relationship among three field methods of estimating percent body fat in young adults.

by:Sinowon     2020-01-24
A certain amount of fat is essential for normal body function, and subcutaneous fat is generally considered to represent a good estimate of body fat. (1)
Body composition divides the body into thin body and fat body.
The amount of fat is a major issue in health care, as obesity and overweight are associated with health issues such as heart disease, diabetes, osteoporosis, gout, cancer and arthritis. (2)
The degree of body fat is measured by the percentage of body fat, which is the percentage of fat as a percentage of body weight. (3,4,5)
The percentage of body fat can be measured using laboratory methods, including water pressure weighing, near-infrared resistance, magnetic resonance imaging, ultrasound evaluation, computed tomography and dual-energy x-
X-ray absorption measurements or on-site methods such as skinfold thickness measurements, body circumference measurements, and biological measurements
Electrical impedance analysis (BIA). (1,6)
Most of the on-site methods have been shown to be well associated with underwater water pressure weighing. (6)
However, given the changes in the methods used in the assessment, it is uncertain whether the field methods of different estimated weight percentages will give similar values.
For example, while bioelectrical impedance analysis estimates body fat by impedance/resistance to body current, the skinfold thickness and body circumference measurements use regression equation models to predict body fat. (6)
Given this, the three methods may not be able to predict similar values for the percentage of body fat.
This has clinical significance, especially in those developing countries where complex equipment is relatively scarce, and needs to be measured using pleat calipers and the fat monitors required for some field methods.
The study used three on-site methods to investigate the relationship between the estimated body fat percentage of significantly healthy young Nigerian people.
Methods this study was approved by the ethics committee of the university and its teaching hospital.
The number of participants in the study was 168 (
93 women and 75 men)
Young people between the ages of 18 and 29 are obviously healthy.
They were recruited from students and staff at the Ibadan community University College Hospital using the purpose sampling technique.
All those who volunteered to participate in the study were given further interviews and physical examinations.
A person with fever, cold, edema, paralysis, or edema;
With a pacemaker.
Women and pregnant women were excluded from the study.
Participants who met the inclusion criteria signed an informed consent form before they were allowed to participate in the study.
Four measures: height and weight of body mass index (BMI)
Analysis of body circumference, skin pleat thickness and biological electrical impedance (BIA)
Obtained from each participant.
Participants were divided into ideal weight, underweight, overweight, and obesity using BMI. (7)
The Omron body fat monitor is used as a BIA device while the pleats and non-
The thickness of the pleats and the length of the body circumference were measured using measurable tape measure, respectively.
The overall possible relationship between the body fat percentage estimated from the body circumference and skinfold thickness measurements and BIA should not be.
In addition, the relationship between body circumference measurement, skinfold thickness measurement and body fat percentage estimated by BIAin and different body weight types (BMI)
Be searched separately.
All measurements were performed by a researcher on the same day (YOB).
Each participant completed the measurement within 25 to 50 minutes.
The age of the participant\'s last birthday was recorded.
The weight is measured to the nearest 0.
1 kg with portable weighing scale (Secca, Germany)
The height is measured to the nearest 0.
5 centimeters using a detachable plastic height meter (Secca,Germany).
Both measurements were conducted using the International Human body measurement evaluation criteria (ISAK)protocol (8)
The body mass index is divided by the weight in kilograms by the height in meters. (8)
Non-measuring body circumference with flexibility
Elastic tape.
All measurements are taken on the right side of the body.
The measured position of young men aged 18 to 26 is the right arm (2.
5 cm below shammia), the abdomen (2.
Under the navel 5 cm)
Right forearm (
Midpoint between shoulder and elbow).
Measured on the right thigh (2.
5 cm below hip), the abdomen (2.
5 cm under the umbilical cord)
Right forearm (
Midpoint between shoulder and elbow)for females.
Between the ages of 27 and 50, the measurement site is the hip, abdomen and right forearm. (8)
For women in this age group, the right thigh, abdomen, and right calf were measured (
The widest perimeter
Distance between ankle and knee). (8)
Measure the thickness of the skin to the nearest millimeter using Lange calipers (
Cambridge Industries, Maryland)
At the following locations: triceps, biceps, deputy
Shoulder blades and Upperiliac.
All measurements were made on the right side of the body while the participant was standing. (8)
Three fold measurements were performed at each site, recorded as the average of the two maximum values of the fat fold fraction at that site. (8)
The body fat percentage of participants was estimated from the sum of the four pleats measured using the tables developed by Durnin and womersley. (9)
Bioelectrical impedance analysis of this study using fat monitoring (OMRON BF-32)device.
These measurements were taken while the participants were standing, the feet were slightly separated, while both hands were holding the body fat monitor and pressing the shoulder hard to bend into 90 [degrees]
And maximum extended elbow.
Participants maintain this position until the instrument shows the percentage of body fat of origin according to the participant\'s weight, height, age and gender.
In order to calculate the percentage of body fat from body circumference measurements, the age and gender specific conversion equation derived by McArdle et al. (6)was used.
Data analysis used descriptive statistical methods of mean and standard deviations to place participants in weight (BMI)categories.
The Pearson product moment correlation coefficient was calculated to investigate the relationship between the obtained body fat percentage score and skin thickness, body circumference measurement, and bioelectrical impedance analysis.
Find out the relationship between body weight by Pearson product moment correlation coefficient (BMI)
Percentage of body fat scores obtained from skin folds thickness, body circumference measurements, and BIA.
Independent t
The test was used to compare the differences in body fat percentage estimates measured by male and female participants from skin thickness, waist circumference, and BIA. The one-
Way ANOVA was used to determine whether there was a significant difference in skin thickness calculated based on weight, body circumference measurements, and body fat percentage estimates for BIA (BMI)types (p < 0. 05).
Results participants were classified as weight using body mass index, with 50% having ideal weight, 23.
Weight less than 8% people, 15 people.
6% people are overweight and 10. 7% were obese.
Table 1 shows the physical features of the participants.
Table 2 shows the percentage of body fat measured using three methods.
The average body fat scores of skin fold thickness measurement, waist circumference measurement and BIA were 19, respectively. 8 [+or -]6. 3%, 18. 5 [+ or -]7. 1% and 18. 4 [+ or -]8. 0% respectively.
The percentage of body fat obtained by female participants from these three methods was significantly higher than that of male participants (table 2).
Table 3 shows the difference in body fat percentage estimated by weight by three methods (BMI)categories.
Compared with the three methods of underweight, there were only significant differences in participants with underweight.
Post-mortem analysis of body fat percentage of the three methods based on body weight, but suggests differences between skin fold thickness and BIA technique.
The percentage of body fat estimated from skin fold thickness was found to be significantly correlated with the percentage of body fat estimated by BIA (p
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