static hamstring holds
What a static hold does for your body. To ensure maximum range of motion, and to avoid compensating or targeting muscles that are not meant for the exercise, you must warm up your joints before performing any static hold exercise. Light jumps are required to warm the joints for most static hold exercises. These jumps should not be too fast, but they should be light. Proper alignment is essential for proper performance.
Because you must hold your body still in order to lift weight, static holds are particularly effective for strengthening your core. You'll also be less likely to get injured during heavy lifting.
Static holds are also useful for developing strong core muscles. This is because the core is required to engage to maintain the body's position, which is crucial to holding an exercise. They can also help build joint resiliency, which is necessary for heavy lifts.