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CompletedNCT04614207Updated Jun 14, 2022

Cerebral Palsy & Predictors of Physical Activity

An observational study in Cerebral Palsy, sponsored by University of Southern Denmark. Completed at 1 site in Denmark. Open to participants aged 8 Years to 15 Years. Per ClinicalTrials.gov, last updated 2022-06-14.

Sponsored by University of Southern Denmark · Observational

Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
123
Ages
8 Years to 15 Years
Sex
All
01

Study summary

Children and adolescents with cerebral palsy may be trapped in a vicious circle of low physical fitness, early fatigue in daily activities, resulting in deconditioning and a further decrease in physical activity. From this perspective, establishing a healthy and active lifestyle during childhood is even more important for individuals with a disability, who are at higher risk for functional limitations and general fatigue in addition with developing secondary' conditions such as cardiovascular disease, diabetes, and obesity. Furthermore, physical activity has a positive impact on quality of life, but it remains unknown which factors that influence high levels of habitual physical activity in children and adolescents with cerebral palsy.

The present research project will investigate predictors of habitual physical activity in children and adolescents with cerebral palsy with the perspective of providing evidence on optimizing physical activity and consequently improved overall health.

Read the detailed description

Cerebral palsy (CP) is a condition that describes a group of disorders (altered muscle tone, movements disorder, muscle weakness, ataxia and rigidity) covering the development of movement and posture causing activity limitations and reduced quality of life (1). In Denmark 2000-2500 children and adolescents under the age of 18 are living with the diagnosis of cerebral palsy. This is equivalent to two children being diagnosed with cerebral palsy per 1000 living births (2). Though, CP is a non-progressive diagnosis, it is a lifelong condition that requires attention through most of the patient's life, as impairments that inhibit performance of activities and participation in daily living develops (1, 3). Children and adolescents with cerebral palsy are a vulnerable group who find it challenging to meet the physical activity guidelines, therefore predisposing them to the negative health implications associated with low levels of physical activity and high levels of sedentary time (4).

Although there are no specific evidence-based physical activity guidelines for children and adolescents with cerebral palsy, it is clear that they have lower levels of physical activity than their peers, that they do not meet the World Health Organization's physical activity guidelines, and that their level of mobility limitation is negatively associated with their level of physical activity (5, 6).

Therefore, the objective of this study is to investigate predictors of physical activity and inactivity in children and adolescents with cerebral palsy with the perspective of providing evidence-based motivators for optimized physical activity, with the potential benefit of improved overall health and quality of life.

This is a prospective clinical cohort study. Eligible children and adolescents and their families will be identified through the Danish Health Data Authority after which the parents/guardians will receive written information about the study through digital post, e-Boks.

Parents/guardians will be asked to fill out questionnaires on quality of life, overall health, pain and participation in normal daily activities, and the children/adolescents will be asked to wear accelerometers for seven consecutive days. Data from the Cerebral Palsy FollowUp Program (CPUP) register will be collected.

The project will be implemented in accordance with the Helsinki Declaration II. It has been approved by the Danish Data protection Agency and has been declared not notifiable by the Regional Committee on Health Research Ethics, cf. Committee Act Art. 14, paragraph 1 (S-20192000-23). All subject data will be treated confidentially and in confidence under the Danish laws on personal data and health.

This study will provide novel evidence that will improve the knowledge on how to optimize physical activity, and thus improve overall health and quality of life, for the current group of children and adolescents. Due to wide inclusion criteria, this knowledge will constitute a high level of generalizability and most probably high acceptance by the treating health professionals as the majority of variables of interest already are implemented in a current cerebral palsy registry. Finally, the findings may be implemented in evidence-based physical activity guidelines, which currently are lacking for the present group of children and adolescents with cerebral palsy.

  1. Koman LA, Smith BP, Shilt JS. Cerebral palsy. Lancet (London, England). 2004;363(9421):1619-31.
  2. Frøslev-Friis C, Dunkhase-Heinl U, Andersen JD, Stausbøl-Grøn B, Hansen AV, Garne E. Epidemiology of cerebral palsy in Southern Denmark. Danish medical journal. 2015;62(1):A4990.
  3. Bell KJ, Ounpuu S, DeLuca PA, Romness MJ. Natural progression of gait in children with cerebral palsy. J Pediatr Orthop. 2002;22(5):677-82.
  4. Organization WHO. Global recommendations for physical activity for health. Switzerland2010.
  5. Carlon SL, Taylor NF, Dodd KJ, Shields N. Differences in habitual physical activity levels of young people with cerebral palsy and their typically developing peers: a systematic review. Disability and rehabilitation. 2013;35(8):647-55.
  6. Bjornson KF, Belza B, Kartin D, Logsdon R, McLaughlin JF. Ambulatory physical activity performance in youth with cerebral palsy and youth who are developing typically. Phys Ther. 2007;87(3):248-57.
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Conditions studied

  • Cerebral Palsy

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Keywords

  • Physical activity
  • Accelerometry
  • Quality of life
  • Children
  • Adolescents
03

In context

Cerebral Palsy

1,853 studies on the registry are indexed under Cerebral Palsy; 435 are open to participants now.

