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 |