ClinicalTrials.gg
CompletedNCT05473182Updated Jul 31, 2025Results posted

IndieTrainer: Enabling Individuals With Cerebral Palsy to Receive Power Mobility Training

An interventional study of IndieTrainer system in Cerebral Palsy and Conditions Similar to Cerebral Palsy, sponsored by Grand Valley State University. Completed at 1 site in United States. Open to participants aged 3 Years to 21 Years. Per ClinicalTrials.gov, last updated 2025-07-31.

Sponsored by Grand Valley State University · Not applicable, Interventional, and Treatment

Phase
Not applicable
Study type
Interventional
Enrollment
25
Allocation
Not applicable
Ages
3 Years to 21 Years
Sex
All
01

Study summary

Power wheelchairs offer children who are unable to independently opportunities for participation in social, educational, and leisure activities. Unfortunately, children who have severe cognitive, motor, or sensory impairments may need extended training to be able to master the power wheelchairs skills needed to "qualify" for their own power wheelchairs. The IndieTrainer system was developed to address this need. The IndieTrainer system is comprised of the IndieGo device and video-game modules. The IndieGo device temporarily converts a manual wheelchair into a powered wheelchair, thereby allowing children to remain in their own manual wheelchair and use their own custom seating system during power wheelchair skills training activities. The video-game modules are integrated into the IndieGo device such that the video games can be played on a television screen using the specific access method used to control the IndieGo (i.e., switch or joystick). The IndieTrainer system is designed to allow a child to practice power wheelchair skills as part of the video-game modules or as part of more traditional power wheelchair skills training activities wherein children are able to actively explore the environment and practice executing actual wheelchair skills. This study will evaluate the use of the IndieTrainer system in children with cerebral palsy, ages 3-21 years.

02

Conditions studied

  • Cerebral Palsy
  • Conditions Similar to Cerebral Palsy

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03

In context

Cerebral Palsy

1,936 studies on the registry are indexed under Cerebral Palsy; 458 are open to participants now.

This study's enrollment of 25 is below the median of 34 across 1,431 interventional studies indexed under Cerebral Palsy.

Browse Cerebral Palsy studies →

Lead sponsor

Grand Valley State University is the lead sponsor of 11 studies on the registry; 2 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
3 Years to 21 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Has a diagnosis of cerebral palsy or similar conditions with functional abilities consistent with a Gross Motor Classification System Classification System Level IV or Level V
  • Inability to functionally self-propel a manual wheelchair
  • Does not have an individually prescribed powered wheelchair
  • Currently using a manual wheelchair or adaptive stroller that can be safely used with the IndieTrainer system (i.e., functioning wheel brakes to remain locked onto platform, etc.) as assessed by the PI
  • Has at least one parent/caregiver who is able to converse in English (as assessed by the PI during interactions over the phone and in person) due to safety concerns

Exclusion criteria

Exclusion Criteria:

  • Any condition or issue that would prevent a child from safely using the IndieTrainer system as determined by the PI, a licensed physical therapist.
  • The child and his/her manual wheelchair or adaptive stroller combined must weigh \<300 pounds to safely use the IndieTrainer.

    • A diagnosis of a progressive condition with the potential for functional decline across the study period, such as spinal muscular atrophy, Duchenne muscular dystrophy, etc.
05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
25 participants (actual)

Study arms

  • Other
    Single arm: All child participants receive the intervention

    All child participants receive power wheelchair skills training using the IndieTrainer system.

    Other: IndieTrainer system

Interventions

  • OtherIndieTrainer system

    The IndieTrainer system is comprised of the IndieGo device and video-game modules. The IndieGo device temporarily converts a manual wheelchair into a powered wheelchair, thereby allowing children to remain in their own manual wheelchair and use their own custom seating system during power wheelchair skills training activities. The video-game modules are integrated into the IndieGo device such that the video games can be played on a TV screen using the specific access method used to control the IndieGo (i.e., switch or joystick). The IndieTrainer system is designed to allow a child to practice power wheelchair skills as part of the video-game modules or as part of more traditional power wheelchair skills training activities wherein children are able to actively explore the environment and practice executing actual wheelchair skills.

