The Relationship Between Cardiorespiratory Fitness and Arterial Stiffness in Middle-Aged Men with Abdominal Obesity

THE THERAPEUTIC EFFECTS OF SPORTS ON ARTERIAL STIFFNESS

ABSTRACT Introduction: Cardiovascular disease has become a significant condition affecting human health. Increased arterial stiffness is a leading stage in the occurrence and development of many cardiovascular diseases. Objective: To observe the effect of different acute exercise programs on arterial stiffness of healthy young people under the same amount of exercise. Methods: We selected 16 healthy boys to conduct a blank control test, continuous exercise test, and intermittent exercise. They were divided into blank schemes. Car plan and running plan. Arterial stiffness was repeatedly measured immediately after exercise and 40 minutes after the end. Results: In the three exercise intervention experiments, the heart-ankle vascular index decreased significantly immediately after exercise. After 60 minutes of rest, the heart-ankle vascular index rebounded. Conclusion: Physical exercise can significantly reduce arterial stiffness. Changing the training intensity in sports with the same target heart rate does not affect arterial stiffness. Level of evidence II; Therapeutic studies - investigation of treatment results.

Effect of Brachial-Ankle Pulse Wave Velocity Combined with Waist-to-Hip Ratio on Cardiac and Cerebrovascular Events

BACKGROUND

Abdominal obesity and brachial-ankle pulse wave velocity (baPWV) are indicators of atherosclerosis. But few studies have shown the relationship between baPWV combined with waist-hip ratio (WHR) and cardiac-cerebrovascular events (CCVEs).

METHODS

A total of 18944 subjects from Kailuan study were enrolled in this study. Follow-up was conducted three times over 4.82±1.92 years. All the participants were divided into 4 groups according to baPWV and WHR status on baseline: Q1 (normal baPWV, normal WHR), Q2 (normal baPWV, increased WHR), Q3 (increased baPWV, normal WHR) and Q4 (increased baPWV, increased WHR). The incidence and risk factors and further analysis of hypertension subgroups were analyzed.

RESULTS

During follow-up, 88 myocardial infarctions (MI), 278 cerebral ischemic strokes (CI), 285 strokes and 371 CCVEs occurred, with the cumulative incidence of 0.46%, 1.47%, 1.50%, and 1.96%, respectively. Multivariate Cox regression analysis revealed the risk of CI, stroke and CCVEs was higher in patients with increased baPWV and increased WHR than in the other three groups, followed by the Q3 group (increased baPWV, normal WHR) and Q2 group (normal baPWV, increased WHR) group (all adjusted P<0.01). Further hypertension subgroups analysis showed similar results, but differences were more significant among hypertensive patients. Accordingly, the combination of baPWV and WHR increased the risk of total CCVEs, especially in hypertensive patients.

CONCLUSIONS

BaPWV and WHR were important risk factors for CCVEs and had synergistic effects. When baPWV increased, WHR may contribute more to the risk of CCVEs in hypertensive patients.

Association among Adherence to the Mediterranean Diet, Cardiorespiratory Fitness, Cardiovascular, Obesity, and Anthropometric Variables of Overweight and Obese Middle-Aged and Older Adults

The aim of this study was to evaluate the independent and combined associations between adherence to the Mediterranean diet (AMedDiet), cardiorespiratory fitness (CRF), and different parameters of overweight and obese middle-aged and older adults. Sixty-two participants were enrolled in this cross-sectional study. Fat mass was measured with Dual energy X-ray absorptiometry. AMedDiet and physical activity (PA) were assessed with the PREDIMED and Global PA Questionnaire (GPAQ). Maximal aerobic power was assessed using the 6-min walk test. Systolic (SBP) and diastolic (DBP) blood pressure (BP) were measured with Omron M6, and double product (DP) and mean BP (MBP) were calculated. Kinanthropometry proportionality variables related to obesity were also calculated. Participants with a low CRF as an independent factor or together with a low AMedDiet obtained significantly higher BP, total and trunk fat mass, and proportionality variables (all p ˂ 0.0001). According to the multiple nonlinear regression analysis, Vo2max, AMedDiet, and sex explained 53.4% of SBP, with this formula: 238.611 − (3.63*Vo2max) + (0.044*Vo2max²) − (13.051*AMedDiet) + (0.68*AMedDiet²) + (12.887*sex). SBP and p rediction SBP with the new formula showed a correlation of 0.731 (p ˂ 0.0001); showing a difference between the values of −0.278 (p = 0.883). In conclusion, CRF as an independent factor and combined with AMedDiet can be associated with BP, body composition, and proportionality in overweight and obese middle-aged and older adults.