Accommodating Resistance Training: Chains and Bands Guide

Accommodating resistance using chains and bands is one of the most effective methods for building strength and power. This technique, popularized by Westside Barbell, matches the resistance curve to your strength curve for more effective training.

What Is Accommodating Resistance?

Accommodating resistance means the load changes throughout the range of motion. Instead of a fixed weight, the resistance increases as you approach lockout—where you're naturally strongest.

The Problem with Traditional Weights

With a standard barbell:

• The weight stays constant throughout the lift
• You're limited by your weakest point (the "sticking point")
• At lockout, where you're strongest, the weight feels too light
• You can't train maximum force production at all joint angles

How Accommodating Resistance Fixes This

By adding chains or bands:

• Resistance increases as you lift (more chain leaves the floor, band stretches)
• You must produce maximum force throughout the entire range
• Lockout becomes as challenging as the bottom position
• Your nervous system learns to accelerate through the whole lift

Chains vs Bands: Key Differences

Chains

How they work: Chain links pile on the floor at the bottom. As you lift, more chain comes off the floor, adding weight.

Characteristics:

• Linear resistance increase (predictable)
• Provides constant "feel"—weight doesn't fight back
• Adds stability challenge due to swinging
• Quieter, no snap-back risk

Best for:

• Beginners to accommodating resistance
• Controlled strength development
• Adding stability challenge
• Exercises where you want smooth resistance changes

Bands

How they work: Elastic tension increases as the band stretches during the lift.

Characteristics:

• Exponential resistance increase (aggressive at top)
• Accelerates the eccentric (pulls you down)
• Provides overspeed eccentrics
• Creates instability (oscillation)
• Must be anchored securely

Best for:

• Speed-strength development
• Reactive strength training
• Dynamic effort work
• Athletes needing explosive power

Resistance Comparison

| Position | Chains | Bands | |----------|--------|-------| | Bottom | Minimal added weight | Minimal added tension | | Mid-range | Moderate added weight | Moderate tension | | Lockout | Full chain weight | Maximum tension | | Eccentric | Same as concentric | Accelerated (band pulls down) |

Setting Up Chains

Equipment Needed

• Main chains: 5/8" diameter for heavy lifts (20-25 lbs per 5-foot chain)
• Leader chains: Smaller chains to hang main chains from
• For lighter work: 1/2" chains (10-15 lbs per 5-foot chain)

Standard Setup for Squats/Deadlifts

1. Loop leader chain over bar end (inside the collar)
2. Attach main chain to leader so it touches the floor at the bottom
3. At standing: About half the chain should be off the floor
4. At bottom: Most or all chain on the floor

Setup for Bench Press

1. Drape chains directly over bar at each end
2. Position: Chain should pile on floor at chest level
3. At lockout: Majority of chain lifted

Weight Calculations

A typical setup adds 10-20% accommodating resistance:

Example for 300 lb squat:

• Bar weight: 250 lbs
• Chains: 50 lbs total (25 lbs each side)
• Bottom position: ~250-260 lbs
• Lockout: ~300 lbs

Setting Up Bands

Equipment Needed

• Mini bands: 20-35 lbs tension (warm-ups, accessory)
• Light bands: 40-60 lbs tension (dynamic effort)
• Average bands: 60-100 lbs tension (moderate resistance)
• Strong bands: 100-150 lbs tension (heavy work)
• Monster bands: 150-200+ lbs (advanced lifters)

Tension values are approximate and vary by brand

Band-Resisted Setup (Standard)

Bands anchored to floor, resistance increases as you lift:

For squat:

1. Loop band around bottom of rack or heavy dumbbells
2. Stretch band up and loop over bar ends
3. Ensure equal tension on each side

For bench:

1. Anchor bands under the bench or rack feet
2. Loop over bar ends inside collars
3. Check that bar sits level at chest

For deadlift:

1. Stand on center of band
2. Loop ends over bar ends
3. Or loop band around base of rack and over bar

Reverse Band Setup

Bands attached above, providing assistance at the bottom:

Application:

• Overload the top range
• Practice lockout with supramaximal weights
• Reduce stress at vulnerable bottom position

Setup:

1. Attach bands to top of power rack
2. Loop under bar
3. At bottom: band stretches, providing lift assist
4. At top: minimal band assist, full weight on lifter

Band Tension Calculations

Bands add roughly 20-35% tension at lockout compared to start:

Example with average band (80 lbs at full stretch):

• Band tension at bottom: ~30 lbs
• Band tension at lockout: ~80 lbs
• Added accommodating resistance: ~50 lbs

Programming Accommodating Resistance

Dynamic Effort Method

Light weight plus bands/chains, moved explosively:

Parameters:

• 50-60% bar weight + 25% accommodating resistance
• 8-12 sets of 2-3 reps
• 45-60 seconds rest
• Maximum acceleration every rep

Example (500 lb squatter):

• Bar: 250 lbs (50%)
• Band tension at top: ~100 lbs
• Total at lockout: ~350 lbs
• 10 sets × 2 reps

Max Effort Method

Heavy weight plus moderate accommodating resistance:

Parameters:

• Work up to heavy single, double, or triple
• Accommodating resistance: 10-20% of max
• Full recovery between sets
• Rotate variations every 1-3 weeks

Example:

• Week 1: Squat + chains, work to heavy single
• Week 2: Squat + light bands, work to heavy triple
• Week 3: Pause squat + chains, heavy double

