Endurance and Muscle Lactic Acid of Swimming Jack Mackerel

L-lactic acid's improvement of swimming endurance in mice.

The aim of this study was to investigate the effect of L-lactic acid on swimming endurance of mice. Mice (n = 50) were injected intraperitoneally with saline, then with L-lactic acid (either 25 mg/kg or 50 mg/kg body weight), then after 2 days with the same doses of glucose, and after another 2 days again with L-lactic acid at the same doses. Swimming times to exhaustion were determined at 30 m...

Lactic Acid Fermentation, Muscle

Respiratory muscle training improves swimming endurance at depth.

Respiratory muscle training (RMT) has been shown to improve divers swimming endurance at 4 feet of depth; however, its effectiveness at greater depths, where gas density and the work of breathing are substantially elevated has not been studied. The purpose of this study was to examine the effects of resistance respiratory muscle training (RRMT) on respiratory function and swimming endurance at ...

Lactic Acid in Fish and Crustacean Muscle

THE amount of lactic acid developed in muscular tissue during rigor mortis or during artificially produced rigor is fairly constant for any one type of muscle and has a characteristic value for any one species. This amount is determined by (1) the amount of glycogen or other carbohydrate precursor available for its formation, and (2) the buffering capacity of the tissue, since an acid reaction ...

Effects of temperature on sustained swimming performance and swimming kinematics of the chub mackerel Scomber japonicus.

The effects of a 6 degrees C difference in water temperature on maximum sustained swimming speed, swimming energetics and swimming kinematics were measured in the chub mackerel Scomber japonicus (Teleostei: Scombridae), a primarily coastal, pelagic predator that inhabits subtropical and temperate transition waters of the Atlantic, Pacific and Indian Oceans. New data for chub mackerel acclimated...