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Effects of toe-in angles on knee biomechanics in cycling of patients with medial knee osteoarthritis
- Source :
- Clinical biomechanics (Bristol, Avon). 30(3)
- Publication Year :
- 2014
-
Abstract
- Background Cycling is commonly prescribed for knee osteoarthritis, but previous literature on biomechanics during cycling and the effects of acute intervention on osteoarthritis patients does not exist. Due to their altered knee kinematics, osteoarthritis patients may be at greater risk of osteoarthritis progression or other knee injuries during cycling. This study investigated the effects of reduced foot progression (toe-in) angles on knee joint biomechanics in subjects with medial compartment knee osteoarthritis. Methods Thirteen osteoarthritis and 11 healthy subjects participated in this study. A motion analysis system and custom instrumented pedal was used to collect 5 pedal cycles of kinematic and kinetic data in 1 neutral and 2 toe-in conditions (5° and 10°) at 60 RPM and 80 W. Findings For peak knee adduction angle, there was a 61% (2.7°) and a 73% (3.2°) decrease in the 5° and 10° toe-in conditions compared to neutral in the osteoarthritis group and a 77% (1.7°) and 109% (2.4°) decrease in the healthy group for the 5° and 10° conditions, respectively. This finding was not accompanied by a decrease in pain or peak knee abduction moment. A simple linear regression showed a positive correlation between Kelgren–Lawrence score and both peak knee adduction angle and abduction moment. Interpretation For individuals who cycle with increased knee adduction angles, decreasing the foot progression angle may be beneficial for reducing the risk of overuse knee injuries during cycling by resulting in a frontal plane knee alignment closer to a neutral position.
- Subjects :
- musculoskeletal diseases
Male
medicine.medical_specialty
Knee Joint
Cumulative Trauma Disorders
Biophysics
Osteoarthritis
Kinematics
Knee Injuries
Toe
Physical medicine and rehabilitation
medicine
Humans
Orthopedics and Sports Medicine
Gait
business.industry
Foot
Biomechanics
Middle Aged
Osteoarthritis, Knee
Toes
medicine.disease
Surgery
Bicycling
Biomechanical Phenomena
Coronal plane
Time and Motion Studies
Disease Progression
Female
business
Cycling
human activities
Medial knee
Subjects
Details
- ISSN :
- 18791271
- Volume :
- 30
- Issue :
- 3
- Database :
- OpenAIRE
- Journal :
- Clinical biomechanics (Bristol, Avon)
- Accession number :
- edsair.doi.dedup.....03837ab1cb4c08ebd123f3e260b0ee00