Sex Differences In Augmentation Index In Response To Acute Dynamic Exercise
نویسندگان
چکیده
Augmentation index (AIx) is derived from pressures imposed on the left ventricle as a result of systolic peripheral wave reflection. Differences in AIx response to an acute stress, such exercise, may prove useful for predicting future cardiovascular risk younger adults, but less known about whether this differs between men and women. PURPOSE: To examine there are sex differences bout exercise healthy individuals. METHODS: Apparently recreationally active individuals (18-42 yrs old; 10 11 women) arrived at lab 12 hrs fasted. Baseline measurements were taken using cuff-based applanation tonometry dominant arm. Participants underwent four rounds dynamic body weight exercises. measures repeated 5-, 10-, 15-minutes post again 24-hrs exercise. All values normalized heart rate 75 bpm (AIx75). RESULTS: AIx75 was significantly higher women (5.9 ± 3.6%) compared (-3.9 2.6%) baseline (P = 0.04). Compared significant increase (13.6 3%; P < 0.001) (26.2 3.9%; 5-min with exhibiting greater 0.02). drop both 10-min (18.6 3.6%; 15-min (15 post-exercise However, remained elevated (16 3.4%; 0.33) (12 3.2%; 0.1). sexes not evident either 10- or 0.58 0.51, respectively). returned levels 24-hr visit 0.57 resting apparent (-5.5 3.5% vs. 7.2 women; 0.01). CONCLUSIONS: This study demonstrates induced increases AIx75. These findings suggest potential physiological structural that influencing arterial ventricular rest
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ژورنال
عنوان ژورنال: Medicine and Science in Sports and Exercise
سال: 2021
ISSN: ['1530-0315', '0195-9131']
DOI: https://doi.org/10.1249/01.mss.0000760084.74586.95