Functional Isometric Training
Functional isometric training is often used to overcome the sticking point at a specific joint angle to increase maximal strength.
Rest Pause, Inter-repetition Rest Technique
There are differing interpretations and many different ways to apply the rest pause technique. Either way, it does appear to be worth considering.
Unstable Surface Training
Unstable surface training is an exercise that involves unstable surfaces such as; a balance disc, wobble board, Swiss ball, and slings or rings.
Balance, How To Train To Improve Your Stability & Core Strength
Specificity is an important principle to consider when deciding how to train to improve your balance, stability, and core strength.
Other Methods
There are other methods that come with predictably higher risk of injury and therefore haven’t been included here.