NCT07316985

Brief Summary

This observational study is designed to investigate the time-dynamic characteristics of gait variability in children with spastic cerebral palsy (SCP). A total of 36 children with SCP and 36 age-, sex-, and BMI-matched typically developing children are recruited from the Children's Rehabilitation Center of the Affiliated Hospital of Binzhou Medical University. Using a portable gait analysis system (IDEEA, Minisun, USA) and a wireless surface electromyography system (Delsys, USA), participants perform a 3-minute continuous walking test at a self-selected comfortable speed. Key spatiotemporal gait parameters and electromyographic root mean square (RMS) values of the tibialis anterior and gastrocnemius muscles are assessed at predefined time points (10 seconds, 1 minute, 2 minutes, and 3 minutes). This study aims to examine temporal changes in gait variability and muscle activation during continuous walking in children with SCP, with the objective of identifying potential time points that may inform the optimization of walking-rest intervals in rehabilitation training.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
72

participants targeted

Target at P50-P75 for all trials

Timeline
Completed

Started Jun 2023

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

June 1, 2023

Completed
1.5 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2024

Completed
1 month until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2024

Completed
11 months until next milestone

First Submitted

Initial submission to the registry

November 17, 2025

Completed
2 months until next milestone

First Posted

Study publicly available on registry

January 5, 2026

Completed
Last Updated

March 27, 2026

Status Verified

March 1, 2026

Enrollment Period

1.5 years

First QC Date

November 17, 2025

Last Update Submit

March 23, 2026

Conditions

Keywords

Gait VariabilityTime-Dynamic AnalysisSurface ElectromyographyRehabilitation TrainingMotor FunctionChildrenSpatiotemporal Gait Parameters

Outcome Measures

Primary Outcomes (1)

  • Change in Step Time

    Step time was captured using the IDEEA 3.01 portable gait analysis system during a 3-minute continuous walking test. Step time values at 10 seconds, 1 minute, 2 minutes, and 3 minutes were compared to quantify temporal changes in gait variability in children with spastic cerebral palsy.

    10 seconds, 1 minute, 2 minutes, 3 minutes

Secondary Outcomes (7)

  • Change in EMG RMS of Tibialis Anterior (µV)

    10 seconds, 1 minute, 2 minutes, and 3 minutes after walking initiation

  • Change in EMG RMS of Gastrocnemius (µV)

    3-minute continuous walking test

  • Change in Energy Expenditure (kCal/min)

    10 seconds, 1 minute, 2 minutes, and 3 minutes after walking initiation

  • Change in Stride Length (cm)

    10 seconds, 1 minute, 2 minutes, 3 minutes

  • Change in Cadence

    10 seconds, 1 minute, 2 minutes, 3 minutes

  • +2 more secondary outcomes

Study Arms (2)

Spastic Cerebral Palsy Group

Children diagnosed with spastic cerebral palsy (SCP) according to the Chinese Guidelines for Cerebral Palsy Rehabilitation (2022). Participants aged 3-6 years with Gross Motor Function Classification System (GMFCS) levels I-II performed a 3-minute continuous walking test at a self-selected comfortable speed. Gait and surface electromyography (EMG) parameters were collected to evaluate time-dependent gait variability and muscle activation patterns.

Other: 3-Minute Walking Gait and Surface Electromyography Assessment

Healthy Control Group

Age-, sex-, and BMI-matched typically developing children without neurological or musculoskeletal disorders. Participants performed the same 3-minute walking test protocol as the SCP group. Gait and surface electromyography data were used as reference values for comparison of spatiotemporal gait parameters and muscle activity changes over time.

Other: 3-Minute Walking Gait and Surface Electromyography Assessment

Interventions

Participants performed a 3-minute continuous walking test at a self-selected comfortable speed on a flat surface. Gait parameters were recorded using a portable gait analysis system (IDEEA 3.01, Minisun, USA), and bilateral tibialis anterior and gastrocnemius muscle activity was measured using a Delsys wireless surface EMG system. This standardized assessment procedure was applied to all participants to evaluate time-dependent gait variability and muscle activation patterns.

Healthy Control GroupSpastic Cerebral Palsy Group

Eligibility Criteria

Age3 Years - 6 Years
Sexall
Healthy VolunteersYes
Age GroupsChild (0-17)
Sampling MethodNon-Probability Sample
Study Population

Children aged 3 to 6 years diagnosed with spastic cerebral palsy (SCP) who were receiving rehabilitation therapy at the Children's Rehabilitation Center of the Affiliated Hospital of Binzhou Medical University, and age-, sex-, and BMI-matched healthy children without neurological or musculoskeletal disorders who served as controls.

You may qualify if:

  • Children diagnosed with spastic cerebral palsy (SCP) according to the Chinese Guidelines for Cerebral Palsy Rehabilitation (2022).
  • Gross Motor Function Classification System (GMFCS) levels I-II.
  • Aged between 3 and 6 years.
  • Able to understand and follow verbal instructions.
  • Informed consent obtained from parents or legal guardians.

You may not qualify if:

  • Inability to cooperate with gait or EMG testing.
  • Presence of visual or hearing impairments.
  • History of severe epilepsy or other systemic diseases.
  • Received botulinum toxin or antispastic medication within the past 6 months.
  • Incomplete gait data or failure to complete the walking test.
  • For healthy controls: any neurological, orthopedic, or musculoskeletal disorder, or recent trauma affecting gait.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Affiliated Hospital of Binzhou Medical University

Binzhou, Shandong, 256603, China

Location

MeSH Terms

Conditions

Cerebral Palsy

Condition Hierarchy (Ancestors)

Brain Damage, ChronicBrain DiseasesCentral Nervous System DiseasesNervous System Diseases

Study Design

Study Type
observational
Observational Model
CASE CONTROL
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR INVESTIGATOR
PI Title
Principal Investigator

Study Record Dates

First Submitted

November 17, 2025

First Posted

January 5, 2026

Study Start

June 1, 2023

Primary Completion

December 1, 2024

Study Completion

December 31, 2024

Last Updated

March 27, 2026

Record last verified: 2026-03

Data Sharing

IPD Sharing
Will share

De-identified individual participant data (IPD), including gait parameters, electromyography results, and energy expenditure values, will be available upon reasonable request after publication. Requests can be made to the corresponding author at the Affiliated Hospital of Binzhou Medical University. Data will be shared for academic research purposes only, in compliance with institutional and ethical regulations.

Shared Documents
STUDY PROTOCOL, SAP, ANALYTIC CODE
Time Frame
De-identified individual participant data (IPD), including gait parameters, electromyography results, and energy expenditure values, together with the study protocol, statistical analysis plan, and analytic code, will be available beginning 6 months after publication of the primary results and will remain accessible for 3 years. Data will be provided to qualified researchers upon reasonable request and institutional approval through a controlled access process managed by the Affiliated Hospital of Binzhou Medical University.
Access Criteria
Qualified researchers affiliated with academic or non-profit institutions may request access to de-identified individual participant data (IPD) and supporting materials, including the study protocol, statistical analysis plan, and analytic code. Data requests must include a brief proposal describing the intended use and will be reviewed by the Institutional Ethics Committee of the Affiliated Hospital of Binzhou Medical University. Upon approval, data will be shared through a secure institutional data-sharing platform. All shared data will be de-identified and used exclusively for academic research in compliance with institutional and ethical regulations.
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