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News in brief June 16th,2014

The effect of holiday weight gain on body weight. Schoeller DA. Physiol Behav. 2014 Mar 21. 

USA

 

During the summer holidays, people run a high risk of gaining weight: on average, thin individuals gain about 5%, and obese subjects anything up to 17 % of their initial weight. This extra weight consisting mainly of fat contributes considerably to the annual weight gain  observed in the population of the USA. 

 

Normal weight obesity and functional outcomes in older adults. Batsis JA, Sahakyan KR, Rodriguez-Escudero JP, Bartels SJ, Lopez-Jimenez F. Eur J Intern Med. 2014 Jun 5.

 

Roughly 28% of men and 31% of women over 60 years of age have excess abdominal fat although their BMI is normal. These individuals, especially women, have difficulty in performing physical tasks such as walking 400 m, going up 10 steps without stopping, bending and kneeling down, getting up from a chair and carrying a 4-kg weight. The BMI should therefore not be regarded as the only valid index to obesity.

 

 

Weight reduction can prevent the progression of obstructive sleep apnea: an explanatory analysis of a 5-year observational follow-up trial. Tuomilehto H, Seppä J, Uusitupa M, Peltonen M, Martikainen T, Sahlman J, Kokkarinen J, Randell J, Pukkila M, Vanninen E, Tuomilehto J, Gylling H; Kuopio Sleep Apnea Group. Sleep Med. 2014 Mar;15(3):329-35.

 

Losing at least 5% of the body weight and maintaining this weight loss for at least 5 years improves obstructive sleep apnea syndrome as well as preventing its progression by  80%: this suggests a means of treating obese patients with moderately severe sleep apnea.

 

 

 

Weight-loss maintenance for 10 years, based on the National Weight Control Registry. Thomas JG, Bond DS, Phelan S, Hill JO, Wing RR. Am J Prev Med. 2014 Jan;46(1):17-23.

 

The National Weight Control Registry was used to determine how 2 886 subjects managed to largely maintain their weight loss for more than 10 years. A large initial weight loss and a long maintenance period were found to be favourable factors, whereas few physical activities and few leisure activities, restriction/disinhibition, weighing oneself too frequently and a diet with a high fat content tend to favour weight regain. 

 

 

Perceived judgment about weight can negatively influence weight loss: a cross-sectional study of overweight and obese patients. Gudzune KA, Bennett WL, Cooper LA, Bleich SN. Prev Med. 2014 May;62:103-7.

 

The results of this study on 600 adults show that patients attempting to lose weight with their GP’s agreement managed to lose more than 10% of their body weight less successfully than the others when they felt judged by their physician because of their weight.

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