|1||Very slightly breathless|
|3||Hot and moderately breathless|
|5||Hot and somewhat severely breathless|
|7||Hot and severely breathless|
|10||Couldn’t be more hot and breathless|
You should aim to work at a moderate level. When working at a moderate level you will be warm and short of breath to the point you would not be able to sing but still able to complete a short sentence. This equates to somewhere between 3 and 5 on the scale.