Diferencias biomecánicas del gesto técnico de la media sentadilla libre en físico-culturistas profesionales y amateur / Diferenças biomecânicas do gesto técnico do meio-francho livre em musculturistas profissionais e iniciantes / Biomechanical differences of the technical gesture of the free half squat in professional and amateur bodybuilders

RESUMEN El perfeccionamiento de la técnica deportiva tiene como premisa comparar los valores del movimiento motriz, esta debe ser caracterizada para corregir errores detectados como parte del proceso de dirección del entrenamiento deportivo. Se pone énfasis en los deportes eminentemente técnicos, como es el caso del entrenamiento del fisiculturismo. En tal sentido, la presente investigación tuvo como objetivo analizar la técnica de la media sentadilla en fisiculturistas profesionales y amateurs como método empírico (medición específica del deporte). La investigación es descriptiva-explicativa de orden correlacional. Se correlacionan seis variables de interés (X1: ángulo de la articulación del hombro; X2: ángulo de la articulación de la cadera; X3: Velocidad máxima alcanzada; X4: aceleración máxima alcanzada; X5: centro de gravedad en X; X6: centro de gravedad en Y). Las medias establecen diferencias entre grupos independientes, tanto en la variable X1 (Grupo 1: ≈66°; grupo 2: H"70°; p=0.247), la X2 (grupo 1: ≈73°; grupo 2: ≈86°; p=0.002), La X3 (grupo 1:≈1.03m/s; grupo 2: ≈1.36m/s; p=0.017), la X4 (grupo 1: ≈2.93m/s2; grupo 2: ≈4.78m/s2; p=0.011), la X5 (grupo 1: ≈0.43m; grupo 2: ≈0.65m; p=0.000), y la X6 (grupo 1: ≈0.61m; grupo 2: ≈0.83m; p=0.000). El grupo 1 posee una técnica más efectiva, mientras que los amateurs poseen menor eficiencia en el movimiento biomecánico dada su inexperiencia, se muestran valores altos en velocidad y aceleración, se incluyen ángulos de movimiento como el de cadera.

RESUMO A melhoria da técnica desportiva baseia-se na premissa de comparar os valores do movimento motor, que deve ser caracterizada a fim de corrigir erros detectados como parte do processo de gestão do treino desportivo. A tónica é colocada no desporto eminentemente técnico, como é o caso do treino de musculação. Neste sentido, o objectivo desta investigação era analisar a técnica de meio agachamento em musculturistas profissionais e iniciantes como um método empírico (medição específica do desporto). A investigação é descritiva-explicativa da ordem correlativa. Seis variáveis de interesse estão correlacionadas (X1: ângulo da articulação do ombro; X2: ângulo da articulação da anca; X3: velocidade máxima alcançada; X4: aceleração máxima alcançada; X5: centro de gravidade em X; X6: centro de gravidade em Y). Os meios estabelecem diferenças entre grupos independentes, tanto na variável X1 (Grupo 1: ≈66°; grupo 2: ≈70°; p=0,247), a X2 (grupo 1: ≈73°; grupo 2: ≈86°; p=0,002), a X3 (grupo 1: ≈1. 03m/s; grupo 2: ≈1.36m/s; p=0.017), o X4 (grupo 1: ≈2.93m/s2; grupo 2: ≈4.78m/s2; p=0.011), o X5 (grupo 1: ≈0.43m; grupo 2: ≈0.65m; p=0.000), e o X6 (grupo 1: ≈0.61m; grupo 2: ≈0.83m; p=0.000). O grupo 1 tem uma técnica mais eficaz, enquanto os iniciantes têm uma eficiência de movimento biomecânico mais baixa devido à sua inexperiência, eles mostram menos eficiência no movimento biomecânico. Dada a sua inexperiência, são mostrados valores elevados em velocidade e aceleração, e são incluídos ângulos de movimento como o ângulo da anca.

ABSTRACT The improvement of the sports technique is premised on comparing the values of the motor movement, this must be characterized to correct errors detected as part of the sports training management process. Emphasis is placed on highly technical sports, such as bodybuilding training. In this sense, the present research aimed to analyze the half-squat technique in professional and amateur bodybuilders as an empirical method (sport-specific measurement). The research is descriptive-explanatory of correlational order. Six variables of interest are correlated (X1: shoulder joint angle; X2: hip joint angle; X3: maximum speed reached; X4: maximum acceleration reached; X5: center of gravity in X; X6: center of gravity in Y). The means establish differences between independent groups, both in variable X1 (group 1: ≈66°; group 2: ≈70°; p=0.247 ), X2 (group 1: ≈73°; group 2: ≈86°; p=0.002 ), X3 (group 1: ≈1.03m/s; group 2:≈1.36m/s; p=0.017 ), X4 (group 1: ≈2.93m/s2; group 2: ≈4.78m/s2; p=0.011 ), X5 (group 1: ≈0.43m; group 2:≈0.65m; p=0.000 ), and X6 (group 1: ≈0.61m; group 2: ≈0.83m; p =0.000 ). Group 1 has a more effective technique, while the amateurs have less efficiency in biomechanical movement due to their inexperience, high values are shown in speed and acceleration, movement angles such as hip angles are included.

