The overall aim of the study is to investigate the effects of an acute bout of physical activity on cognitive performance and long-term memory in elementary school children. Elaborating, the study seeks to investigate the effect of the intensity of the physical activity on cognitive performance and long-term memory in preadolescent children.
Based on a power analysis a total population of 100 children (four school classes) will be invited to participate in a 10-day protocol. The children will be randomly allocated, within their cluster (classes) and stratified for gender and soccer level, to one of 3 intervention groups. The groups consist of: A small-sides soccer game group (SSG), a walking soccer group (WSG) and a rest group watching soccer on TV (RES). At day 1 the children will complete a screening of their physical characteristics (height, weight, fat percentages, lean muscle mass and fitness status). On day 2 the children will complete a screening and a familiarization to the cognitive tasks used (cognitive performance and long-term memory) and the brain activity measuring devices (transportable EEG systems). On day 3 the children will complete the interventions, which first consist a long-term memory task, where the children will be asked to remember forty different pictures. Immediately after exposure to the forty pictures, the children will participate in 2 x 10 minutes of their respective interventions with 5 minutes break in between. During the break, the children will complete a short questionnaire to address their flow. Furthermore, during the intervention they will be equipped with heart rate monitors to quantify the physical demands of the intervention. Immediately after completing the 2 x 10 minutes interventions the children will be equipped with a transportable EEG system, and undergo a cognitive test (the Flanker task) to address their cognitive performance. The EEG recordings are used to measure the P3 amplitude and latency, biomarkers for cognitive performance. While equipping the children with the EEG system, the children will complete questionnaires about their participation. At day 10 the children will try to remember as many pictures of the forty pictures as possible to address the effect of the interventions on their long-term memory.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
BASIC_SCIENCE
Masking
NONE
Enrollment
81
The small-sided soccer game consists of a single bout (two times ten minutes) of small-sided soccer game (3v3) interspersed with a five minutes break.
The walking soccer game consists of a single bout (two times ten minutes) of small-sided walking soccer game (3v3) interspersed with a five minutes break.
The rest group watching soccer consists of watching a soccer game on a laptop (two times ten minutes) interspersed with a five minutes break.
University of Southern Denmark
Odense, Denmark
Event-related brain potentials (P300)
Electroencephalographic measures (mV) of the neuroelectric system that occur in response to, or in or in preparation for, a discrete event.
Time frame: 1 day
Cognitive Response Speed Performance
Measures of response speed (ms) during the computer-based Flanker task
Time frame: 1 day
Cognitive Response Accuracy Performance
Measures of response accuracy (%) during the computer-based Flanker task
Time frame: 1 day
Long-term Memory Accuracy Performance
Measures of response accuracy (%) during a tablet-based visual memory task
Time frame: 7 days
Height
Measures of height (cm) with a Tanita Leicester portable altimeter
Time frame: 1 day
Weight
Measures weight (kg) with an InBody 230 multifrequency body composition analyser
Time frame: 1 day
Fat Percentage
Measures fat percentage (%) with an InBody 230 multifrequency body composition
Time frame: 1 day
Lean Body Mass
Measures of lean body mass (kg) with an InBody 230 multifrequency body composition
Time frame: 1 day
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Fitness Status
Measures of distance covered during an maximal exercise test
Time frame: 1 day
Maximal Heart Rate
Measures of maximal heart rate with heart rate monitors during an maximal exercise test
Time frame: 1 day
Flow
Measures of flow with a danish translation og the flow questionnaire (Rheinberg et al., 2003) during the intervention
Time frame: 1 day
Motivation
Measures of motivation with the Intrinsic Motivation Inventory (IMI) questionnaire (McAuley et al., 1987) after the intervention
Time frame: 1 day
Enjoyment
Measures of self-perceived enjoyment with the Physical Activity Enjoyment Scale (PACES) (Kendzierski et al., 1991) questionnaire after the intervention
Time frame: 1 day
Intervention intensity
Measures of heart rate with heart rate monitors during the intervention
Time frame: 1 day