A student conducted a 4-week investigation comparing the effects of running and cycling on resting heart rate in Year 11 students. The results showed that both activities reduced resting heart rate, but running showed a greater decrease (6 beats per minute) compared to cycling (3 beats per minute).
Which of the following represents the most appropriate further research question based on these findings?
- Does swimming also reduce resting heart rate in Year 11 students?
- Would a longer 8-week training program show even greater differences between running and cycling?
- What factors might explain why running produced a greater reduction in resting heart rate than cycling?
- Do Year 12 students show similar heart rate responses to running and cycling?