OBLA

(redirected from Onset of Blood Lactate Accumulation)
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AcronymDefinition
OBLAOnset of Blood Lactate Accumulation
References in periodicals archive ?
HIIT: high-intensity interval training group; CON: control group; V[O.sub.2]max: maximal oxygen uptake; PTS: peak treadmill speed; OBLA: running speed associated with onset of blood lactate accumulation; RE: running economy measured at 12 km/h.
Thus, two intensities as determined by blood lactate concentration have been shown to be sufficient to cause organic changes and are therefore recommended to improve fitness: 1) intensity immediately before the increase in blood lactate in relation to the resting level, known as lactate threshold (LT) or aerobic threshold (10); 2) intensity at the maximal lactate steady state (MLSS) or at the onset of blood lactate accumulation (OBLA), i.e., highest intensity that can be identified as maintaining a maximum balance between lactate produced and released by muscle into the bloodstream and clearance rate during prolonged exercise (11).
The critical velocity was at first thought to correspond to a sustainable intensity and has been compared to parameters such as the maximal lactate steady state (the highest intensity that can be maintained without any drift in the blood lactate concentration) and the onset of blood lactate accumulation (intensity corresponding to a 4 [mmol x l.sup.-1] of blood lactate concentration during an incremental test) (Dekerle et al., 2006).
One such method (6) that has been around for approximately 50 years is the determination of lactate threshold via blood sampling, often referred to as onset of blood lactate accumulation (OBLA).
The other specific test was an incremental protocol used to determine the anaerobic threshold ([AnT.sub.BI]) and the onset of blood lactate accumulation (OBLA) using a ball thrower.