Hand-to-hand bioelectrical impedance (HH BIA) is a low-cost method to estimate percent body fat (%BF). The BIA method is consistently reliable, but questions on validity remain. We have observed anecdotally that elbow position can render consistently different measures of %BF while using HH BIA, thus leading to the question: Does elbow angle influence the validity of measures derived using HH BIA? The purpose of this study was to assess the effect of elbow position (i.e., IN=flexed to 90° versus OUT=fully extended) on the reliability of HH BIA on 44 male and 24 female healthy adults (age=21±2 yrs, BMI=23±3). An additional aim was to assess the validity of the HH BIA %BF on a subset of subjects (n=12) using air displacement plethysmography (BOD POD®) as the criterion measure. The IN position was ~4%BF lower than the OUT position for HH BIA (p=0.05, effect size=0.67). Measures of %BF for both trials for the IN [intraclass correlation coefficient (ICC)=0.99, coefficient of variation (CV)=2.99%] and OUT (ICC=0.99, CV=1.48%) conditions were highly reliable. On the subsample, the OUT (18.3±6.7 %BF) position exceeded both the IN (14.5±7.4 %BF) and the BOD POD® (16.1±7.8 %BF) measures (p<0.05); however, IN and BOD POD® measures of %BF did not differ (p=0.21). These findings support that HH BIA is a reliable measure at both elbow positions; however, %BF estimations vary considerably (~4%) with respect to the criterion measure depending on elbow position. The OUT position was found to overestimate criteria %BF. Further research may reveal an optimum elbow angle position for HH BIA estimates of %BF.
Thanks you and your colleague for the great help for our publication. You always provide prompt responses and high quality of service. I am so happy to have you working with me.
Thanks again!
Diana (Ding) Dai
It has been a fabulous journey writing articles for your journal because of the encouragement you people provide for writers from developing nations like India. Kindly continue the same. Looking forward for a long term association.
Badareesh Lakshminarayana
Publishing an article is a long process, but working with your publication department made things go smoothly, even though the process took exactly 5 months from the time of submitting the article till the time I have favourable response, the missing part is the peer review details, which is essential in self auditing and future improvement, overall experience was excellent giving your understanding of the situation of lack of financial institution support.
Anas Diab
"This is my first time publishing with the journal/publisher. I am impressed at the promptness of the publishing staff and the professionalism displayed. Thank you for encouraging young researchers like me!"
Ekiti State University, Nigeria
Adebukola Ajite
Submission of paper was smooth, the review process was fast. I had excellent communication and on time response from the editor.
Ekiti State University Teaching Hospital, Nigeria
Ayokunle Dada
I want to thank you for our collaboration. You were fast and effective with a positive spirit of teamwork.
I am truly excited from our collaboration. You were like always fast, efficient and accurate.
I hope that in the near future we will collaborate again.
Aikaterini Solomou
Many thanks for publishing my article in your great journal and the friendly and hassle-free publication process, the constructive peer-review, the regular feedback system, and the Quick response to any queries.
Azab Elsayed Azab
Your journal has accomplished its intended mission of providing very effective and efficient goals in dealing with submissions, conducting the reviewing process and in publishing accepted manuscripts in a timely manner. Keep up the great work and services that you provide.
University of Jacqmar, Inc., USA
John St. Cyr
I hope to ability to make some new investigation and publish in Your Company in future.
Artur Stopyra
Thank you very much for your support and encouragement. I am truly impressed by your tolerance and support.
Thank you very much