Increased Resting Energy Expenditure/Body Weight and Decreased Respiratory Quotient Correlate with Satisfactory Weight Loss After Sleeve Gastrectomy: a 6-Month Follow-Up

2020 ◽  
Vol 30 (4) ◽  
pp. 1410-1416 ◽  
Author(s):  
Kun Li ◽  
Lei Zheng ◽  
Jing Guo ◽  
Wentao Shi ◽  
Feng Zhao ◽  
...  
Keyword(s):  
Weight Loss ◽  
Body Weight ◽  
Sleeve Gastrectomy ◽  
Energy Expenditure ◽  
Respiratory Quotient ◽  
Resting Energy Expenditure ◽  
Resting Energy

scholarly journals Evaluation of Resting Energy Expenditure in Subjects with Severe Obesity and Its Evolution After Bariatric Surgery

2021 ◽  
Author(s):  
Enzamaria Fidilio ◽  
Marta Comas ◽  
Miguel Giribés ◽  
Guillermo Cárdenas ◽  
Ramón Vilallonga ◽  
...  
Keyword(s):  
Bariatric Surgery ◽  
Weight Loss ◽  
Energy Expenditure ◽  
Severe Obesity ◽  
Resting Energy Expenditure ◽  
Successful Weight Loss ◽  
The Impact ◽  
The Relationship ◽  
Resting Energy

Abstract Purpose One major determinant of weight loss is resting energy expenditure (REE). However, data regarding REE is scarce in patients with severe obesity (SO)—BMI>50kg/m2. Most studies used equation in order to estimate REE and not indirect calorimetry (IC) (gold standard). Additionally, there is no reliable data on the impact of bariatric surgery (BS) on REE. Objectives (a) To evaluate the REE in patients with SO; (b) to compare REE measured by IC (mREE) to that calculated by Mifflin St-Jeor equation (eREE); (c) to evaluate the impact of BS on REE and the relationship with evolution post-BS. Material and Methods Single-center observational study including consecutive patients with SO between January 2010 and December 2015, candidates for BS. mREE was determined at baseline, and 1 and 12 months post-BS by IC, using a Vmax metabolic monitor. Results Thirty-nine patients were included: mean age 46.5±11.77 years, 64.1%women. Preoperative mREE was 2320.38±750.81 kcal/day. One month post-BS, the mREE significantly decreased (1537.6 ± 117.46 kcal/day, p = 0.023) and remained unchanged at 12 months (1526.00 ± 123.35 kcal/day; p =0.682). Reduction in mREE after the BS was a predictor of reaching successful weight loss (nadir) and weight regain (5 years follow-up) (AUCROC of 0.841 (95%CI [0.655–0.909], p=0.032) and AUCROC of 0.855 (95% CI [0.639–0.901]), p= 0.027, respectively). eREE was not valid to identify these changes. Conclusion In patients with SO, a significant reduction of mREE occurs 1 month post-BS, unchanged at 12 months, representing the major conditioning of successful weight loss and maintenance post-BS. Graphical abstract

scholarly journals Impact of Protein Intake during Weight Loss on Preservation of Fat-Free Mass, Resting Energy Expenditure, and Physical Function in Overweight Postmenopausal Women: A Randomized Controlled Trial

Obesity Facts ◽  
2021 ◽  
pp. 1-12
Author(s):  
Isabell Englert ◽  
Anja Bosy-Westphal ◽  
Stephan C. Bischoff ◽  
Kathrin Kohlenberg-Müller
Keyword(s):  
Weight Loss ◽  
Energy Expenditure ◽  
Physical Function ◽  
Postmenopausal Women ◽  
Protein Intake ◽  
Resting Energy Expenditure ◽  
Fat Free Mass ◽  
The Impact ◽  
Resting Energy

