Influence of modern studded and bladed soccer boots and sidestep cutting on knee loading during match play conditions.

Full Abstract

BACKGROUND:
The influence of modern studded and bladed soccer boots and sidestep cutting on noncontact knee loading during match play conditions is not fully understood.

HYPOTHESIS:
Modern soccer boot type and sidestep cutting compared with straight-ahead running do not significantly influence knee internal tibia axial and valgus moments, anterior joint forces, and flexion angles.

STUDY DESIGN:
Controlled laboratory study.

METHODS:
Fifteen professional male outfield soccer players undertook trials of straight-ahead running and sidestep cutting at 30 degrees and 60 degrees with a controlled approach velocity on a Fédération Internationale de Football Association (FIFA) approved soccer surface. Two bladed and 2 studded soccer boots from 2 manufacturers were investigated. Three-dimensional inverse dynamics analysis determined externally applied internal/external tibia axial and valgus/varus moments, anterior forces, and flexion angles throughout stance.

RESULTS:
The soccer boot type imparted no significant difference on knee loading for each maneuver. Internal tibia and valgus moments were significantly greater for sidestep cutting at 30 degrees and 60 degrees compared with straight-ahead running. Sidestep cutting at 60 degrees compared with straight-ahead running significantly increased anterior joint forces.

CONCLUSION:
Varying soccer boot type had no effect on knee loading for each maneuver, but sidestep cutting significantly increased internal tibia and valgus moments and anterior joint forces.

CLINICAL RELEVANCE:
Sidestep cutting, irrespective of the modern soccer boot type worn, may be implicated in the high incidence of noncontact soccer anterior cruciate ligament injuries by significantly altering knee loading.

Learn Faster Today Improve your study skills

Author information

Author/s: Kaila, Rajiv (R);

Affiliation: Trauma & Orthopaedics Registrar, United Kingdom. rajiv_kaila(-atsign-)yahoo.co.uk

Journal and publication information

Publication Type: Comparative Study; Evaluation Studies; Journal Article

Journal: The American journal of sports medicine (Am J Sports Med), published in United States. (Language: eng)

Reference: 2007-Sep; vol 35 (issue 9) : pp 1528-36

Dates: Created 2007/08/20; Completed 2007/10/18;

PMID: 17395959, status: MEDLINE (last retrieval date: 12/26/2008)

Sourced from the National Library of Medicine. Abstract text and other information may be subject to copyright.

External Links for this article (including full text providers, if available):

Click Electronic Full-text Provider Links to see options for finding the electronic full text links to this article. Note there may be a subscription or fee required for access to the full text. See our FAQ for information on finding FREE full text articles.

This article may also be located in paper journal collections available in many libraries. Use the Journal and Publication Information above to find the full article.

MeSH headings (categories)

This article was linked to the MESH Headings shown below.

Adult
Competitive Behavior
Equipment Design
Humans
Knee - physiology
Locomotion - physiology
Male

Male
Shoes
Soccer - physiology
Sports Equipment
Task Performance and Analysis
Tibia - physiopathology
Weight-Bearing

These are the highest related articles currently in the database:

See 100+ related articles.