Telephone-Based Diet and Exercise Coaching and a Weight-Loss Supplement Result in Weight and Fat Loss in 120 Men and Women

2008 ◽  
Vol 23 (2) ◽  
pp. 121-129 ◽  
Author(s):  
Larry A. Tucker ◽  
Amy J. Cook ◽  
Neil R. Nokes ◽  
Troy B. Adams
Keyword(s):  
Weight Loss ◽  
Body Fat ◽  
Dual Energy ◽  
Controlled Experiment ◽  
Obese Women ◽  
Men And Women ◽  
X Ray ◽  
Diet And Exercise ◽  
Telephone Coaching ◽  
Overweight Adults

Purpose. Determine the effects of telephone-based coaching and a weight-loss supplement on the weight and body fat (BF) of overweight adults. Design. Randomized, placebo-controlled experiment with assessments at baseline, 2 months, and 4 months. Setting. Community. Subjects. Sixty overweight or obese men and 60 overweight or obese women, 25 to 60 years old. Intervention. Eleven 30-minute telephone coaching sessions were spaced throughout the study; the initial conversation lasted 60 to 90 minutes. Supplement or placebo capsules were taken daily over the 17 weeks. Measures. Weight was measured using an electronic scale, and BF was assessed using dual energy x-ray absorptiometry. Results. Subjects taking the placebo lost 1.8 + 3.3 kg of weight and 0.7 + 2.2 kg of BF, whereas supplement users lost more: 3.1 + 3.7 kg of weight (F = 4.1, P = .045) and 1.7 + 2.6 kg of BF (F = 4.4, p = .039). Participants receiving no coaching lost 1.8 + 3.3 kg of weight and 0.7 + 2.2 kg of BF, whereas adults receiving coaching lost more: 3.2 + 3.6 kg of weight (F = 4.8, p = .032) and 1.6 + 2.5 kg of BF (F = 4.2, p = .044). Adults receiving both the supplement and coaching had the greatest losses of weight and BF, suggesting an additive effect (F = 3.2, p = .026; F = 2.9, p = .039, respectively). Conclusions. Both treatments, coaching and the supplement, viewed separately and in combination, worked to help subjects lose weight and BF. Adults can be educated and motivated via telephone to change behaviors leading to weight loss, and a weight-loss supplement can be included to increase success.

scholarly journals Comparison of gross body fat-water magnetic resonance imaging at 3 Tesla to dual-energy X-ray absorptiometry in obese women

Obesity ◽  
2013 ◽  
Vol 21 (4) ◽  
pp. 765-774 ◽  
Author(s):  
Heidi J. Silver ◽  
Kevin D. Niswender ◽  
Joel Kullberg ◽  
Johan Berglund ◽  
Lars Johansson ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Body Fat ◽  
Dual Energy ◽  
3 Tesla ◽  
Obese Women ◽  
Resonance Imaging ◽  
X Ray

scholarly journals Comparison of Dual-Energy X-Ray Absorptiometry (DXA) versus a Multi-frequency Bioelectrical Impedance (InBody 770) Device for Body Composition Assessment after a 4-Week Hypoenergetic Diet

2019 ◽  
Vol 4 (2) ◽  
pp. 23 ◽  
Author(s):  
Antonio ◽  
Kenyon ◽  
Ellerbroek ◽  
Carson ◽  
Burgess ◽  
...  
Keyword(s):  
Body Composition ◽  
Energy Intake ◽  
Body Fat ◽  
Fat Mass ◽  
Bioelectrical Impedance ◽  
Dual Energy ◽  
Fat Free Mass ◽  
Percent Body Fat ◽  
Men And Women ◽  
X Ray

