Información del artículo Lesiones deportivas: fracturas de estrés.
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Correction: Giménez-Meseguer, J., Tortosa-Martínez, J., Cortell-Tormo, J. M. The Benefits of Physical Exercise on Mental Disorders and Quality of Life in Substance Use Disorders Patients. Systematic Review and Meta-Analysis. International Journal of Environment Research and Public Health. 2020, 1...more
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Manual resistance training (MRT) has been widely used in the field of physical therapy. It has also been used as a strength training method due to the accommodating resistance nature of this modality. The aim of the present study was to... more
Manual resistance training (MRT) has been widely used in the field of physical therapy. It has also been used as a strength training method due to the accommodating resistance nature of this modality. The aim of the present study was to compare the effects of an 8-week MRT program on maximum strength and muscular endurance in comparison to conventional resistance training in recreationally trained men. Twenty healthy recreationally trained male subjects were recruited and divided into a MRT training group and a conventional training (CT) group. CT group performed bench press and lat pull-down exercises, and the MRT group performed similar movements with resistance provided by a personal trainer. Both groups completed similar training protocol and training load: 2 training sessions weekly for 3 sets of 8 repetitions at an intensity of 8 to 10 on the perceived exertion scale of 0-10. Initial maximum strength differences were not significant between the groups. Neither group showed significant changes in muscular strength or endurance. Despite the statistically non-significant pre- to post differences, a trend for improvement was observed and effect size (ES) calculations indicated greater magnitude of effects for strength and endurance changes in the MRT group in lat pulldown (g=0.84) compared to CT group. Effectiveness of MRT is similar to CT for improving muscular strength and endurance. MRT can be used as a supplemental or alternative strength training modality for recreationally trained subjects, or be considered by personal trainers especially in low equipped facility conditions.
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Alonso-Aubin, DA, Picón-Martínez, M, Rebullido, TR, Faigenbaum, AD, Cortell-Tormo, JM, and Chulvi-Medrano, I. Integrative neuromuscular training enhances physical fitness in 6- to 14-year-old rugby players. J Strength Cond Res 35(8):... more
Alonso-Aubin, DA, Picón-Martínez, M, Rebullido, TR, Faigenbaum, AD, Cortell-Tormo, JM, and Chulvi-Medrano, I. Integrative neuromuscular training enhances physical fitness in 6- to 14-year-old rugby players. J Strength Cond Res 35(8): 2263–2271, 2021—The purpose of this study was to assess the effects of an 8-week integrative neuromuscular training (INT) program on physical fitness measures in young rugby players. A sample of 138 male rugby players (age range, 6–14 years) was divided into 5 age-related groups: group 1 (G1) (n = 20; age, 7.05 ± 0.58), group 2 (G2) (n = 27; age, 8.57 ± 0.49), group 3 (G3) (n = 31; age, 11.02 ± 0.56), group 4 (G4) (n = 33; age, 13.12 ± 0.58, and group 5 (G5) (n = 27; age, 14.85 ± 1.53 and additionally into 2 game position groups: forwards (FOR) (n = 69) and backs (BAC) (n = 69). Physical fitness measures included the Functional Movement Screen (FMS), dominant and nondominant hand-to-eye coordination, sprint capacity, core muscular endurance, and lower- and upper-body power. Integrative neuromuscular training (INT) included progressive strength, coordination, and speed exercises performed twice per week for 20 minutes. Following INT, significant improvements in selected age-related groups (p < 0.01) were found in total FMS score G3 (effect size [ES] = 0.47), G4 (ES = 0.88), and G5 (ES = 0.58); dominant hand-to-eye coordination G1 (ES = 1.48), G2 (ES = 0.71), G3 (ES = 0.55), G4 (ES = 1.47), and G5 (ES = 1.15), nondominant hand-to-eye coordination G2 (ES = 0.74), G4 (ES = 1.34), and G5 (ES = 1.09); lower-body power G2 (ES = 0.44), G4 (ES = 0.39), and G5 (ES = 0.43); core muscular endurance G1 (ES = 0.82), G3 (ES = 0.68), and G4 (ES = 1.04); upper-body power G2 (ES = 0.53); and sprint capacity G4 (ES = 0.69). Significant improvements were also found between player's positions for all tests. These findings indicate that a progressive INT program can enhance functional movement abilities and selected physical fitness measures in young rugby players regardless of game position and age.
