השוואת שיטות

	VO2 Max (פרוטוקול ברוס)	התאוששות קצב הלב	סף חומצה לקטית (OBLA)
תחום	מדעי הספורט	מדעי הספורט	מדעי הספורט
משפחה	Hypothesis test	Hypothesis test	Hypothesis test
שנת המקור	1963	1999	1973
הוגה השיטה	Robert Bruce	Cleveland Clinic Group	Klaus Wasserman
סוג	graded maximal exercise test	exercise recovery test	incremental blood sampling test
מקור מכונן	Bruce, R. A. (1963). Evaluation of functional capacity and exercise tolerance of cardiac patients. Modern Concepts of Cardiovascular Disease, 32(4), 1-4.	Cole, C. R., Blackstone, E. H., Pashkow, F. J., Snader, C. E., & Lauer, M. S. (1999). Heart-rate recovery immediately after exercise as a predictor of mortality. New England Journal of Medicine, 341(18), 1351-1357.	Wasserman, K., Whipp, B. J., Koyal, S. N., & Beaver, W. L. (1973). Anaerobic threshold and respiratory gas exchange during exercise. Journal of Applied Physiology, 35(2), 236-243.
כינויים	maximal aerobic capacity, aerobic power, cardiorespiratory fitness	HRR, heart rate variability recovery, parasympathetic tone, autonomic recovery	OBLA, anaerobic threshold, lactate turnpoint, maximal lactate steady state
קשורות	5	5	5
תקציר	VO2 max represents the maximum amount of oxygen a person can utilize during intense exercise, measured in millilitres of oxygen per kilogram of body weight per minute (ml/kg/min). Developed by Robert Bruce in 1963, the Bruce Protocol is a graded maximal exercise test on a motorized treadmill that incrementally increases speed and incline until the subject reaches volitional exhaustion. This test is a gold standard in clinical and sports medicine for assessing cardiorespiratory fitness and aerobic capacity.	Heart rate recovery (HRR) is the decline in heart rate during the first minutes following maximal or submaximal exercise, reflecting the reactivation of parasympathetic (vagal) tone. Introduced as a clinical predictor by Cole and colleagues (1999), HRR serves as a non-invasive biomarker of cardiac autonomic function and overall cardiovascular health. A rapid decline in heart rate after exertion indicates efficient parasympathetic reactivation and healthy autonomic nervous system balance. Conversely, blunted HRR (slow heart rate recovery) is associated with increased mortality risk, autonomic dysfunction, and poor exercise tolerance.	Lactate threshold, also termed the onset of blood lactate accumulation (OBLA), is the exercise intensity at which blood lactate concentration increases rapidly and non-linearly. Initially defined by Klaus Wasserman in 1973, the concept describes the physiological transition from aerobic to anaerobic metabolism. As exercise intensity increases, lactate production and clearance remain balanced until a critical threshold is exceeded, after which lactate rapidly accumulates in the blood, signaling a shift toward anaerobic energy pathways. This parameter is crucial in endurance sports and clinical exercise assessment.