Essay About Threshold Relationshippercent Hr Max And Lactate Threshold

Physiology of Sport & Exercise
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SLS340 78610 Physiology of Sport & ExerciseCompletion dates of experiments: 29/11/14Submission date: 15/12/14Lab 3: Aerobic Fitness Assessment   Description of Training ZoneBlood lactate threshold relationshipPercent HR max (%)Blood lactate (mmol/L)Perceived exertionRecovery<60<2.0EasyExtensive Aerobic60-751.0-3.0ComfortableIntensive Aerobic75-801.5-3.5UncomfortableThreshold80-902.0-4.0StressfulVo2 Max90-100>5.0Very stressfulAnaerobic95-100>7.0Maximal*Using the equation provided by (Tanaka et al. 2001) to get my participants max predicted Heart rate of 208-(0.7 x age) = 208- (0.7 x 21) = 193.3 (193bpm). [pic 1]1; A) Training zones are used to show which produces greater benefit for performance e.g. aerobic and anaerobic. Variables which help construct part of the training zone are; rate of perceived exertion (RPE), heart rate and blood lactate concentration. Standardized training zones have also been developed for coaches to be able to implement. Seiler and Kjerland (2006) suggest that the 1st transition involving the aerobic threshold results in the first increase in blood lactate (LT1) due to the start of the transition from aerobic to anaerobic, anaerobic threshold is when no further increase in blood lactate concentration occurs (LT2). Studies suggest two important ventilation changes which correspond with LT1 & LT2. Seiler and Kjerland aim towards pushing two methods of training intensity, the threshold model and the polarized training model. The threshold model relates to the information given above around the first and second blood lactate threshold and polarized training suggests a high amount of training done pre (before) first lactate threshold as well as a quantity of training occurring between 90-100% of the persons VO2 max. Due to peoples individual responses to training it is very hard to have one specific distribution of training intensities for everyone. Evidence given my Seiler and Kjerland suggested large proportion of training completed under the lactate threshold and higher than the 2nd threshold but not in the middle intensity. The ratio of “75/5/20”for the distribution of training intensity across the three zones has been argued to be the optimal distribution for high performance endurance athletes.