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Context: Blood flow restriction research has focused on muscular strength and hypertrophy. Limited data have been reported about the blood flow restriction effect on the tendon. Objective: To analyze and compare the time course of... more
Context: Blood flow restriction research has focused on muscular strength and hypertrophy. Limited data have been reported about the blood flow restriction effect on the tendon. Objective: To analyze and compare the time course of recovery in Achilles tendon thickness after a single bout of low-intensity resistance training (LI-RT) and low-intensity blood flow restriction training (LI-BFRT). Methods: A total of 56 healthy participants (24.60 [4.0] y; 23.65 [3.4] body mass index) were included. The dominant leg was assigned for LI-BFRT using low load (30% 1-repetition maximum) and 30% of the total occlusion pressure (52.21 [17.89] mm Hg) in plantar-flexion exercise (1 × 30 + 3 × 15 repetitions). The nondominant leg was assumed as a control condition. Main Outcome Measure: Sonography images were taken before the intervention, immediately posttraining, and 24 hours after exercise (post-24) for the Achilles tendon thickness. Results: Changes in Achilles tendon thickness for LI-BFRT group were significant post- (−14.5%; P < .05) and post-24 (−9.2%; P < .05). In contrast, LI-RT group showed a transient decrease after exercise (−9.67%; P < .05) followed by a recovery of thickness post-24 (−1.06%; P < .05). Thickness post-24 was different between LI-BFRT versus LI-RT (P < .01). Hedge effect size analysis showed a large effect (g = 0.90) in LI-BFRT pre–post condition and a medium effect (g = 0.57) in post- to post-24. The LI-RT obtained a medium effect (g = 0.53) in pre–post condition and a small effect (g = 0.49) in post- to post-24. Conclusions: This study showed a different time course of the acute response in Achilles tendon thickness between LI-BFRT and LI-RT. This may be associated with intratendinous fluid movement in response to LI-BFRT.
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Research Interests: Medicine, Biomechanics of strength and conditioning, Humans, Movement, Strength and Conditioning, and 14 moreFemale, Male, Young Adult, Exercise, Abdominal Muscles, Electromyography, Core Stability, Adult, Paraspinal Muscles, Surface Electromyography, Biomechanical Phenomena, Scapula, Pelvic Floor, and Rectus Abdominis
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Resumen: Aquí presentamos un estudio reciente realizado por el doctor Juan Carlos colado Sánchez de la Universidad de Murcia en el que expone que:" más de 1/3 de los usuarios (de gimnasio) has sufrido lesiones o molestias por... more
Resumen: Aquí presentamos un estudio reciente realizado por el doctor Juan Carlos colado Sánchez de la Universidad de Murcia en el que expone que:" más de 1/3 de los usuarios (de gimnasio) has sufrido lesiones o molestias por el uso del levantamiento de peso". ...
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Research Interests: Medicine()
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Resumen: El entrenamiento de la fuerza (o fuerza-resistencia) en el gimnasio ha sido uno de los mayores cambios experimentados por los deportistas en la última década. Desde nadadores a corredores, quienes anteriormente centraban su... more
Resumen: El entrenamiento de la fuerza (o fuerza-resistencia) en el gimnasio ha sido uno de los mayores cambios experimentados por los deportistas en la última década. Desde nadadores a corredores, quienes anteriormente centraban su entrenamiento en la piscina ...
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AD is a complicated multi-systemic neurological disorder that involves different biological pathways. Several risk factors have been identified, including chronic stress. Chronic stress produces an alteration in the activity of the... more
AD is a complicated multi-systemic neurological disorder that involves different biological pathways. Several risk factors have been identified, including chronic stress. Chronic stress produces an alteration in the activity of the hypothalamic pituitary adrenal (HPA) system, and the autonomic nervous system (ANS), which over time increase the risk of AD and also the incidence of cardiovascular disease (CVD) and risk factors, such as hypertension, obesity and type 2 diabetes, associated with cognitive impairment and AD. Considering the multi-factorial etiology of AD, understanding the complex interrelationships between different risk factors is of potential interest for designing adequate strategies for preventing, delaying the onset or slowing down the progression of this devastating disease. Thus, in this review we will explore the general mechanisms and evidence linking stress, cardiovascular disease and AD, and discuss the potential benefits of physical activity for AD by counteracting the negative effects of chronic stress, CVD and risk factors.