<b><i>Introduction:</i></b> Weight loss in old age increases the risk of sarcopenia caused by the age-related reduction of fat-free mass (FFM). Due to the strong correlation between FFM and resting energy expenditure (REE), the maintenance of this must also be considered. Besides, the physical function (PF) must be maintained. <b><i>Objective:</i></b> The impact of protein intake on changes in FFM, REE, and PF during weight loss in overweight postmenopausal women was investigated. <b><i>Methods:</i></b> Fifty-four postmenopausal women (BMI 30.9 ± 3.4; age 59 ± 7 years) were randomized into 2 groups receiving energy-restricted diets with either 0.8 g (normal protein; NP) or 1.5 g protein/kg body weight (high protein; HP) for 12 weeks, followed by a 6-month follow-up phase with an ad libitum food intake. FFM, REE, and PF (strength, endurance, and balance) were measured at baseline, after weight loss, and after follow-up. <b><i>Results:</i></b> Forty-six women completed the weight loss intervention and 29 were followed up. The weight loss was –4.6 ± 3.6 kg (HP) and –5.2 ± 3.4 kg (NP; both <i>p</i> &#x3c; 0.001) and the weight regain during follow-up was 1.3 ± 2.8 kg (HP; <i>p</i> = 0.03) and 0.4 ± 2.5 kg (NP; <i>p</i> = 0.39), with no differences between groups. Similar decreases in FFM (–0.9 ± 1.1 [HP] vs. –1.0 ± 1.3 kg [NP]) and REE (–862 ± 569 [HP] vs. –1,000 ± 561 kJ [NP]; both <i>p</i> &#x3c; 0.001) were observed in both groups. During follow-up, no changes in FFM were detected in either group, whereas in the NP group the REE increased again (+138 ± 296; <i>p</i> = 0.02). The main determinants of FFM loss were the energy deficit and the speed of weight loss. In the NP group, the Short Physical Performance Battery score improved with weight loss (+0.6 ± 0.8; <i>p</i> &#x3c; 0.001) and handgrip strength decreased (–1.7 ± 3.4 kg; <i>p</i> &#x3c; 0.001), whereas no changes were observed in the HP group. <b><i>Conclusions:</i></b> An HP weight-loss diet without exercise had no impact on preservation of FFM and REE but may help to maintain muscle strength in postmenopausal women.

Changes in Resting Energy Expenditure and Body Composition after Weight Loss following Roux-en-Y Gastric Bypass

2007 ◽  
Vol 17 (5) ◽  
pp. 608-616 ◽  
Author(s):  
Fernando Carrasco ◽  
Karin Papapietro ◽  
Attila Csendes ◽  
Gabriela Salazar ◽  
Constanza Echenique ◽  
...  
Keyword(s):  
Weight Loss ◽  
Gastric Bypass ◽  
Body Composition ◽  
Energy Expenditure ◽  
Resting Energy Expenditure ◽  
Resting Energy

Resting energy expenditure in girls with Turner syndrome

2017 ◽  
Vol 30 (3) ◽  
Author(s):  
Gerhard Binder ◽  
Laura Frank ◽  
Julian Ziegler ◽  
Gunnar Blumenstock ◽  
Roland Schweizer
Keyword(s):  
Energy Expenditure ◽  
Short Stature ◽  
Turner Syndrome ◽  
Resting Energy Expenditure ◽  
Bioelectrical Impedance ◽  
Fat Free Mass ◽  
Gh Treatment ◽  
Age Related ◽  
Resting Energy

AbstractBackground:Knowledge concerning energy metabolism in Turner syndrome (TS) is lacking. We compared the resting energy expenditure per fat-free mass (REE/FFM) in TS with other girls with short stature treated with growth hormone (GH) and age-related controls.Methods:We measured prospectively REE by spirometry under fasting conditions in the morning in 85 short prepubertal girls at the start of GH treatment. Diagnoses were TS (n=20), GH deficiency (GHD) (n=38) and small for gestational age (SGA) short stature (n=27). Additionally, 20 age-related controls were studied. Mean ages were 8.3 (TS), 7.1 (GHD), 6.9 (SGA) and 8.5 years (controls). Mean heights were −2.90 (TS), −3.32 (GHD), −3.69 (SGA) and −0.03 standard deviation scores (SDS) (controls). FFM was measured by bioelectrical impedance analysis (BIA).Results:At the start of GH girls with TS showed insignificantly higher REE per FFM (REE/FFM) (mean±SD; 65±9 kcal/kg×day) than did the other female patients (62±9 kcal/kg×day) (p>0.23). The healthy controls had significantly lower REE/FFM (35±4 kcal/kg×day) (p<0.001). Follow-up examination of the patients after 6 or 12 months revealed decreasing REE/FFM in TS (62±9 kcal/kg×day) resulting in comparable REE/FFM in all three patient groups.Conclusions:At baseline short girls with TS had insignificantly higher REE/FFM than short children with SGA or GHD, but in follow-up this difference was not detectable any more. Future studies are necessary to understand this observation.

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