If you are playing octaves on our left hand, how do you do warm up or which muscle to strengthen? After playing a few bars, my forearm muscle feel tired and a faint tingling sensation around my wrist. Is this abnormal or am I subjecting myself to injuries like Carpal Tunnel Syndrome ?
I need to clarify:I was playing some broken chords eg. F A A I used my fifth finger to hit the F, then third finger to hit the A, then I use my thumb to stretch to reach an octave higher for the A. That was what I was referring to . I was twitching my wrist as I tried to reach the octave higher A. Do you aim to 'lock' your wrist or to twist it slightly to reach the A ?