Health aspects of active bodybuilders: monitoring by multidisciplinary team / Aspectos de salud de los culturistas activos: seguimiento por un equipo multidisciplinario / Aspectos de saúde de fisiculturistas ativos: acompanhamento por equipe multidisciplinar

ABSTRACT Preparation in bodybuilding involves high-intensity workouts and drastic feeding strategies. Little is known about health risks. Athletes (n=510, 59.8% male) were evaluated about health aspects, anthropometry, and blood pressure (BP). Chronic diseases were reported by 6,6%, but 88.9% of them did not treat; 1.9% reported hypertension, with 15.7% having high BP; and 52.5% reported the use of prohibited drugs in the last 6 months. Body mass index was 26.2±2.5 for man and 22.3±2.2 Kg/m2 for woman. Men had lower monitoring than women by physical education professionals, nutritionists, and physicians (p<0.01). Athletes are exposed to health risks factors such as lack of knowledge about diseases, high use of prohibited substances and less monitoring by professionals among men.

Resumo A preparação para o fisiculturismo inclui exercícios de alta intensidade e estratégias alimentares drásticas. Pouco se sabe sobre os riscos à saúde. Atletas (n=510, 59,8% homens) foram avaliados quanto à saúde, antropometria e pressão arterial (PA). Doenças crônicas foram relatadas por 6,6% (88,9% não tratadas); 1,9% relataram hipertensão, mas 15,7% tinham PA elevada; e 52,5% relataram uso de drogas proibidas nos últimos 6 meses. O índice de massa corporal foi 26,2±2,5 para homens e 22,3±2,2 kg/m2 para mulheres. Os homens tiveram menor acompanhamento por profissionais de educação física, nutricionistas e médicos (p <0,01). Os atletas estão expostos a riscos à saúde, como desconhecimento de doenças, alto uso de substâncias proibidas e menor monitorização profissional dos homens.

RESUMEN La preparación en el culturismo incluye ejercicios de alta intensidad y estrategias de alimentación drásticas. Se sabe poco sobre los riesgos para la salud. Los deportistas (n=510, 59,8% hombres) fueron evaluados cuanto a la salud, antropometría y presión arterial (PA). Las enfermedades crónicas fueron reportadas por 6,6% (88,9% no tratavam); 1,9% informó hipertensión, pero 15,7% tenía PA alta; y 52,5% informó el uso de drogas prohibidas en 6 meses. El índice de masa fue 26,2±2,5 para el hombre y 22,3±2,2 kg/m2 para la mujer. Los hombres tuvieron menor seguimiento por profesionales de educación física, nutricionistas y médicos (p<0,01). Los deportistas están expuestos a riesgos para la salud como el desconocimiento de las enfermidades y el alto uso de sustancias prohibidas.

Estudio neuropsicológico de la dismorfia muscular y del trastorno obsesivo-compulsivo / Neuropsychological Study of Muscle Dysmorphia and Obsessive-Compulsive Disorder

Resumen El objetivo de este estudio fue explorar y comparar las funciones ejecutivas (FE) y la memoria no verbal de un grupo de varones fisicoconstructivistas con sintomatología de dismorfia muscular (DM), con un grupo de varones que presentan sintomatología del trastorno obsesivo-compulsivo (TOC) y un grupo de control. Aplicando pruebas neuropsicológicas se encontró que los fisicoconstructivistas muestran una capacidad limitada de las FE en el control inhibitorio y flexibilidad cognitiva, con déficits visuoespaciales moderados en la memoria no verbal, mientras que el grupo con TOC presentó mayores deficiencias de rendimiento en las mismas habilidades. Se sugiere realizar más estudios para evitar un conocimiento fragmentado o contradictorio entre la DM y el TOC.

Abstract The objective of this study was to explore and compare Executive Functions (EF) and non-verbal memory of a group of male bodybuilders who have symptoms of Muscle Dysmorphia (MD) with a group of men who have Obsessive Compulsive Disorder symptoms (OCD) and a control group. It was found by administering neuropsychological tests that the bodybuilders show a limited capacity of EF in the inhibitory control and cognitive flexibility, also moderate visuospatial deficits in non-verbal memory, whereas the group with OCD had higher performance deficiencies in the same skills. It is suggested to conduct more studies to avoid fragmented or contradictory knowledge between MD and OCD.

