I'm currently on level 4 of simplefit and I have a pullup technique question.
I'm using a pullup bar mounted in my door frame, and I'm finding that when I have to do many pullups in a row (like 20 to pass level 4) that my body starts swinging to and fro as I raise and lower myself. I need to periodically touch my toes to the floor to rebalance myself from swinging, and then continue to do the pull ups...
Is something wrong with my tecnique? Is this normal?
When I do lower reps, like 4 or so I can raise and lower myself with swinging... but when I'm trying to do 10 or 20 for time and I'm pushing myself I start to swing.
Thanks for any advice,