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1.
Rev. int. med. cienc. act. fis. deporte ; 18(69): 43-59, mar. 2018. tab, ilus, graf
Article in Spanish | IBECS | ID: ibc-171274

ABSTRACT

Objetivo: evaluar la resistencia de los músculos flexores de los dedos de la mano en escaladores de elite y recreativos. Métodos: estudio descriptivo transversal. Veinte y un escaladores fueron asignados a dos grupos de rendimiento: recreativo y élite. Realizaron un ejercicio isométrico y otro de esfuerzo intermitente en una tabla de entrenamiento multiagarre. Se midieron el tiempo de trabajo total, número de ciclos completados y frecuencia cardíaca media en cada test. Resultados: los escaladores de élite mantuvieron el esfuerzo en suspensión 7.65 minutos más que los recreativos (p < .001) y realizaron 23,14 ensayos más (p < .001). La fiabilidad de las mediciones fue excelente. Conclusiones: la fuerza de agarre de los músculos flexores de los dedos en esfuerzo continuo e intermitente contribuye al rendimiento en escalada, con diferencias significativas entre los escaladores de élite y recreativos. El test específico creado para el estudio ha demostrado una adecuada validez discriminante (AU)


Purpose: To evaluate hand's fingers flexor muscles grip endurance during a specific climbing test, and to find out if there were differences between elite and recreational sport climbers. Methods: For this cross-sectional descriptive study, twenty-one male sport climbers were assigned to two different groups, recreational or elite. The participants performed two exercises on a multi-hold training board, one requiring sustained isometric exercise and the other requiring intermittent exertion. The variables studied were total work time, number of trials completed and mean heart rate per test. Results: Elite climbers endured suspension for an average of 7.64 minutes being this period longer than recreational climbers (p < .001); thus, elite group performed 23.14 more trials than recreational group (p < .001). Reliability in all evaluations was excellent. Conclusions: Hand’s fingers flexor muscles grip endurance in continuous and intermittent exercises are the muscles that have more influence in sport climbing performance. In this regard, we have found significant differences between elite and recreational climbers (AU)


Subject(s)
Humans , Male , Adult , Muscle Strength/physiology , Hand Strength/physiology , Exercise/physiology , Sports/physiology , Heart Rate/physiology , Exercise Test , Reproducibility of Results
2.
Nutr Hosp ; 28(1): 211-6, 2013.
Article in Spanish | MEDLINE | ID: mdl-23808452

ABSTRACT

OBJECTIVES: To analyse the stress level at different academic times, by measuring salivary cortisol and assessing the influence of the stress level on the effectiveness of a nutrition education program for adolescents. METHODS: Salivary cortisol of 42 compulsory secondary education students was determined (morning and evening) at the beginning of the course and in the time prior to final exams. A nutrition education program was developed during the course and food consumption data were collected by means of a food frequency questionnaire in both initial and final moments. In addition, the body mass index was determined. RESULTS: The initial morning cortisol level was lower with respect to the final morning level (P < 0.05), with higher levels in females (P < 0.05). In the final determination, the morning cortisol was also higher in girls (P < 0.01). There were no significant changes in body mass index. 23.8% of students referred fewer consumption of carbonated beverages after the intervention program, while 28.57% reported having breakfast before leaving home. A reduction in the consumption of fruit at the end of the study was observed. DISCUSSION: To properly assess whether the observed changes are related to the nutrition education program or with the stressful situation due to the proximity of the exams, which would imply an increase in the intake, more studies would be necessary at the different stages of the course.


Objetivos: Analizar el nivel de estrés, en distintos momentos académicos, mediante la determinación de cortisol salivar y evaluar la influencia de dicho nivel de estrés en la eficacia de un programa de educación nutricional en adolescentes. Métodos: Se determinó el cortisol salival (mañana y noche) de 42 estudiantes de educación secundaria obligatoria, al inicio de curso y en el momento previo a los exámenes finales. Se desarrolló durante el curso un programa de educación nutricional y se recogieron datos de consumo de alimentos mediante un cuestionario de frecuencia en ambos momentos inicial y final. Igualmente, se determinó el índice de masa corporal. Resultados: El cortisol de mañana inicial fue menor que el de mañana final (P < 0,05), con niveles más elevados en las chicas (P < 0,05). En la determinación final, el cortisol de mañana también resultó más elevado en las chicas (P < 0,01). No hubo variaciones significativas en el índice de masa corporal. El 23.8% de los estudiantes refirió ingerir menos bebidas carbonatadas tras la intervención, mientras que el 28,57% destacó el hecho de haber incluido el desayuno antes de salir de casa. Se observó una reducción del consumo de frutas al final del estudio. Discusión: Para valorar adecuadamente si los cambios están relacionados con el programa de educación nutricional o con la situación estresante debida a la proximidad de los exámenes, que implicaría un aumento en la ingesta, serían necesarios más estudios a realizar en diferentes etapas del curso académico.


