Effects of supra high-intensity interval training in police officers.

Background: The job environment of a police officer involves unusually high physical and mental stressors paired with hours of prolonged sedentary behavior. The availability of police officers to engage in traditional regularly-scheduled exercises is generally restricted by irregular shift hours. Therefore, supra high-intensity interval training (supra HIIT) may be a viable training option as it elicits physical and mental health benefits and a training session can be completed in less than five minutes.

Arterial stiffening, wave reflection, and inflammation in habitually exercising systemic lupus erythematosus patients.

Background: Chronic systemic inflammation has been implicated in the pathogenesis of hypertension and cardiovascular disease. Systemic lupus erythematosus (SLE) is an autoimmune disease characterized by chronic inflammation and an increased risk for cardiovascular disease. Currently few studies have evaluated the potential cardiovascular benefits of exercise in SLE.

Comparison of central artery elasticity in swimmers, runners, and the sedentary.

Although swimming is one of the most popular, most practiced, and most recommended forms of physical activity, little information is available regarding the influence of regular swimming on vascular disease risks. Using a cross-sectional study design, key measurements of vascular function were performed in middle-aged and older swimmers, runners, and sedentary controls. There were no group differences in age, height, dietary intake, and fasting plasma concentrations of glucose, total cholesterol, and low-density lipoprotein cholesterol.

Endothelial ischemia-reperfusion injury in humans: association with age and habitual exercise.

Advancing age is a major risk factor for coronary artery disease. Endothelial dysfunction accompanied by increased oxidative stress and inflammation with aging may predispose older arteries to greater ischemia-reperfusion (I/R) injury. Because coronary artery ischemia cannot be induced safely, the effects of age and habitual endurance exercise on endothelial I/R injury have not been determined in humans.

Effects of leg blood flow restriction during walking on cardiovascular function.

Introduction: Exercise with limb blood flow restriction (BFR) is a very popular exercise modality in Japan and is spreading widely to the rest of the world. The underlying principle of this training modality is that under the conditions of restricted blood flow, even low-intensity exercise can provide significant muscle strength and hypertrophy. One concern, however, is that BFR during exercise may place unnecessary burden on those with compromised cardiac function.