06

What researchers measure

Primary outcomes

  1. Change in Child Participants' Understanding How to Use a Power Mobility Device Between Baseline and Immediately After the Conclusion of the Intervention Period at Week 3

    This outcome will be assessed using each child participant's score (from a minimum of 1 to a maximal of 8) on the Assessment of Learning Powered mobility use. The Assessment of Learning Powered mobility use measures a child's understanding of how to use a power mobility device. Higher scores indicate a better outcome.

    Time frame: From baseline to immediately after the conclusion of the intervention period at Week 3

  2. Change in Child Participants' Power Mobility Skill Performance Between Baseline and Immediately After the Conclusion of the Intervention Period at Week 3

    This outcome will be assessed using the Wheelchair Skills Checklist that evaluates a child's performance of 7 items, each reflecting a specific power mobility skill. Each item is scored from a minimum of 0 to a maximum of 2 with a higher score indicating a better outcome. Total scores for all 7 items range from a minimum of 0 to a maximum of 14 with higher scores therefore indicate a better outcome.

    Time frame: From baseline to immediately after the conclusion of the intervention period at Week 3

  3. Change in Parental/Caregiver Perceptions of Their Child's Power Mobility Skills Performance Between Baseline and Immediately Following the End of the Intervention Period at Week 3.

    This outcome will be assessed using the Canadian Occupational Performance Measure to rate parent/caregiver perceptions of their child's performance of 5 power mobility skills. Each skill is rated from a minimum of 1 to a maximum of 10. A higher score indicates a better outcome. The total score on all 5 items ranges from a minimum of 5 to a maximum of 50. A higher score indicates a better outcome.

    Time frame: From baseline to immediately after the conclusion of the intervention period at Week 3

  4. Change in Child Participants' Understanding How to Use a Power Mobility Device From Immediately After the Conclusion of the Intervention Period at Week 3 to the End of the Follow-up Period at Week 7

    This outcome will be assessed using each child participant's score (from a minimum of 1 to a maximal of 8) on the Assessment of Learning Powered mobility use. The Assessment of Learning Powered mobility use measures a child's understanding of how to use a power mobility device. Higher scores indicate a better outcome.

    Time frame: From immediately after the conclusion of the intervention period at Week 3 to the end of the follow-up period at Week 7

  5. Change in Child Participants' Power Mobility Skill Performance Between the Conclusion of the Intervention Period at Week 3 and the End of the Follow up Period at Week 7.

    This outcome will be assessed using the Wheelchair Skills Checklist that evaluates a child's performance of 7 items, each reflecting a specific power mobility skill. Each item is scored from a minimum of 0 to a maximum of 2 with a higher score indicating a better outcome. Total scores for all 7 items range from a minimum of 0 to a maximum of 14 with higher scores therefore indicate a better outcome.

    Time frame: From immediately after the conclusion of the intervention period at Week 3 to the end of the follow-up period at Week 7

Secondary outcomes

  1. Parent/Caregiver Satisfaction With the IndieTrainer System Intervention Immediately After the Conclusion of the Intervention at Week 3

    This outcome will be assessed through use of the Client Satisfaction Questionnaire-8 an 8-item questionnaire exploring stakeholder satisfaction with an intervention. Response choices for each item range from minimum of 1 to a maximum of 4. Higher scores indicate higher satisfaction. Total scores on the Client Satisfaction Questionnaire-8 range from a minimum of 8 to a maximum of 32. Higher total scores indicate higher satisfaction with the intervention.

    Time frame: Immediately after the conclusion of the intervention at Week 3

07

Results

Posted Jul 31, 2025

Participant flow

Although child-parent/caregiver dyads were enrolled in this study, only child participants received the intervention.

Participant flow — Overall Study
MilestoneSingle Arm: All Child Participants Receive the Intervention
Started25
Completed25
Not completed0

Outcome measures

PrimaryChange in Child Participants' Understanding How to Use a Power Mobility Device Between Baseline and Immediately After the Conclusion of the Intervention Period at Week 3

This outcome will be assessed using each child participant's score (from a minimum of 1 to a maximal of 8) on the Assessment of Learning Powered mobility use. The Assessment of Learning Powered mobility use measures a child's understanding of how to use a power mobility device. Higher scores indicate a better outcome.

