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Ben-El Berkovich, Alon Eliakim, Dan Nemet, Aliza Hannah Stark and Tali Sinai

Athletes competing in individual sports such as judo are categorized by weight. Before competitions, weight cutting is common. This cross-sectional study was designed to characterize and determine the prevalence of rapid weight loss (RWL) among adolescent judo competitors. Male athletes aged 12- to 17-years old (N = 108) were recruited from local judo teams. Each participant completed a validated questionnaire regarding RWL practices. Anthropometric measurements were also performed. Average age was 14.6 ± 1.6 years and all participants were of normal body mass index (BMI). RWL was practiced by 80% of the athletes before competition, beginning at an average age of 12.5 ± 2.2 years with the highest prevalence (~94%) in the oldest group of judoka (16–17.9 years). Precompetition weight loss duration was 8 ± 5.4 days, with an average weight reduction of 1.5 ± 1.1 kg. The number of weight loss efforts per athlete in the past season was 2.8 ± 2.2. RWL was achieved by increased physical activity (82.6%), skipped meals (56.3%), or fasting at least once (47%). Two-thirds of the athletes indicated that their coaches were the most influential figure in their decision to lose weight before competition. RWL is highly prevalent in adolescent judo competitors. The methods used by these athletes can potentially lead to significant health risks including compromised nutritional status, diminished physical performance and impaired growth and development. It is of great importance to insure that those who guide young adults in weight loss for competitive sports have the knowledge and understanding to make safe recommendations and appropriate decisions regarding achieving specific weight goals.

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Victoria Anne Catenacci, Lorraine Odgen, Suzanne Phelan, J. Graham Thomas, James Hill, Rena R. Wing and Holly Wyatt

Background:

The National Weight Control Registry (NWCR) was established to examine characteristics of successful weight loss maintainers. This study compares the diet and behavioral characteristics and weight regain trajectories of NWCR members with differing physical activity (PA) levels at baseline.

Methods:

Participants (n = 3591) were divided into 4 levels of self-reported PA at registry entry (< 1000, 1000 to < 2250, 2250 to < 3500, and ≥ 3500 kcals/week). We compared self-reported energy intake (EI), macronutrient composition, eating behaviors (dietary restraint, hunger, and disinhibition), weight loss maintenance strategies, and 3 year weight regain between these 4 activity groups.

Results:

Those with the highest PA at registry entry had lost the most weight, and reported lower fat intake, more dietary restraint, and greater reliance on several specific dietary strategies to maintain weight loss. Those in the lowest PA category maintained weight loss despite low levels of PA and without greater reliance on dietary strategies. There were no differences in odds of weight regain at year 3 between PA groups.

Conclusions:

These findings suggest that there is not a “one size fits all strategy” for successful weight loss maintenance and that weight loss maintenance may require the use of more strategies by some individuals than others.

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Gina L. Trakman, Adrienne Forsyth, Kane Middleton, Russell Hoye, Sarah Jenner, Stephen Keenan and Regina Belski

six unidimensional subsections: weight management ( n  = 12), macronutrients ( n  = 30), micronutrients ( n  = 13), sports nutrition ( n  = 13), supplementation ( n  = 13), and alcohol ( n  = 8). The sports nutrition section includes items on hydration ( n  = 4) and nutrition before ( n  = 1), during

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Damir Zubac, Hrvoje Karnincic and Damir Sekulic

to extensive body weight manipulations. 12 Numerous studies have investigated the problem of weight cutting in Olympic and college wrestling, 8 , 13 judo, 6 , 7 and other combat sports (ie, jiu-jitsu, taekwondo, and karate). 14 Meanwhile, data on weight-management patterns and weight cutting among

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Erik A. Willis, Amanda N. Szabo-Reed, Lauren T. Ptomey, Jeffery J. Honas, Felicia L. Steger, Richard A. Washburn and Joseph E. Donnelly

HIFT is a popular form of exercise, there is limited research regarding HIFT 17 , 18 and it is not commonly endorsed as a mode of meeting recommended physical activity levels or for weight management. This may be partially due to lack of information in the literature regarding objectively measured

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Dianne Neumark-Sztainer, Richard F. MacLehose, Allison W. Watts, Marla E. Eisenberg, Melissa N. Laska and Nicole Larson

Obesity in young adults is of public health concern, given its high prevalence and potential adverse health consequences. 1 – 3 Innovative strategies are needed that are widely acceptable and effective in long-term weight management. 4 Given that some research suggests that overweight individuals

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Emily L. Mailey, Deirdre Dlugonski, Wei-Wen Hsu and Michelle Segar

included the following 6 subscales from the EMI-2: stress management, revitalization, ill health avoidance, positive health, weight management, and appearance. The enjoyment subscale was initially included but was ultimately omitted because it overlapped significantly with the revitalization subscale. For

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Krista Schroeder, Martha Y. Kubik, Jiwoo Lee, John R. Sirard and Jayne A. Fulkerson

August 2014 to 2018 as part of the Students, Nurses, and Parents Seeking Healthy Options Together study, a randomized controlled trial of an elementary school-based healthy weight management intervention set in the Minneapolis/St. Paul metropolitan area targeting 8- to 12-year-old children. Eligibility

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Sarah G. Sanders, Elizabeth Yakes Jimenez, Natalie H. Cole, Alena Kuhlemeier, Grace L. McCauley, M. Lee Van Horn and Alberta S. Kong

reported, resulting in widely varying estimates of average daily MVPA. 8 – 13 The objective of this study is to describe the PA levels measured by wrist accelerometer in a group of 930 adolescents at baseline of an obesity prevention and weight management cluster-randomized controlled clinical trial in

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Dana K. Voelker and Justine J. Reel

as a form of weight management. Consistent with the strategies reported by male collegiate athletes ( Galli, Petrie, Reel, Greenleaf, & Carter, 2015 ), the male skaters in this study reported muscle-building behaviors, exercise, and dietary restriction as a means of attaining and maintaining the body