Reliability and Validity of Air Displacement Plethysmography, Bioelectrical Impedance Analysis and Skinfold Assessment in Tunku Abdul Rahman University College Student

Tong, Jasmine Sze Yien (2020) Reliability and Validity of Air Displacement Plethysmography, Bioelectrical Impedance Analysis and Skinfold Assessment in Tunku Abdul Rahman University College Student. Final Year Project (Bachelor), Tunku Abdul Rahman University College.

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Abstract

The purpose of this study is to determine the reliability and validity of BOD POD (BP),Inbody (IB) and skinfold (SF) in TAR UC students. A total of 105 participants were recruited age: 20 ± 1.49 years old; height: 167.93 ± 8.60 cm, weight: 66.24 ± 16.5 kg, BMI: 23.66 ± 4.83, female BMI: 22.10 ± 4.31, male BMI: 24.85 ± 4.9). Participants were required to complete 2 trials with 3-5 days’ rest interval in between. The data were collected and analysed by using Paired-Sample T-Test and Pearson Correlation. The results showed that there is no significant difference in the %BF for both genders in BP 1 st trial and 2 nd trial ( p = 0.317) as well as IB 1 st trial and 2 nd trial ( p = 0.503). Similar condition goes to the SF in male ( p = 0.420). However, there is a significant difference in the %BF for female using SF ( p = 0.031). No significant correlation was found between BP, IB and SK. In a nutshell, the three instruments can be used for the general population, but SK is not preferable for female and obese individual due the fluctuation of the weight and the differences in the distribution of blood vessels and tissues.