Journal: European Journal of Applied Physiology

Article Title: Effects of long-term athletic training on muscle morphology and tendon stiffness in preadolescence: association with jump performance

doi: 10.1007/s00421-020-04490-7

Figure Lengend Snippet: Schematic representation of the experimental setup. View on the medial part of the right leg. A dynamometer ( 1 ) was used to measure ankle joint moments, while kinematic recordings ( 2 ) were used for inverse dynamics and electromyography ( 3 ) for the consideration of antagonist coactivation. Ultrasound imaging was used to assess Achilles tendon elongation ( 4 ; the crosses represent the gastrocnemius medialis myotendinous junction and the vertical lines illustrate their displacement during the contraction) and gastrocnemius medialis architecture ( 5 ; the digitalisation of the aponeuroses and the fascicle portions, indicated by the thick dashed line and pointed lines, respectively, and the calculated reference fascicle, represented by the thin dashed line, are overlaid over the ultrasound image)

Article Snippet: A 6-cm linear array ultrasound probe (7.5 MHz; Chison, Model Q3, Wuxi, China) was placed over the belly of the inactive muscle along its longitudinal axis at ∼ 50% of its length.

Techniques: Imaging