For chest & shoulder press, a typical way to get load (or set up initial position) is to kick dumbbells up with feet, with advantage of momentum ( & use of biceps) bring the dumbbells to initial set up. Example reference: https://www.youtube.com/watch?v=qEwKCR5JCog&t=50s
I can not kick up dumbbell above 45lb but I can press 160 lbs on chest press machines (80 lb x 2), 120lb with barbell. If I have a gym buddy to help me I am able to do 120lb (60 x 2) X 12 reps X 3 dumbbell press with no challenge. Hence I have to compromise on dumbbell press.
1st IMO weak Biceps are one reason for it (I have ignored them for quite long) and 2nd and more important, my legs can't produce enough momentum for heavy dumbbells.
I want to understand what muscle groups are helping in this 'kick' motion and how I can strengthen them?
Other than that if you know any other drills to help with it, please advise. Thanks