anaerobic threshold

Also found in: Dictionary, Thesaurus, Legal, Financial, Acronyms, Encyclopedia.
Related to anaerobic threshold: VO2 max

anaerobic threshold

The level above which pyruvate—an intermediate product of anaerobic metabolism—is produced faster than it can be used aerobically. Unused pyruvate splits into lactate (lactic acid) and hydrogen ions; continued exercise above the anaerobic threshold results in accumulation of these ions (acidosis), causing exhaustion and intramuscular pain.

an·aer·o·bic thresh·old

(an'ār-ō'bik thresh'ōld)
Archaic term to describe the onset of blood lactate accumulation estimated by using either ventilatory measures (ventilatory threshold)or blood lactate measures (lactate threshold [q.v.]).

anaerobic threshold

The point at which increased carbon dioxide production and minute ventilation result from increased levels of lactic acid during exercise.
See also: threshold

anaerobic threshold (anˈ··rōˑ·bik threshˑ·hōld),

n at increasing speeds or intensity levels, the point above which the muscles derive their energy from nonoxygenic rather than oxygenic sources during exercise. The body can only operate above this threshold for a short period of time, such as when sprinting, before lactic acid builds up in the muscles.
References in periodicals archive ?
Comparison of prolonged exercise tests at the individual anaerobic threshold and the fixed anaerobic threshold of 4 mmol/l lactate.
The exact point of anaerobic threshold is an important functional physiologic demarcation because the physiologic responses to exercise are different above the anaerobic threshold as compared with below the anaerobic threshold.
Davis JA, Frank MH, Whipp BJ, Wasserman K: Anaerobic threshold alterations caused by endurance training in middle-age men.
Anaerobic threshold in children: determination from saliva analysis in field tests.
Other authors have named these points as aerobic and anaerobic thresholds (29).
2006), a cardiovascular adaptation process determined by the work within the anaerobic threshold zone.
Note that this individual has a very low anaerobic threshold (ATI), shown here at the elbow of the curve at about 60% of their MHR.
KEYWORDS: aerobic, anaerobic threshold, economy, plyometrics, resistance, strength.
On the other hand, our other study showed that the anaerobic threshold of CP subjects with lower physical activities decreased.
Or, an instructor may teach a "multi peak" class in which the goal is to push the anaerobic threshold a number of times throughout the duration of the class.