Validation de la mesure segmentaire de la composition corporelle en comparaison avec la DEXA : intérêt de la mesure de la masse grasse tronculaire

Brun, J.‐F.; Guiraudou, M.; Mardemootoo, C.; Traoré, A.; Raingeard, I.; Chalançon, A.; Avignon, A.

doi:10.1016/j.scispo.2012.09.002

Cited by 19 publications

(6 citation statements)

References 3 publications

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“…This device measures total resistance of the body to an alternative electric current of 50 kHz [17][18]. Body fat mass, fat-free mass were calculated in each segment of the body according to manufacturer's database-derived disclosed equations, and total water with published equations using the classical cylindric model and Hanai's mixture theory [19].…”

Section: Bioelectrical Impedance Measurementsmentioning

confidence: 99%

Long term (3 years) weight loss after low intensity endurance training targeted at the level of maximal muscular lipid oxidation

Drapier¹,

Chérif²,

Richou³

et al. 2018

Integr Obesity Diabetes

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Among various strategies of exercise intensification proposed for the management of obesity and type 2 diabetes, endurance training remains a well recognized procedure. When targeted with exercise calorimetry at levels where lipid oxidation is maximal (LIPOXmax), it has been shown to improve mitochondrial respiration, blood glucose control and blood lipids, low grade inflammation and body composition, even at low weekly volume. We investigated in this study its long term effects over 3 years (3x45 min/week) compared to low fat diet without exercise (LFD) and a control group without any exercise or diet (C). 88 subjects that continued LIPOXmax training more than 1 year (23 men, 65 women, age=20-85 years, body mass index =23-48 kg/m 2 ) were compared to two matched groups (C and LFD). While C gained weight over this period, LFD and LIPOXmax group lose weight. Weight loss at 1 year was the same in exercise and diet group, but at 2 years and even more at 3 years there was a gradual weight regain in LFD so that results were better (p<0.01) in the exercise group who maintained weight loss in 80% of subjects. Average weight loss was -2,95 ± 0,37 kg after 3 months, -4,56 ± 0,68 kg after 1 year, -5,31 ± 1,26 kg at 2 years and -8,49 ± 2,39 kg at 3 years. The level at which LIPOXmax occurs is a predictor of weight loss at 1 year (r=-0,346 p<0,001) but not at 2 and 3 years. Weight loss at 3 months is a predictor of weight loss at 1 year (r=0,523 p<0,001) but not at 2 and 3 years. At 1 year subjects with LIPOX max in the lower quartile (<35% VO2max n=23) lose less weight than the others (-2.3 ± 0.98 vs -5.4 ± 0.83 p=0,05) but this difference vanishes over time. This study shows that this low intensity exercise training maintains its weight-reducing effect 3 years while diet is no longer efficient, and that this effect is initially related to muscular ability to oxidize lipids but that metabolic and behavioral adaptations have been further developed and contribute to a long lasting effect.By contrast, low intensity endurance, that promotes lipid oxidation, has been proposed since almost twenty years as a promising strategy against obesity [8][9][10][11][12] .When targeted with exercise calorimetry at levels where lipid oxidation is maximal (LIPOXmax), it has been shown to improve mitochondrial respiration [13], blood glucose control and blood lipids, low grade inflammation and body composition, even at low weekly volume [14]. Surprisingly, this approach generated less literature, perhaps because its weight-reducing effects over the short term, although significant, were not spectacular.However, its prolonged use has been shown to result in a sustained weight loss [15] which contrasts with the quite constant weight regain observed in almost all classical strategies [16]. In this study we aimed at determining over 3 years the kinetics of weight evolution of patients trained with low volumes of low intensity exercise targeted by exercise calorimetry in comparison with controls who did not change their lifestyle and class...

