In my 2nd blog post I talked about benefits of exercise for weight loss. This blog post will be on how exercise helps health conditions and diseases.
Benefits on health conditions and diseases through exercise
Photo credit: (Association, 2012)
Physical activity can increase your lifespan. Physical activity at any age has proven to reduce the risk of many chronic illnesses including cardiovascular diseases. Population based studies have shown that increased levels of regular physical activity are inversely proportional to cardiovascular mortality; in simple words it means that with increasing levels of physical activity the cardiovascular mortality rate decreases. In one study there was a 24% decrease in cardiovascular mortality rate when the subjects’ energy expenditure was greater than 2000kcal/week.
As shown by the graph, the risk of heart disease is lower in subjects who are fit.
Exercise directly affects the functional activity of the vascular endothelium. It increases the sheer forces on the endothelial which increases blood flow and enhance vasodilatory capacity of arteries. The endothelium plays an important role in antiatherosclerotic functions such as preventing platelets and inflammatory cells adhering to the vascular surface. Exercise therefore reduces the risk of artherosclerosis.
Regular exercise reduces bad cholesterol (LDL) and increases HDL cholesterol. Lowering LDL cholesterol levels lowers the risk of cardiovascular related diseases.
Physical activity can reduce the risk of type 2 diabetes. Type 2 diabetes occurs due to a combination of the inability of muscle cells to respond to insulin and inadequate insulin secretion. Contracting muscles increase the uptake of blood glucose. Transportof glucose into muscles is via GLUT proteins(mainly GLUT 4). Insulin activates GLUT4 translocation v a complex pathway. Muscle contractions however use a different pathway to translocate GLUT 4. GLUT4 translocation by insulin is impaired in type 2 diabetes. Both aerobic
and resistance exercises increase GLUT4 abundance and blood glucose uptake even in type 2 diabetes patients.
Photo credits: (Krishna, 2015)
The graph illustrates that the incidence of diabetes in high risk subjects significantly reduced when engaged on more weekly physical activity.
Image credit: (Indiana.edu, 2016)
I hope by now that these posts inspired some of you to get up and get moving!
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World-heart-federation.org. (2016). Cardiovascular disease risk factors – Physical inactivity | World Heart Federation. [online] Available at: http://www.world-heart-federation.org/cardiovascular-health/cardiovascular-disease-risk-factors/physical-inactivity/ [Accessed 3 May 2016].
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Colberg, S., Sigal, R., Fernhall, B., Regensteiner, J., Blissmer, B., Rubin, R., Chasan-Taber, L., Albright, A. and Braun, B. (2010). Exercise and Type 2 Diabetes: The American College of Sports Medicine and the American Diabetes Association: joint position statement. Diabetes Care, [online] 33(12), pp.e147-e167. Available at: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2992225/ [Accessed 3 May 2016].
Indiana.edu. (2016). Diabetes & Exercise. [online] Available at: http://www.indiana.edu/~k562/diab.html [Accessed 3 May 2016].
Wentworthvillephysio.com.au. (2016). The Health Benefits of Regular Exercise | Wentworthville Physiotherapy. [online] Available at: http://www.wentworthvillephysio.com.au/info-sheets/the-health-benefits-of-regular-exercise/ [Accessed 3 May 2016].
Association, A. (2012). Exercise to Prevent Heart Disease – Go Red For Women. [online] Go Red For Women®. Available at: https://www.goredforwomen.org/live-healthy/first-steps-to-prevent-heart-disease-and-be-heart-healthy/exercise-prevent-heart-disease/ [Accessed 3 May 2016].
Krishna, H. (2015). 5 Best Exercises for Type 2 Diabetes Patients. [online] Diabeticpick. Available at: https://www.diabeticpick.com/blog/exercises-tips-for-diabetes/ [Accessed 3 May 2016].