NCT04904094

Brief Summary

This study will investigate the effect of a 6-week stretching intervention, consisting of a combination of a 2-week casting period and a home-based stretching program of the plantar flexors and hamstrings, on muscle and tendon lengths, range of motion, stiffness, and functional muscle strength. The study will include patients with spastic cerebral palsy aged between 4 and 11 years old with a Gross Motor Function Classification Score (GMFCS) level between I and III.

Trial Health

57
Monitor

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
30

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Feb 2020

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
recruiting

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

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

February 1, 2020

Completed
11 months until next milestone

First Submitted

Initial submission to the registry

December 18, 2020

Completed
5 months until next milestone

First Posted

Study publicly available on registry

May 27, 2021

Completed
4.7 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

February 1, 2026

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

February 1, 2026

Completed
Last Updated

April 17, 2025

Status Verified

December 1, 2024

Enrollment Period

6 years

First QC Date

December 18, 2020

Last Update Submit

April 14, 2025

Conditions

Keywords

cerebral palsyspastic cerebral palsystretching interventionmuscle morphologyrange of motionstiffnessspasticity

Outcome Measures

Primary Outcomes (3)

  • Change in muscle belly and tendon length of the medial gastrocnemius and semitendinosus

    Estimation of the muscle belly and tendon length by 3D freehand ultrasonography. The primary outcome will be the muscle belly/tendon length ratio.

    Between baseline, casting removal (2 to 4 weeks after baseline) and 6 to 8 weeks after baseline.

  • Change of range of motion of the ankle and knee joint

    Evaluation by an instrumented spasticity assessment

    Between baseline, casting removal (2 to 4 weeks after baseline) and 6 to 8 weeks after baseline.

  • Change of range of motion of the ankle and knee joint

    Evaluation by goniometry

    Between baseline, casting removal (2 to 4 weeks after baseline) and 6 to 8 weeks after baseline.

Secondary Outcomes (4)

  • Change in muscle neural (spasticity) and non-neural (stiffness) hyper-resistance

    Between baseline, casting removal (2 to 4 weeks after baseline) and 6 to 8 weeks after baseline.

  • Change in functional muscle strength

    Between baseline, casting removal (2 to 4 weeks after baseline) and 6 to 8 weeks after baseline.

  • Change in muscle echointensity

    Between baseline, casting removal (2 to 4 weeks after baseline) and 6 to 8 weeks after baseline.

  • Change in muscle volume

    Between baseline, casting removal (2 to 4 weeks after baseline) and 6 to 8 weeks after baseline.

Study Arms (2)

Intervention group

EXPERIMENTAL

This group will receive casting of the lower limb for approximately 2 weeks combined with a passive stretching program of the knee flexors, followed by a homebased stretching exercise program for the plantar flexors and hamstrings for 4 weeks after casting.

Other: Casting of the lower limb and homebased stretching exercise program.

Control group

NO INTERVENTION

This group will continue their usual care or normal routine treatment, i.e. physiotherapy and orthotic devices.

Interventions

Lower leg casting in combination with removable upper leg casts for approximately 2 weeks and stretching exercises during casting and 4 weeks after casting.

Intervention group

Eligibility Criteria

Age4 Years - 11 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17)

You may qualify if:

  • Confirmed diagnosis of spastic cerebral palsy
  • Aged 4-12 years
  • GMFCS levels I-III (GMFCS = Gross Motor Function Classification Score, expressing the overall functional level of impairment)
  • Sufficient cooperation to comprehend and complete the test procedure
  • Indication for casting of the lower limb

You may not qualify if:

  • Non-ambulatory
  • Botulinum toxin A injections six months prior to enrollment
  • Lower limb surgery two years prior to enrollment
  • Selective dorsal rhizotomy as treatment history
  • Presence of ataxia or dystonia
  • Cognitive problems that impede measurements
  • Severe co-morbidities (severe epilepsy, non-correctable visual impairment, autism spectrum disorders, mental problems that prevent comprehensiveness of the tasks)

