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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT02359799
Other study ID # HP-00079369
Secondary ID
Status Completed
Phase N/A
First received
Last updated
Start date June 21, 2019
Est. completion date February 28, 2023

Study information

Verified date April 2023
Source University of Maryland, Baltimore
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

The purpose of the study is to examine the outcomes of home-based robot-guided therapy and compare it to laboratory-based robot-guided therapy for impaired ankles in cerebral palsy. Children with spastic cerebral palsy (CP) are randomly placed into two groups, participating in robot-guided stretching and active movement training either in a research lab setting (Lab group) or in a home setting (Home group).


Description:

Children with spastic CP will be randomly placed to 2 groups, either a Lab group or a Home group. For both groups, the participation will involve 18 training sessions over 6 weeks with 3 sessions each week. Each training session will last about 45 minutes, including stretching and active movement training. The participant will be asked to sit with the foot secured to a footplate and leg fixed by a leg-support. Once the rehab robot is on the child's ankle, the investigator will first determine maximum range of motion that is safe for the ankle stretching. The robot will then move the ankle joint slowly within the set range of motion, and stretch the ankle back and forth. The passive stretching will help loosen the child's muscle and increase range of motion in the ankle joint. Passive stretching will last about 15 minutes. After stretching, the investigator will ask the child to move and control the ankle joint back and forth to complete video-game tasks. While the child moves the ankle, the robot will provide assistance or resistance to improve control of the ankle joint. Active movement training will last about 20 minutes. For Home group, the family members will be trained by the research team at the lab on how they use the rehab robot properly. On the day of the first assessment, the investigator will go through the device operation with family members. A detailed user manual will be given. The investigator will allow the family members and the child to practice using the device as many times as needed until the participant feel comfortable using the device at home. The family members should prepare for a minimum of one hour for this instructional period to learn the device, but they will be allowed as much time as needed. Before leaving UMB to begin at-home training, the family members will be checked for the competency of using the device. The family members will be asked to go through each step without any direct assistance with the research staff. The family members may use their own vehicle to take the portable rehab robot home. While the family members are doing training for the child at home, the training data will be saved automatically in the laptop with the rehab robot. Only one ankle joint will be allowed to treat using this robotic device. The investigator will choose the more impaired side ankle of the child to start the training. The investigator will follow up with the family members 1-3 times per week to check in regarding the child's participation and any issues during the training. The family members can also call the research staff if they have any questions about the training. The family members should follow the same training plan during 18 training sessions unless the investigator decide to adjust the training setups based on the child's progress. Outcome assessments During the study, the child will have 3 assessment visits in the research lab. The visits will occur before and after 6-week training, and at a follow-up 6 weeks after the training ends. During the assessment, the child's ankle will be moved by the robot to test passive range of motion and joint stiffness. The participant will also move the ankle himself and the active range of motion and muscle strength will be recorded. Clinical exam scales will be done including modified Ashworth scale, Selective Control Assessment of Lower Extremity (SCALE), balance, and walking ability (distance covered in 6 minutes).


Recruitment information / eligibility

Status Completed
Enrollment 5
Est. completion date February 28, 2023
Est. primary completion date February 28, 2023
Accepts healthy volunteers No
Gender All
Age group 6 Years to 17 Years
Eligibility Inclusion Criteria: 1. Spastic cerebral palsy with diplegia or hemiplegia (affected both legs or one leg) 2. 6-17 years old 3. Can follow instructions and express any discomfort during the sessions. Exclusion Criteria: 1. Orthopedic surgery, serial casting, or injection of muscle relaxants such as botulinum toxin type A within 6 months prior to participation in the study 2. Severe ankle contracture, greater than 20° plantar flexion 3. Other unrelated neurological impairments or musculoskeletal injuries 4. Can not sit for 1 hour

Study Design


Related Conditions & MeSH terms


Intervention

Device:
IntelliStretch
The impaired ankle of the participants are trained 3 times a week for 6 weeks in the lab or at home. The participants use the portable robotic device to stretch the ankle and increase range of motion (ROM). Then subjects use their gained ROM immediately in the active movement training to play video games and improve motor control.

Locations

Country Name City State
United States University of Maryland, Baltimore Baltimore Maryland

Sponsors (1)

Lead Sponsor Collaborator
University of Maryland, Baltimore

Country where clinical trial is conducted

United States, 

References & Publications (13)

Ballaz L, Plamondon S, Lemay M. Ankle range of motion is key to gait efficiency in adolescents with cerebral palsy. Clin Biomech (Bristol, Avon). 2010 Nov;25(9):944-8. doi: 10.1016/j.clinbiomech.2010.06.011. Epub 2010 Jul 23. — View Citation

Damiano DL, Alter KE, Chambers H. New clinical and research trends in lower extremity management for ambulatory children with cerebral palsy. Phys Med Rehabil Clin N Am. 2009 Aug;20(3):469-91. doi: 10.1016/j.pmr.2009.04.005. — View Citation

Engsberg JR, Ross SA, Olree KS, Park TS. Ankle spasticity and strength in children with spastic diplegic cerebral palsy. Dev Med Child Neurol. 2000 Jan;42(1):42-7. doi: 10.1017/s0012162200000086. — View Citation

Gao F, Ren Y, Roth EJ, Harvey R, Zhang LQ. Effects of repeated ankle stretching on calf muscle-tendon and ankle biomechanical properties in stroke survivors. Clin Biomech (Bristol, Avon). 2011 Jun;26(5):516-22. doi: 10.1016/j.clinbiomech.2010.12.003. Epub 2011 Jan 6. — View Citation

