Quantification of Cycling Smoothness in Children with Cerebral Palsy
2. Materials and Methods
2.2. Data Collection
2.3. Data Analysis
2.4. Smoothness Metrics
2.5. Simulated Signals Using Real Aberrant Cycles
2.6. Statistical Analysis
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
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|Inclusion Criteria||Exclusion Criteria|
|Ages 10–18. |
Diagnosis of spastic CP.
|Lower-extremity orthopedic surgery or traumatic fracture within the past 6 months.|
|GMFCS II, III, or IV. |
Adequate range of motion of the hips, knees, and ankles to allow pedaling.
Visuoperceptual skills and cognitive/communication skills to follow multiple-step commands for attending to exercise and data collection.
Ability to communicate pain or discomfort with testing and training procedures.
|Lower-extremity joint pain during cycling. |
Spinal fusion extending to the pelvis.
Hip, knee, or ankle joint instability or dislocation.
Lower-limb stress fractures in the past year.
Symptomatic or current diagnosis of cardiac disease as assessed by the American Heart Association guidelines for cardiac history.
Current pulmonary disease or asthma and taking oral steroids or hospitalized for an acute episode in the past 6 months.
Severe spasticity in legs (score of 4 on the Modified Ashworth Scale).
Severely limited joint range of motion or irreversible muscle contractures that prevented safe positioning on the cycle.
Diagnosis of athetoid or ataxic CP.
Less than six months following Botox injections to the leg muscles.
|crankIS||A line form by concatenating the angle data of each revolution in series|
|carnkRPM||The instantaneous RPM of crankIS|
|crankIDL||That connected the beginning to the end of angle-in-series data points|
|crankSim||The simulated crankIS using the aberrant revolutions of CP subjects|
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Behboodi, A.; Sansare, A.; Lee, S.C.K. Quantification of Cycling Smoothness in Children with Cerebral Palsy. Biomechanics 2023, 3, 79-92. https://doi.org/10.3390/biomechanics3010008
Behboodi A, Sansare A, Lee SCK. Quantification of Cycling Smoothness in Children with Cerebral Palsy. Biomechanics. 2023; 3(1):79-92. https://doi.org/10.3390/biomechanics3010008Chicago/Turabian Style
Behboodi, Ahad, Ashwini Sansare, and Samuel C. K. Lee. 2023. "Quantification of Cycling Smoothness in Children with Cerebral Palsy" Biomechanics 3, no. 1: 79-92. https://doi.org/10.3390/biomechanics3010008