Publish in this journal
Journal Information
Vol. 54. Issue 203.
Pages 85-90 (July - September 2019)
Share
Share
Download PDF
More article options
ePub
Visits
...
Vol. 54. Issue 203.
Pages 85-90 (July - September 2019)
Original Article
Relationship between strength and flexibility levels in young soccer players
Relación entre los niveles de fuerza y flexibilidad en jóvenes jugadores de fútbol
Visits
...
Sarah Ramosa,b,
Corresponding author
sarah.ramos@outlook.com.br

Corresponding author.
, Roberto Simãob, Carlos Herdyb, Pablo Costac, Ingrid Diasb
a Club de Regatas Vasco da Gama, Rio de Janeiro, Brazil
b Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
c California State University, Fullerton, USA
Article information
Abstract
Full Text
Bibliography
Download PDF
Statistics
Tables (6)
Table 1. Anthropometric characteristics of the sample group (mean±SD; n=30).
Table 2. Flexibility in the dominant leg (DL) and non-dominant leg (NDL) in degrees (°).
Table 3. Quantity in percentage (%) of the athletes who were not within the normative standard in goniometry.
Table 4. Absolute peak torque of the quadriceps and hamstrings of the dominant leg (DL) and non-dominant leg (NDL) at speeds of 60°s and 180°s.
Table 5. Conventional and functional ratio of dominant leg (DL) and non-dominant leg (NDL) at speeds of 60°s and 180°s.
Table 6. Quantity in percentage (%) of the athletes that were not within the normative standard in the isokinetic test.
Show moreShow less
Abstract
Introduction

Balance of strength and flexibility between the dominant (DL) and non-dominant limbs (NDL) in young soccer players is essential, since it can minimize the possible injury-triggering mechanisms and their negative influence on performance. The aim of this study was to evaluate and compare the unilateral and bilateral strength and flexibility between the DL and NDL in young soccer players.

Material and methods

The sample consisted of 30 individuals (aged 15.97±0.67 years). The isokinetic strength was measured at the velocities of 60°s and 180°s in the concentric action of the quadriceps and hamstrings as well as eccentric of the hamstrings, and in the conventional and functional ratios, along with hip flexion range of motion.

Results

The results showed the athletes had an eccentric strength of the hamstrings at 60°s in the DL significantly (p<0.05) stronger than in the NDL, and the DL had a significant H/Q ratio (p<0.05) more balanced than the NDL.

Conclusions

Young soccer athletes may present a non-standard isokinetic results. These results are observed because of the difference in muscle strength of the posterior thigh compared to DL and NDL and the balance relation between the quadriceps and the hamstrings, generating an asymmetry of strength between the limbs and on the same member. It is necessary to monitor and devise training strategies to avoid these imbalances in order to prevent injuries.

Keywords:
Muscle strength dynamometer
Range of motion articular
Athletes
Resumen
Introducción

El equilibrio de la fuerza y de la flexibilidad entre las piernas dominantes (PD) y no dominantes (PND) en jóvenes jugadores de fútbol es imprescindible, pues puede minimizar los posibles mecanismos desencadenantes de lesiones y su influencia negativa en el desempeño. El objetivo de este estudio fue evaluar y comparar la fuerza y la flexibilidad uni y bilateral entre las PD y PND en jóvenes jugadores de fútbol.

Material y métodos

La muestra fue compuesta por 30 individuos (con edad entre 15,97±0,67 años). Se evaluó la fuerza isocinética a las velocidades de 60°/s y 180°/s en la acción concéntrica del cuádriceps e isquiotibiales y excéntrica de los isquiotibiales, y en las razones convencional y funcional, además de la goniometría para la flexión de cadera.

Resultados

Los resultados demostraron que los atletas poseían una acción excéntrica de los isquiotibiales en 60°/s en las PD significativamente (p<0,05) más fuerte que en las PND, además de las PD tener una relación I/Q significativamente (p<0,05) más equilibrada que las PND.

Conclusiones

Los atletas jóvenes de fútbol pueden presentar resultados isocinéticos no estandarizados. Estos resultados se observan debido a la diferencia en la fuerza muscular del muslo posterior con relación a las PD y PND y la relación de equilibrio entre el cuádriceps y los isquiotibiales, generando una asimetría de fuerza entre los miembros y en el mismo miembro. Es necesario monitorear y elaborar estrategias de entrenamiento para evitar estos desequilibrios, a fin de evitar lesiones.

Palabras clave:
Dinamómetro de fuerza muscular
Rango del movimiento articular
Atletas

Article

These are the options to access the full texts of the publication Apunts Sports Medicine
Subscriber
Subscriber

If you already have your login data, please click here .

If you have forgotten your password you can you can recover it by clicking here and selecting the option “I have forgotten my password”
Subscribe
Subscribe to

Apunts Sports Medicine

Purchase
Purchase article

Purchasing article the PDF version will be downloaded

Price 19.34 €

Purchase now
Contact
Phone for subscriptions and reporting of errors
From Monday to Friday from 9 a.m. to 6 p.m. (GMT + 1) except for the months of July and August which will be from 9 a.m. to 3 p.m.
Calls from Spain
932 415 960
Calls from outside Spain
+34 932 415 960
Email
Apunts Sports Medicine

Subscribe to our newsletter

Article options
Tools

Are you a health professional able to prescribe or dispense drugs?