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Lactate inflection point (LIP) is the exercise intensity at which the blood concentration of lactate and/or lactic acid begins to increase rapidly. [1] It is often expressed as 85% of maximum heart rate or 75% of maximum oxygen intake. [2]
Anaerobic exercise is a type of exercise that breaks down glucose in the body without using oxygen; anaerobic means "without oxygen". [1] This type of exercise leads to a buildup of lactic acid. [1] In practical terms, this means that anaerobic exercise is more intense, but shorter in duration than aerobic exercise. [2] Fox and Haskell formula
3] is the concentration of bicarbonate in the blood [H 2 CO 3] is the concentration of carbonic acid in the blood; When describing arterial blood gas, the Henderson–Hasselbalch equation is usually quoted in terms of pCO 2, the partial pressure of carbon dioxide, rather than H 2 CO 3 concentration.
It increases hydrogen ion concentration tending to the state of acidemia or low pH. The result can be detected with high levels of lactate and low levels of bicarbonate. This is usually considered the result of illness but also results from strenuous exercise. The effect on pH is moderated by the presence of respiratory compensation.
[71] [72] [73] Two reviews noted a study where the average 24 hour urinary β-phenylacetic acid concentration among participants following just 30 minutes of intense exercise increased by 77% relative to baseline concentrations in resting control subjects; [71] [72] [73] the reviews suggest that phenethylamine synthesis sharply increases while ...
Cooper, an exercise enthusiast, was puzzled about why some people with good muscular strength were prone to perform poorly at activities such as long-distance running, swimming, and bicycling. He began using a bicycle ergometer to measure sustained performance in terms of a person's ability to use oxygen.
3 is determined by the concentration of the two released within the urine. [1] These mechanisms of secretion and reabsorption balance the pH of the bloodstream. [1] A restored acid-base balanced bloodstream thus leads to a restored acid-base balance throughout the entire body.
Cyclists may be trained and assessed by exercise physiologists to optimize performance. [1] Exercise physiology is the physiology of physical exercise. It is one of the allied health professions, and involves the study of the acute responses and chronic adaptations to exercise. Exercise physiologists are the highest qualified exercise ...