporter genes. Further studies deserve to demonstrate in depth the molecular mechanisms of enhanced calcium absorption following different modes of exercise training, such as swimming and running, in different sex and/or age groups. The obtained knowledge would help sport scientists and physicians to design appropriate calcium supplementation and exercise training regime for athletes.
URI: http://ir.sc.mahidol.ac.th/handle/123456789/246
ISSN: 1513-7201
Appears in Collections:COE: National Journal Publications
Physiology: National Journal Publications

Files in This Item:
There are no files associated with this item.


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.