Beta-endorphin and sprint training.
Male, Wistar rats were sprint trained using a high intensity, interval type, treadmill running protocol. Sprint training produced a significant decrease in plasma beta-endorphin levels. Conversely, animals who performed a high intensity acute run displayed significant increases in the concentration of plasma beta-endorphin which may be stress-related. Neither training nor acute running had any significant effect on the beta-endorphin levels of the pituitary, cortex, posterior or anterior hypothalamus.
D000818:Animals; D001923:Brain Chemistry; D002950:Citrate (si)-Synthase / Q000302:isolation & purification; D004723:Endorphins / Q000097:blood / Q000378:metabolism*; D008297:Male; D009132:Muscles / Q000201:enzymology; D010806:Physical Education and Training; D010902:Pituitary Gland / Q000378:metabolism; D051381:Rats; D011919:Rats, Inbred Strains; D012420:Running; D001615:beta-Endorphin
D004723:Endorphins; D001615:beta-Endorphin; D002950:Citrate (si)-Synthase