Long-term swimming in an inescapable stressful environment attenuates the stimulatory effect of endurance swimming on duodenal calcium absorption in rats

• DOI: 10.1007/s12576-011-0168-5
• Publication Date: 2011-08-20T05:31:29Z
• Authors: Narattaphol Charo...; Jarinthorn Teerap...; Sarawut Lapmanee; Nitita Dorkkam; Nateetip Krishnamra; Jantarima Charoen...
• Keywords: Transcellular; Endurance Training

Endurance swimming is known to increase duodenal calcium absorption in normal rats and bone strength estrogen-deficient rats. Because the stress resulting from forced training often attenuates stimulatory effect of exercise, an inescapable chamber should reveal both positive exercise negative stress. In work reported herein, showed no signs during 2 weeks training. However, response gradually developed thereafter peaked at 6 7. for weeks, transcellular transport was enhanced ~2-fold. contrast, reduced 8 consistent with absence swimming-induced upregulation transporter genes 8-week group. conclusion, prolonged hindered on absorption, thus endurance be performed without or retain its beneficial metabolism.