Relationship between upper and lower limbs muscle explosive strength with the vastus lateralis and biceps brachii architecture

Author:

Laett Conrado1ORCID,Gavilão Ubiratã1ORCID,Rio Jéssica do2ORCID,Cossich Victor1ORCID,Oliveira Carlos Gomes de3ORCID

Affiliation:

1. Universidade Federal do Rio de Janeiro, Brasil; Instituto Nacional de Traumatologia e Ortopedia, Brasil

2. Instituto Nacional de Traumatologia e Ortopedia, Brasil

3. Universidade Federal do Rio de Janeiro, Brasil

Abstract

ABSTRACT We aimed to assess upper and lower limbs explosive strength, and its correlation with biceps brachii (BB) and vastus lateralis (VL) architecture. Absolute and maximum torque normalized rate of torque development (RTD) were measured from isometric elbow flexion (EF) and knee extension (KE). BB and VL architectures were assessed by ultrasound. Absolute RTD of KE was higher (129–272%), although normalized RTD was higher in EF (80-21%). The absolute RTD was correlated to muscle thickness only in the BB (r=.39-46). No relationship was found between muscle architecture and normalized RTD. In conclusion, the higher RTD from KE seems to be due to their greater strength. Only the muscle architecture could not explain the differences found in the RTD.

Publisher

FapUNIFESP (SciELO)

Subject

Physical Therapy, Sports Therapy and Rehabilitation,Health(social science)

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