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

UZ Leuven

Leuven, 3000, Belgium

RECRUITING

Related Publications (6)

  • Franki I, Desloovere K, De Cat J, Feys H, Molenaers G, Calders P, Vanderstraeten G, Himpens E, Van Broeck C. The evidence-base for basic physical therapy techniques targeting lower limb function in children with cerebral palsy: a systematic review using the International Classification of Functioning, Disability and Health as a conceptual framework. J Rehabil Med. 2012 May;44(5):385-95. doi: 10.2340/16501977-0983.

    PMID: 22549646BACKGROUND
  • Lee GP, Ng GY. Effects of stretching and heat treatment on hamstring extensibility in children with severe mental retardation and hypertonia. Clin Rehabil. 2008 Sep;22(9):771-9. doi: 10.1177/0269215508090067.

    PMID: 18728130BACKGROUND
  • Palisano RJ, Rosenbaum P, Bartlett D, Livingston MH. Content validity of the expanded and revised Gross Motor Function Classification System. Dev Med Child Neurol. 2008 Oct;50(10):744-50. doi: 10.1111/j.1469-8749.2008.03089.x.

    PMID: 18834387BACKGROUND
  • Pin T, Dyke P, Chan M. The effectiveness of passive stretching in children with cerebral palsy. Dev Med Child Neurol. 2006 Oct;48(10):855-62. doi: 10.1017/S0012162206001836.

    PMID: 16978468BACKGROUND
  • Theis N, Korff T, Kairon H, Mohagheghi AA. Does acute passive stretching increase muscle length in children with cerebral palsy? Clin Biomech (Bristol). 2013 Nov-Dec;28(9-10):1061-7. doi: 10.1016/j.clinbiomech.2013.10.001. Epub 2013 Oct 10.

    PMID: 24210836BACKGROUND
  • van den Noort JC, Bar-On L, Aertbelien E, Bonikowski M, Braendvik SM, Brostrom EW, Buizer AI, Burridge JH, van Campenhout A, Dan B, Fleuren JF, Grunt S, Heinen F, Horemans HL, Jansen C, Kranzl A, Krautwurst BK, van der Krogt M, Lerma Lara S, Lidbeck CM, Lin JP, Martinez I, Meskers C, Metaxiotis D, Molenaers G, Patikas DA, Remy-Neris O, Roeleveld K, Shortland AP, Sikkens J, Sloot L, Vermeulen RJ, Wimmer C, Schroder AS, Schless S, Becher JG, Desloovere K, Harlaar J. European consensus on the concepts and measurement of the pathophysiological neuromuscular responses to passive muscle stretch. Eur J Neurol. 2017 Jul;24(7):981-e38. doi: 10.1111/ene.13322. Epub 2017 May 29.

    PMID: 28557247BACKGROUND

MeSH Terms

Conditions

Cerebral PalsyMuscle Spasticity

Condition Hierarchy (Ancestors)

Brain Damage, ChronicBrain DiseasesCentral Nervous System DiseasesNervous System DiseasesMuscular DiseasesMusculoskeletal DiseasesMuscle HypertoniaNeuromuscular ManifestationsNeurologic ManifestationsSigns and SymptomsPathological Conditions, Signs and Symptoms

Study Officials

  • Kaat Desloovere, prof. dr.

    KU Leuven

    STUDY DIRECTOR

Central Study Contacts

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NON RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: We will include patients who receive casting at the lower limb for the intervention group. Patient with no indication for treatment will be asked for participation in the control group. The children in the control group will continue their usual care or normal routine treatment, i.e. physiotherapy and orthotic devices.
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

December 18, 2020

First Posted

May 27, 2021

Study Start

February 1, 2020

Primary Completion

February 1, 2026

Study Completion

February 1, 2026

Last Updated

April 17, 2025

Record last verified: 2024-12

Locations