Back extension⚡️ When used as intended, lying belly down, th..
Added 2022-06-28 21:13:17 +0000 UTCBack extension⚡️ When used as intended, lying belly down, the back extension machine trains your hamstrings, glutes, and low back🍑🔥. Back extensions are a great supplemental exercise to the squat and the deadlift for developing your butt!
