ie28group5finalpaper.pdf - Study on the Effect of Body Mass Index on Resting Heart Rate Marianne Lourdes L Chua Javier Vicente G Lim and David Martyn R

ie28group5finalpaper.pdf - Study on the Effect of Body Mass...

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Study on the Effect of Body Mass Index on Resting Heart Rate Marianne Lourdes L. Chua, Javier Vicente G. Lim, and David Martyn R. Vinluan Abstract This experiment aimed to test whether or not the Body Mass Index (BMI) of a person affects his/her resting heart rate. Convenience sampling via word of mouth invitation was used on UP Diliman BS Industrial Engineering students in order to obtain 32 participants. Weight (in kg) and height (in m) were measured for all the participants in order to calculate their BMI. The participants were also asked in real life regarding their activity level (lifestyle -- either low or high activity) and sex. The resting heart rate of each participant was obtained via blood pressure monitor. The effects of the various factors as well as their interactions with each other were tested and observed in accordance with the multifactor experiment design. The significance of the effect caused by a particular factor (or group of factors) was determined via hypothesis testing. The study found no significant interactions between any of the factors and the response variable. The R 2 was 60.2110% and the obtained value for R 2 adj was 22.9088% . The results of the study conclude that BMI does not have a significant impact on resting heart rate. Index Terms - Body Mass Index (BMI), resting heart rate I. INTRODUCTION The Body Mass Index (BMI) is an estimator of body fat based on the height and weight of an individual. BMI can be used to screen for weight categories (i.e. underweight, normal, overweight, obese) that may lead to health problems but it is not diagnostic of the body fatness or health of an individual . Its formula is given by [1]: MI B = ( height in meters ) 2 weight in kilograms [Eqn. 1] BMI is limited by the fact that it is not able to take into consideration body composition (body fat percentage). Due to this, the BMI may overestimate the body fat in athletes and others who have muscular build, and underestimate body fat in older persons and others who have lost muscle [2]. The resting heart rate (RHR) of a person is the number of contractions of the heart that occur in a single minute while the body is at complete rest. This number will vary depending upon the age, gender, and general health of a person. In general, the average resting heart rate is 60-100 bpm (beats per minute) for adults while well-trained athletes are 40-60 bpm. The resting heart rate of a person is a strong indicator of that person’s basic level of fitness, as it is a measure of how efficiently a person’s heart is able to deliver blood throughout the whole body [3]. The lower the number, the more efficiently his/her heart is able to distribute blood throughout the body, and thus the more fit the person.
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  • Spring '17
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