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Michael Gundill a toujours raison

21/09/2014 | Etudes Compléments alimentaires et Etudes Perte de poids et Etudes Anti-âge


La “science” me donne raison

The Influence of Nighttime Feeding of Carbohydrate or Protein Combined with Exercise Training on Appetite and Cardiometabolic Risk in Young Obese Women

Michael J Ormsbee         Physiologie appliquée, nutrition et métabolisme, Publié sur le Web 16 September 2014.

Single macronutrient intake prior to sleep reduces appetite but may negatively impact insulin sensitivity in sedentary obese women. The present study examined the additive impact of nighttime feeding of whey (WH), casein (CAS), or carbohydrate (CHO) combined with exercise training on appetite, cardiometabolic health and strength in obese women.

Thirty-seven sedentary obese women (WH, n=13, body mass index (BMI) 34.4 ± 1.3 kg/m2; CAS, n=14, BMI 36.5 ± 1.8 kg/m2; CHO, n=10, BMI 33.1 ± 1.7 kg/m2) consumed WH, CAS, or CHO (140-150 kcals/serving), every night of the week, within 30 minutes of sleep, for four weeks. Supervised exercise training (two days of resistance training (RT) and one day of high-intensity interval training (HIIT)) was completed three days per week. Pre and post testing measurements included: appetite ratings, mood state, resting metabolic rate, fasting lipids, glucose, and hormonal responses (insulin, leptin, adiponectin, hs-CRP, IGF-1 and cortisol), body composition, and strength. Nighttime intake of CAS significantly (p

<0.05) increased morning satiety (pre 25 ± 5, post 41 ± 6) more than WH (pre 34 ± 5, post 35 ± 6) or CHO (pre 40 ± 8, post 43 ± 7). Exercise training increased lean mass and strength, decreased body fat, and improved mood state in all groups. No other differences were noted.

Nighttime feeding of CAS combined with exercise training increased morning satiety more than WH or CHO. Nighttime feeding for four weeks did not impact insulin sensitivity (assessed via HOMA-IR) when combined with exercise training in obese women.

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