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Physiology drafts of speech  代寫

Physiology drafts of speech 代寫

Do males have lower resting heart rate than female?
Resting heart rate (RHR) refers to the number of times a heart contracts in one minute (beats per minute or BPM) while at complete rest. It is an important point in Physiology.
My presentation is mainly about the effect of gender on resting heart rate. The question we aimed at work out is “Do males have lower resting heart rate than females?” One thousand three hundred and sixty-two subjects (496 male, 781 female, 85 no gender recorded), with an average age of 20.4, were recruited for the study consecutively from 2008 to 2010, aiming at obtaining statistics relevant to our research and provide a comparison of more than one year to ensure that our results were valid. The subjects were from Europe, Asia, Oceania and the Americans and 28 of them had no home recorded. Their personal information was recorded by questionnaire. The resting heart rate of each gender will be compared with the average resting heart rate in order to find the lower one.
We found that the average resting HR was 68.4 in the experiment, with the resting HR of male 66.6 and female 70.3 respectively. The highest male resting HR (110) was lower than that of female (116), and lowest male resting HR (40) also lower than that of female (43). According to the data, males have lower resting heart rates than females. A limitation of our study is that we were not able to get enough data of people living in various continents and people of different species and that we didn’t consider the influence of age on the result of the study. Moreover, males and females included in the experiment were not equal in number, and we got some data of individuals that did not have gender recorded. Future research of this topic should involve trials in which each group with different background, age and species is generally equal in number. We cannot conclude that this result will not change as the growing age of people.
To follow up our findings, we still discussed about the relevance of resting HR and age. According to an article named “Standardized tests of heart rate variability: normal ranges obtained from 309 healthy humans, and effects of age, gender, and heart rate” in the journal Clinical Autonomic Research, a significant inverse correlation between age and resting heart rate (HRV) exists. It showed that women up to the age of 55 years have a higher resting HR compared with men.
That’s all, thank you.
 Physiology drafts of speech  代寫

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