Utilization Of B-Mode Ultrasound As A Body Fat Estimate In Collegiate Football Players

<p>The purpose of the present study was to validate a 7-site ultrasound imaging protocol to predict percent body fat (%BF) in a Division I football team. Body composition was estimated by ultrasound, seven site skinfolds (SKINFOLD), and the three compartment-water (3C-W) model of Siri (1961), using Bioimpedance spectroscopy (BIS) to estimate total body water (TBW) and air-displacement plethysmography (BODPOD^®) to determine body density (Db). Pearson’s product-moment correlation analyses were run to determine between Σ_Ultrasound and the criterion 3C-W, and between the Σ_Skinfold and Σ_Ultrasound. Strong positive correlations were observed between Σ_Skinfold and Σ_Ultrasound (r=.984; pUltrasound and %BF from 3C-W (r=0.878, <em>p</em>Ultrasound, (%BF= 6.194+(.096* Σ_Ultrasound); standard error of the estimate [SEE]=2.97%). Cross validation analyses were performed using an independent sample of 29 players. Mean observed %BF and mean predicted %BF were 18.32 ± 6.26% and 18.78 ± 6.22%, respectively. The constant error (CE), SEE and validity coefficient (r) were 0.004%, 2.64%, and 0.91, respectively. The total error (TEE) was 2.87%. Conclusion: The positive relationship between ultrasound measurements and the 3C-W model suggests the B-mode ultrasound may be a practical alternative of predicting %BF in Division I football players.</p>

Name thesis:degree_name

Master of Science in Kinesiology (M.S.)

Level thesis:degree_level

Thesis (open access)

Discipline thesis:degree_discipline

Department of Health and Kinesiology

Year dc:date.available

2015

Author dc:creator

• Hyde, Parker

Contributors dc:contributor

• Jim McMillan
• Amy Jo Riggs

• ETD
• 3-compartment model
• validation
• athlete
• skinfold
• Sports Sciences

Repository record dc:identifier

https://digitalcommons.georgiasouthern.edu/etd/1282

OAI identifier oai:identifier

oai:digitalcommons.georgiasouthern.edu:etd-2329