For those who are unfamiliar with the term, hyperextensions are an important movement involving the joint surpassing its normal range of motion. They are extremely effective in building strength, enhancing mobility and improving control of the muscles running the posterior chain (back of the body).

The nature of this extension means your glutes, hamstrings, calves, lats and erector spinae—the muscles and tendons lining the length of the spine-are put to work! In particular, hyperextensions are perfect for building on your glute strength while protecting your lower back from injury.