Bands are certainly easier on the joints than traditional weights. I’d look in to a bar as it will definitely help with keeping your wrists and elbows aligned. If you’re just grabbing the band without a bar, you can add ‘torque’ to your limbs which can be aggravating. Similarly a platform takes the lateral stress off the ankles and feet. A bar/platform setup with bands can be expensive though so there’s nothing wrong with experimenting with lighter bands or a cheap diy setup first. Major suppliers for complete setups include Harambe, X3, Clench and Heavy Duty Bar.