Human Biology Report Assignment

Human Biology Report Assignment Words: 713

Discussion The main findings of the present study were that the number of push up significantly in male than female, in contrast to the pulse rate, could be attributed at least partially to the greater aerobic fitness in male compared to the female students (see Figure 2). With thorough analysis of the results, the null hypothesis has been proven correct as there is no significant difference in the mean maximal pulse rate change of subjects who could do fewer than 20 push-ups and subjects who could do 20 or more push- ups.

The P value for the t-test of the heart rate changes of students who completed sees or over 20 push – ups was over 0. 05. The results indicated that the mean value were very similar, showing a difference of only 0. 9383 (refer to Appendix for the raw mean value results). These figures are based on the study of all 149 entries of data which include both males and females. Evidently, there is a large difference of variance within these above results and is consistent with the range of the results of data collected.

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The ranges of the data sets suggest that the spread of scores around the mean were consistent. Majority of subjects displayed a significant increase in Max VIA and an inclusive decrease in the earth rate when both released the same absolute power output after training but also showed no/insignificant difference in heart rate (Skinner AS, et al). The male individuals in this experiment could complete more push up than females according to the t-test results.

For explanation, the research done by Samba and Roger about the dancer in a different gender might suggest an answer. Male dancers have higher 24 hour systolic blood pressures than female dancers and that was related to a large mass of left ventricles and large maximal exercise load, which could be influenced by size, body shoreline and other factors (Samba and Roger, 2001) The null hypothesis that there were no significant difference in the mean number of push-ups done by males and females was rejected by the less than 0. 5 p value for the t-test. Therefore, the alternative hypothesis was proved as there was a significant difference in the mean number of push-ups done by males and females. With gender comparison for the mean number of push ups, the results state that while there were 95 male participants, the 54 female participants greatly affected the mean. For example, the pulse rate change of one female subject was 86 beats per minute after performing one push-up. The average number of push ups for females averaged at 20 (rounded off from 19. 962963) whereas the average number for males was 38 push – ups (38. 2631 5789) with the mean almost doubling the female average. (T blew 4) This limitation gave unreliable results to the experiment. Reviewing the heart rate count skills of the students in this experiment and conducting more replication of results for the same individual could minimize the error of this experiment. Another limitation of the experiment could be the differing results of males and males averages in respect to various studies which show the affect of gender on the amount of push-ups performed.

The results could be improved by targeting both males and females of a similar health status to minimize discrepancies between results and provide a more accurate result. For further studies, the relationship between the heart rate changes of the subjects and their genders could be investigated by measuring the change in pulse after the same exercise intensity for both genders. Well management of correct procedural of measuring and categorizing the groups correctly could improve the result and the experiment. The more accurate technique is to distinguish subjects between fit and unfit.

The fit subject will prove a greater result in VIA Max and also in stroke volume than a sedentary university student (Bert et al, 2003). In conclusion, the results detailed that the mean change in pulse rate was not significantly demonstrated between the subjects who could perform more or less than 20 push-ups. However, there was a high difference in the average number of males and females able to perform push -ups which indicate there is a highly potential difference in cardiac ability within the genders as stated in the introduction.

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