Subject(s)
Health Education , Hydrocortisone/chemistry , Saliva/chemistry , Stress, Psychological/metabolism , Stress, Psychological/psychology , Adolescent , Body Mass Index , Carbonated Beverages , Eating , Female , Humans , Male , Nutritional Sciences , Sex Characteristics , Surveys and Questionnaires
3.
Nutr. hosp ; 28(1): 211-216, ene.-feb. 2013. tab
Article in Spanish | IBECS | ID: ibc-123131

ABSTRACT

Objetivos: Analizar el nivel de estrés, en distintos momentos académicos, mediante la determinación de cortisol salivar y evaluar la influencia de dicho nivel de estrés en la eficacia de un programa de educación nutricional en adolescentes. Métodos: Se determinó el cortisol salival (mañana y noche) de 42 estudiantes de educación secundaria obligatoria, al inicio de curso y en el momento previo a los exámenes finales. Se desarrolló durante el curso un programa de educación nutricional y se recogieron datos de consumo de alimentos mediante un cuestionario de frecuencia en ambos momentos inicial y final. Igualmente, se determinó el índice de masa corporal. Resultados: El cortisol de mañana inicial fue menor que el de mañana final (p < 0,05), con niveles más elevados en las chicas (p < 0,05). En la determinación final, el cortisol de mañana también resultó más elevado en las chicas (p < 0,01). No hubo variaciones significativas en el índice de masa corporal. El 23.8% de los estudiantes refirió ingerir menos bebidas carbonatadas tras la intervención, mientras que el 28,57% destacó el hecho de haber incluido el desayuno antes de salir de casa. Se observó una reducción del consumo de frutas al final del estudio. Discusión: Para valorar adecuadamente si los cambios están relacionados con el programa de educación nutricional o con la situación estresante debida a la proximidad de los exámenes, que implicaría un aumento en la ingesta, serían necesarios más estudios a realizar en diferentes etapas del curso académico(AU)


Objectives: To analyse the stress level at different academic times, by measuring salivary cortisol and assessing the influence of the stress level on the effectiveness of a nutrition education program for adolescents. Methods: Salivary cortisol of 42 compulsory secondary education students was determined (morning and evening) at the beginning of the course and in the time prior to final exams. A nutrition education program was developed during the course and food consumption data were collected by means of a food frequency questionnaire in both initial and final moments. In addition, the body mass index was determined. Results: The initial morning cortisol level was lower with respect to the final morning level (p <0.05), with higher levels in females (p <0.05). In the final determination, the morning cortisol was also higher in girls (p <0.01). There were no significant changes in body mass index. 23.8% of students referred fewer consumption of carbonated beverages after the intervention program, while 28.57% reported having breakfast before leaving home. A reduction in the consumption of fruit at the end of the study was observed. Discussion: To properly assess whether the observed changes are related to the nutrition education program or with the stressful situation due to the proximity of the exams, which would imply an increase in the intake, more studies would be necessary at the different stages of the course (AU)


Subject(s)
Humans , Male , Female , Adolescent , Food and Nutrition Education , Hydrocortisone/analysis , Saliva/chemistry , Stress, Psychological/physiopathology , Sex Distribution , Feeding Behavior , Evaluation of the Efficacy-Effectiveness of Interventions
6.
Eat Weight Disord ; 14(1): e22-8, 2009 Mar.
Article in English | MEDLINE | ID: mdl-19367133

ABSTRACT

The purpose of the current study was to explore the psychometric properties of the Spanish adaptation of the Eating Behaviours and Body Image Test for Preadolescent Girls (EBBIT), as well as its factor structure and internal consistency. A further objective was to determinate the convergent validity between measures of body mass index (BMI) and scores on the Body Dissatisfaction (BD) subscale, taking into account a wider questionnaire, known as the Eating Disorders Inventory (EDI-2). Once the original scale was translated, 525 girls (age range 7-12 years) were assessed by the EBBIT, and the BD subscale. Students were weighed and measured, using calibrated electronic instruments to calculate BMI scores. Factor analysis suggested two primary factors which represent body image dissatisfaction/ restrictive eating (BIDRE) and binge eating behaviours (BEB). The internal consistency of the EBBIT was 0.904. A multiple regression analysis was performed using BMI, age and BD subscale data (independent variables). Results suggest that scores on the EBBIT factors are related to body size satisfaction. Higher BMI and higher BD scores were associated with higher scores on the BIDRE, and BD scores were associated with higher scores on the BEB factor.


Subject(s)
Body Image , Child Behavior , Feeding Behavior , Psychometrics , Surveys and Questionnaires/standards , Anorexia/psychology , Body Mass Index , Bulimia/psychology , Child , Factor Analysis, Statistical , Female , Humans , Reproducibility of Results , Spain
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