Influence of Training-induced Testosterone and Cortisol Changes on Skeletal Muscle and Performance in Elite Junior Athletes

Bailey, Janel; Irving, Rachel; Dawson, Paula; Brown, Dialo-Rudolph; Campbell, Eon

doi:10.12691/ajssm-9-1-4

Cited by 3 publications

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“…[ 6 ]. In winter sports athletes, muscle strains and ligament strains occur during exercise, and the patients have the highest probability of injury to the lower back, knees, and ankles, followed by shoulders, wrists, and legs [ 7 ]. During daily training or competition of athletes, the body is often kept at a low temperature, and the muscles are easily stiffened rapidly, when doing strenuous exercise to contract the muscles, the muscles are strained due to excessive force, and the auxiliary tissues around the muscles may also be damaged [ 8 ].…”

Section: Literature Reviewmentioning

confidence: 99%

Observation on the Effect of Rehabilitative Physical Training on Ice and Snow Sports Injury under Ultrasound Examination

Wang

Zhou

2022

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In order to solve the problem of rehabilitative physical training on ice and snow sports injuries, the author proposed an observation method using ultrasonography to be proposed. This method selects patients with anterior talofibular ligament injury treated in a hospital, forty-nine patients who did not undergo conventional rehabilitation under the surveillance of sports medicine ultrasound were set as the control group, a total of 49 patients with anterior talofibular ligament injury who underwent rehabilitation treatment under the monitoring of sports medicine ultrasound were selected as the experimental group, and the clinical efficacy of the two groups of patients was retrospectively analyzed, in order to discuss the application value of sports medicine ultrasound in the rehabilitation of anterior talofibular ligament injury. The results showed that comparing the rehabilitation effect, ankle function score, and daily living ability of the two groups of patients, the experimental group was better than the control group. Comparing the thickness of ligament and effusion between the two groups, the experimental group was also better than the control group, and the difference was statistically significant ( P < 0.05 ). Ultrasound medical examination can help doctors to effectively judge the degree of injury and recovery of patients, and doctors can adjust the treatment plan in time according to the examination results and formulate an effective rehabilitation plan, which can greatly shorten the recovery time of patients, improve the treatment effect, promote the functional recovery of the ankle joint, and reduce the occurrence of complications.

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Section: Literature Reviewmentioning

confidence: 99%

Observation on the Effect of Rehabilitative Physical Training on Ice and Snow Sports Injury under Ultrasound Examination

Wang

Zhou

2022

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“…La acumulación de lactato en sangre informa sobre el aporte de las vías metabólicas de producción de energía (Powers & Howley, 2018), permite analizar estados de forma deportiva (Facey et al, 2013;Schwesig et al, 2019) y prescribir cargas de entrenamiento (Heuberger et al, 2018). Acciones de alta intensidad generan un incremento en la producción de este metabolito.…”

Section: Discussionunclassified

Asociación entre la aptitud física aeróbica y metabolismo glucolítico en futbolistas profesionales varones adultos (Association between aerobic fitness and glycolytic metabolism in adult male professional football players)

Hermosilla Palma,

Merino Muñoz,

Marilaf Hormazábal

et al. 2024

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Objetivo: Analizar la asociación entre la aptitud física aeróbica y el metabolismo glucolítico en jugadores profesionales varones adultos chilenos. Como objetivo secundario, examinar las diferencias entre posiciones de juego. Métodos: La muestra corresponde a 31 futbolistas profesionales adultos pertenecientes a un club de Primera B de Chile. Se determinó la aptitud aeróbica a través de la prueba Yo-Yo de resistencia intermitente nivel I. Se obtuvo una muestra de lactato posterior a su finalización, con el propósito de analizar la implicancia del metabolismo glucolítico. Se realizó la prueba de Pearson para identificar las asociaciones entre variables y la prueba ANOVA de un factor para analizar las diferencias entre posiciones de juego. Resultados: No existe relación entre la aptitud aeróbica y el metabolismo glucolítico (r=0.165 y p=0.375). Del mismo modo no se presentan diferencias entre posiciones para la aptitud aeróbica (p=0.64) y producción de lactato (p=0.75). Conclusión: El rendimiento en esfuerzos dependientes de oxígeno no se relaciona con la capacidad glucolítica para esta muestra de futbolista profesionales, por tanto, no es posible proyectar influencias entre las variables, así como tampoco en función de la posición en el campo de juego. Palabras clave: Fútbol, rendimiento físico aeróbico, metabolismo glucolítico, lactato. Abstract. Objective: Analyze the association between aerobic physical fitness and glycolytic metabolism in adult male professional Chilean soccer players. As a secondary objective, examine differences between playing positions. Methods: The sample consists of 31 adult professional footballers from a Chilean Primera B club. Aerobic fitness was determined through the Yo-Yo intermittent endurance level I test. A lactate sample was obtained after its completion to analyze the implication of glycolytic metabolism. The Pearson test was performed to identify associations between variables, and the one-way ANOVA test was conducted to analyze differences between playing positions. Results: There is no relationship between aerobic fitness and glycolytic metabolism (r=0.165 and p=0.375). Similarly, there are no differences between positions for aerobic fitness (p=0.64) and lactate production (p=0.75). Conclusion: The performance in oxygen-dependent efforts is not related to glycolytic capacity for this sample of professional footballers. Therefore, it is not possible to project influences between the variables, nor based on the playing position. Keywords: Soccer, aerobic physical fitness, glycolytic metabolism, lactate.

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“…3 Bailey J and others believe that compound training should be a combination of strength, jumping and speed strength training. 4…”

Section: Introductionmentioning

confidence: 99%

Influence of Strength Training on the Explosive Power of Lower Limbs of Soccer Players

Zhang

2023

Rev Bras Med Esporte

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Introduction The explosive power of the lower limbs is an indispensable index in soccer. Having a good level of explosive power establishes a solid foundation for the performance and the competitive level of soccer players. Objective Promote the conditions to improve the explosive level of soccer players and improve their performance and competitive level. Methods This paper presents the influence of compound strength training on the explosive power of the lower limbs of soccer athletes. Based on 27 young 9-year-old soccer players from Zai Ming Football Club of a sports college as experimental material, the composite training was carried out. Results The growth rates of these rates in the experimental group were 3.3%, 2.3%, 5.0%, 3.6%, 9.2%, 12.1%, 20.5%, 5.7%, 11.9%, 16.9% and 19.5% respectively, while those in the control group were 1.2%, 0.7%, 4.2%, 3.1%, 6.8%, 7.8%, 5.1%, 4.2%, 4.8%, 12.5% and 19.2% respectively. The growth rate of the experimental group was higher than that of the control group and the blank control group. Conclusion Compared with the control group and the neutral control group, the experimental group with compound training has a better training effect on improving the lower limb explosiveness of youth soccer players. Level of evidence II; Therapeutic studies - investigation of treatment outcomes.

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Influence of Training-induced Testosterone and Cortisol Changes on Skeletal Muscle and Performance in Elite Junior Athletes

Cited by 3 publications

References 0 publications

Observation on the Effect of Rehabilitative Physical Training on Ice and Snow Sports Injury under Ultrasound Examination

Observation on the Effect of Rehabilitative Physical Training on Ice and Snow Sports Injury under Ultrasound Examination

Asociación entre la aptitud física aeróbica y metabolismo glucolítico en futbolistas profesionales varones adultos (Association between aerobic fitness and glycolytic metabolism in adult male professional football players)

Influence of Strength Training on the Explosive Power of Lower Limbs of Soccer Players

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