Kinematics of the ankle joint complex in snowboarding

Because snowboarders are known to injure their ankles more often than Alpine skiers, it has been postulated that stiffer snowboard boots would provide better protection to the ankle than current soft boots do. Snowboarders are also known to injure their front ankle more often than their back ankle,...

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Bibliographic Details
Published in:Journal of applied biomechanics 2005-11, Vol.21 (4), p.394-403
Main Authors: Delorme, Sebastien, Tavoularis, Stavros, Lamontagne, Mario
Format: Article
Language:English
Subjects:
Adult
Ankle
Ankle Injuries - prevention & control
Ankle Joint - physiology
Athletic Injuries - prevention & control
Biomechanical Phenomena
Equipment Design
Humans
Kinematics
Lateral Ligament, Ankle - injuries
Lateral Ligament, Ankle - physiology
Product design
Range of Motion, Articular - physiology
Risk Assessment
Risk Factors
Shoes
Skiing - injuries
Skiing - physiology
Sports Equipment
Subtalar Joint - injuries
Subtalar Joint - physiology
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Summary:Because snowboarders are known to injure their ankles more often than Alpine skiers, it has been postulated that stiffer snowboard boots would provide better protection to the ankle than current soft boots do. Snowboarders are also known to injure their front ankle more often than their back ankle, presumably because of the asymmetrical rotations of the ankles due to asymmetrical binding adjustement. To test these hypotheses, we measured the kinematics of the feet and legs of 5 snowboarders wearing soft boots and stiffer step-in boots during snowboarding maneuvers using an electromagnetic motion tracking system. The results were expressed in anatomically relevant rotations of the ankle joint complex, namely dorsi-/plantar flexion, eversion/inversion, and internal/external rotation. The measured ankle rotations show differences in the movement patterns of the front and back legs. Step-in boots were shown to allow less dorsiflexion, eversion, and external rotation than softer boots, possibly explaining why they are associated with a lower rate of fractures of the talus than soft boots.
ISSN:1065-8483
1543-2688
DOI:10.1123/jab.21.4.394