I noticed this while doing long cardio sessions, my left arm feels less frictional while swinging compared to right side.
I noticed this while doing long cardio sessions, my left arm feels less frictional while swinging compared to right side.
I did 10% incline 3 speed for an hour on treadmill and left side had more sweat drops
i'd hesitate to call it cardio, but you can always switch to your right arm if you get tired