Skip to main content

Table 3 Summary of Study Measures

From: Multidisciplinary lifestyle intervention in children and adolescents - results of the project GRIT (Growth, Resilience, Insights, Thrive) pilot study

Study Measure

Timepoints

Explanation

Related intervention component/s

Attendance

All sessions from baseline to 12 weeks

Measure of feasibility

All

Retention

1st exercise session to last attended study session

Measure of feasibility

Total days involved and number of participants completing the study versus withdrawal

Program involvement

Adverse events

Reported at any exercise, dietary or psychology session

Measure of feasibility

Minor or major

Assessed whether unrelated, potentially related or related to the study

All

Satisfaction

12 weeks or at withdrawal

Measure of feasibility

Collected via written surveys with Likert scaled questions

All

Heart rate during exercise sessions

Continuously during HIIT group exercise sessions and individual make-up sessions

Guide for participants during exercise sessions to achieve high intensity and recovery heart rate targets

Changes in HR across the intervention are a fitness indicator

Exercise sessions

Anthropometry

Baseline

Participant characteristics for weight, height and waist circumference, with calculation of BMI, BMI-for-age percentiles and Z-score

Not a target of any interventions

Maximal graded cardiorespiratory testing

Baseline and 12 weeks

VO2peak: Peak oxygen consumption during testing as a measure of maximal exercise capacity. Testing time to reach VO2peak measures time to exertion.

HRmax: Maximum heart rate measured during exercise testing. A reduction in HRmax over time can indicate improvements in cardiac output.

MFO: maximum fat oxidation measure during testing, positively associated with respiratory capacity and training status [36].

Exercise sessions

Australian Child and Adolescent Eating Survey FFQ (Nutrient intake and diet quality)

Baseline and 12 weeks

Total and food-group based Australian Child and Adolescent Recommended Food Scores, measures of diet quality reflecting adherence to the Australian Dietary Guidelines.

Estimated daily intake of food groups as a percentage contribution to total energy intake.

Estimated macro- and micronutrient intake

Dietary education sessions and cooking demonstrations

Piers Harris-2

Self-concept scale

Baseline and 12 weeks

Global measure of self-esteem. Measures total and domains of behavioural adjustment, intellectual and school status, physical appearance and attributes, popularity, happiness and satisfaction, and freedom from anxiety

All

  1. HIIT High Intensity Interval Training, FFQ food frequency questionnaire