The purpose of this investigation was to compare two different methods of assessing body composition (i.e., a multi-frequency bioelectrical impedance analysis (MF-BIA) and dual-energy x-ray absorptiometry (DXA)) over a four-week treatment period in exercise-trained men and women. Subjects were instructed to reduce their energy intake while maintaining the same exercise regimen for a period of four weeks. Pre and post assessments for body composition (i.e., fat-free mass, fat mass, percent body fat) were determined via the MF-BIA and DXA. On average, subjects reduced their energy intake by ~18 percent. The MF-BIA underestimated fat mass and percentage body fat and overestimated fat-free mass in comparison to the DXA. However, when assessing the change in fat mass, fat-free mass or percent body fat, there were no statistically significant differences between the MF-BIA vs. DXA. Overall, the change in percent body fat using the DXA vs. the MF-BIA was −1.3 ± 0.9 and −1.4 ± 1.8, respectively. Our data suggest that when tracking body composition over a period of four weeks, the MF-BIA may be a viable alternative to the DXA in exercise-trained men and women.

scholarly journals Agreement of bioelectrical impedance with dual-energy X-ray absorptiometry and MRI to estimate changes in body fat, skeletal muscle and visceral fat during a 12-month weight loss intervention

2012 ◽  
Vol 109 (10) ◽  
pp. 1910-1916 ◽  
Author(s):  
Kirsi H. Pietiläinen ◽  
Sanna Kaye ◽  
Anna Karmi ◽  
Laura Suojanen ◽  
Aila Rissanen ◽  
...  
Keyword(s):  
Skeletal Muscle ◽  
Weight Loss ◽  
Body Fat ◽  
Visceral Fat ◽  
Bioelectrical Impedance ◽  
Impedance Analysis ◽  
Dual Energy ◽  
Weight Loss Intervention ◽  
Obese Adults ◽  
X Ray

The aim of the present study was to analyse the agreement of bioelectrical impedance analysis (BIA) compared with dual-energy X-ray absorptiometry (DXA) and MRI in estimating body fat, skeletal muscle and visceral fat during a 12-month weight loss intervention. A total of nineteen obese adults (twelve females, seven males) aged 20·2–48·6 years, mean BMI 34·6 (se 0·6) kg/m2, participated in the study. Body fat, skeletal muscle and visceral fat index were measured by BIA (Omron BF-500; Omron Medizintechnik) and compared with DXA (body fat and skeletal muscle) at baseline, 5 and 12 months, and with MRI (visceral fat) at baseline and 5 months. The subjects lost 8·9 (se 1·8) kg (9·0 (se 1·7) %) of body weight during the 12-month intervention. BIA, as compared to DXA, accurately assessed loss of fat (7·0 (se 1·5) v. 7·0 (se 1·4) kg, P= 0·94) and muscle (1·0 (se 0·2) v. 1·4 (se 0·3) kg, P= 0·18). While body fat was similar by the two methods, skeletal muscle was underestimated by 1–2 kg using BIA at each time point. Compared to MRI, BIA overestimated visceral fat, especially in males. BIA and DXA showed high correlations for kg fat, both cross-sectionally and longitudinally (r 0·91–0·99). BIA, compared with DXA and MRI, detected kg muscle and visceral fat more accurately cross-sectionally (r 0·77–0·87 and r 0·40–0·78, respectively) than their changes longitudinally (r 0·24–0·61 and r 0·46, respectively). BIA is at its best when assessing the amount or changes in fat mass. It is a useful method for measuring skeletal muscle, but limited in its ability to measure visceral fat.

scholarly journals Validity and reliability of body composition analysers in children and adults

2008 ◽  
Vol 100 (4) ◽  
pp. 859-865 ◽  
Author(s):  
Nicole E. Jensky-Squires ◽  
Christina M. Dieli-Conwright ◽  
Amerigo Rossuello ◽  
David N. Erceg ◽  
Scott McCauley ◽  
...  
Keyword(s):  
Body Composition ◽  
Body Fat ◽  
Dual Energy ◽  
Moderate Correlation ◽  
Validity And Reliability ◽  
Men And Women ◽  
Percentage Body Fat ◽  
X Ray ◽  
The Mean ◽  
Mean Differences

