A Simple Method for Increasing Levels of High-Density Lipoprotein Cholesterol: A Pilot Study of Combination Aerobic- and Resistance-Exercise Training

Abstract

Evidence suggests that physical activity has a beneficial effect of elevated high-density lipoprotein cholesterol (HDL-C) on reducing coronary artery risk. However, previous studies show contrasting results for this association between different types of exercise training (i.e., aerobic, resistance, or combined aerobic and resistance training). The aim of this study was to determine which type of exercise training is more effective in increasing HDL-C levels. Forty obese men, age 18-29 yr, were randomized into 4 groups: an aerobic-training group (n = 10), a resistance-training group (n = 10), a combined-exercise-training group (n = 10), and a control group (n = 10). After a 12-wk exercise program, anthropometrics, blood biochemical variables, and physical-fitness components were compared with the data obtained at the baseline. Multiple-regression analysis was used to evaluate the association between different types of exercise training and changes in HDL-C while adjusting for potential confounders. The results showed that with the control group as the comparator, the effects of combined-exercise training (β = 4.17, p < .0001), aerobic training (β = 3.65, p < .0001), and resistance training (β = 2.10, p = .0001) were positively associated with increase in HDL-C after adjusting for potential confounders. Our findings suggested that a short-term exercise program can play an important role in increasing HDL-C levels; either aerobic or resistance training alone significantly increases the HDL-C levels, but the improvements are greatest with combined aerobic and resistance training.

Responses of the Acutely Injured Spinal Cord to Vibration that Simulates Transport in Helicopters or Mine-Resistant Ambush-Protected Vehicles

“…[37][38][39][40][41][42][43] However, many of these animal studies employed very intense vibration stimuli for prolonged periods of time, and whether such responses would occur in a medicaltransportation vehicular setting is unknown. In regards to the biological effects of high-frequency vibration and shock, little is understood about the underlying pathophysiologic mechanisms.…”

Effects of Concurrent Exercise on Hypertension: Current Consensus and Emerging Research

“…Four of the eight trials found concurrent exercise training conferred similar BP benefi ts to those achieved with aerobic and dynamic resistance training alone among young men with prehypertension [ 49 ] and obesity (6-10 mmHg) [ 50 ], older men with hypertension (12-24 mmHg) [ 23 ], and middle-aged adults with prehypertension and obesity (3-5 mmHg) [ 46 ], despite widely varying concurrent exercise training programs. In contrast, combined aerobic and resistance exercise performed on separate days did not reduce BP among middle-aged men [ 56 ] and women [ 57 ] with prehypertension; similar fi ndings were reported following concurrent exercise training (i.e., on the same day ) among middle-aged women [ 55 ] and older adults with pre-to-established hypertension [ 58 ] (see Table 3.2 ).…”

“…Tseng and co-investigators [ 50 ] had 40 young men with normal BP to prehypertension and obesity (~30 kg/m 2 ) perform ~45 min of moderate to vigorous intensity aerobic, resistance, or combined exercise training (aerobic and resistance exercise performed on separate days ), 5 days weekly for 12 weeks (see Table 3.2 ). Tseng et al found that resting BP was reduced by ~4-8 mmHg compared to baseline ( p < 0.001), and these reductions were similar following aerobic (6-8 mmHg), resistance (4-5 mmHg), and concurrent exercise training (6-7 mmHg, p > 0.05).…”

Vegetarian Diets along with Regular Exercise: Impact on High-Density Lipoprotein Cholesterol Levels among Taiwanese Adults

“…HDL Cholesterol levels have been found to be more sensitive to aerobic exercise than other lipid fractions [11]. The impact on HDL cholesterol may also differ by exercise type [12].…”