45° back extension (glute bias)

45° back extension (glute bias) uses hip extension to emphasize Glute max, supported by Hamstrings; spinal erectors. Programming purpose — Moderate-load hip extension with simple setup. Distinguishing feature — Easy to load with plate or dumbbell.
Legs
Compound

At a glance

Difficulty
Intermediate
Exercise Type
Hypertrophy
Muscle Group
Glutes
Equipment
Back Extention Bench
Force Type
Push
connection_pattern [#1105] Created with Sketch. Mechanics
Compound

Why this exercise matters

45° back extension (glute bias) matters because it has a clearly defined training role: Moderate-load hip extension with simple setup. Its structure keeps the exercise choice specific to the intended adaptation.
  • Primary stimulus — Glute max leads the movement; Hamstrings; spinal erectors contributes.
  • Programming role — Moderate-load hip extension with simple setup.
  • Why this version — Easy to load with plate or dumbbell.

How to perform

Use 2–4 × 10–20 reps as a working template and allow about 60–120 sec between sets. The aim is repeatable tension, not simply moving the heaviest load.
  1. Equipment setup — Prepare 45° bench and choose a load that preserves the intended hip extension.
  2. Starting position — Set the support at the hip crease and begin with the ribs stacked over the pelvis.
  3. Repetition path — Drive through the heels and extend the hips, then lower with control.
  4. Exercise-specific cue — Round only through upper back if coached; hinge at hips.
  5. Set endpoint — End the set when the target muscles can no longer control the same path and tempo.

What to avoid

The main safeguard is exercise-specific: Round only through upper back if coached; hinge at hips. Load and range should preserve the defining hip extension pattern.
  • Setup risk — Confirm that 45° bench is stable and correctly adjusted before loading.
  • Technique limit — Do not chase repetitions once the intended path changes or another body segment takes over.
  • Joint response — Reduce load or range for sharp, increasing, or joint-specific pain.
  • Progression — Add resistance only after the listed cue can be maintained across the whole set.

Target Muscle