RT Journal Article
T1 Muscle Architecture, Morphology, and Mechanical and Functional Properties of Biceps Femoris Long Head in Professional Soccer Players with a Prior Healed Injured Hamstring
A1 Núñez Sánchez, Francisco Javier
A1 Ritzmann Ramona, 
A1 Hernandez-Abad Fernando, 
A1 Martínez Juan Carlos, 
A1 Suárez Moreno-Arrones, Luis Jesús
K1 hamstring injury
K1 Fascicle length
K1 Pennation angle,
K1 Muscle thickness
K1 Nordic hamstring exercise
K1 Isokinetic
K1 Football
AB Objective: The aim of the present study was to compare the fascicle length, pennation angle, muscle thickness and stiffness of the biceps femoris long head, and eccentric hamstring strength between injured dominant limbs, injured non-dominant limbs, uninjured dominant limbs and uninjured non-dominant legs in previously injured players, and between dominant and non-dominant legs in uninjured elite soccer players.Materials and methods: Twenty elite soccer players participated in this study. Ultrasound imaging and MyotonPRO were used to determine the morphological and mechanical properties of the biceps femoris long head. Isokinetic and Nordic hamstring exercises were used to assess eccentric hamstring strength.Results: Previously injured players showed substantially lower fascicle length and muscle thickness, and significantly higher biceps femoris long head stiffness than uninjured players, without differences between limbs.Conclusion: The morphological and mechanical properties of elite soccer players with hamstring injury history were different from those in uninjured players. The lack of differences between limbs showed that these values are characteristics of individual players that must be considered in the design of programs to prevent BFlh injury.Keywords: Nordic hamstring exercise; fascicle length; football; hamstring injury; isokinetic; muscle thickness; pennation angle.
PB MDPI
YR 2022
FD 2022
LK https://hdl.handle.net/10433/21942
UL https://hdl.handle.net/10433/21942
LA en
NO Nuñez, Francisco Javier, Ramona Ritzmann, Fernando Hernandez-Abad, Juan Carlos Martinez, y Luis Suarez-Arrones. «Muscle Architecture, Morphology, and Mechanical and Functional Properties of Biceps Femoris Long Head in Professional Soccer Players with a Prior Healed Injured Hamstring». Journal of Clinical Medicine 11, n.º 23 (2022). https://doi.org/10.3390/JCM11237222.
NO Departamento de Deporte e Informática
NO CIRFD Centro de Investigación en Rendimieto Físico Deportivo
DS RIO
RD May 13, 2026