Exercises

Dumbbell Good Morning

RX
ROXBASE Team
··3 min read·
A hinge exercise used in HYROX training.

The dumbbell good morning is a hinge exercise that builds the hamstring and lower-back endurance HYROX athletes need for running and sled pulls.

Definition

The dumbbell good morning is a hinge-pattern exercise where the athlete holds a dumbbell at the chest or behind the neck and bends forward at the hips while keeping the knees slightly bent. It targets the hamstrings and erector spinae through a controlled hip hinge. For HYROX® athletes, the good morning builds the posterior chain endurance needed for running and sled pulls.

Technique & Form

  1. Starting position - Stand with feet hip-width apart. Hold a dumbbell vertically at chest height (goblet position) or horizontally behind the neck across the upper traps. Slight bend in the knees.
  2. Hinge phase - Push the hips back and lower the torso toward the floor. Keep the back flat and the dumbbell close to the body. Hinge until you feel a strong stretch in the hamstrings (typically 60-80 degrees of torso lean).
  3. Return phase - Drive the hips forward to return to standing. Squeeze the glutes at the top.
  4. Breathing - Inhale as you hinge; exhale as you stand.
  5. Tempo - 3 seconds down, 1 second up.

Muscles Worked

  • Primary movers: Hamstrings, erector spinae, gluteus maximus
  • Stabilizers: Core (transverse abdominis, obliques), adductors

Common Mistakes

  • Rounding the back - Spinal flexion under load risks injury. Fix: keep the chest up and back flat throughout. Reduce range of motion if you cannot maintain a neutral spine.
  • Bending the knees too much - Excessive knee bend turns it into a squat. Fix: keep a slight fixed bend and drive the hips back.

Benefits

  • Strengthens the posterior chain through an extended range of motion.
  • Builds hamstring flexibility under load - active flexibility that prevents running injuries.
  • Develops the hip-hinge pattern that underpins deadlifts and sled pulls.

HYROX® Context

The good morning builds the hamstring and lower-back endurance that HYROX® athletes need across 8 km of running and the Sled Pull station. Weak erector spinae muscles fatigue during the later running segments, causing posture breakdown and slower pace. Program 3 sets of 10-12 reps as a posterior chain accessory, pairing with dumbbell Romanian deadlifts for comprehensive hamstring training.

Variations & Alternatives

FAQ

Are good mornings safe for the lower back? Yes, when performed with a flat back and appropriate loading. Start light (5-10 kg) and focus on the hip hinge. Athletes with existing lower-back injuries should consult a physiotherapist first.

When should I program good mornings? As a secondary movement after your main hip-hinge exercise (deadlift or Romanian deadlift). They work well in supersets with core exercises like planks.


Build posterior chain endurance and track your hinge-pattern progressions with ROXBASE.

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