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Section: Bioelectrical Impedance Measurementsmentioning

confidence: 99%

Long term (3 years) weight loss after low intensity endurance training targeted at the level of maximal muscular lipid oxidation

Drapier¹,

Chérif²,

Richou³

et al. 2018

Integr Obesity Diabetes

View full text Add to dashboard Cite

show abstract

“…Prior to the exercise-test, subjects' body composition was assessed with bioimpedance analysis with a six terminal impedance plethismograph BIACORPUS RX 4000 Biacorpus RX4000, (SoAGIL DEVELOPPEMENT, 8 avenue Jean-Jaurès F-92130 Issy-les-Moulineaux, France) with data analysis with the software BodyComp 8.4. This device measures total resistance of the body to an alternative electric current of 50 kHz [20,21]. Body fat mass and fat-free mass were calculated in each segment of the body according to manufacturer's database-derived disclosed equations, and total water with published equations using the classical cylindric model and Hanai's mixture theory [22].…”

Section: Bioelectrical Impedance Measurementsmentioning

confidence: 99%

Exercise targeted at the level of maximal lipid oxidation (LIPOXmax) improves weight loss, decreases orexigenic pulsions and increases satiety after sleeve gastrectomy

Brun¹,

Lasteyrie²,

Hammoudi³

et al. 2019

Glob J Obes Diabetes Metab Syndr

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Background and Purpose: Sleeve gastrectomy is a major therapy of morbid obesity, but recent reports suggest that its effects on weight loss are improved when patients increase their muscular activity, while a weight regain may occur in more than 30% of patients after 40 months. Exercise is an effective mean of preventing weight regain. In a recent preliminary study, we reported that exercise training targeted at the level of maximal lipid oxidation (LIPOXmax) improved weight loss and weight stabilization at 30 months. This study extends this previous one and aims at describing the kinetics of weight loss on 60 months after sleeve in people performing or not a LIPOXmax training and to see whether this variety of training exerts a satietogenic effect in sleeve patientsas has been evidenced in nonoperated obese subjects. Methods: We present a longitudinal study of sleeve associated or not with regular exercise prescribed and followed over 60 months. Two groups of obese patients matched for baseline BMI and age were compared. The fi rst group was treated by sleeve gastrectomy alone and patients did not increase their muscular activity. The second group practiced 3x45 min/week endurance exercise targeted at the level of maximal lipid oxidation (LIPOXmax) after sleeve gastrectomy. Findings: In a series of 43 patients (splitted into two matched subgroups, 20 trained, and 23 untrained) we confi rm that LIPOXmax training associated to sleeve induces a greater weight loss than sleeve alone (p=0.001). In a subset of 10 subjects (6 women and 4 men) we show that the fi rst sessions of of training decrease all items related to hunger (p<0,05) and increase satiety (p<0,05). However, the intensity of these effects is lower than previously observed in nonoperated obese subjects. Conclusion: Therefore, the long lasting, moderate, and slightly progressive weight-reducing action of LIPOXmax endurance training is observed after sleeve gastrectomy and synergistically adds its effect to that of surgery. This effect is associated with a decrease in orexigenic drive and an improvement of satiety.

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“…Body composition, i.e., the measurement of fat mass and Fat Free Mass (FFM), was assessed with bioimpedance analysis with a six-terminal impedance plethysmograph BIACORPUS RX4000 BiacorpusRX4000, (Healthnesslink,79 8 avenue Jean-Jaurès 92130 Issy-les-Moulineaux, France) with data analysis with the software BodyComp8.4. This device measures total resistance of the body to an alternative electric current of 50kHz [27,28]. Body fat mass, fat-free mass was calculated in each segment of the body according to manufacturer's database-derived disclosed equations, and total water with published equations using the classical cylindric model and Hanai's mixture theory [29].…”

Section: Measurementsmentioning

confidence: 99%

Purified egg protein supplementation has beneficial effects on body composition, metabolism and eating behavior and results in a more sustained weight loss than low fat diet

