TT-Flex is a full body strengthening system used world-wide to target the exact movement you need. It primary strengthens the core muscles, but also develops wrist speed, forearm snap, and get strength. Check out this first time user doing a TT-Flex Demo!
As I have told you many times, this is your daily minimum.
3 minute dynamic warmup routine prior to practice and a 10 minute fitness routine after practice. If you get these done, you can feel free to workout more. Each day, you can choose to do the core workout or the leg workout.
I would encourage you to pull out your phone or turn on your tablet and follow along to make sure that your workout stays timed and structured.