Cardiorespiratory Fitness and Metabolic Markers in Healthy Young Adult Men

Abstract

Abstract.[Purpose] The purpose of this study was to clarify the relationship between cardiorespiratory fitness and metabolic markers, including leptin, in healthy young adults.[Subjects] The subjects were 51 healthy young men (mean age, 21.6 years; range, 18-31 years).[Methods] Ventilatory threshold and maximal oxygen uptake were measured on a cycle ergometer. The metabolic markers, HDL-cholesterol, triglyceride, fasting glucose, fasting insulin and leptin, were also measured, as well as and body composition, body height, body weight, percentage fat mass, waist circumference, and hip circumference. Blood pressure levels were recorded at rest.[Results] Our results show that lower cardiorespiratory fitness was significantly associated with higher storage of fat, lipid markers of developing atherosclerosis, and circulating leptin levels. Higher circulating leptin levels were also associated with metabolic risk markers such as obesity and insulin resistance.[Conclusion] Our results suggest that appropriate cardiorespiratory fitness may improve circulating metabolic markers even in healthy young men. It is therefore important that all persons should have high cardiorespiratory fitness from an early period of life for the effective prevention of cardiovascular disease.

Relationship between aerobic capacity and cardiovascular disease risk factors in Thai men and women with normolipidemia and dyslipidemia

“…In addition, no subject in this study had a relationship between aerobic capacity and FFM and BMI. This is supported by the study of Yagura et al 15 ) . This may indicate that aerobic capacity was not influenced by skeletal muscle mass but rather by lipid profiles among the middle-aged normolipidemic and dyslipidemic Thai participants in this study.…”

“…Both mechanisms decrease oxygen transport capacity of the vasculature, either at the peripheral vasculature or by centrally affecting the heart 10 ) . Thus, aerobic capacity or maximal oxygen consumption (VO 2, max ) is normally used to determine cardiorespiratory fitness 11 , 12 , 13 , 14 , 15 ) . A low VO 2, max is associated with CVD risk factors (i.e., lipid profiles 16 ) ) such as obesity 17 , 18 ) and hypertension 19 ) .…”

Benefits of short-term structured exercise in non-overweight women with polycystic ovary syndrome: a prospective randomized controlled study

“…The beneficial effects of physical fitness are related to its reduction of the risk of cardiovascular dysfunction and to the delayed onset of metabolic syndrome activity of the proteins involved in insulin signal transduction in skeletal muscles 17 , 18 , 19 ) . Therefore, by following a systematic exercise program, PCOS patients can improve their cardiopulmonary functional capacity and insulin sensitivity.…”

Comparison of body composition, heart rate variability, aerobic and anaerobic performance between competitive cyclists and triathletes

“…The ability to sustain high metabolic power for long periods is very important for athletes competing in triathlons. Several field-based studies have shown that physiological and morphological functional characteristics change negatively with age 2 , 3 ) . It is very important that triathletes have suitable anthropometric and physiological characteristics to advance performance in the three disciplines involved.…”