Brun¹,

Varlet‐Marie²,

Fidani³

et al. 2018

Integr Obesity Diabetes

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Background: An increasing body of literature emphasizes the interest of moderate enrichment in protein for treating obesity and its metabolic consequences. However, egg proteins that are known to have the highest biological value have not been studied in this context. We investigated in self-restricted obese individuals with low Protein Intake (PI) (< 0.7 g.kg -1 .d -1 ) the effects of increasing PI up to 1.5 g.kg -1 .d -1 on body weight, body composition, eating behavior, Resting Metabolic Rate (RMR) and kidney function.Randomized controlled trial over 2 months: Twelve subjects were given daily supplements of a formula of Purified high biological value Egg Protein (PEP) (Ovamine ® Nutreven laboratories, Paris) to achieve this level of PI while ten matched controls were given a simple Low-Fat High Protein Diet (LFHPD). Subjects were tested before and after 2 months. PEP resulted in increased PI (1.39 ± 0.07 vs 0.65 ± 0.07 g.kg -1 .d -1 p < 0.01), higher percentage of protein (+9.6%, p < 0.01) and lower percentage of lipids (-13,6%, p < 0.01) in diet, while these values were not significantly modified with LFHPD. Analogic-numeric scales indicated that appetite increased under LFHPD and decreased under PEP (p = 0.006) with a subjective feeling of eating less (p < 0.01), yet in both groups, total calculated energy intake was not decreased. Under PEP (but not LFHPD) there was a decrease in weight (-1.97 ± 0.5 kg p < 0.01) and body mass index (-0.74 ± 0,18%, p < 0.01) due to a decrease in fat mass only (-3.2 ± 1.3 kg p < 0,05). There was in both groups a nonsignificant tendency to reduce RMR with no change in RER. Creatinine clearance increased by 10% under PEP (before: 149 ± 19; after: 162 ± 22 ml.min -1 , p = 0.05) but not under LFHPD. Microalbuminuria was unchanged.Controlled follow-up trial over 18 months: 337 subjects divided into three matched groups followed over 18 months: no change in diet or lifestyle (n = 69); LFD (n = 171), and PEP (n = 97) targeting 1.2 g.kg -1 .d -1 protein with the same purified egg protein preparation of high biological value. In the group of control subjects (n = 58) there was a gradual weight increase up to +8.58 ± 0.56 % of initial weight on the 18th month, while subjects on low fat diet had lost -5.55 ± 1.31 and those receiving moderate enrichment in protein had lost -8.07 ± 1.58. The initial drop-out at 1 month is -19% with low fat diet and -15% with moderate enrichment in protein. After 6 months it is -57% with low fat diet and -47% with moderate enrichment in protein. During the first 6 months the curves of low-fat diet and protein supplementation are almost overlapped but after 8 months the difference becomes significant. At 18 months, subjects on low fat diet have lost -5.95 ± 1.82 and those receiving moderate enrichment in protein have lost -8.05 ± 1.87 (p = 0.023). On the whole moderate enrichment in protein induces a weight loss > 10% in 18% of the subjects and a weight loss > 5-10 in 22% of them. Visual analogic scales evidence in receiving egg protein a decrease in appeti...

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Validation de la mesure segmentaire de la composition corporelle en comparaison avec la DEXA : intérêt de la mesure de la masse grasse tronculaire

Cited by 19 publications

References 3 publications

Long term (3 years) weight loss after low intensity endurance training targeted at the level of maximal muscular lipid oxidation

Long term (3 years) weight loss after low intensity endurance training targeted at the level of maximal muscular lipid oxidation

Exercise targeted at the level of maximal lipid oxidation (LIPOXmax) improves weight loss, decreases orexigenic pulsions and increases satiety after sleeve gastrectomy

Purified egg protein supplementation has beneficial effects on body composition, metabolism and eating behavior and results in a more sustained weight loss than low fat diet

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