We tested the validity and reliability of the BioSpace InBody 320, Omron and Bod-eComm body composition devices in men and women (n 254; 21–80 years) and boys and girls (n 117; 10–17 years). We analysed percentage body fat (%BF) and compared the results with dual-energy X-ray absorptiometry (DEXA) in adults and compared the results of the InBody with underwater weighing (UW) in children. All body composition devices were correlated (r 0·54–0·97; P ≤ 0·010) to DEXA except the Bod-eComm in women aged 71–80 years (r 0·54; P = 0·106). In girls, the InBody %BF was correlated with UW (r 0·79; P ≤ 0·010); however, a more moderate correlation (r 0·69; P ≤ 0·010) existed in boys. Bland–Altman plots indicated that all body composition devices underestimated %BF in adults (1·0–4·8 %) and overestimated %BF in children (0·3–2·3 %). Lastly, independent t tests revealed that the mean %BF assessed by the Bod-eComm in women (aged 51–60 and 71–80 years) and in the Omron (age 18–35 years) were significantly different compared with DEXA (P ≤ 0·010). In men, the Omron (aged 18–35 years), and the InBody (aged 36–50 years) were significantly different compared with DEXA (P = 0·025; P = 0·040 respectively). In addition, independent t tests indicated that the InBody mean %BF in girls aged 10–17 years was significantly different from UW (P = 0·001). Pearson's correlation analyses demonstrated that the Bod-eComm (men and women) and Omron (women) had significant mean differences compared with the reference criterion; therefore, the %BF output from these two devices should be interpreted with caution. The repeatability of each body composition device was supported by small CV ( < 3·0 %).

Effect of Weight Loss on Bone Mineral Density Determined by Ultrasound of Phalanges in Obese Women After Roux-en-y Gastric Bypass: Conflicting Results With Dual-Energy X-ray Absorptiometry

2014 ◽  
Vol 17 (4) ◽  
pp. 473-478 ◽  
Author(s):  
Tatiana Pereira Lima ◽  
Carolina Ferreira Nicoletti ◽  
Julio Sergio Marchini ◽  
Wilson Salgado Junior ◽  
Carla Barbosa Nonino
Keyword(s):  
Bone Mineral Density ◽  
Weight Loss ◽  
Gastric Bypass ◽  
Bone Mineral ◽  
Dual Energy ◽  
Obese Women ◽  
Mineral Density ◽  
X Ray

scholarly journals Diagnostic Central Obesity Indexes Cut – Off Point Values Determined with Dual-Energy X-Ray Absorptiometry in Cushing’s and Obese Women

PRILOZI ◽  
2020 ◽  
Vol 41 (3) ◽  
pp. 13-21
Author(s):  
Slavica Shubeska Stratrova ◽  
Sasha Jovanovska Mishevska ◽  
Iskra Bitoska ◽  
Irena Kafedziska
Keyword(s):  
Body Fat ◽  
Abdominal Obesity ◽  
Central Obesity ◽  
Visceral Obesity ◽  
Fat Distribution ◽  
Dual Energy ◽  
Obese Women ◽  
X Ray ◽  
Normal Body ◽  
Diagnostic Criterion

AbstractAim: The aim of this study was to develop quantiative criteria for defining visceral obesity and to establish dual-energy X-ray absorptiometric (DXA) diagnostic cut-off points (CP) for normal and abnormal values of the central obesity indexes (COI) that best differentiate extreme visceral obesity in Cushing’s syndrome (CS) from non CS obese and non obese women.Material and Methods: COI1–4 values calculated as a ratio of android to gynoid tissue mass, fat mass and their % were determined in 4 groups, each consisting of 18 women: 1st group of CS, 2nd group of obese women (O1) not different according to their age and BMI from CS, 3rd group of obese women (O2) with BMI of 35 ± 1.2 kg and 4th group of non obese healthy women (C) with normal BMI. Diagnostic accuracy (DG) of CP values of COI1m-4m indexes of abdominal obesity and CP values of COI1n-4n indexes of normal body fat distribution (BFD) was determined.Results: COI1-4 indexes values were highly significantly different among the 4 examined groups and were significantly highest in CS patients and lowest in group C (p < 0.0001). COI1m-4m CP values differentiated extreme visceral, abdominal obesity in CS with highest DG as well as COI1n-4n CP values differentiated normal BFD in group C. COI1m CP of 0.55 best differentiated CS from O1 for DG of 100%. COI2n of 0.38 best differentiated C from CS and O2 for highest DG of 100% compared to O1 because of the significantly higher BMI and COI1n-4n values in O2 that were associated with more pronounced abdominal obesity and highly significantly positive correlation with BMI.Conclusions: DXA cut-off point values of indexes COI1m-4m and COI1n-4n were established as diagnostic indexes and criteria useful in discovering extreme abdominal and normal BFD. COI1m CP value of 0.55 was discovered as a diagnostic criterion of extreme abdominal obesity and COI2n of 0.38 as a diagnostic criterion of normal BFD that excluded abdominal obesity. The other indexes COI1m-4m and COI1n-4n CP values had also high DG in discovering abdominal and normal body fat distribution.

