A group of students has observed that their classmates appear to have different ventilation responses during aerobic training. Create a research question to investigate this observation and evaluate why this question would be suitable for scientific investigation of physiological responses to aerobic training. (8 marks)
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Sample Answer
- An appropriate research question would be: “How do ventilation rates differ between trained and untrained individuals during a 20-minute aerobic exercise session at 70% of maximum heart rate?”
- This question identifies a specific physiological response (ventilation rate) that can be objectively measured using breathing frequency or spirometry.
- The question establishes a clear comparative framework between defined groups (trained versus untrained) allowing for analysis of differences.
- Exercise parameters are precisely defined (20 minutes, 70% MHR) ensuring standardisation across participants.
- The question is testable using equipment likely available in a school setting (heart rate monitors and manual counting of breathing rate).
- The investigation would generate quantitative data suitable for statistical analysis to determine significance of any observed differences.
- Results could contribute to understanding of respiratory adaptations to aerobic training and potentially inform training recommendations.
- The question avoids unnecessary complexity while still allowing for meaningful investigation of an observed physiological phenomenon.
Show Worked Solution
Sample Answer
- An appropriate research question would be: “How do ventilation rates differ between trained and untrained individuals during a 20-minute aerobic exercise session at 70% of maximum heart rate?”
- This question identifies a specific physiological response (ventilation rate) that can be objectively measured using breathing frequency or spirometry.
- The question establishes a clear comparative framework between defined groups (trained versus untrained) allowing for analysis of differences.
- Exercise parameters are precisely defined (20 minutes, 70% MHR) ensuring standardisation across participants.
- The question is testable using equipment likely available in a school setting (heart rate monitors and manual counting of breathing rate).
- The investigation would generate quantitative data suitable for statistical analysis to determine significance of any observed differences.
- Results could contribute to understanding of respiratory adaptations to aerobic training and potentially inform training recommendations.
- The question avoids unnecessary complexity while still allowing for meaningful investigation of an observed physiological phenomenon.