{'fraction_non_alphanumeric': 0.02155887230514096, 'fraction_numerical': 0.0, 'mean_word_length': 6.105882352941176, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
“Warm‐Up” Phenomenon Detected by Electrocardiographic Ambulatory Monitoring in Adult and Older Patients

OBJECTIVE: Inducing tolerance to myocardial ischemia by repeated brief episodes of ischemia has been called “ischemic preconditioning.” “Warm‐up” phenomenon refers to patients with coronary heart disease improving performance after a first exertion and may represent a clinical counterpart to ischemic preconditioning. The goal of this study was to assess whether the severity of myocardial ischemia would be attenuated by two repeated walking‐induced ischemic episodes in adult and older patients.