. Author manuscript; available in PMC: 2011 Apr 1.

Published in final edited form as: Phys Ther. 2007 Apr 3;87(5):572–585. doi: 10.2522/ptj.20060261

Table 1.

Inclusion and Exclusion Criteria

Inclusion	Exclusion
Ages 13-19 y Ability to maintain an upright sitting position with minimal support Ability to commit to up to 4 sessions of training or testing Visuoperceptual skills and cognitive and communication skills sufficient to follow multiple-step commands and to attend to tasks associated with data collection Diagnosis of spastic CP and classified as level III or IV using the Gross Motor Function Classification System^b	Lower-extremity orthopedic surgery or traumatic fracture within the past 6 mo 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^a Uncontrolled seizure disorder Current pulmonary disease or asthma and taking oral steroids or hospitalized for an acute episode in the past 6 mo Severe spasticity in legs (score of ≥4 on the Modified Ashworth Scale)^b Severely limited joint range of motion or irreversible muscle contractures that prevented safe positioning on the cycle^b Diagnosis of athetoid or ataxic CP^b

Inclusion

Exclusion

Ages 13-19 y
Ability to maintain an upright sitting position with minimal support
Ability to commit to up to 4 sessions of training or testing
Visuoperceptual skills and cognitive and communication skills sufficient to follow multiple-step commands and to attend to tasks associated with data collection
Diagnosis of spastic CP and classified as level III or IV using the Gross Motor Function Classification System^b

Lower-extremity orthopedic surgery or traumatic fracture within the past 6 mo
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^a
Uncontrolled seizure disorder
Current pulmonary disease or asthma and taking oral steroids or hospitalized for an acute episode in the past 6 mo
Severe spasticity in legs (score of ≥4 on the Modified Ashworth Scale)^b
Severely limited joint range of motion or irreversible muscle contractures that prevented safe positioning on the cycle^b

Diagnosis of athetoid or ataxic CP^b

Maron BJ, Thompson PD, Puffer JC, et al. Cardiovascular preparticipation screening of competitive athletes: a statement for health professionals from the Sudden Death Committee (clinical cardiology) and Congenital Cardiac Defects Committee (cardiovascular disease in the young), American Heart Association. Circulation. 1996;94:850–856.

Subjects with cerebral palsy (CP) only.