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Dumbbell RDL

The accessible hamstring builder — perfect for home gyms and learning the hip hinge pattern


⚡ Quick Reference

AspectDetails
PatternHinge
Primary MusclesHamstrings, Glutes
Secondary MusclesErector Spinae, Lats
EquipmentDumbbells
Difficulty⭐ Beginner
Priority🟠 Common

Movement Summary


🎯 Setup

Starting Position

  1. Grip: Hold dumbbells with neutral grip (palms facing thighs)
  2. Stance: Feet hip-width apart, slight knee bend
  3. Posture: Standing tall, chest up, shoulders back
  4. Weight position: Dumbbells at sides or in front of thighs
  5. Core: Braced and ready

Equipment Setup

EquipmentSettingNotes
Dumbbell weightStart lightFocus on form first
GripNeutral (palms in)Most comfortable
Starting positionStandingDumbbells at thighs
Beginner Advantage

Dumbbells allow natural hand positioning and are less intimidating than a barbell for learning the hip hinge.


🔄 Execution

The Movement

What's happening: Hip hinge with hamstring stretch

  1. Take a deep breath, brace core
  2. Push hips back - this is the key movement
  3. Let dumbbells travel down thighs naturally
  4. Slight knee bend (soft knees, not locked)
  5. Stop when you feel hamstring stretch (mid-shin typically)

Tempo: 2-3 seconds controlled

Feel: Stretch in hamstrings, tension in glutes

Common error: Squatting down instead of hinging back

Key Cues

Primary Cues
  • "Push your hips back to the wall behind you" — initiates proper hinge
  • "Proud chest" — keeps back flat
  • "Feel the stretch in your hamstrings" — ensures proper depth

Tempo Guide

GoalTempoExample
Hypertrophy3-1-2-13s down, 1s pause, 2s up, 1s squeeze
Strength2-0-1-1Controlled eccentric, powerful concentric
Endurance2-0-2-0Continuous tension

💪 Muscles Worked

Activation Overview

Primary Movers

MuscleActionActivation
HamstringsHip extension, eccentric control█████████░ 85%
GlutesHip extension████████░░ 80%

Secondary Muscles

MuscleActionActivation
Erector SpinaeMaintain neutral spine███████░░░ 65%
LatsKeep dumbbells close█████░░░░░ 50%

Stabilizers

MuscleRole
CoreTorso stability
ForearmsGripping dumbbells
Perfect for Hamstrings

RDL is one of the best hamstring exercises because it emphasizes the eccentric (lengthening) phase where hamstrings grow best.


⚠️ Common Mistakes

MistakeWhat HappensWhy It's BadFix
Squatting instead of hingingKnees travel forwardBecomes quad exercisePush hips back, minimal knee bend
Rounding lower backSpine flexionInjury riskLighter weight, cue "proud chest"
Going too deepLoss of neutral spineBack strainStop at hamstring flexibility limit
Not feeling hamstringsUsing back insteadIneffective targetingFocus on hip push-back
Dumbbells too far forwardWeight pulls youBack strainKeep DBs close to legs
Depth Mistake

Most common error: Going too deep and rounding the back. Only go as far as your hamstring flexibility allows while maintaining a flat back.

Self-Check Checklist

  • Hip pushes back, not down
  • Knees stay mostly stationary (soft but not moving forward)
  • Back stays flat throughout
  • Feeling stretch in hamstrings, not pulling in back
  • Dumbbells travel close to legs

🔀 Variations

By Equipment

FeatureBenefit
AccessibilityMost gyms have dumbbells
Natural gripNeutral grip is comfortable
LearningGreat for beginners

By Stance

VariationChangePurposeLink
Single-Leg RDLOne leg at a timeBalance, unilateral strengthSingle-Leg RDL
Staggered StanceOne foot slightly backTransition to single-legB-Stance RDL
Bilateral (standard)Both feet downMaximum loadCurrent exercise

Training Variations

VariationModificationGoal
Tempo RDL4-5s eccentricHypertrophy, control
Pause RDL2s pause at bottomStretch emphasis
1.5 Rep RDLFull + half repExtended time under tension

📊 Programming

Rep Ranges by Goal

GoalSetsRepsRestLoadRIR
Strength3-46-82-3 minHeavy2-3
Hypertrophy3-410-1560-90sModerate2-3
Endurance2-315-20+45-60sLight3-4

Workout Placement

Program TypePlacementRationale
Leg dayAfter squats/main liftHamstring focus
Upper/LowerLower day, middlePosterior chain work
Full-bodyMiddle of workoutNot as taxing as deadlift
Home workoutMain hinge movementWith limited equipment

Weekly Frequency

Training LevelFrequencyVolume
Beginner2x/week3 sets
Intermediate2-3x/week3-4 sets
Advanced2-3x/weekVaried sets/loads

Sample Progression

DB Weight Selection

Start with dumbbells you can control for 12-15 reps with perfect form. Progress weight when you can complete all sets with 2-3 RIR.


