During the course of this study it was discovered that (1) Surface coverage (SC) increased after maximal exercise in all three groups. However during submaximal exercise SC decreased. This being due to platelet desensitisation during submaximal exercise causing a decrease in SC. (2) It was noted that for Submaximal exercise that group 1 displayed the greatest change in SC relative percentage between baseline and post submaximal exercise compared to group 3 who displayed the lowest value, thus suggesting that the greater cardiorespiratory fitness of the individual the lower the change in SC during submaximal exercise due to greater enhanced adaptation mechanisms. (3) Platelet aggregation showed an increase in response to strenuous maximal exercise in all three groups. However a significant difference was found in group 2. While group 3 showed the lowest relative increase. (4) During Maximal exercise group 3 showed the highest relative change in SC whereas in contrast group 3 had the lowest relative AS. (5) Aggregation was depressed my submaximal moderate exercise all three groups. However there was a higher relative change in group 1 compared to group 3 for submaximal exercise. Previous studies of platelet reaction to exercise has shown evident similarities that there is a strong correlation between exercise and its association with cardiovascular events both positive and negative. Vigorous exercise can in fact heighten one’s risk for cardiac events whilst living actively by routine exercise can help to reduce the risk factors associated with cardiovascular mortality dramatically (Heber and Volf,2015), (Siscovick et al., 1984).Main findings:The study found that (1)Sc coverage increased after maximal exercise and decreased during Submaximal. Intensity is an important component influencing platelet function. It was noted that moderate submaximal exercise resulted in platelet desensitisation whereas maximal exercise provoked platelets potentiation in all three groups. Furthering this the effect of exercise was most prominent in the least active group (group 1). Previous studies have shown contradicting elements to the results found in this research with platelet adhesion previously showing a decrease or not showing any change. (Warlow and Ogston, 1974), (BENNETT, 2009). This may have been due to the inconsistencies in the measurements , the long timespan between the research with many carried out as long as 30 years ago along with the absence of control over exercise intensity may have affected the results. An investigation carried out by wang et al., (1994) similarly found that adhesiveness was elevated post strenuous exercise in all participants and reduced by moderate exercise. This was primarily due to morphological changes in which adhered platelets undergo following contact. These morphological modifications lead to the development of pseudopods and cytoplasmic growth. Post strenuous exercise caused a greater increase of pseudopods than those formed at rest. Thus allowing us to understand the more enhanced morphological changes which occur during strenuous exercise increase adhered platelets capacity to combat shear stress(Jen and Tai, 1992).