Gale Encyclopedia of Surgery: Weight management Definitions Weight management refers to a set of practices and behaviors that are necessary to keep one's weight at a healthful level. It is preferred to the term "dieting," because it involves more than regulation of food intake or treatment of overweight people.
One contributing factor may be the difference in weight loss success between men and women. A systematic review was conducted to determine whether the effectiveness of weight loss interventions differs between men and women.
Randomized controlled trials published up until March were included. Effect sizes Hedges' g were used to examine the difference in weight outcomes between men and women.
A total of 58 studies met the eligibility criteria with 49 studies of higher quality included in the final data synthesis. Eleven studies that directly compared weight loss in men and women reported a significant sex difference.
Ten of these reported that men lost more weight than women; however, women also lost a significant amount of weight. There is little evidence from this review to indicate that men and women should adopt different weight loss strategies.
Current evidence supports moderate energy restriction in combination with exercise for weight loss in both men and women. Sex differences, systematic review, weight loss Introduction Overweight and obesity are now the fifth leading risk factors contributing to global mortality 1. Each year, approximately 2.
With the prevalence continuing to rise both in Australia 3 and worldwide 1effective population-based strategies to reduce this burden need to be identified.
Overweight and obesity are defined by excessive accumulation of body fat 1often contributing to the development of chronic diseases such as cardiovascular disease CVD and type 2 diabetes 4. Weight loss remains the primary strategy for reducing the risks associated with overweight and obesity, but the effectiveness of weight loss programmes is variable, within and between programmes 5.
One possible explanation for this variation could be the difference in weight loss success between men and women and the lack of direct comparison between them.
There are a number of characteristics that differ between men and women that may contribute to the difference in weight loss success. Characteristics favouring greater weight loss in men include a greater percentage of muscle mass compared with fat mass, contributing to higher resting and total energy expenditure 67 and a greater potential impact of exercise on weight loss 8.
On the contrary, women have higher concentrations of leptin, an appetite regulation hormone that reduces energy intake 9. While research supports these points, there is still no consensus on whether these physiological mechanisms lead to differences in weight loss success between men and women.
Other considerations contributing to weight loss variability between men and women include the study design and nature of the lifestyle interventions implemented in the current weight loss interventions. There are a number of systematic reviews that have investigated the effectiveness of lifestyle interventions with a focus on either men or women, or men and women combined 10 — 14but this is the first to focus on the differences in weight loss between men and women.
A systematic review published in sought to determine intervention characteristics associated with weight loss and maintenance in men The review by Young et al.
However, with few studies identified, the authors could not determine a particular type of intervention that was more beneficial for weight loss Of the studies conducting reviews of men and women combined, reduced energy diets, diet plus exercise, weight loss medications and weight loss surgery have been found to be effective for weight loss, with advice-only or exercise-only interventions less effective 10 — Although pharmacotherapy and surgical interventions have been shown to result in large weight losses 15 — 18the safety of weight loss medications and the sustainability of surgery as a population-based strategy have come under scrutiny, along with the cost of these options, both short- and long-term Therefore, this current review will address only lifestyle interventions, such as diet and exercise, along with meal replacements and nutritional supplements, given these are widely used in conjunction with lifestyle interventions.
Although published literature on weight loss interventions is vast, there is still no consensus on which lifestyle interventions are best for weight loss, particularly for men or women.
Therefore, the aim of this review was to determine whether the effectiveness of particular weight loss interventions differs between men and women, and if they do, which are more effective for men or for women.
Studies were included if participants had existing co-morbidities associated with overweight and obesity such as type 2 diabetes and CVD, but excluded if they were taking medications known to influence weight e. Studies were required to have a primary aim of weight loss. Interventions that were surgical or used pharmacological agents as methods of weight loss were excluded.
Search strategy Published and unpublished studies until March were identified from a literature search of nine online databases. Bibliographies of selected studies were also searched. The undertaking of this review adhered to PRISMA preferred reporting items for systematic reviews and meta-analyses guidelines The first phase of study identification included assessment of study inclusion based upon the title and abstract.
Full texts were retrieved for those papers seen to meet inclusion criteria from the title and abstract.
Two assessors independently decided on inclusions based upon the full texts. If there was disagreement, a third independent reviewer was used. Assessment of methodological quality Two independent reviewers assessed the methodological quality of studies using a critical appraisal tool from the American Dietetic Association Appendix 1 Effects of Diet and Exercise on Body Composition During Weight Loss Addition of exercise to a weight loss program favorably modifies the composition of the weight lost in the direction of greater fat loss.
belly, saddle bags or bat wings, weight loss is accomplished in the same manner; through a full-body weight-loss routine. Solely super exercising on area in the hopes to reduce fat from it, doesn't work. You must lose fat from your entire body to see your arms, legs and belly also slim down.
Wilson reviewed the scientific An essay on management and the body shop research on binge eating and found a description on the true effects of dieting and weight loss practices in the human body the Issuu is a digital publishing platform that a description on the true effects of dieting and weight loss practices in the human body makes An.
The set-point theory of weight control is based upon a feedback system, suggesting that the individual is programmed to be a certain body weight and that the body will always attempt to maintain that weight by regulating hunger and metabolism. Stratifying by sex, weight status, race/ethnicity, and education, the hypothesis that weight loss practices in the group remained unchanged between and was tested using a t test.
of women with a body mass index (BMI) "normal" and 15% of women "thin" (BMI practices, released on November 25 by the National.