The relationship between exercise tolerance and quality of life in angina pectoris

The relationship between exercise tolerance assessed by a conventional exercise stress test using a standard Bruce protocol and quality of life (QoL) was studied in 50 patients with stable angina pectoris (AP). Before the exercise test, patients completed three self-administered QoL questionnaires, the Psychological General Well-Being Index, an Angina-Specific QoL Questionnaire, and Jenkins' Sleep Dysfunction Scale. Total exercise time (r = -0.40) and time until onset of pain (r = -0.44) were significantly correlated with perceived physical limitations. Somatic symptoms were related to total time (r = -0.38). Apart from a significant correlation between depressed mood and total exercise time (r = 0.36), there was no corresponding correlation with well-being and sleep disturbance. These results suggest that exercise stress tests do not reflect quality of life in patients with AP.