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Examining children’s short-term responses to increases and decreases in physical activity

Examining children’s short-term activity compensatory responses to increases and decreases in physical activity

Status
Completed
Phases
Unknown
Study type
Interventional
Source
ANZCTR
Registry ID
ACTRN12618001235291
Acronym
Reactivity to Activity (REACT) Study
Enrollment
368
Registered
2018-07-23
Start date
2017-09-13
Completion date
2018-10-26
Last updated
2019-01-28

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

None listed

Brief summary

The aim of this study is to investigate children's short-term responses to increases and decreases in physical activity above and below usual levels. Children will participate in three, one-off experimental sessions at school. These are: a) Indoor seated play: Children will participate in indoor play activities usually done during wet weather recess and lunchtime; b) Standing lesson: Children will participate in a standing lesson during class time; and c) Sports class: Children will participate in active sport and play activities during class time. The REACT Study will explore whether children ‘compensate’ for being more or less active than they would usually be by being more or less active later on in the day or the next day.

Interventions

In this cross-over controlled experiment, children will complete three, one-off conditions in the school setting, each separated by at least a 7 day washout period. The three conditions are: a) Additional moderate-to-vigorous physical activity: A single 90 minute sports class focusing on skills, fitness, and competitive games during class time. Activities undertaken during the sports class include soccer and basketball games, playground games, and dribbling, throwing and catching activities. b

In this cross-over controlled experiment, children will complete three, one-off conditions in the school setting, each separated by at least a 7 day washout period. The three conditions are: a) Additional moderate-to-vigorous physical activity: A single 90 minute sports class focusing on skills, fitness, and competitive games during class time. Activities undertaken during the sports class include soccer and basketball games, playground games, and dribbling, throwing and catching activities. b) Additional light physical activity: A single 90 minute standing lesson delivered during class time. Easels and clipboards are provided in the classroom to facilitate the completion of class work whilst standing. c) Restriction of light and moderate-to-vigorous activity: Children engage in seated indoor play activities during recess and lunchtime on one day. Indoor play activities include card and board games, reading, and drawing. The experimental conditions will be delivered in a random order. The conditions are delivered on Tuesdays or Wednesdays in school to enable the monitoring of activity levels on the day of the session and the following day. All conditions are delivered and supervised by research staff, which includes qualified teachers.

Sponsors

Deakin University
Lead SponsorUniversity

Study design

Allocation
Randomised controlled trial
Intervention model
Crossover
Primary purpose
Prevention
Masking
Open (masking not used)

Eligibility

Sex/Gender
All
Age
7 Years to 12 Years
Healthy volunteers
Yes

Inclusion criteria

Children in Years 4, 5 and 6 will be invited to participate.

Exclusion criteria

There are no specific exclusion criteria for children participating in the study.

Outcome results

None listed

Source: ANZCTR · Data processed: Feb 4, 2026