The Dutch Central Bureau of Statistics, for example, has set the cut-off level for the nominal definition of having burnout on an Emotional Exhaustion subscore threshold of >17.68 points (http://www.cbs.nl, http://www.tno.nl/downloads/Rapport NEA 2010.pdf).
Since there's not a single item on the MBTI extraversion-introversion dimension that mentions being introspective or reflective, even the MBTI doesn't measure Jung's original conceptualization of the term! 5. To be sure, extraverts also get drained by too many social interactions (even though their threshold for exhaustion during rewarding social interactions is higher).
22 A revised version was presented as International Consensus Criteria (the ICC-2011 Criteria) for ME, 23 claiming to be a selective case definition for identification of patients with neuroimmune exhaustion with a pathologically low threshold of fatigability and symptom flare after exertion.
Muscle adapts to stimuli above thresholds (energetic emptying > exhaustion).
Grade will be increased every 2 minutes until ventilatory threshold and then every minute until exhaustion or a symptom-limitation.
Also Hilberg et al. analyzed P-selectin expression as well as different subsets of PLAs in a study where they compared effects of an incremental step test until exhaustion with those of 45 minutes at 90% of the IAT (individual anaerobic threshold, a threshold concept taking into account the rate of decrease of lactate concentration after the end of an incremental exercise test) [ 71].
Also, you need a good pain threshold - you must be able to withstand extreme pain and exhaustion.
The children were also submitted to cardiopulmonary tests to determine the VO2peak, ventilatory anaerobic threshold (VAT), exercise time at VAT (tVAT) and time-to-exhaustion, according to a previous description [ 18].
And in one of the largest studies of burnout among social workers in the UK conducted by Community Care, 73% of the respondents reported levels of emotional exhaustion so high that the lead researcher said it was above the cut-off threshold to be considered at risk of burnout.
Indirect calorimetry showed that the lactate threshold, as determined by a sudden increase in VCO2 (RER>1), occurred immediately before Myog-deleted mice reached exhaustion, further suggesting that they were able to buffer H+, or generate less H+, prior to exhaustion.