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Alonso-Aubin, DA, Chulvi-Medrano, I, Cortell-Tormo, JM, Picón-Martínez, M, Rial-Rebullido, T, and Faigenbaum, AD. Squat and bench press force-velocity profiling in male and female adolescent rugby players. J Strength Cond Res 35(2S):... more
Alonso-Aubin, DA, Chulvi-Medrano, I, Cortell-Tormo, JM, Picón-Martínez, M, Rial-Rebullido, T, and Faigenbaum, AD. Squat and bench press force-velocity profiling in male and female adolescent rugby players. J Strength Cond Res 35(2S): S44–S50, 2021—Power development is critical for enhancing rugby performance because there is a close relationship between power and sport-specific skills. The aim of this study was to examine the force-velocity profiling generated by adolescent rugby players in the squat and bench press exercises and to compare sex-related differences. Subjects were 46 men (age: 14.48 ± 1.31 years; body height: 1.65 ± 0.09 m; and body mass: 58.07 ± 13.01 kg) and 41 women (age: 14.93 ± 2.76 years; body height: 1.63 ± 0.12 m; and body mass: 59.23 ± 12.66 kg) who were recruited from a national amateur rugby league team. Maximal strength, power, and velocity were assessed on the squat and bench press exercises using a Smith Machine and a linear power transducer with intensities ranging from 40 to 80% 1 repetition maximum (1RM) on the squat and 50–80% 1RM on the bench press. 1 repetition maximum squat and bench press performance were 104.26 ± 30.83 and 46.97 ± 13.59 kg, respectively, for men and 115.17 ± 41.42 and 45.85 ± 16.71 kg, respectively, for women. The maximum squat power results for men and women were 521.91 ± 298.75 and 591.26 ± 352.69 W, respectively, and the maximum bench press power results for men and women were 190.26 ± 150.54 and 326.16 ± 195.57 W, respectively. Significant sex-related differences (p < 0.001) were found on the squat exercise for maximum (40%), mean (40–50%), and time to maximum velocities (40–80%) as well as time to maximum power (80%). On the bench press exercise, significant sex-related differences (p < 0.001) were found for power and time to maximum velocity (40%-60%-70%-80%). These results may aid in the design of strength and conditioning programs for adolescent rugby players by targeting training prescriptions toward enhancing strength or velocity.
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Research Interests: Humanities, Training, Health, Childhood, Salud, and 5 moreInfancia, Entrenamiento, Retos, Muscular strength, and Fuerza Muscular
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El dolor lumbar es la segunda causa en frecuencia de visitas medicas, la quinta en frecuencia de hospitalizacion y la tercera en frecuencia de intervencion quirurgica. Ademas es la tercera causa de incapacidad funcional cronica despues de... more
El dolor lumbar es la segunda causa en frecuencia de visitas medicas, la quinta en frecuencia de hospitalizacion y la tercera en frecuencia de intervencion quirurgica. Ademas es la tercera causa de incapacidad funcional cronica despues de las afecciones respiratorias y traumatismos. Dentro de las ofertas de ocio, las actividades fisicas estan presentes en multitud de programas tanto preventivos como terapeuticos o de esparcimiento. Existe una tendencia actual en el entrenamiento de la fuerza conocida como entrenamiento funcional de la fuerza para la salud y la calidad de vida. Este sistema indica que si se atiende al principio de especificidad del entrenamiento este se deberia centrar en optimizar la capacidad funcional del sujeto. Para este fin, se plantean ejercicios que permitan mejorar la eficiencia neuromuscular en determinados movimientos ya que a su vez contribuira a obtener mejores resultados en cuanto a capacidad funcional. Esta tesis doctoral tiene por objetivo conocer que efectos, a nivel psicologico y fisiologico, tendria incluir este tipo de ejercicios, junto a los tradicionales de fuerza y estabilizacion, en un programa de intervencion en mujeres con dolor lumbar cronico. Se seleccionaron 19 mujeres jovenes con diagnostico de dolor lumbar inespecifico de caracter cronico (>3 meses) con una edad media de 35,63±8,44 anos (media±desviacion estandar), un peso de 64,46±8,55 kg y una estatura de 163,61±7,59 cm. Se distribuyeron aleatoriamente a dos grupos (control= 8 y experimental= 11). La intervencion tuvo una duracion de tres meses. En la evaluacion inicial y final se valoro la composicion corporal, el nivel de actividad fisica (International Questionnaire Physical Activity), la intensidad del dolor (Escala Visual Analogica), la calidad de vida relacionada con la salud (SF-36v2), la capacidad funcional (The Oswestry Disability Index), la fuerza resistencia en el tronco (Canadian Trunk Strength test, Static Back Endurance test y Side bridge test) y extremidades inferiores (test Sentadillas en 1 minuto) y el equilibrio (Flamingo Balance test). El grupo experimental (GE) aumento significativamente la duracion y gasto energetico derivado de actividades fisicas vigorosas y la duracion de las actividades moderadas (p?0,05). El GE mostro una reduccion muy significativa (p<0,01) respecto al control tanto en el grado de discapacidad como en la intensidad del dolor. El GE presento mejoras en la calidad de vida en todos los items evaluados aunque solo se observaron diferencias significativas en la funcion fisica. Respecto a la aptitud fisica, el GE mejoro (p<0,01) en todos los test realizados. El entrenamiento funcional de la fuerza, personalizado e integrado en la fase final del programa de intervencion, puede ayudar a reducir los niveles de incapacidad funcional y la intensidad del dolor a corto plazo en mujeres jovenes con dolor lumbar cronico, cuya incapacidad es de minima a moderada. Tambien puede contribuir a mejorar los niveles de actividad fisica y aumentar el gasto energetico semanal asi como tambien a la mejora de la auto-percepcion de su nivel de salud general.