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Daniel das Virgens Chagas and Luiz Alberto Batista

Adequate motor coordination ability is not only a key factor in children’s general development ( D’Hondt et al., 2013 ); it is also associated with health-related gains ( Chagas & Batista, 2017 ). Previous research has shown motor coordination skills to be negatively associated with body fat

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Asunción Ferri-Morales, Marcus Vinicius Nascimento-Ferreira, Dimitris Vlachopoulos, Esther Ubago-Guisado, Ana Torres-Costoso, Augusto Cesar F. De Moraes, Alan R. Barker, Luis A. Moreno, Vicente Martínez-Vizcaino and Luis Gracia-Marco

assessment of percentage of body fat (%BF), allows identifying body composition imbalances that can affect athletes’ performance and overall health and well-being during growth ( 1 ). Adolescents may develop compulsive weight loss behaviors to reach a perceived “ideal” body weight for competition ( 7

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Gabriel Lozano-Berges, Ángel Matute-Llorente, Alejandro Gómez-Bruton, Alejandro González-Agüero, Germán Vicente-Rodríguez and José A. Casajús

The assessment of percentage of body fat (%BF) is often performed in sport clubs to monitor body composition changes in the athletes during the season due to its relationship with physical fitness and performance ( Avlonitou et al., 1997 ). Anthropometry, bioelectrical impedance analysis, dual

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Ulrika Andersson-Hall, Stefan Pettersson, Fredrik Edin, Anders Pedersen, Daniel Malmodin and Klavs Madsen

flexibility (i.e., the ability to adapt to different fuels) in other subject groups such as type 2 diabetics ( Goodpaster & Sparks, 2017 ). In a recent study, we showed that prior exercise increased whole-body fat oxidation by approximately 75% in a second exercise bout ( Andersson Hall et al., 2016 ). The

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Daniel Arvidsson, Elias Johannesson, Lars Bo Andersen, Magnus Karlsson, Per Wollmer, Ola Thorsson and Magnus Dencker

physical activity and body fat, and their relationship. Childhood is a period in life characterized by rapid development of the neural system supported by a physically active lifestyle. Few studies have investigated the relationship of physical activity with the expression of NGF and BDNF in children

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Gregory Severino, Marcos Sanchez-Gonzalez, Michelle Walters-Edwards, Michael Nordvall, Oksana Chernykh, Jason Adames and Alexei Wong

, using a weighing scale (Life Measurement, Inc., Concord, CA) and a stadiometer. BMI was calculated as weight in kg/height in m 2 . Percent body fat (BF%), fat mass (FM, kg), and lean body mass (LBM, kg) were determined using the BodPod whole-body air-displacement plethysmography method (Life Measurement

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YoonMyung Kim

counterparts ( 21 ). Thus, early detection, prevention, and treatment for childhood obesity and obesity-related health risks are of importance. There is a strong body of evidence supporting that a regional body fat distribution is one of the fundamental elements explaining the link between obesity and its

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Yuri Alberto Freire, Geovani de Araújo Dantas de Macêdo, Rodrigo Alberto Vieira Browne, Luiz Fernando Farias-Junior, Ágnes Denise de Lima Bezerra, Ana Paula Trussardi Fayh, José Cazuza de Farias Júnior, Kevin F. Boreskie, Todd A. Duhamel and Eduardo Caldas Costa

amounts of time in sedentary behavior have higher risk for cardiometabolic diseases and mortality, 2 , 3 especially when sedentary behavior is prolonged and uninterrupted. 4 Low energy expenditure due to high sedentary behavior contributes to increased body fat. 5 Both sedentary behavior and excess

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Ann V. Rowlands, Roger G. Eston, Lobo Louie, David K. Ingledew, Kwok K. Tong and Frank H. Fu

The aim of this study was to investigate the relationship between habitual physical activity and body fatness in Hong Kong Chinese children. Fifty children aged 8–11 yrs wore a uniaxial accelerometer for 7 days to determine physical activity levels. The sum of seven skinfolds was used to estimate body fatness. Activity counts summed over 1 day (299384 – 140427, mean – SD) were similar to activity counts recorded in previous studies. Activity correlated significantly negatively with sum of skinfolds in boys (r = –.50, N = 24, P < .05) but not girls. In conclusion this study supports a negative relationship between physical activity and body fatness in Hong Kong Chinese boys.

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Gladys Block, Christopher D. Jensen, Torin J. Block, Jean Norris, Tapashi B. Dalvi and Ellen B. Fung

Background:

Understanding and increasing physical activity requires assessment of occupational, home, leisure and sedentary activities.

Methods:

A physical activity questionnaire was developed using data from a large representative U.S. sample; includes occupational, leisure and home-based domains; and produces estimates of energy expenditure, percent body fat, minutes in various domains, and meeting recommendations. It was tested in 396 persons, mean age 44 years. Estimates were evaluated in relation to percent body fat measured by dual-energy x-ray absorptiometry.

Results:

Median energy expenditure was 2,365 kcal (women) and 2,960 kcal (men). Women spent 35.1 minutes/day in moderate household activities, 13.0 minutes in moderate leisure and 4.0 minutes in vigorous activities. Men spent 18.0, 22.5 and 15.6 minutes/day in those activities, respectively. Men and women spent 276.4 and 257.0 minutes/day in sedentary activities. Respondents who met recommendations through vigorous activities had significantly lower percent body fat than those who did not, while meeting recommendations only through moderate activities was not associated with percent body fat. Predicted and observed percent body fat correlated at r = .73 and r = .82 for men and women respectively, P < .0001.

Conclusions:

This questionnaire may be useful for understanding health effects of different components of activity, and for interventions to increase activity levels.