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Back Extension GIF — animated back exercise demonstration

Back Extension

Beginner
Lower Back
Body Weight

Back Extension pairs pure bodyweight leverage with control through the whole range — simple enough to learn in one session.

How to do Back Extension

  1. Lie face down on a hyperextension bench, tucking your ankles securely under the footpads.
  2. Adjust the upper pad if possible so your upper thighs lie flat across the wide pad, leaving enough room for you to bend at the waist without any restriction.
  3. With your body straight, cross your arms in front of you (my preference) or behind your head. This will be your starting position. Tip: You can also hold a weight plate for extra resistance in front of you under your crossed arms.
  4. Start bending forward slowly at the waist as far as you can while keeping your back flat. Inhale as you perform this movement. Keep moving forward until you feel a nice stretch on the hamstrings and you can no longer keep going without a rounding of the back. Tip: Never round the back as you perform this exercise. Also, some people can go farther than others. The key thing is that you go as far as your body allows you to without rounding the back.
  5. Slowly raise your torso back to the initial position as you inhale. Tip: Avoid the temptation to arch your back past a straight line. Also, do not swing the torso at any time in order to protect the back from injury.
  6. Repeat for the recommended amount of repetitions.

Back Extension Sets and Reps by Goal

Strength

3 sets of 6-8 hard reps with 2 minutes of rest. Add reps first, then slow the lowering phase.

Hypertrophy

3 sets of 10-15 reps with 60-90 seconds of rest. Change leverage or elevation before you add load.

Endurance

2-3 sets of 20-25 reps with 45 seconds of rest. Hold the end position for a beat once reps come easily.

Common Back Extension Mistakes

Rushing reps so gravity does most of the work

Take two to three counts on the lowering phase of every rep.

Letting a nearby joint take over as the set gets hard

Stop the set as soon as the working joint stops leading the movement.

Training every set to failure this early

Leave two or three reps in the tank and add sets instead.

Easier and Harder Than Back Extension

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Back Extension — Frequently Asked Questions

How do you do the Back Extension?

Lie face down on a hyperextension bench, tucking your ankles securely under the footpads. Adjust the upper pad if possible so your upper thighs lie flat across the wide pad, leaving enough room for you to bend at the waist without any restriction. With your body straight, cross your arms in front of you (my preference) or behind your head. This will be your starting position. Tip: You can also hold a weight plate for extra resistance in front of you under your crossed arms. Use your bodyweight only and keep the movement controlled through the full range. The animated GIF above shows the complete rep at normal speed.

What muscles does the Back Extension work?

The Back Extension primarily targets the lower back. It is classified as a back exercise and is performed with your bodyweight only.

How many sets and reps of the Back Extension should I do?

For muscle growth: 3 sets of 10-15 reps with 60-90 seconds of rest. Change leverage or elevation before you add load. Adjust the load rather than the rep target if form breaks down before the final rep.

Is the Back Extension good for beginners?

Yes. The Back Extension is a beginner-level movement, so it is a reasonable place to start. Keep the load light enough that you can control every rep and stop 2-3 reps short of failure while you learn the pattern.

What can I do instead of the Back Extension?

Try the Barbell Deadlift. Each trains the lower back with a similar movement pattern, so you can swap based on the equipment you have available.

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