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Isokinetic analysis of ankle and ground reaction forces in runners and triathletes
Luna, Natália Mariana Silva; Alonso, Angelica Castilho; Brech, Guilherme Carlos; Mochizuki, Luis; Nakano, Eduardo Yoshio; Greve, Júlia Maria D'Andrea.
  • Luna, Natália Mariana Silva; Universidade de São Paulo. Faculdade de Medicina. Hospital das Clínicas. Department of Orthopedics and Traumatology. São Paulo. BR
  • Alonso, Angelica Castilho; Universidade de São Paulo. Faculdade de Medicina. Hospital das Clínicas. Department of Orthopedics and Traumatology. São Paulo. BR
  • Brech, Guilherme Carlos; Universidade de São Paulo. Faculdade de Medicina. Hospital das Clínicas. Department of Orthopedics and Traumatology. São Paulo. BR
  • Mochizuki, Luis; Universidade de São Paulo. Faculdade de Medicina. Hospital das Clínicas. Department of Orthopedics and Traumatology. São Paulo. BR
  • Nakano, Eduardo Yoshio; University of Brasília. Department of Statistics. Brasília. BR
  • Greve, Júlia Maria D'Andrea; Universidade de São Paulo. Faculdade de Medicina. Hospital das Clínicas. Department of Orthopedics and Traumatology. São Paulo. BR
Clinics ; 67(9): 1023-1028, Sept. 2012. tab
Artigo em Inglês | LILACS | ID: lil-649380
ABSTRACT

OBJECTIVE:

To analyze and compare the vertical component of ground reaction forces and isokinetic muscle parameters for plantar flexion and dorsiflexion of the ankle between long-distance runners, triathletes, and nonathletes.

METHODS:

Seventy-five males with a mean age of 30.26 (±6.5) years were divided into three groups a triathlete group (n=26), a long-distance runner group (n = 23), and a non-athlete control group. The kinetic parameters were measured during running using a force platform, and the isokinetic parameters were measured using an isokinetic dynamometer.

RESULTS:

The non-athlete control group and the triathlete group exhibited smaller vertical forces, a greater ground contact time, and a greater application of force during maximum vertical acceleration than the long-distance runner group. The total work (180º/s) was greater in eccentric dorsiflexion and concentric plantar flexion for the non-athlete control group and the triathlete group than the long-distance runner group. The peak torque (60º/s) was greater in eccentric plantar flexion and concentric dorsiflexion for the control group than the athlete groups.

CONCLUSIONS:

The athlete groups exhibited less muscle strength and resistance than the control group, and the triathletes exhibited less impact and better endurance performance than the runners.
Assuntos


Texto completo: DisponíveL Índice: LILACS (Américas) Assunto principal: Corrida / Força Muscular / Tornozelo Limite: Adulto / Feminino / Humanos / Masculino Idioma: Inglês Revista: Clinics Assunto da revista: Medicina Ano de publicação: 2012 Tipo de documento: Artigo País de afiliação: Brasil Instituição/País de afiliação: Universidade de São Paulo/BR / University of Brasília/BR

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Texto completo: DisponíveL Índice: LILACS (Américas) Assunto principal: Corrida / Força Muscular / Tornozelo Limite: Adulto / Feminino / Humanos / Masculino Idioma: Inglês Revista: Clinics Assunto da revista: Medicina Ano de publicação: 2012 Tipo de documento: Artigo País de afiliação: Brasil Instituição/País de afiliação: Universidade de São Paulo/BR / University of Brasília/BR