Diy gym landmine unit t bar row. Hit the hardware store buy a short pipe with inside diameter of 2 inches ( for your olympic bar) and pivoting caster wheel that is large enough to accept the pipe. Remove wheel, drill the pipe, secure with same bolt. Mount to your squat cage. All for under forty bucks.
Grip strength is a huge part of Judo. Whether you are trying to pass someone’s guard, obtain back control, or keep them from doing so to you, a deciding factor could very well be your ability to hold onto