Pan African Clinical Trials Registry
South African Medical Research Council, South African Cochrane Centre
PO Box 19070, Tygerberg, 7505, South Africa
Telephone: +27 21 938 0835 or +27 21 938 0967
Email: pactradmin@mrc.ac.za Website: pactr.samrc.ac.za
Trial no.: PACTR202607816196066 Date of Registration: 29/07/2026
Trial Status: Retrospective registration - This trial was registered after enrolment of the first participant
TRIAL DESCRIPTION
Public title Cognitive-motor training effects in children
Official scientific title Dual-task training effect on cognitive-motor interference in young children
Brief summary describing the background and objectives of the trial Postural control under dual-task conditions has been shown to be more demanding for preschool-aged children, with balance performance deteriorating compared to the single-task condition. This finding highlights the challenges children face when performing motor tasks under cognitive load, which may negatively affect everyday functioning and learning. It may also suggest potential risks during more dynamic, real-world activities (e.g., running or playground activities) that involve high attentional demands. Given the fundamental role of handling dual-task conditions in everyday functioning, investigating dual-task training during the preschool years may yield important insights. The present study aimed to investigate the effects of cognitive-motor dual-task training, compared to motor training alone, on cognitive-motor interference in preschool-aged children.
Type of trial RCT
Acronym (If the trial has an acronym then please provide)
Disease(s) or condition(s) being studied Paediatrics
Sub-Disease(s) or condition(s) being studied
Purpose of the trial Physical activity and nutrition
Anticipated trial start date 25/09/2025
Actual trial start date 25/09/2025
Anticipated date of last follow up 27/11/2025
Actual Last follow-up date 27/11/2025
Anticipated target sample size (number of participants) 36
Actual target sample size (number of participants) 36
Recruitment status Completed
Publication URL
Secondary Ids Issuing authority/Trial register
STUDY DESIGN
Intervention assignment Allocation to intervention If randomised, describe how the allocation sequence was generated Describe how the allocation sequence/code was concealed from the person allocating the participants to the intervention arms Masking If masking / blinding was used
Parallel: different groups receive different interventions at same time during study Randomised Simple randomization using a randomization table created by a computer software program Allocation was determined by the holder of the sequence who is situated off site Masking/blinding used Outcome Assessors
INTERVENTIONS
Intervention type Intervention name Dose Duration Intervention description Group size Nature of control
Control Group Control None eight weeks without physical or cognitive training 12 Active-Treatment of Control Group
Experimental Group Single task training 3 times/week eight weeks Each session includes balance exercises and a trampoline station. Training duration starts at 30 minutes per session and increases to 40 minutes beginning in the third week. 12
Experimental Group Dual task training 3 times/week eight weeks Each session includes balance exercises and a trampoline station combined with simultaneous cognitive tasks. The training duration initially starts at 30 minutes per session and increases to 40 minutes beginning in the third week. The cognitive tasks are: Identifying objects Identifying target colors in visual arrays Identifying the synonym and antonym Produce names Counting Responding to questions Selective span task Free recall task Memorize and repeat sentences Description of daily activities and routines Mathematical questions The therapist claps with a single or double hit in random order. The number of double claps increased for progression. Say “one” when I clap once and say nothing when I clap twice Go/No-Go test 12
ELIGIBILITY CRITERIA
List inclusion criteria List exclusion criteria Age Category Minimum age Maximum age Gender
Participants should be between 5 and 6 years old, have typical development, and be from the same socio-economic status. Have a recent musculoskeletal injuries; orthopedic, visual, vestibular, neurological, or developmental disorders; engagement in any regular sports training or structured physical activity programs outside school; and any pathological conditions. Child: 6 Year-12 Year,Preschool Child: 2 Year-5 Year 5 Year(s) 6 Year(s) Both
ETHICS APPROVAL
Has the study received appropriate ethics committee approval Date the study will be submitted for approval Date of approval Name of the ethics committee
Yes 16/09/2025 Medical Ethics Committee of the Faculty of Medicine of Sousse
Ethics Committee Address
Street address City Postal code Country
Rue Mohamed Karoui Sousse 4002 Tunisia
OUTCOMES
Type of outcome Outcome Timepoint(s) at which outcome measured
Primary Outcome Static balance 48 hours before the beginning of the intervention and 72 hours after the end of the intervention
Primary Outcome Verbal fluency 48 hours before the beginning of the intervention and 72 hours after the end of the intervention
Secondary Outcome Reaction time 48 hours before the beginning of the intervention and 72 hours after the end of the intervention
RECRUITMENT CENTRES
Name of recruitment centre Street address City Postal code Country
Our Kids kindergarten Airport street Sfax 3000 Tunisia
Al Wafa kindergarten Airport street Sfax 3000 Tunisia
FUNDING SOURCES
Name of source Street address City Postal code Country
Princess Nourah bint Abdulrahman University Researchers Supporting Project under Grant PNURSP2026R948 Eastern Ring Road, Exit 9, Al-Imam Bin Abdul Aziz Road, Riyadh, Saudi Arabia. Riyadh 11671 Saudi Arabia
SPONSORS
Sponsor level Name Street address City Postal code Country Nature of sponsor
Primary Sponsor Research laboratory EM2S Airport street Sfax 3000 Tunisia Research laboratory
COLLABORATORS
Name Street address City Postal code Country
CONTACT PEOPLE
Role Name Email Phone Street address
Principal Investigator Rabeb Laatar laater.rabeb86@gmail.com +21620995195 Gremda street
City Postal code Country Position/Affiliation
Sfax 3000 Tunisia research laboratory EM2S
Role Name Email Phone Street address
Public Enquiries Rabeb Laatar laater.rabeb86@gmail.com +21620995195 Gremda street
City Postal code Country Position/Affiliation
Sfax 3000 Tunisia Research laboratory EM2S
Role Name Email Phone Street address
Scientific Enquiries Rabeb Laatar laater.rabeb86@gmail.com +21620995195 Gremda Street
City Postal code Country Position/Affiliation
Sfax 3000 Tunisia Research Laboratory EM2S
REPORTING
Share IPD Description Additional Document Types Sharing Time Frame Key Access Criteria
Yes IPD that underlie the results reported in this article, after deidentification (text, tables, figures, and appendices) Informed Consent Form 12 months following article's publication researchers who provide a methodologically sound proposal
URL Results Available Results Summary Result Posting Date First Journal Publication Date
No
Result Upload 1: Result Upload 2: Result Upload 3: Result Upload 4: Result Upload 5:
Result URL Hyperlinks Link To Protocol
Result URL Hyperlinks
Changes to trial information
Section Name Field Name Date Reason Old Value Updated Value
Trial Information Target no of participants 02/07/2026 A total of 42 individuals were initially screened for participation. Following eligibility assessment, 36 participants met the inclusion criteria and were randomized and allocated to the three study groups. Of these, 31 participants completed the intervention and final assessment sessions and were included in the final analysis 42 36
Section Name Field Name Date Reason Old Value Updated Value
Trial Information Final no of participants 23/07/2026 Corrected for consistency as suggested by the Trial Reviewer. The intervention sample comprised 36 randomized participants; the previous value (31) represented the number of participants who completed the final assessments. 31 36