Exercise Testing/Treadmill Exercise Challenge Spirometry
Which children require testing?
Children who have symptoms during and after exercise such as cough, difficulty in breathing or excessive tiredness after exercise and have no obvious reason for it, needs an exercise testing or exercise challenge spirometry.
What are the diagnosis which can be picked up with a Exercise testing?
- Exercise induced asthma, exercise induced vocal cord dysfunction, poor physical fittness are the usual diagnosis that are picked up.
How is a Treadmill exercise challenge spirometry done?
- The child performs a spirometry prior to the exercise. The child then is made to exercise on a treadmill with gradually increasing speed of the treadmill. This is done on a specific protocol. We would usually connect a monitor to evaluate the heart rates and ECG.
- After the target heart rate is achieved the child is made to exercise for 5 minutes more.
- The child then performs a spirometry at the end of exercise and thereafter at 5 min, 10 min, 20 min, 30 min and 45 minutes post exercise.
- The various spirometry tracing are evaluated in detail.
Is it safe?
- Yes it is safe. No adverse events are noted. If the child feels any problems then the testing is stopped.
- It is painless. No injections are used.