Time frame:
From baseline to immediately after the conclusion of the intervention period at Week 3
Reported as:
Mean · score on a scale
Change in Child Participants' Understanding How to Use a Power Mobility Device Between Baseline and Immediately After the Conclusion of the Intervention Period at Week 3
score on a scaleSingle Arm: All Child Participants Receive the Intervention
Change in Child Participants' Understanding How to Use a Power Mobility Device Between Baseline and Immediately After the Conclusion of the Intervention Period at Week 32.68 ± 0.8524
PrimaryChange in Child Participants' Power Mobility Skill Performance Between Baseline and Immediately After the Conclusion of the Intervention Period at Week 3

This outcome will be assessed using the Wheelchair Skills Checklist that evaluates a child's performance of 7 items, each reflecting a specific power mobility skill. Each item is scored from a minimum of 0 to a maximum of 2 with a higher score indicating a better outcome. Total scores for all 7 items range from a minimum of 0 to a maximum of 14 with higher scores therefore indicate a better outcome.

Time frame:
From baseline to immediately after the conclusion of the intervention period at Week 3
Reported as:
Mean · score on a scale
Change in Child Participants' Power Mobility Skill Performance Between Baseline and Immediately After the Conclusion of the Intervention Period at Week 3
score on a scaleSingle Arm: All Child Participants Receive the Intervention
Change in Child Participants' Power Mobility Skill Performance Between Baseline and Immediately After the Conclusion of the Intervention Period at Week 31.1486 ± 0.3535
PrimaryChange in Parental/Caregiver Perceptions of Their Child's Power Mobility Skills Performance Between Baseline and Immediately Following the End of the Intervention Period at Week 3.

This outcome will be assessed using the Canadian Occupational Performance Measure to rate parent/caregiver perceptions of their child's performance of 5 power mobility skills. Each skill is rated from a minimum of 1 to a maximum of 10. A higher score indicates a better outcome. The total score on all 5 items ranges from a minimum of 5 to a maximum of 50. A higher score indicates a better outcome.

Time frame:
From baseline to immediately after the conclusion of the intervention period at Week 3
Reported as:
Mean · score on a scale
Change in Parental/Caregiver Perceptions of Their Child's Power Mobility Skills Performance Between Baseline and Immediately Following the End of the Intervention Period at Week 3.
score on a scaleSingle Arm: All Child Participants Receive the Intervention
Change in Parental/Caregiver Perceptions of Their Child's Power Mobility Skills Performance Between Baseline and Immediately Following the End of the Intervention Period at Week 3.6.864 ± 1.4739
PrimaryChange in Child Participants' Understanding How to Use a Power Mobility Device From Immediately After the Conclusion of the Intervention Period at Week 3 to the End of the Follow-up Period at Week 7

This outcome will be assessed using each child participant's score (from a minimum of 1 to a maximal of 8) on the Assessment of Learning Powered mobility use. The Assessment of Learning Powered mobility use measures a child's understanding of how to use a power mobility device. Higher scores indicate a better outcome.

Time frame:
From immediately after the conclusion of the intervention period at Week 3 to the end of the follow-up period at Week 7
Reported as:
Mean · score on a scale
Change in Child Participants' Understanding How to Use a Power Mobility Device From Immediately After the Conclusion of the Intervention Period at Week 3 to the End of the Follow-up Period at Week 7
score on a scaleSingle Arm: All Child Participants Receive the Intervention
Change in Child Participants' Understanding How to Use a Power Mobility Device From Immediately After the Conclusion of the Intervention Period at Week 3 to the End of the Follow-up Period at Week 70.16 ± 0.3742
SecondaryParent/Caregiver Satisfaction With the IndieTrainer System Intervention Immediately After the Conclusion of the Intervention at Week 3

This outcome will be assessed through use of the Client Satisfaction Questionnaire-8 an 8-item questionnaire exploring stakeholder satisfaction with an intervention. Response choices for each item range from minimum of 1 to a maximum of 4. Higher scores indicate higher satisfaction. Total scores on the Client Satisfaction Questionnaire-8 range from a minimum of 8 to a maximum of 32. Higher total scores indicate higher satisfaction with the intervention.

Time frame:
Immediately after the conclusion of the intervention at Week 3
Reported as:
Mean · score on a scale
Parent/Caregiver Satisfaction With the IndieTrainer System Intervention Immediately After the Conclusion of the Intervention at Week 3
score on a scaleSingle Arm: All Child Participants Receive the Intervention
Parent/Caregiver Satisfaction With the IndieTrainer System Intervention Immediately After the Conclusion of the Intervention at Week 331.52 ± .77
PrimaryChange in Child Participants' Power Mobility Skill Performance Between the Conclusion of the Intervention Period at Week 3 and the End of the Follow up Period at Week 7.