🔄 Alternatives & Progressions

Exercise Progression Path

Regressions (Easier)

ExerciseWhen to UseLink
Bodyweight Hip HingeLearning the pattern
Kettlebell RDL (Single)Even lighter load
Glute BridgeBack issues

Progressions (Harder)

ExerciseWhen ReadyLink
Barbell RDLCan handle more weight
Single-Leg RDLBalance and unilateral
Deficit RDLNeed more ROM

Alternatives (Same Muscle Group)

AlternativeDifference
Romanian Deadlift (Barbell)More weight capacity
Good MorningBar on back
Stiff-Leg DeadliftEven less knee bend

🛡️ Safety & Contraindications

Who Should Be Careful

ConditionRiskModification
Low back painAggravation if form breaksVery light weight, focus on form
Hamstring strain (recovering)Re-injuryStart very light, limited ROM
Poor hip mobilityCan't maintain neutral spineWork on flexibility first
Stop Immediately If
  • Sharp pain in lower back
  • Hamstring pain (not stretch, but pain)
  • Can't maintain flat back despite form focus

Injury Prevention

StrategyImplementation
Start lightMaster form before adding weight
Respect flexibilityDon't force depth beyond your ROM
Gradual progressionAdd 5lbs at a time
Warmup properlyDynamic leg swings, light sets

🦴 Joints Involved

JointActionROM RequiredStress Level
HipFlexion/Extension70-90° flexion🟡 Moderate
SpineNeutral stabilityMinimal movement🟡 Moderate
KneeSlight flexion hold10-20° bend🟢 Low

Mobility Requirements

JointMinimum ROMTestIf Limited
Hip70° flexion with neutral spineToe touch with slight knee bendHamstring stretches, reduce ROM
Hamstring flexibilityModerateSit and reach testShorten ROM, work on flexibility

❓ Common Questions

What's the difference between RDL and regular deadlift?

RDL starts from the top (standing), focuses on hamstrings, uses less weight, and doesn't touch the floor. Regular deadlift starts from floor, uses more weight, and is more of a full-body movement.

How low should I go?

Go as low as you can while maintaining a flat back. For most people, this is mid-shin to just below knee. Stop when you feel a good hamstring stretch - don't force it deeper.

Should I feel this in my hamstrings or back?

Primarily hamstrings. You'll feel some back work (erector spinae), but if your back is burning more than hamstrings, you're likely using too much back and not enough hip hinge.

Can I do this every leg day?

Yes, 2-3x per week is fine. It's not as systemically taxing as heavy deadlifts, making it suitable for frequent training.


📚 Sources

Biomechanics:

  • NSCA Essentials of Strength Training - Tier A
  • ExRx.net Exercise Analysis - Tier C

Hamstring Development:

  • Schoenfeld, B.J. Hamstring Training Analysis - Tier B
  • Renaissance Periodization - Tier B

For Mo

When to recommend this exercise:

  • Beginner learning hip hinge pattern
  • User has dumbbells available (home gym)
  • User wants to build hamstrings without heavy barbell
  • User recovering from back injury (with lighter weights)
  • User needs hamstring work but lacks barbell access

Who should NOT do this exercise:

Key coaching cues to emphasize:

  1. "Push your hips back to the wall behind you"
  2. "Feel the stretch in your hamstrings, not pull in your back"
  3. "Keep your chest proud and back flat"

Common issues to watch for in user feedback:

  • "I don't feel it in hamstrings" → Check if squatting vs hinging
  • "My back hurts" → Reduce weight, check form, may be rounding
  • "How low should I go?" → As low as flat back allows

Programming guidance:

  • Pair with: Squats, quad work, upper body exercises
  • Avoid same day as: Heavy deadlifts (redundant posterior chain work)
  • Typical frequency: 2-3x per week

Progression signals:

  • Ready for barbell when: Mastered DB form, need heavier loads than DBs allow
  • Ready for single-leg when: Strong bilateral foundation, good balance

Last updated: December 2024