Effects Of Variable Speed Walking On Body Composition And Blood Lipid Of Middle-aged Males With Arteriosclerosis

Objective: By formulating the rhythm of vigorous walk and monitoring the body compositions and four blood lipid indexes, this study gives exercise intervention to 48 males aged between 45 and 59, who are doing brain work and have dyslipidemia, for 12 weeks with different rhythm of vigorous walk; compares and analyzes the variations of the body compositions and blood indexes before and after vigorous walk exercise intervention; discusses the varying patterns of the influences to those people’ physical indexes from different rhythm of vigorous walk; provides further basic scientific supports to male fitness aged between 45 and 59 to effectively regulate dyslipidemia and improve body compositions.Methods: Recruit 60 middle-aged brain working males from the public, chose 48 suitable ones as the objects of the study then randomly divide them into high speed group, constant speed group, low speed group and control group, every group includes 12 persons. After that, provide them the constituted vigorous walk plan with different rhythm for 12 weeks exercise intervention. Every single exercise time is not less than 45 minutes(min) and at least 3 times every week, then test the physical and blood indexes of the objects. The body compositions indexes are: Muscle gross, Body fat content, Body fat percentage and Body mass index(BMI); the blood indexes are: Total cholesterol(TC), Triglyceride(TG), High-density lipoprotein(HDL) and Low-density lipoprotein(LDL). Via sorting and analyzing the data of the variations of the objects’ body compositions and blood indexes, the effect of exercise plan can be confirmed.Results:(1). After 12 weeks vigorous walk exercise intervention with different plans, compared with the data before: the experiment groups’ body weight, BMI, body fat percentage have no significant changes(P>0.05), but the experiment groups’ body fat percentage are on a slightly descending trend; Group K&M’s muscle gross are on a slightly increasing trend(P > 0.05) and Group Y is on increasing trend with significant difference(P<0.05); the experiment groups’ body fat content are slightly decreased with no significant changes(P>0.05); the control group’s body fat content and body fat percentage are slightly increased with no significant changes(P>0.05).(2). After 12 weeks vigorous walk exercise intervention with different plans, compared with the data before: the experiment groups’ total cholesterol(TC) are on different levels descending trend with no significant changes(P > 0.05); the experiment groups’ triglyceride(TG) are on different levels descending trend, Group K is on a descending trend with no significant changes(P>0.05), Group Y&M are on a significant descending trend(P<0.01, P<0.05); the High-density lipoprotein(HDL) is significantly increased, the experiment groups K&Y&M are all on a significant increasing trend(P<0.001,P<0.001,P<0.05); the low-density lipoprotein(LDL) are changed in different levels, Group K&Y are on a significant descending trend(P<0.05, P<0.01), Group M is on a descending trend with no significant changes(P>0.05); the total cholesterol(TC) and low-density lipoprotein(LDL) of control group are on a increasing trend and the total cholesterol(TC) is significantly increased(P<0.01),for triglyceride(TG),High-density lipoprotein(HDL) and low-density lipoprotein(LDL) there are no significant changes.(3). After 12 weeks vigorous walk exercise intervention with different plans, compared with the data before: the experiment groups(K&Y&M)’s TC/HDL ratio,(TC-HDL)/HDL ratio are on a significant descending trend(P<0.05,P<0.05,P<0.05); experiment groups(K&Y)’s HDL/LDL ratio are on a significant increasing trend(P < 0.01, P < 0.01), experiment groups(M)’s HDL/LDL ratio are on a increasing trend with no significant changes(P>0.05); the control team’s such indexed have no significant changes(P>0.05).Conclusion :(1). Although 12 weeks vigorous walk exercise with different speed plans have no significant improvements on the body compositions of middle-aged males with arteriosclerosis, but it improved the fat distribution, decreased the accumulation of body fat, increased the muscle gross, improved the habitus of middle-aged males, reduce the danger of coronary heart disease. The vigorous walk exercise plan of constant speed group has better effects than other plans for decreasing body fat and increasing muscle gross.(2). 12 weeks vigorous walk exercise with different speed plans could effectively improve the total cholesterol(TC) level of middle-aged males with arteriosclerosis, and the vigorous walk exercise plans for low speed group and constant speed group are more effective on decreasing total cholesterol(TC). The effects of vigorous walk exercise plans for high speed group, constant speed group and low speed group on decreasing triglyceride(TG) are subdued successively. The vigorous walk exercise plan for constant speed group is effective on increasing High-density lipoprotein(HDL) and decreasing Low-density lipoprotein(LDL).(3). After 12 weeks vigorous walk exercise with different speed plans, people with dyslipidemia could have vigorous walk exercise as intervention plan for constant speed group or low speed group, and lower the risk of having atherosclerosis and decrease the danger of coronary heart disease. Having vigorous walk exercise as intervention plan for constant speed group could increase the resistance of having atherosclerosis and coronary heart disease for people with dyslipidemia.