scholarly journals Comparison of Gross Body Fat-Water Magnetic Resonance Imaging at 3 Tesla to Dual-Energy X-Ray Absorptiometry in Obese Women

Obesity ◽  
2012 ◽  
Author(s):  
Heidi J. Silver ◽  
Kevin D. Niswender ◽  
Joel Kullberg ◽  
Johan Berglund ◽  
Lars Johansson ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Body Fat ◽  
Dual Energy ◽  
3 Tesla ◽  
Obese Women ◽  
Resonance Imaging ◽  
X Ray

Reference curves for body fat (%) for Danish children evaluated by skinfolds and dual-energy X-ray absorptiometry

2013 ◽  
Author(s):  
Christine Wohlfahrt-Veje ◽  
Jeanette Tinggaard ◽  
Annette Mouritsen ◽  
Casper Hagen ◽  
Mikkel Grunnet ◽  
...  
Keyword(s):  
Body Fat ◽  
Dual Energy ◽  
X Ray ◽  
Reference Curves

Relationship between Visceral Fat and PAI-1 in Overweight Men and Women before and after Weight Loss

1999 ◽  
Vol 82 (11) ◽  
pp. 1490-1496 ◽  
Author(s):  
M. Kockx ◽  
R. Leenen ◽  
J. Seidell ◽  
H. M. G. Princen ◽  
T. Kooistra
Keyword(s):  
Weight Loss ◽  
Fat Mass ◽  
Visceral Fat ◽  
Linear Regression Analysis ◽  
Energy Deficit ◽  
Obese Women ◽  
Plasminogen Activator Inhibitor 1 ◽  
Men And Women ◽  
Total Fat ◽  
Pai 1

SummaryThis study was aimed at evaluating the relationship between visceral fat accumulation and plasma plasminogen activator inhibitor-1 (PAI-1) levels in healthy, obese men and women undergoing weight loss therapy. The subjects, 25 men and 25 premenopausal women, aged between 26 and 49 years, with an initial body mass index between 28 and 38 kg/m2, received a controlled diet for 13 weeks providing a 4.2 MJ/day energy deficit. Magnetic resonance imaging was used to measure visceral and subcutaneous abdominal fat. Our results show that before weight loss visceral fat was significantly correlated with PAI-1 in men (r = 0.45; p <0.05), but not in women (r = -0.15; ns). The association between visceral fat and PAI-1 in men remained significant after adjustment for age and total fat mass, and multiple linear regression analysis showed a significant independent contribution of visceral fat to plasma PAI-1 levels. Both visceral fat areas and PAI-1 levels decreased significantly with weight loss in both men and women. Changes in visceral fat area were related to changes in PAI-1 in women (r = -0.43; p = 0.05) but not in men (r = -0.01; ns); however, this association in women disappeared after adjustment for total fat mass. We conclude that there is a relationship between visceral fat and PAI-1 in obese men but not in obese women, and that PAI-1 levels decrease substantially (52%) by weight loss, but this change is not related to changes in visceral fat mass per se.

Sign in / Sign up

Export Citation Format

Share Document