NCT05854355

Brief Summary

The Children Sit Less, Move More (C-SLAMM) study aims to test the feasibility and potential effect of a multi-component school and home-based pilot cluster randomized control trial on reducing sedentary behavior and increasing physical activity in children. This pilot intervention will be an 8-week two-armed cluster RCT. Individuals (children aged 7-9 years) will be the unit of analysis and schools (cluster) randomly assigned to one of two arms: (1) Physical activity and sedentary behavior (intervention arm), or (2) current practice (control arm). The design conduct and reporting of the intervention with adhere to the Consolidation Standards of Reporting Trials (CONSORT) guidelines and is guided by the Standard Protocol Items for Randomized Trials (SPIRIT) Statement.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
162

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Sep 2021

Shorter than P25 for not_applicable

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

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

September 1, 2021

Completed
7 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 13, 2022

Completed
2 months until next milestone

Study Completion

Last participant's last visit for all outcomes

June 12, 2022

Completed
10 months until next milestone

First Submitted

Initial submission to the registry

March 30, 2023

Completed
1 month until next milestone

First Posted

Study publicly available on registry

May 11, 2023

Completed
Last Updated

May 11, 2023

Status Verified

May 1, 2023

Enrollment Period

7 months

First QC Date

March 30, 2023

Last Update Submit

May 2, 2023

Conditions

Outcome Measures

Primary Outcomes (1)

  • Sitting time (mins)

    Change in time spent sitting using activPAL inclinometer device

    7 days at baseline and at follow-up (8 weeks)

Secondary Outcomes (7)

  • Standing time (mins)

    7 days at baseline and at follow-up (8 weeks)

  • Stepping time (mins)

    7 days at baseline and at follow-up (8 weeks)

  • Steps

    7 days at baseline and at follow-up (8 weeks)

  • Sit to stand transitions

    7 days at baseline and at follow-up (8 weeks)

  • Height (m)

    7 days at baseline and at follow-up (8 weeks)

  • +2 more secondary outcomes

Study Arms (2)

Intervention

EXPERIMENTAL

This group received the multi-component school and home-based intervention (physical activity programme (aimed to increase children's physical activity and decrease sedentary behaviour)

Other: C-SLAMM Study

Control

NO INTERVENTION

The primary school children in the control group did not receive the intervention. The control arm continued with their usual practice and lesson delivery, no environmental changes were made to their classrooms.

Interventions

The intervention arm includes using innovative behavioural, pedagogical, and environmental strategies within the classroom, school, and home settings to get children moving more and sitting less. The strategies were based on strategies used in Transform-Us! involved incorporating movement into everyday class lessons - the delivery of the lesson changes, not the content. Resources included health lessons, active lessons, active breaks, active homework to do with parents, active environments, and newsletters for parents.

Intervention

Eligibility Criteria

Age7 Years - 9 Years
Sexall
Healthy VolunteersYes
Age GroupsChild (0-17)

You may qualify if:

  • Primary school pupil
  • Year 4 (Key Stage 1) or Year 5 (Key Stage 2)
  • years
  • Living in Northern Ireland

You may not qualify if:

  • Cannot speak English
  • Severe psychological or neurological condition

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Ulster University

Newtownabbey, Co. Antrim, BT370QB, United Kingdom

Location

Related Publications (1)

  • Nally S, Carlin A, Gallagher AM, Wilson JJ, Lahart IM, Salmon J, Murphy MH. The Children - Sit Less, Move More (C-SLAMM) pilot intervention: Feasibility and acceptability of a multi-component school and home-based intervention to promote physical activity. PLoS One. 2025 Nov 19;20(11):e0335933. doi: 10.1371/journal.pone.0335933. eCollection 2025.

MeSH Terms

Conditions

Sedentary BehaviorHealth BehaviorChild BehaviorMotor Activity

Condition Hierarchy (Ancestors)

Behavior

Study Officials

  • Marie Murphy, PhD

    University of Ulster

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Purpose
PREVENTION
Intervention Model
PARALLEL
Model Details: Four schools allocated to receive the intervention; four schools allocated to the control group
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

March 30, 2023

First Posted

May 11, 2023

Study Start

September 1, 2021

Primary Completion

April 13, 2022

Study Completion

June 12, 2022

Last Updated

May 11, 2023

Record last verified: 2023-05

Data Sharing

IPD Sharing
Will not share

Locations