Ultrasound strain mapping of Achilles tendon compressive strain patterns during dorsiflexion.

ABSTRACT: Heel lifts are commonly prescribed to patients with Achilles tendinopathy, yet little is known about the effect on tendon compressive strain. The purposes of the current study were to (1) develop a valid and reliable ultrasound elastography technique and algorithm to measure compressive strain of human Achilles tendon in vivo, (2) examine the effects of ankle dorsiflexion (lowering via controlled removal of a heel lift and partial squat) on compressive strain of the Achilles tendon insertion and (3) examine the relative compressive strain between the deep and superficial regions of the Achilles tendon insertion. All tasks started in a position equivalent to standing with a 30mm heel lift. An ultrasound transducer positioned over the Achilles tendon insertion was used to capture radiofreque

SUBMITTER: Chimenti RL 

PROVIDER: S-EPMC4761471 | biostudies-literature | 2016 Jan

REPOSITORIES: biostudies-literature