Benefits and Risks of Increased Physical activity on Heart function and Men's Sexual Libido - HHM

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Wednesday, 3 May 2017

Benefits and Risks of Increased Physical activity on Heart function and Men's Sexual Libido

Benefit and Risk of Increased Physical activity on Heart function and Men's Sexual Libido

Physical activity is required for healthy living, this has been documented throughout time and today physical activity is seen as the only way through which upto 25 primary and secondary Chronic medical diseases including cardiovascular disease, obesity can be manage.  One can either engage in a reduced to vigorous excercise depending on ones tolerant level. Deciding the amount of physical activity one needs can put us off reasoning that is why it varies depending on the intended objective. While vigorous exercise can transiently increase the short-term risk for an adverse cardiac event, relatively small amounts of exercise can markedly reduce the long-term risk for chronic disease and premature mortality. 

Prolonged strenuous exercise training or events have been associated with various risks, including sudden cardiac death, atrial and ventricular arrhythmias, and pathological remodeling of the myocardium. The optimum and minimum amounts of physical activity/exercise needed to achieve health benefits are disputed. This article will discuss some of the health risks expected during increased physical activity. 
Despite the risk-benefit paradox, it is clear that the health benefits of physical activity far outweigh the risks, and virtually everyone can benefit from becoming more physically active.

Excercise and heart function

Benefit of regular or routine physical activity / exercise 

Physical activity can reduce 20% to 30% Mortality rate of adult and can even reduce upto 50% when recommended physical activity levels are followed. The rate of physical activity can be employed in predicting the mobility rate that will occur from chronic diseases like obesity and cardiovascular diseases (CVDs). Physical inactiveness according to world health organization is the fourth leading cause of adult deaths. Exercise leading the list of natural remedies for diseses with the ability to ameliorate 25 chronic medical conditions both from primary and secondary causatives agents. This have made Exercise to be enlisted in the recommended health guide for proper health. 

What effect does intensity of exercise have on Healthy living?

There is a dose dependent response in the amount of exercise. Effects of different exercise intensities on all Individual will still be towards an improved health, this means that a previously inactive participant will still benefit greatly from light to moderate exercise intensities,  there is only get a minor additional mortality reduction with a further increase in the activity level and intensity. A  diminishing returns in health benefits can be seen at higher volumes of physical activity and the greatest changes in health status seen when physically inactive individuals become more physically active. Result still will led to a significant reduction in the risk of premature mortality.  

The relationship between health status and physical activity can differ based on the endpoint being evaluated (e.g., blood pressure control, glucose homeostasis, functional status). Evidence indicates that a volume of activity less than half of what is currently recommended by most international guidelines is sufficient for clinically relevant health benefits. Changes in choice of exercise (engaging in aerobic excercise workouts and yoga) can help build musculoskeletal fitness because daily activities that tax the musculoskeletal system can improve health status and reduce the risk for chronic disease, disability, and premature mortality. 

Health risks of vigorous and prolonged strenuous exercise 

There have been several cases of Sudden cardiac death incidences in highly trained athletes from diverse sporting disciplines. For example modern-day Olympic endurance event were inspired by the death story of legend Pheidippides (450 BC), who died after a race. Also the case of myocardial infarction during a marathon race in the Annals of Internal Medicine in 1976. This case involved a 44-year-old male competing in the 1973 Boston Marathon. The autopsy revealed myocardial scarring with normal coronary vessels, leading the authors describing the case to state that “Advocates of long-distance running for prevention of, or rehabilitation from, ischemic heart disease should be aware of this possible complication.”

According to Franklin and Billecke, an estimated 7 million Americans receive medical attention for sports- and recreation-related injuries each year. The majority of these injuries are musculoskeletal in nature (e.g., strains, sprains, fractures); however, of particular concern are the life-threatening events associated with vigorous exertion that can occur in susceptible individuals eg sudden cardiac arrest and myocardial infarction. Highly trained athletes engage in prolonged and strenuous excercises , they doubles the international recommendations for normal health with the hope of increasing performance. When these individuals are enrolled in epidemiology studies to compare their outcome to physical activity, results prove extreme risk of Cardiovascular infarction and sudden Heart / cardiac death. 

Another risk of increased vigorous exercise is that one that affects the Sexual libido. According to an article published  ahead of print on 13 February 2017 in Medicine & Science in Sports & Exercise reveals a study from University of North Carolina on 1077 subjects on endurance exercise training and male sexual libido. The authors conclude that exposure to higher levels of chronic intense and greater durations of endurance training on a regular basis are significantly associated with decreased libido scores in men. In this study, both moderate and light physical activity is associated with relatively high libidos.

Conclusively Darren and others suggested that some people need far less physical exercise than currently recommended in many physical activity guidelines and that it can lead to clinically relevant changes in health status. The dose-response relationship between physical activity and health is similar to the relationship seen with other medicines, where an attenuation of benefit is found at the extreme end of the physical activity range. As such, the axiom that “more exercise is better” may not apply. In fact, individuals training for ultra-endurance events and leaving little time for recovery between events appear to be at an increased risk for the development of CVD and should be cautioned about the perils involved. Also a moderate and light physical activity should be an option as it relatively increase Sexual libidos.

Further  Reading 

Darren E.R. Warburton,  Jack Taunton, Shannon S.D. Bredin,  Saul Isserow. 2016. The risk-benefit paradox of exercise.  BCMJ.  58(4) pp210-218.
Hackney AC, Lane AR, Register-Mihalik J, O’Leary CB. 2017.  Endurance exercise training and male sexual libido. Med Sci Sports Exerc.

 Thompson PD, Franklin BA, Balady GJ, et al. 2007. Exercise and acute cardiovascular events: Placing the risks into perspective: a scientific statement from the American Heart Association Council on Nutrition, Physical Activity, and Metabolism and the Council on Clinical Cardiology. Circulation. 115:2358-2368.

Green LH, Cohen SI, Kurland G. Fatal myocardial infarction in marathon racing. Ann Intern Med 1976;84:704-706.