Relationship between self-esteem and symptoms of muscle dysmorphia in male bodybuilders / Relación entre autoestima y síntomas de dismorfia muscular en varones fisicoconstructivistas

The purposes of this study were to identify the symptoms of muscle dysmorphia in four groups of men; compare the self-esteem among groups with high, moderate and low drive for muscularity; and evaluate the relationship between these variables. The sample included 295 men aged 15 to 63 years-old (57 competitors bodybuilders, 40 not competitors, 47 gym users, and 151 sedentary) who answered the Drive for Muscularity Scale and the Rosenberg Self-Esteem Scale. Results indicated that 43.9% of competitors bodybuilders, 27.5% non-competitors bodybuilders, 10.6% of gym users, and 1.3% of sedentary had symptoms of muscle dysmorphia. Covariance analysis, controlling for age, indicated that participants with lower self-esteem were those who scored higher on drive for muscularity, compared with those with moderate and low self-esteem. Finally, there was a significant and negative correlation between self-esteem and drive for muscularity, however, these results do not reveal whether self-esteem is a precursor or a consequence of drive for muscularity, so that future studies could longitudinally investigate the role of self-esteem in the development of drive for muscularity.

Los propósitos de este estudio fueron: identificar los síntomas de dismorfia muscular en cuatro grupos de varones, comparar la autoestima entre los grupos con alta, moderada y baja motivación por la musculatura, y evaluar la relación entre dichas variables. La muestra incluyó 295 varones de 15 a 63 años de edad (57 fisico-constructivistas competidores, 40 no competidores, 47 usuarios de gimnasio y 151 sedentarios) quienes contestaron la Escala de Motivación por la Musculatura y la Escala de Autoestima de Rosenberg. Los resultados indicaron que 43.9% de fisicoconstructivistas competidores, 27.5% de fisicoconstructivistas no competidores, 10.6% de usuarios de gimnasio y 1.3% de sedentarios presentaron síntomas de dismorfia muscular. El análisis de covarianza, controlando la edad, indicó que los participantes con menor autoestima fueron los que puntuaron más alto en motivación por la musculatura, en comparación con los de moderada y baja motivación. Finalmente, se observó una correlación significativa y negativa entre la autoestima y la motivación por la musculatura, sin embargo, estos resultados no revelan si la autoestima es un precursor de la motivación por la musculatura o una consecuencia, por lo que futuros estudios podrían investigar longitudinalmente el rol de la autoestima en el desarrollo de la motivación por la musculatura.

Practices of Nutritional Ergogenic Aids Usage by Elite Bodybuilders and Weight Lifters / 대한지역사회영양학회지

The objective of the present study was to determine the prevalence and type of nutritional ergogenic aids use, and to determine the frequency, reasons for use of nutritional ergogenic aids. Thirty-four male bodybuilders (mean age = 27.0 years), twenty-four male weight lifters (mean age = 20.9 years) participated in the study. Participants completed a comprehensive survey detailing their usage patterns. In this study, 78.1% of bodybuilders and 79.2% of weight lifters reported using nutritional ergogenic aids. The most frequently taken nutritional ergogenic aids, in ranking order, were protein/amino acid powders (79.4%), multivitamin/minerals (67.7%) and creatine (67.6%) for bodybuilders, in contrast to sports drinks (100.0%), protein/amino acid powders (50.5%) and creatine (50.5%) for weight lifters. Over the half of the respondents, 79.4% of bodybuilders and 50.6% of weight lifters, used protein/amino acid powders to gain muscle mass and to stay healthy. Bodybuilders, 67.6% and weight lifters, 41.7%, used multivitamin/minerals to stay healthy and for energy. The intakes of most vitamin and minerals through diet and nutritional ergogenic aids were much greater than RDA. Vitamin B1, vitamin B2, niacin, vitamin B6 and folate intakes were ranged at 400-900%. Vitamin C intake was 1285.4% (for bodybuilders) and 1322.6% (for weight lifters). The correct answer rate of nutritional ergogenic aids was 46.0% for bodybuilders and 52.0% for weight lifters. Both bodybuilders and weight lifters took highly nutritional ergogenic aids and it tended to be taken irrespective of scientific background. Specific sport nutrition education applicable to athletes, especially strength athletes, is recommended. The findings of this investigation could be used to enable the professionals (sports dietician and physician) to identify common misconceptions regarding nutritional ergogenic aids and to implement educational programs.