This study's enrollment of 123 is above the median of 63 across 455 observational studies indexed under Cerebral Palsy.

Browse Cerebral Palsy studies →

Lead sponsor

University of Southern Denmark is the lead sponsor of 327 studies on the registry; 45 are open to participants now.

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

04

Who can participate

Ages eligible
8 Years to 15 Years
Sexes eligible
All
Sampling method
Non-probability sample

Study population

All children and adolescents between the ages of 8 and 15 years, diagnosed with cerebral palsy in Denmark. The study population will be selected thru the Danish Health Data Authority ('Sundhedsdatastyrelsen') where social security numbers of parents/guardians sharing an adresse with an individual from the study population, will be used as a means of contact.

Inclusion criteria

  • Children born in the timeperiod 2003 - 2013
  • Diagnosed with cerebral palsy (according to current classifications)
  • Gross Motor Function Classification System (GMFCS) level I - III
  • Registered in the Cerebral Palsy Follow-up Registry (CPUP), Denmark (As explained in the Statistical Analysis Plan dated June 6, 2022, CPUP data will be used were available. However, being registred in the CPUP database is no longer a requirement).

Exclusion criteria

Exclusion criteria:

  • Parents/guardians unable to read and understand Danish.
05

Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
123 participants (actual)
Target follow-up
3 Years
Patient registry
Yes
06

What researchers measure

Primary outcomes

  1. Model 1a: Prediction of habitual physical activity using data from the CPUP registry

    Habitual physical activity will be assessed objectively using accelerometer counts. Multiple linear regression analyzes between accelerometer counts (response variable) and all CPUP variables within each ICF (International Classification of Functioning, Disability and Health) component as predictive variables, using the latest CPUP registration prior to accelerometer data collection.

    Time frame: Response variable is measured between 0 and 39 months post registry data (predictive variables).

Secondary outcomes

  1. Model 1b: Prediction of habitual physical activity using data from questionnaire variables

    Habitual physical activity will be assessed objectively using accelerometer counts. Multiple linear regression analysis between accelerometer counts (response variable) and all questionnaire variables within each ICF component (predictive variables), using the questionnaire data.

    Time frame: Response variable is measured between 1 and 15 months post registry data (predictive variables).

  2. Model 2a: Prediction of habitual physical activity using data from the CPUP registry (penalized regression)

    Penalized regression (lasso) with accelerometer counts as the response variable and covariates as chosen by lasso to obtain an optimal fit from model 1a as predictive variables to determine which variables to retain in the model.

    Time frame: Response variable is measured between 0 and 39 months post registry data (predictive variables).

  3. Model 2b: Prediction of habitual physical activity using data from questionnaire variables (penalized regression)

    Penalized regression (lasso) with accelerometer counts as the response variable and covariates as chosen by lasso to obtain an optimal fit from model 1b as predictive variables to determine which variables to retain in the model.

    Time frame: Accelerometer data is collected 1-15 months post collection of questionnaire data.

07

Study locations

1 site
  • University of Southern Denmark
    Odense C, 5000, Denmark
08

References and documents

Publications

  • Fonvig CE, Troelsen J, Dunkhase-Heinl U, Lauritsen JM, Holsgaard-Larsen A. Predictors of physical activity levels in children and adolescents with cerebral palsy: clinical cohort study protocol. BMJ Open. 2021 Sep 21;11(9):e047522. doi: 10.1136/bmjopen-2020-047522. PubMed 34548350 ↗

Study documents

  • Protocol and statistical analysis plan · Jun 2, 2022

Documents are hosted by the registry — open the source record to download them.

Individual participant data

Plan to share: No — Due to ethical and legal considerations, our data cannot be shared publicly. This is due to the restrictions from the Regional and the National Committee on Health Research Ethics and the General Data Protection Regulation (EU) 2016/679, since the data contains person-specific information on sex, birth date, and cerebral palsy classification among other. Data are available for researchers who meet the criteria for access to confidential data. Access may be acquired through contact to the research group.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jun 14, 2022, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT04614207
Lead sponsor
University of Southern Denmark
Collaborators
Elsass Foundation, Region of Southern Denmark, AJ Andersen og Hustrus Fond, The Hede Nielsen Family Foundation, Dagmar Marshalls Fond, Fonden til Lægevidenskabens Fremme
Responsible party
Sponsor
First posted
Nov 3, 2020
Start date
Nov 3, 2020
Primary completion
Jan 31, 2022
Completion
Jan 31, 2022
Last update
Jun 14, 2022

Study contacts

Anders Holsgaard-Larsen, Assoc. Prof
study director · Department of Clinical Research, University of Southern Denmark.
Christina E Fonvig, MSc
principal investigator · Department of Clinical Research, University of Southern Denmark.

Oversight

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

Not currently enrolling

This study is completed, as verified in Jun 2022. You cannot join it, but the record below documents what was studied.

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