Tendon properties and muscle architecture for knee extensors and plantar flexors in boys and men

Keitaro Kubo, Takanori Teshima, Toshihiro Ikebukuro, Norikazu Hirose, Naoya Tsunoda

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

Background The purpose of this study was to compare the elastic properties and size of tendinous structures and muscle architecture for knee extensors and plantar flexors in boys and men. Methods Twenty-two early pubescent boys (9.6-12.7 yrs) and 23 young adult men (19.8-26.2 yrs) participated in this study. The maximal strain and thickness of tendinous structures for knee extensors and plantar flexors were measured using ultrasonography. In addition, the fascicle lengths of vastus lateralis and medial gastrocnemius muscles were measured. Findings The maximal strain of tendinous structures for plantar flexors was significantly greater in boys than in men, while there was no difference in the maximal strain for knee extensors between the two groups. The relative thickness (to body mass1/3) of Achilles tendon was significantly greater in boys than in men, although there was no difference in that of patellar tendon between the two groups. The relative fascicle length (to limb length) of vastus lateralis muscle was significantly lower in boys than in men, although there was no difference in that of medial gastrocnemius muscle between the two groups. Interpretation These results suggest that the amount of changes in the elastic properties and sizes of tendinous structures and in the fascicle lengths from early pubescence to maturity is different for different muscle groups (in particular, the knee extensors and the plantar flexors).

Original languageEnglish
Pages (from-to)506-511
Number of pages6
JournalClinical Biomechanics
Volume29
Issue number5
DOIs
Publication statusPublished - 2014

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Tendons
Knee
Muscles
Quadriceps Muscle
Skeletal Muscle
Patellar Ligament
Achilles Tendon
Young Adult
Ultrasonography
Extremities

Keywords

  • Fascicle length
  • Strain
  • Thickness
  • Ultrasonography

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine
  • Biophysics

Cite this

Tendon properties and muscle architecture for knee extensors and plantar flexors in boys and men. / Kubo, Keitaro; Teshima, Takanori; Ikebukuro, Toshihiro; Hirose, Norikazu; Tsunoda, Naoya.

In: Clinical Biomechanics, Vol. 29, No. 5, 2014, p. 506-511.

Research output: Contribution to journalArticle

Kubo, Keitaro ; Teshima, Takanori ; Ikebukuro, Toshihiro ; Hirose, Norikazu ; Tsunoda, Naoya. / Tendon properties and muscle architecture for knee extensors and plantar flexors in boys and men. In: Clinical Biomechanics. 2014 ; Vol. 29, No. 5. pp. 506-511.
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