• English
    • Welsh
  • English 
    • English
    • Welsh
  • Login
Search DSpace:
  • Home
  • Research at Cardiff Met
  • Library Services
  • Contact Us
View item 
  • DSpace home
  • Cardiff School of Sport and Health Sciences
  • Sport Research Groups
  • View item
  • DSpace home
  • Cardiff School of Sport and Health Sciences
  • Sport Research Groups
  • View item
JavaScript is disabled for your browser. Some features of this site may not work without it.

Early compensatory and anticipatory postural adjustments following anterior cruciate ligament reconstruction

Thumbnail
View/open
Author's post-print (240.0Kb)
Author
Laudani, Luca
Date
2015-07
Type
Article
Publisher
Springer
Metadata
Show full item record
Abstract
Purpose = Early identification of postoperative neuromuscular deficits has been advocated to prevent muscle weakness and maximize functional outcomes following anterior cruciate ligament reconstruction (ACLR). The purpose of this study was to investigate neuromechanical changes in compensatory and anticipatory postural adjustments, which play a major role in minimizing unpredictable and predictable disturbances, respectively, as early as 2 months after ACLR. Methods = Nine young male individuals who underwent ACLR with patellar tendon and nine age-matched healthy controls were exposed to two blocks of ten either unexpected or expected loading perturbations of the knee joint, while semi-reclined on a raised plinth. Amplitude and latency of postural responses in the vastus lateralis (VL), rectus femoris (RF) and biceps femoris (BF) muscles were determined by surface electromyography. Results = Latency of compensatory responses was higher in patients with ACLR than in healthy participants for VL (82 ± 15 vs 68 ± 10 ms, P < 0.05) and RF (81 ± 21 vs 63 ± 10 ms, P < 0.05). Amplitude of compensatory responses was 54 % lower in patients with ACLR than in healthy participants for VL (P < 0.05). Onset of anticipatory responses occurred earlier in patients with ACLR than in healthy participants for VL (−83 ± 45 vs −26 ± 21 ms, P < 0.05), RF (−59 ± 48 vs −10 ± 13 ms, P < 0.05) and BF (−72 ± 42 vs −12 ± 14 ms, P < 0.01). Conclusion = Patients with ACLR showed early abnormalities in compensatory and anticipatory postural adjustments, which may reflect the inability to quickly detect sudden changes in muscle length or to completely activate muscles surrounding the knee, and may be addressed by specific training interventions.
Journal/conference proceeding
European Journal of Applied Physiology;
URI
http://hdl.handle.net/10369/9467
DOI
https://doi.org/10.1007/s00421-015-3126-8
Description
Copy not available from this repository.
Collections
  • Sport Research Groups [688]

Related items

Showing items related by title, author, subject and abstract.

  • Thumbnail

    Knee joint kinematics and kinetics during a cutting manoeuvre: mechanical 

    Botting, Sam (Cardiff Metropolitan University, 2014)
    With anterior cruciate ligament injuries on the rise and cutting manoeuvres being a potent indicator, the need to examine the implication of mechanical variability after rehabilitation becomes ever apparent. Therefore ...
  • Thumbnail

    Changes in stretch shortening cycle jump performance and ground reaction force following a prolonged soccer simulation protocol 

    Corbett, Liam (2013-02)
    The aim of the study was to determine changes in stretch-shortening cycle (SSC) jump performance and ground reaction force following a 90-minute soccer simulation protocol (SSP). Participants (12 male semi-professional ...
  • Thumbnail

    Attentional focus and performance anxiety: effects on simulated race-driving performance and heart rate variability 

    Mullen, Richard; Jones, Eleri; Faull, Andrea; Kingston, Kieran (Frontiers, 2012)
    Previous studies have demonstrated that an external focus can enhance motor learning compared to an internal focus. The benefits of adopting an external focus are attributed to the use of less effortful automatic control ...

Browse

DSpace at Cardiff MetCommunities & CollectionsBy issue dateAuthorsTitlesSubjectsThis collectionBy issue dateAuthorsTitlesSubjects

My Account

Login

Statistics

Most Popular ItemsStatistics by CountryMost Popular Authors

DSpace software copyright © 2002-2015  DuraSpace
Contact us | Send feedback | Administrator