Patellar tendon properties distinguish elite from non-elite soccer players and are related to peak horizontal but not vertical power
Autor: | Ryland Morgans, Conall F. Murtagh, Barry Drust, Robert M. Erskine, Jos Vanrenterghem, Michael Stubbs, Andrew O’Boyle |
---|---|
Jazyk: | angličtina |
Rok vydání: | 2018 |
Předmět: |
Male
Sports medicine Physiology Stiffness Strain RC1200 ELASTIC PROPERTIES 0302 clinical medicine Tendon elongation Orthopedics and Sports Medicine Young’s modulus Orthodontics Tendon stiffness PROPERTIES IN-VIVO STIFFNESS General Medicine MECHANICAL-PROPERTIES JUMP PERFORMANCE MUSCLE musculoskeletal system NON-RUNNERS Tendon Biomechanical Phenomena medicine.anatomical_structure Isokinetic dynamometer Original Article Ultrasonography Life Sciences & Biomedicine medicine.medical_specialty Adolescent Young's modulus Athletic Performance Patellar tendon 03 medical and health sciences Young Adult Patellar Ligament Physiology (medical) Elastic Modulus Soccer medicine Humans Elongation Muscle Skeletal Countermovement jump Science & Technology CONTRACTIONS business.industry Public Health Environmental and Occupational Health 030229 sport sciences Unilateral HYPERTROPHY INDIVIDUALS Athletes Elite business human activities 030217 neurology & neurosurgery Sport Sciences |
Zdroj: | European Journal of Applied Physiology |
ISSN: | 1439-6319 |
Popis: | Purpose: The aims of our study were to investigate differences in tendon properties between elite and non-elite soccer players, and to establish whether tendon properties were related to power assessed during unilateral jumps in different directions. Methods: Elite (n=16; age, 18.1 ± 1.0yrs) and non-elite (n=13; age, 22.3 ± 2.7yrs) soccer players performed three repetitions of each type (unilateral vertical, unilateral horizontal-forward and unilateral medial) of countermovement jump (CMJ) on a force plate. Patellar tendon (PT) cross-sectional area (CSA), elongation, stiffness and Young’s modulus (measured at the highest common force interval) were assessed with ultrasonography and isokinetic dynamometry. Results: Elite soccer players demonstrated greater PT elongation (6.83±1.87 vs. 4.92±1.88 mm, P=0.011) and strain (11.73±3.25 vs. 8.38±3.06 %, P=0.009) than non-elite. Projectile range and peak horizontal power during unilateral horizontal-forward CMJ correlated positively with tendon elongation (r=0.657 and 0.693, P |
Databáze: | OpenAIRE |
Externí odkaz: |