Condition category
Nervous System Diseases
Date applied
Date assigned
Last edited
Retrospectively registered
Overall trial status
Recruitment status
No longer recruiting
Publication status

Plain English Summary

Background and study aims
Cerebral Palsy (CP) is a term for a number of conditions that affect movement and co-ordination. It occurs when there is a problem in the parts of the brain responsible for controlling muscles. This can be due to abnormal development of the brain or damage caused before, during or after birth. CP leads to a range of symptoms, including muscle stiffness or weakness, random and uncontrolled body movements and balance and coordination problems. It has been shown that children with CP are less physically active than those who have developed normally. Climbing requires a range of different movements and can act as both a functional and cognitive (thought-process) challenge. Until now very few research projects have investigated the feasibility of climbing as a potential activity for increasing levels of physical activity in children with CP. The aim of this study is to test the feasibility of an intensive three weeks indoor-climbing training program in children with CP and typically developing (TD) peers.

Who can participate?
Children aged 10-15 years with and without CP.

What does the study involve?
All children take part in nine indoor-climbing training sessions over a period of three weeks, with three 2.5 hour-long sessions taking place each week. During these sessions, activity levels are monitored using activity measurement devices worn by the children. Two weeks before starting the programme, immediately before starting the programme and after the programme is complete, participants complete a range of tests and questionnaires to assess their physical and mental function and wellbeing. In addition, climbing abilities are assessed through observation of several sessions.

What are the possible benefits and risks of participating?
Participants may benefit form improved climbing skills, muscle strength, balance, as well as mental and social skills. There are no notable risks involved with participating.

Where is the study run from?
1. Elsass Institute (Denmark)
2. University of Copenhagen, Institute of Sports and Nutrition (Denmark)

When is the study starting and how long is it expected to run for?
January 2014 to September 2016

Who is funding the study?
Ludvig and Sara Elsass Foundation (Denmark)

Who is the main contact?
Dr Jakob Lorentzen

Trial website

Contact information



Primary contact

Dr Jakob Lorentzen


Contact details

Holmegaardsvej 28
+45 31 52 11 31

Additional identifiers

EudraCT number number

Protocol/serial number


Study information

Scientific title

To be active through indoor-climbing: An exploratory feasibility study in a group of children with cerebral palsy and typically developing children


Study hypothesis

The climbing gym, together with skilled instructors, in combination with the notion of climbing as an endogenously motivated activity in 3 weeks of intensive climbing training would:
1. Facilitate a high level of activity among children with CP
2. Improve hand coordination and increased pinch grip strength
3. Improve cognitive skills related to spatial working memory
4. Improve the participant’s own evaluation of their physical abilities as well as skills in general

Ethics approval

Ethics committee of Copenhagen, Denmark (Videnskabsetisk komite, Region hovedstaden), 01/08/2014, ref: H-B-2009-017

Study design

Unblinded non randomised feasibility study

Primary study design


Secondary study design

Non randomised study

Trial setting


Trial type


Patient information sheet

Not available in web format, please use the contact details below to request a patient information sheet


Cerebral Palsy


All participants take part in a three week programme of intensive climbing training, three times a week for approximately 2.5 hours each time. Nine days of climbing are planned within a period of 17 days, on Monday, Tuesday and Friday in the first two weeks, and Monday, Tuesday and Wednesday in the third week

All climbing is performed in the afternoon after school hours. Each climbing day consists of approximately 2.5 hours of physical activity, split into approximately 30 minutes of warm up exercises specifically focused on climbing. Subsequently the participants were split into two half with an approximately equal number of children with CP and TD participants in each group, where one group started with bouldering exercises. The other half of the participants were engaged in wall climbing with a top rope as safety. In order to avoid long waiting times during the top rope session, 3-4 instructors were allocated for the top rope practice, and one instructor was responsible for the bouldering session. After approximately 1 h, the two groups swapped activity. Each climbing day ended with a wrap up where the participants told what they had learned during the day. The intervention was planned as a sports activity, where the focus for the participants was to improve their climbing performance and experience that they learned new skills. Without focusing on specific needs of the individual participant with disabilities, we hoped that the focus of climbing performance also would give rise to therapeutical benefits, but intentionally without focusing on these specifically.

All participants are assessed two weeks prior to onset of the intervention; just before onset of the intervention; and the following week immediately after the last day of the thee week long intervention period. The testing consists of a range of tests including physiological, psychological and cognitive tests. The amount of time spent being physically active during the 9 indoor-climbing training sessions, and climbing abilities is also measured.

Intervention type



Drug names

Primary outcome measure

Physical activity is measured using activity mesaurement devices (SenseWear) worn during each climbing session.

Secondary outcome measures

1. Climbing performance is measured using video-filming of the participant while climbing one specific route on day 3 and day 8 of climbing days
2. Functionality is measured using Sit-to-stand test and Romberg 30 s balance test at both baseline tests and after the intervention period
3. Hand strength is measured using an analog hand-dynamometer at both baseline tests and after the intervention period
4. Pinch strength is measured using EMG and force recordings during maximal pinch at both baseline tests and after the intervention period
5. Coherence is measured using EMG from the finger muscles during at precision pinch grip at both baseline tests and after the intervention period
6. Ankle stiffness, range on motion and strength is measured using hand-held dynamometer at both baseline tests and after the intervention perio
7. Cognitive abilities are measured using CogState which is a set of computerized tests that can be assembled from a large battery of various cognitive tests at both baseline tests and after the intervention period
8. Physical abilities are measured using a series of strength and precision test for the fingers, hands and ankles at both baseline tests and after the intervention period
9. Skills and abilities are measured using the recorded speed of the route climbed on day 3 and 8 of the climbing days
10. Mental well-being is measured using the questionnaire ”Saadan er jeg” at the first baseline test and after the intervention period
11. Relationship to parents is measured using the questionnaire ”Saadan er jeg” at the first baseline test and after the intervention period
12. Relationship to others is measured using the questionnaire ”Saadan er jeg” at the first baseline test and after the intervention period

Overall trial start date


Overall trial end date


Reason abandoned (if study stopped)


Participant inclusion criteria

1. Diagnosis of cerebral palsy
2. Aged 10-15

Age-matched controls:
1. Systemically healthy
2. Aged 10-15

Participant type


Age group




Target number of participants

Seventeen children from the age of 11 to 13 years with (N=11) and without (N=6) cerebral palsy are recruited to this non randomized, non-blinded feasibility and intervention study.

Participant exclusion criteria

Severe functional dysfunction that made climbing impossible.

Recruitment start date


Recruitment end date



Countries of recruitment


Trial participating centre

Elsass Institute
Holmegaardsvej 28

Trial participating centre

University of Copenhagen, Institute of Sports and Nutrition
Panum Institute Nørre Alle

Sponsor information


Institute of Sports and Nutrition

Sponsor details

University of Copenhagen
Panum Instituttet 33,3
Nørre Alle
+45 28 75 73 1

Sponsor type




Funder type


Funder name

Ludvig and Sara Elsass Foundation

Alternative name(s)

Funding Body Type

Funding Body Subtype


Results and Publications

Publication and dissemination plan

Publication of two research papers is planned. One paper that describes the feasibility of the intervention for for children with cerebral palsy and another paper that describes the physiologically and psychologically changes after training.

IPD Sharing plan:
Anonymised data from the study will be made available upon request from

Intention to publish date


Participant level data

Available on request

Basic results (scientific)

Publication list

2017 results in

Publication citations

Additional files

Editorial Notes

13/11/2017: Publication reference added.