![]() ![]() The results support the validity of mental and physical fatigue subscales and the dropping of the "loss of interest" item in the 11-item version of the fatigue scale. ![]() The Chalder Fatigue Scale Many of the problems with the scale are obvious upon inspection, and so it is. Factor 4 was correlated with interview and self-rated measures of depression. We have replicated the submission below, to view it in its original format please see the PDF file attached.- Submission to the public review on common data elements for ME/CFS: Problems with the Chalder Fatigue Questionnaire. Factor 3 was inversely correlated with grip strength, peak VO2, peak heart rate, and peak functional work capacity. Factor 2 was correlated with difficulties in maintaining sleep. Factor 1 was correlated with subjective everyday cognitive difficulties, concentration difficulties, and a deficit in paired associate learning. There were four factors of fatigue explaining 67% of the total variance. We examined the constructs of the 14-item fatigue scale in a sample of 136 chronic fatigue syndrome patients through principal components analysis, followed by correlations with measures of subjective and objective cognitive performance, physiological measures of strength and functional work capacity, depression, anxiety, and subjective sleep difficulties. participant-manual.pdf (accessed 22 September 2018). The Chalder fatigue scale is widely used to measure physical and mental fatigue in chronic fatigue syndrome patients, but the constructs of the scale have not been examined in this patient sample. Analysis of the use of the Chalder Fatigue Scale in CFS patients who were well enough to attend an. ![]()
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