scholarly journals Efecto de un programa de entrenamiento de fuerza sobre IGF-1 en adultos mayores con obesidad e hipertensión controlada (Effect of a strength training program on IGF-1 in older adults with obesity and controlled hypertension)

Retos ◽  
2020 ◽  
pp. 253-256
Author(s):  
Rogelio Galaviz Berelleza ◽  
Marina Trejo Trejo ◽  
Juan Carlos Borbón Román ◽  
Edgar Ismael Alarcón Meza ◽  
Heriberto Antonio Pineda Espejel ◽  
...  

Introducción: A medida que se presenta el envejecimiento, los músculos disminuyen su tamaño y fuerza. La pérdida de masa muscular puede causar una disminución general de la función metabólica asociada a una baja producción hormonal anabólica y riesgo de lesión. La disminución de los niveles séricos de GH e IGF-1 debido al incremento de la edad pueden promover la fragilidad al contribuir a la pérdida de masa muscular y fuerza objetivo: Determinar efecto de un programa de entrenamiento de fuerza sobre IGF-1 en adultos mayores con obesidad e hipertensión controlada. Método: 8 adultos mayores con obesidad e hipertensión controlada, realizaron 6 semanas de entrenamiento de la fuerza con intensidades del 70% del 1RM, con una frecuencia de 4 veces por semana, previo al protocolo de entrenamiento se determinó triglicéridos, colesterol, glucosa e IGF-1 en sangre y medidas antropométricas (talla, peso, % grasa y masa muscular). Se aplicó un test de una repetición máxima (1RM) para evaluar la fuerza máxima en el tren superior e inferior antes y después del programa de entrenamiento. Resultados: Se observó un aumento significativo (p<0.05) en los niveles séricos de IGF-1, después de la realización del programa de entrenamiento. Conclusión: El entrenamiento de la fuerza con intensidades del 70% de la 1RM y frecuencia 4 realizado durante 6 semanas en adultos mayores con obesidad e hipertensión controlada, produjo incrementos en la concentración sérica de IGF-1 y un incremento de la fuerza muscular. Abstract. Introduction: As people age, muscles decrease in size and strength. Loss of muscle mass can cause a general decrease of metabolic function associated with low anabolic hormone production and risk of injury. The decrease in serum levels of GH and IGF-1 due to aging can provoke fragility by contributing to the loss of muscle mass and strength. Purpose: To determine the effect of a strength training program on IGF-1 in older adults with obesity and controlled hypertension. Method: a sample of 8 older adults with obesity and controlled hypertension performed 6 weeks of strength training with intensities of 70% 1RM and 10RM, with a frequency of 4 times per week. Prior to the protocol of Training, triglycerides, cholesterol, blood glucose IGF-1, and anthropometric measures (size, weight, % fat and muscle mass) were determined. The test of one maximum repetition (1rm) was performed to evaluate maximum force in upper and lower limbs before and after the training program. Results: A significant increase (p <0.05) was observed in serum IGF-1 levels after the completion of training program. Conclusion: Strength training with intensities of 70% of 1RM and frequency of 4 days/week, carried out for 6 weeks, produced increases in serum IGF-1 concentration and increased muscle strength in older adults with obesity and controlled hypertension.

2008 ◽  
Vol 56 (12) ◽  
pp. 2323-2329 ◽  
Author(s):  
Jennifer E. Layne ◽  
Susan E. Sampson ◽  
Charlotte J. Mallio ◽  
Patricia L. Hibberd ◽  
John L. Griffith ◽  
...  

1998 ◽  
Vol 11 (6) ◽  
pp. 445-451 ◽  
Author(s):  
P. A. Brill ◽  
J. C. Probst ◽  
D. L. Greenhouse ◽  
B. Schell ◽  
C. A. Macera

2021 ◽  
Vol 13 (1) ◽  
pp. 83-90
Author(s):  
PATRICIA FISCHEROVA ◽  
MAGDALENA NITYCHORUK ◽  
WOJCIECH SMOLKA ◽  
MARCIN ZAK ◽  
ARTUR GOLAS ◽  
...  

Introduction: The aim of the study was to compare the impact of a 6-week program combined with football training and strength training on strength and power parameters in highly trained soccer players. It was hypothesized that 6 weeks would be enough for the experimental group to improve their jumping ability and pushing power. Material and methods: The study involved 34 female footballers playing in Ekstraliga (age: 22 ± 5 years; body height: 167 ± 5 cm; body weight: 60 ± 8 kg). The contestants were divided into an experimental group and a control group of 17 people in each group. The control group performed football trainings combined with 2 additional strength units (50% 1RM load) 3 times a week. The experimental group, apart from football trainings, additionally performed 2 strength trainings per week (50–85% 1RM load). Results: The results of the experiment show a significant improvement in the height of the vertical jump and bench press while sitting in the experimental group CMJ (p <0.05; p = 0.000029; ES: 1.00; 11%), CMJA (p <0.05; p = 0 00003; ES = 1.09; 13%), and LP (p <0.05; p = 0.027681; ES = 0.48; 6%), while in the control group the changes in the results after the training program were statistically insignificant CMJ (p> 0.05; p = 0.274000; ES: 0.07, 1%), CMJA (p> 0.05; p = 0.350958 ES = 0.27, 3%), and LP (p> 0.05; p = 0.130153; ES = 0.27; 4%). Conclusion: The presented research results suggest that a short, six-week training program including general football training and strength training performed twice a week with loads gradually increasing during the preparatory period may significantly improve the strength and jumping parameters of the lower limbs in soccer players. Such information can be valuable at the stage of training in the field of special skills training in football.


2020 ◽  
Vol 72 (12) ◽  
pp. 1703-1718 ◽  
Author(s):  
Chun‐De Liao ◽  
Hung‐Chou Chen ◽  
Yu‐Chi Kuo ◽  
Jau‐Yih Tsauo ◽  
Shih‐Wei Huang ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document