However , there are two obvious limitations to relying on physical practise : ( i ) the onset of muscle fatigue and ( ii ) the risk of overuse injuries .
Traditionally , much of this deliberate practise has been completed in the form of physical practise .
There are two obvious limitations to relying on physical practise : ( i ) the onset of muscle fatigue and ( ii ) the risk of overuse injuries .
Traditionally , much of this deliberate practise has been completed in the form of physical practise .