Geiger R, Strasak A, Treml B, Gasser K, Kleinsasser A, Fischer V, Geiger H, Loeckinger A, Stein JI. Six-minute walk test in children and adolescents. J Pediatr. 2007 Apr;150(4):395-9, 399.e1-2. doi: 10.1016/j.jpeds.2006.12.052. — View Citation

Krebs HI, Hogan N, Aisen ML, Volpe BT. Robot-aided neurorehabilitation. IEEE Trans Rehabil Eng. 1998 Mar;6(1):75-87. doi: 10.1109/86.662623. — View Citation

Mankodi A, Azzabou N, Bulea T, Reyngoudt H, Shimellis H, Ren Y, Kim E, Fischbeck KH, Carlier PG. Skeletal muscle water T2 as a biomarker of disease status and exercise effects in patients with Duchenne muscular dystrophy. Neuromuscul Disord. 2017 Aug;27(8):705-714. doi: 10.1016/j.nmd.2017.04.008. Epub 2017 Apr 28. — View Citation

Novak I, McIntyre S, Morgan C, Campbell L, Dark L, Morton N, Stumbles E, Wilson SA, Goldsmith S. A systematic review of interventions for children with cerebral palsy: state of the evidence. Dev Med Child Neurol. 2013 Oct;55(10):885-910. doi: 10.1111/dmcn.12246. Epub 2013 Aug 21. — View Citation

Selles RW, Li X, Lin F, Chung SG, Roth EJ, Zhang LQ. Feedback-controlled and programmed stretching of the ankle plantarflexors and dorsiflexors in stroke: effects of a 4-week intervention program. Arch Phys Med Rehabil. 2005 Dec;86(12):2330-6. doi: 10.1016/j.apmr.2005.07.305. — View Citation

Sukal-Moulton T, Clancy T, Zhang LQ, Gaebler-Spira D. Clinical application of a robotic ankle training program for cerebral palsy compared to the research laboratory application: does it translate to practice? Arch Phys Med Rehabil. 2014 Aug;95(8):1433-40. doi: 10.1016/j.apmr.2014.04.010. Epub 2014 May 2. — View Citation

Willerslev-Olsen M, Andersen JB, Sinkjaer T, Nielsen JB. Sensory feedback to ankle plantar flexors is not exaggerated during gait in spastic hemiplegic children with cerebral palsy. J Neurophysiol. 2014 Feb;111(4):746-54. doi: 10.1152/jn.00372.2013. Epub 2013 Nov 13. — View Citation

Wu YN, Hwang M, Ren Y, Gaebler-Spira D, Zhang LQ. Combined passive stretching and active movement rehabilitation of lower-limb impairments in children with cerebral palsy using a portable robot. Neurorehabil Neural Repair. 2011 May;25(4):378-85. doi: 10.1177/1545968310388666. Epub 2011 Feb 22. — View Citation

Zhang M, Davies TC, Xie S. Effectiveness of robot-assisted therapy on ankle rehabilitation--a systematic review. J Neuroeng Rehabil. 2013 Mar 21;10:30. doi: 10.1186/1743-0003-10-30. — View Citation

* Note: There are 13 references in allClick here to view all references

Outcome

Type Measure Description Time frame Safety issue
Primary Changes of Active Range of Motion (AROM) The subjects will be asked to use their muscles to move the ankle joint and record the range of motion by the robot. AROM will be assessed at 3 time points: at the beginning and the end of 6-week training, and follow-up at 6 weeks after the training ends.
Secondary Changes of Modified Ashworth Scale (MAS) The MAS measures spasticity in patients with lesions of the Central Nervous System. MAS will be assessed at 3 time points: at the beginning and the end of 6-week training, and follow-up at 6 weeks after the training ends.
Secondary Changes of Selective Control Assessment of Lower Extremity (SCALE) SCALE is a clinical assessment developed to quantify selective voluntary motor control in patients with cerebral palsy SCALE will be assessed at 3 time points: at the beginning and the end of 6-week training, and follow-up at 6 weeks after the training ends.
Secondary Changes of Pediatric Balance Scale (PBS) PBS is a 14-item criterion-referenced measure that examines functional balance in the context of everyday tasks in the pediatric population. PBS will be assessed at 3 time points: at the beginning and the end of 6-week training, and follow-up at 6 weeks after the training ends.
Secondary Changes of the Timed Up and Go Test (TUG) TUG assesses mobility, balance, walking ability, and fall risk. TUG will be assessed at 3 time points: at the beginning and the end of 6-week training, and follow-up at 6 weeks after the training ends.
Secondary Changes of 6 Minute Walk Test (6MWT) The test assesses distance walked over 6 minutes as a sub-maximal test of aerobic capacity/endurance. 6MWT will be assessed at 3 time points: at the beginning and the end of 6-week training, and follow-up at 6 weeks after the training ends.
Secondary Changes of Passive Range of Motion (PROM) The robot will move the ankle joint of the subjects and record the range of motion. PROM will be assessed at 3 time points: at the beginning and the end of 6-week training, and follow-up at 6 weeks after the training ends.
Secondary Changes of the muscle strength Dorsiflexor and plantarflexor strength will be measured with the ankle keeping held at 0° dorsiflexion. The muscle strength will be assessed at 3 time points: at the beginning and the end of 6-week training, and follow-up at 6 weeks after the training ends.
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