A5008280434- Tendon Structure and Treatment
- Sports injuries and prevention
- Shoulder Injury and Treatment
- Sports Performance and Training
- Muscle activation and electromyography studies
- Orthopedic Surgery and Rehabilitation
- Foot and Ankle Surgery
- Ultrasound Imaging and Elastography
- Sport Psychology and Performance
- Musculoskeletal pain and rehabilitation
- Sports Dynamics and Biomechanics
- Photoacoustic and Ultrasonic Imaging
University of Jyväskylä
2021-2025
Lithuanian Sports University
2020-2021
The Achilles tendon (AT) comprises three subtendons whose relative locations, and respective lines of action, vary individually. This study was aimed to demonstrate the efficacy a novel method, combining Ultrasound electrical STIMulation (USTIM), identify in vivo location individual cross-sections AT. We individually stimulated triceps surae muscle heads imaged localized tissue movement on transverse plane 1 cm proximal calcaneus using B-mode ultrasonography. Movement induced by stimulation...
Abstract Purpose The aim of this study was to investigate internal Achilles tendon (AT) displacement, AT shear wave velocity (SWV), and triceps surae (TS) muscle modulus in athletes. Methods Internal displacement assessed using ultrasound during isometric contraction. Shear elastography used assess SWV (m × s –1 ) at rest TS (kPa) passive ankle dorsiflexion. Results A total 131 athletes participated study. Athletes who had not exercised within two days greater non-uniformity mean anterior...
Using selective electrical stimulation, we report the distributions of medial and lateral gastrocnemius subtendon representations within healthy ruptured Achilles tendon. In majority our sample, was found in most anterior region adjacent to both ruptured, nonsurgically treated The tendon internal displacement pattern does not seem differ, but amplitude nonuniformity differed between tendons 1 yr after rupture.
The purpose of this study was investigate tendon displacement patterns in non‐surgically treated patients 14 months after acute Achilles rupture (ATR) and to classify into groups based on their (AT) patterns. Twenty were tested. Sagittal images AT acquired using B‐mode ultrasonography during ramp contractions at a torque level corresponding 30% the maximal isometric plantarflexion uninjured limb. A speckle tracking algorithm used track proximal‐distal movement tissue 6 antero‐posterior...
Achilles tendon (AT) rupture leads to long-term structural and functional impairments. Currently, the predictors of good recovery after are poorly known. Thus, we aimed explore interconnections between structural, mechanical, neuromuscular parameters their associations with factors that could explain in patients non-surgically treated AT rupture. A total 35 unilateral (6 females) participated this study. Muscle-tendon were measured 1-year Interconnections inter-limb differences (Δ) explored...
Context Nerves or fascia may limit motion in young soccer players, thereby contributing to frequent hamstrings injuries. Nerve-gliding exercises and self-myofascial release techniques enhance range of (ROM). Objective To compare the immediate effect foam rolling (FR) neurodynamic nerve gliding (NDNG) on passive stiffness, viscoelasticity, flexibility, proprioception during warm-up players. Design Crossover study. Setting Research laboratory. Patients Other Participants A total 15 male...
ABSTRACT Purpose To investigate early structural and mechanical predictors of plantarflexor muscle strength the magnitude Achilles tendon (AT) nonuniform displacement at 6 12 months after AT rupture. Methods Thirty‐five participants (28 males 7 females; mean ± SD age 41.7 11.1 years) were assessed for isometric plantarflexion maximal voluntary contraction (MVC) nonuniformity Structural properties measured 2 months. Limb asymmetry index (LSI) was calculated all variables. Multiple linear...
Abstract Purpose Measurement of medial gastrocnemius (MG) tendon length using ultrasonography (US) requires the muscle–tendon junction (MTJ) to be located. Previously, MG MTJ has been tracked from different proximo-distal locations near MTJ, which could influence estimates change due characteristics aponeurosis and tendon. We used US evaluate effect tracking point location on displacement during maximal submaximal (10, 20 30% non-injured maximal) isometric plantar flexion contractions....
BackgroundTo better understand muscle remodelling in dynamic conditions after an Achilles tendon rupture, this study examined the length of medial gastrocnemius fascicles during a heel-rise at 6- and 12-months non-operative ATR treatment.MethodsParticipants (15 M, 3F) were diagnosed with acute rupture. Medial subtendon length, fascicle pennation angle assessed resting conditions, shortening bi- unilateral heel-rises.FindingsFascicle was smaller on injured side (mean difference [95% CI]: −9.7...
<h3>Introduction</h3> Achilles tendon rupture (ATR) leads to long-term structural and functional impairments (1,2). Currently, the predictors of good recovery after ATR are poorly understood. Thus, we applied multivariable linear regression analysis identify factors that explain recovery. <h3>Materials Methods</h3> A total 35 unilateral patients (6 females) were recruited. Structural, mechanical, neuromuscular parameters measured 1-year rupture. Multivariable was used predict differences...