Cycling with noncircular chainring system changes the three-dimensional kinematics of the lower limbs

This study investigated the three-dimensional (3-D) pedaling kinematics using a noncircular chainring system and a conventional system. Five cyclists pedaled at their preferred cadence at a workload of 300 W using two crank systems. Flexion/extension of the hip, knee and ankle as well as shank rotat...

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Bibliographic Details
Published in:Sports biomechanics 2009-11, Vol.8 (4), p.275-283
Main Authors: Carpes, Felipe P., Dagnese, Frederico, Mota, Carlos B., Stefanyshyn, Darren J.
Format: Article
Language:English
Subjects:
Adult
Ankle Joint - physiology
Bicycling
Bicycling - physiology
Biomechanics
cycling
Equipment Design
Equipment Failure Analysis
Exercise Test - instrumentation
Exercise Test - methods
Hip Joint - physiology
Human mechanics
Humans
Kinematics
Knee Joint - physiology
Lower Extremity - physiology
lower limb kinematics
motion analysis
Movement
Noncircular chainring
Range of Motion, Articular - physiology
submaximal pedaling
Task Performance and Analysis
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Summary:This study investigated the three-dimensional (3-D) pedaling kinematics using a noncircular chainring system and a conventional system. Five cyclists pedaled at their preferred cadence at a workload of 300 W using two crank systems. Flexion/extension of the hip, knee and ankle as well as shank rotation, foot adduction/abduction, and pedal angle were measured. Joint range of motion (ROM) and angular displacements were compared between the systems. Sagittal plane ROM was significantly greater (P 
ISSN:1476-3141
1752-6116
DOI:10.1080/14763140903414409