This outcome will be assessed using the Wheelchair Skills Checklist that evaluates a child's performance of 7 items, each reflecting a specific power mobility skill. Each item is scored from a minimum of 0 to a maximum of 2 with a higher score indicating a better outcome. Total scores for all 7 items range from a minimum of 0 to a maximum of 14 with higher scores therefore indicate a better outcome.

Time frame:
From immediately after the conclusion of the intervention period at Week 3 to the end of the follow-up period at Week 7
Reported as:
Mean · score on a scale
Change in Child Participants' Power Mobility Skill Performance Between the Conclusion of the Intervention Period at Week 3 and the End of the Follow up Period at Week 7.
score on a scaleSingle Arm: All Child Participants Receive the Intervention
Change in Child Participants' Power Mobility Skill Performance Between the Conclusion of the Intervention Period at Week 3 and the End of the Follow up Period at Week 7.0.0514 ± 0.0911

Adverse events

Collected over 7 weeks. Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Single Arm: All Participants Receive the Intervention0/25 (0%)0/25 (0%)0/25 (0%)

Baseline characteristics

Baseline data were not collected for parents/caregivers.

Age, Continuous
Age, Continuous(Months)Single Arm: All Child Participants Receive the Intervention
Mean109 ± 47
Sex: Female, Male
Sex: Female, Male(Participants)Single Arm: All Child Participants Receive the Intervention
Female15
Male10
Ethnicity (NIH/OMB)
Ethnicity (NIH/OMB)(Participants)Single Arm: All Child Participants Receive the Intervention
Hispanic or Latino2
Not Hispanic or Latino23
Unknown or Not Reported0
Race (NIH/OMB)
Race (NIH/OMB)(Participants)Single Arm: All Child Participants Receive the Intervention
American Indian or Alaska Native0
Asian0
Native Hawaiian or Other Pacific Islander0
Black or African American4
White20
More than one race1
Unknown or Not Reported0
Region of Enrollment
Region of Enrollment(participants)Single Arm: All Child Participants Receive the Intervention
United States25
Assessment of Learning Powered Mobility Use
Assessment of Learning Powered Mobility Use(units on a scale)Single Arm: All Child Participants Receive the Intervention
Mean2.24 ± .78
08

Study locations

1 site
  • Grand Valley State University
    Grand Rapids, Michigan 49504, United States
09

References and documents

Study documents

PDFs hosted by the registry, ClinicalTrials.gov.

Individual participant data

Plan to share: Yes — Consist with NIH requirements, at the conclusion of the study, deidentified data collected in this study will be placed in a repository where it can be accessed by other researchers for future studies.

Supporting information: Study protocol, Informed consent form, Clinical study report

Time frame: IPD will be made available 6 months following publication of study results

Access criteria: Study results and summaries will be publicly available at clinicaltrials.gov. For specific IPD, the study PI and co-investigators will review all requests for data sharing. Data will be shared for purposes of secondary analysis, contribution to a population-related database, or similar reasons that are intended to advance the evidence-based provision of family-centered care for children with disabilities.

10

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Ran from Sep 2022 to primary completion in Oct 2023, 13 months.

Results were first posted in Jul 2025, 1 year 9 months after primary completion.

Of 902 non-industry interventional studies with no phase under Cerebral Palsy, half reached primary completion within 12 months of starting (the median), counting those still running; a quarter within 5 and three quarters within 31. This study's 13 months is close to that.

Counting every sponsor, half of 921 studies reached it within 12 months; a quarter within 5 and three quarters within 31.

How these figures are worked out, and which studies are left out of them.

Registered
Jul 21, 2022
First posted
Jul 25, 2022
StartActual
Sep 8, 2022
Primary completionActual
Oct 31, 2023
CompletionActual
Oct 31, 2023
Results first posted
Jul 31, 2025
Last update
Jul 31, 2025
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Jul 31, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT05473182
Lead sponsor
Grand Valley State University
Responsible party
Lisa Kenyon (Professor, Grand Valley State University) — Principal investigator
First posted
Jul 25, 2022
Start date
Sep 8, 2022
Primary completion
Oct 31, 2023
Completion
Oct 31, 2023
Results posted
Jul 31, 2025
Last update
Jul 31, 2025

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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