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Effects of Male Obesity on the Physiological and Metabolic Reaction in Acute Endurance Exercise of Differing Intensity

Author: LiangYu
Tutor: HeYuXiu
School: Hebei Normal
Course: Human Movement Science
Keywords: Obesity Strength Metabolize FFA GH
CLC: G804.7
Type: Master's thesis
Year: 2003
Downloads: 264
Quote: 1
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Abstract

With the continuous improvement of living standards, more and more obese people. Obesity not only affects the individual's appearance and psychological inconvenience for work and life, but also with diabetes, high blood pressure, atherosclerosis, coronary heart disease and certain cancer and other chronic diseases is closely related to, or even shorten the life of the people, so the anti-fat lose weight to become the focus of attention. Currently, obesity prevention exercise therapy mainly with diet adjustments that reduce energy intake through dietary modification; accelerate the energy metabolism of substances in the body through aerobic exercise, increase the resting metabolic rate. Sugar and fat as the main source of energy in the body material, involved in the metabolism of different strength along with diet and exercise differently. Obese due to excessive body fat accumulation, sugar and fat metabolism in the quiet state more dependent on sugar oxidation for energy, lower fat oxidation rate, whether the normal differences in the course of the campaign, the results there is not unanimity. Study of obesity in endurance sports, sugar and fat metabolism change has become an important topic of obesity exercise therapy. The purpose of this study is to the load intensity aerobic exercise process by detecting 40% and 65% (?) O _2max obese group and the normal group, heart rate, blood pressure, perceived exertion level (RPE), and respiratory biochemical changes quotient (RQ) and other physiological indicators and blood glucose (GLU), serum triglyceride (TG), free fatty acid (FFA) and growth hormone (GH) explore whether between obese and normal in the course of the campaign exists on the physiological and metabolic differences; provide a theoretical analysis of different intensity endurance exercise on obese and normal mobilization of energy substances in the body for energy, scientific selection of exercise intensity and duration, development and implementation of anti-fat weight loss fitness exercise prescription basis. Results: 1, quiet fasting state: ① the heart rate of the obese group (P <0.01) and diastolic blood pressure (P <0.05) mean are significantly higher than the normal group; systolic blood pressure difference was not significant, the trend of increasing obesity group. ② quiet obese group RQ, fasting serum TG and FFA concentrations are significantly higher than the mean of the normal group (P <0.05); fasting glucose was no significant difference, but an increasing trend in the obese group. (3) The results suggest that: quiet state, obesity due to fat accumulation excessive cardiovascular function is limited; energy material metabolism may have changed, a lower rate of fat oxidation. 2, in the course of the campaign: ① obese group (?) O _2max was significantly lower than that of the normal group (P <0.001). (2) two load-intensity exercise, the obese group, heart rate, blood pressure (P <0.05) and RPE (40% (?) O _2max movement, P <0.001; 65% (?) O _2max movement, P <0.01) mean are significantly higher than the normal group, and the slow recovery after exercise (recovery: heart rate, P <0.01; blood pressure, P <0.05). _2max sports the ③ obese group the RQ and serum GLU (40% (?) O) The average concentration was significantly higher than the normal group (P <0.05); compared with the normal group, the obese group, serum TG concentration increased trend, but its growth rate has decreased; mean normal serum FFA concentration was no significant difference, but the growth rate of the FFA concentration significantly lower than the normal group (P <0.05). The ④ obese young men in the physiological and metabolic responses to different intensity endurance exercise, compared with 65 advised 02max movement decrease in the proportion of obese group increased serum GH concentration changes occurred in the 40-pin flying max movement; intensity exercise in both load serum GH concentrations in obese group mean lower than the normal group, the trend may be relatively slow response of GH movement. Tip: Compared with the normal group, the obese group in the center of the course of the campaign lung function subject to certain restrictions, a strong cardiovascular responses and perceived exertion than the normal group, is not easy to adapt to exercise stress stimuli; the movement rely more sugar oxidation for energy, fat ability of mobilization and oxidation can reduce fatigue early and deeper level, reduced aerobic capacity of slow recovery after the end of the exercise. 3 obese group in the process of two types of load intensity exercise reaction: (1) the obese group 65 to persuade. The Zmax movement, heart rate (P lt; 0.01), systolic blood pressure mean amplitude (0.05) and RPE level values ??(P lt; O.01) are significantly higher than the 40% the Hang OZmax movement, diastolic blood pressure is significantly low easy the 40 coffee hatred ma, sports, prompted early symptoms of fatigue, but the deeper level; 65 coffee OZmax movement caused the end of the exercise more difficult to restore physiological responses (heart rate, P lt; 0 .01; blood pressure, P lt; 0.05 normal There was no significant difference). ② obese group 65 Qing OZm. Exercise, RQ (P lt; 0.001) and the mean concentration of serum GLU (P lt; 0.05) was significantly higher than the 40% V02max movement; significantly less than 40% VOZmax movement (P lt; 0.05), the average concentration of serum TG and F team; serum GH concentrations higher than 40% VOZmax movement, but not statistically significant. Tip: compared with 65% VOZmax movement, 40% V absorption max during exercise in sugar oxidation for energy ratio decreases, for the mobilization and oxidation of fatty tissue can strengthen more conducive to anti-fat weight loss. Main conclusions: 1, fat accumulation the excessive cardiovascular function, not only affects the body quiet and significantly strengthen the body's physiological responses of 40% and 65% the Hang OZmax intensity movement, reducing the physical, prone to fatigue and slow recovery; the reaction is particularly evident in the 65% v 02max intensity exercise. 2, obesity can make the body change the metabolism of the energy substance in the quiet time and the movement process, i.e. a lower rate of fat oxidation, more use of the glucose metabolism for energy; stars of the reaction is carried out at 65%. Zmax intensity exercise is particularly evident. The obese should adopt the 40% V max exercise intensity still lose weight exercise, not only to a greater degree of mobilization of fat for energy, and relatively easy fatigue (65% V fly max intensity exercise), easy obese.

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