Validity and Reliability of A-Mode Ultrasound for Body Composition Assessment of NCAA Division I Athletes

Wagner, Dale R.; Cain, Dustin L.; Clark, Nicolas W.

doi:10.1371/journal.pone.0153146

Cited by 47 publications

(63 citation statements)

References 21 publications

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“…It can accurately track changes in body fat content yet it relies on technician skills. Studies have compared it to BMI (body mass index), skinfold caliper, B-mode ultrasound, DXA (dual-energy X-ray absorptiometry), CT (computed tomography) and research methods such as air displacement plethysmography (ADP), also known as BOD POD [5,15,16].…”

Section: Resultsmentioning

confidence: 99%

A-mode Ultrasound Analysis of Postoperative Thigh Edema in Patients with Hip Fracture

Hărăgus¹,

Prejbeanu²,

Timar³

et al. 2017

Mat.Plast.

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Postoperative edema and lean body mass may contribute to functional outcome in frailty hip fracture patients. Advances in body mass determination have produced consistent results with A-mode ultrasound. We therefore aimed to determine the utility of A-mode ultrasound in analyzing postoperative limb edema in patients receiving treatment for proximal femur fractures. 4 males and 6 females, with an average age of 74.3 years were included. 4 had fractures of the femoral neck treated by hemiarthroplasty and the rest had extracapsular fractures which were stabilized with short intramedullary nails. Measurements were done using a commercially available A-mode 2.5MHz transducer on the thighs approximately 15 cm proximal to the patella. Comparison showed significant difference between the operated and contralateral thigh circumference (P=0.001) as well as muscle layer thickness differences between femoral neck patients and those with fractures of the trochanteric region (P=0.016). There was no correlation between the A-mode ultrasound determined superficial layer difference and entire layer difference (R2=0.037; P=0.59). However, there was linear correlation between the A-mode ultrasound determined entire layer difference and limb circumference difference, (R2=0.414; P=0.044). Postoperative thigh edema is present in all surgically treated patients for proximal femur fractures. A-mode ultrasound might be a reliable tool to examine adipose and muscle layers separately in the immediate postoperative period. There may be a difference in edema distribution between femoral neck and peritrochanteric fractures but larger samples are required.

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Section: Resultsmentioning

confidence: 99%

A-mode Ultrasound Analysis of Postoperative Thigh Edema in Patients with Hip Fracture

Hărăgus¹,

Prejbeanu²,

Timar³

et al. 2017

Mat.Plast.

View full text Add to dashboard Cite

show abstract

“…Thus, local thigh adipose tissue thickness, derived from ultrasound, did not improve the strength of our models. Skinfold and ultrasound imaging measurements of subcutaneous thigh adipose are observed to be reliable and highly correlated (r = 0.698 -0.943) when performed by skilled technicians 32 . Moreover, skinfolds are observed to perform equally, or better, than ultrasound imaging when compared against hydrodensitometry 28,30 , computed tomography 29 , and dual-energy X-ray absorptiometry 27 .…”

Section: Discussionmentioning

confidence: 97%

Predictive Ability of Body Fat Percentage and Thigh Anthropometrics on Tissue Cooling During Cold-Water Immersion

Rech¹,

Bressel

2020

Journal of Athletic Training

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Context: Cold water immersion (CWI) is a common aid in exercise recovery. CWI effectiveness depends on the magnitude of muscle and core cooling. Individual cooling responses to CWI are variable and likely influenced by CWI dose and individual physiological characteristics. Objective: Evaluate body fat percentage and thigh anthropometrics as predictors of intramuscular and skin cooling responses to CWI. Design: Interrupted time-series. Setting: Sports medicine research center. Participants: Sixteen young adults (8 male, 8 female, age=24.3±1.84 years, height=176.4±12.7 cm, mass=86.6±29.4 kg). Intervention: Body fat percentage was measured using a three site skinfold. Thigh length, thigh circumference, anterior thigh adipose thickness, anterior thigh muscle thickness, and thigh volume were estimated using manual and ultrasound methods. Using sterile techniques, thermocouple probes were approximated in the belly of the rectus femoris (2 cm deep to sub-adipose tissue) and on the anterior mid-thigh surface. Participants cycled on an ergometer for 30 minutes at a target heart rate between 130 and 150 beats per minute. Post-exercise, participants were placed in CWI (immersion depth: iliac crest; 10°C) until intramuscular temperature was 7°C below pre-exercise baseline temperature, with a maximum immersion duration of 30 minutes. Main Outcome Measure(s): Intramuscular rectus femoris and thigh skin temperatures measured post exercise, after 10 and 15 minutes of CWI, and post-CWI. Results: Body fat percentage significantly predicted rectus femoris cooling magnitude and rate after 10 minutes of CWI, 15 minutes of CWI, and post-CWI (p <0.001; R2 = 0.58–0.64). Thigh anthropometrics significantly predicted thigh skin cooling rate post-CWI (p = 0.049; R2 = 0.46). Conclusions: A simple three site skinfold assessment may improve the efficacious prescription of CWI through estimation of the dose required for minimal muscle tissue cooling.

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“…Ultrasound technique can also be used to estimates the body fat mass with a high accuracy. [13][14][15]. In a previous study [16], we have developed a new model to predict fat mass in 93 athletes from a combination of anthropometric dimensions and ultrasound measurements at the abdomen and mid-thigh with higher correlation to the BF% DXA .…”

Section: Introductionmentioning

confidence: 99%

Prediction of body fat in male athletes from ultrasound and anthropometric measurements versus DXA

Pineau

Bouslah

2020

J Sports Med Phys Fitness

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Prediction of body fat in male athletes from ultrasound and anthropometric measurements versus DXA. Abstract Background: To compare the accuracy of body fat percentage (BF%) measured by an ultrasound portable device and anthropometric measurements with a Dual Energy X-ray Absorptiometry (DXA) as the reference technique in male athletes. Methods: A total of 100 athletes: 16 boxers, 4 rowers, 5 gymnasts, 6 base ball players, 19 judo players, 10 taekwondo players, 7 basket-ball players, 21 wrestlers, 6 cyclists on track and 6 karate expert aged from 18 to 30 years participated. All athletes were selected from the French National Institute of Sports and Physical Education . Ultrasound measurements were made with a sonographic US BOX at the mid-thigh level. We developed a multi -linear model of body fat estimation from ultrasound and anthropometric dimensions (height, weight, waist circumference) using the DXA reference method. A cross-validation study was then performed with this linear regression on 62 males athletes proportionally stratified across the sports. Results: The best accuracy of BF was obtained using a multi-linear model from ultrasonic and anthropometric measurements with a concordance correlation ρ c = 0.941. This model was then used to estimate BF on the 62 males athletes. The concordance correlation ρ c = 0.931 and SEE =1.60. The 95% limits of agreement for individual BF% were [-4.1;3.6%] with symmetrically distributed deviations.Conclusions: Comparing to DXA, ultrasonic and anthropometric measurements are both accurate techniques to estimates BF%. Our results suggest that this regression model is practical to apply to different sports.

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Validity and Reliability of A-Mode Ultrasound for Body Composition Assessment of NCAA Division I Athletes

Cited by 47 publications

References 21 publications

A-mode Ultrasound Analysis of Postoperative Thigh Edema in Patients with Hip Fracture

A-mode Ultrasound Analysis of Postoperative Thigh Edema in Patients with Hip Fracture

Predictive Ability of Body Fat Percentage and Thigh Anthropometrics on Tissue Cooling During Cold-Water Immersion

Prediction of body fat in male athletes from ultrasound and anthropometric measurements versus DXA

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