Repetition Method

Moderate weight, higher reps for hypertrophy:

Parameters:

• 60-75% bar weight + light accommodating resistance
• 3-5 sets of 6-12 reps
• Focus on controlled eccentric, explosive concentric

Exercise Applications

Squat Variations

Banded squat:

• Teaches you to drive hard out of the hole
• Band pulls you down, forcing acceleration on the way up
• Great for lifters who slow down near lockout

Chain squat:

• Smoother resistance increase
• Adds stability challenge
• Better for beginners to accommodating resistance

Bench Press Variations

Banded bench:

• Forces acceleration off the chest
• Teaches fast lockout
• Watch for shoulder stress (band pulls bar down fast)

Chain bench:

• Classic Westside method
• More forgiving on shoulders
• Easy to set up

Reverse band bench:

• Overload lockout with supramaximal weight
• Build confidence with heavier loads
• Reduce bottom position stress

Deadlift Variations

Banded deadlift:

• Standing on band increases difficulty at lockout
• Great for lifters who struggle at the top
• Builds hip drive

Chain deadlift:

• Increases weight as bar rises
• Useful for sumo pullers (more vertical bar path)
• Less aggressive than bands

Accessory Exercises

Accommodating resistance works for many movements:

• Leg press with bands
• Hip thrust with bands
• Push-ups with bands
• Rows with bands
• Good mornings with chains

Benefits of Accommodating Resistance

1. Matches Your Strength Curve

Your muscles produce more force at certain joint angles. Chains and bands increase load where you're strongest, making the entire lift challenging.

2. Teaches Acceleration

With traditional weights, you naturally decelerate near lockout. Bands and chains punish deceleration—you must drive hard through the entire range.

3. Reduces Joint Stress at Weak Points

Less load at the bottom (where joints are most vulnerable) means you can train heavy with less injury risk.

4. Develops Explosive Power

Learning to accelerate against increasing resistance directly transfers to sports performance and explosive movements.

5. Breaks Plateaus

Different stimulus challenges your nervous system in new ways, often breaking through sticking points.

6. Overspeed Eccentrics (Bands)

Bands accelerate the lowering phase, training your muscles to absorb and reverse force quickly—crucial for reactive strength.

Common Mistakes

1. Too Much Accommodating Resistance

More isn't better. If band/chain weight exceeds 25-30% of your max, you'll struggle at the bottom and lose training quality.

Fix: Start with 10-15% accommodating resistance and increase gradually.

2. Wrong Band Tension

Using bands that are too stiff creates excessive tension that alters your technique.

Fix: Choose bands where lockout tension is challenging but manageable.

3. Poor Anchoring

Bands slipping or chains sliding can cause injury or inconsistent resistance.

Fix:

• Double-check all attachments before lifting
• Use proper band pegs or heavy anchors
• Loop chains securely

4. Neglecting Speed

Accommodating resistance is meant to be moved fast. Grinding through reps defeats the purpose.

Fix: Reduce total load if you can't accelerate through the lift.

5. Using Only Accommodating Resistance

Straight weight training is still essential. Chains and bands are a tool, not a replacement.

Fix: Use accommodating resistance for 3-4 week blocks, then return to straight weight.

Sample Programs

4-Week Strength Block with Chains

Week 1:

• Squat: Work to heavy 5 (no chains)
• Bench: Work to heavy 5 (no chains)

Week 2:

• Squat + light chains: Work to heavy 5
• Bench + chains: Work to heavy 5

Week 3:

• Squat + moderate chains: Work to heavy 3
• Bench + chains: Work to heavy 3

Week 4:

• Squat + chains: Work to heavy single
• Bench + chains: Work to heavy single

Dynamic Effort Day Template

Lower Body:

1. Box squat + bands: 10×2 at 50% + band tension
   Rest: 60 seconds
2. Conventional deadlift + chains: 6×1 at 60%
   Rest: 90 seconds
3. Accessory work: 3-4 exercises

Upper Body:

1. Bench press + bands: 9×3 at 50% + band tension
   Rest: 45 seconds
2. Close-grip bench + chains: 3×5
3. Accessory work: 3-4 exercises

Who Should Use Accommodating Resistance?

Good Candidates

• Intermediate to advanced lifters
• Powerlifters looking to break plateaus
• Athletes needing explosive power
• Lifters with lockout weaknesses
• Those with adequate straight-weight base

Less Ideal For

• Beginners (master technique first)
• Those without proper equipment
• Lifters with significant mobility limitations
• Exercises where bottom position is the goal (pause work)

Equipment Recommendations

Budget Setup

• 2 average bands (~$30-40 total)
• Use for most applications

Intermediate Setup

• Mini, light, average, and strong bands (~$80-100)
• 60-80 lbs of chain with leaders (~$100-150)
• Covers all training scenarios

Full Setup

• Complete band set including monster bands
• Multiple chain weights (1/2" and 5/8")
• Band pegs for secure rack attachment
• Allows programming flexibility

Key Takeaways

1. Accommodating resistance increases load as you lift—matching your strength curve
2. Chains provide linear, predictable resistance—better for beginners
3. Bands provide exponential resistance with overspeed eccentrics—better for power
4. Start with 10-15% accommodating resistance and progress gradually
5. Speed is essential—if you can't accelerate, reduce the load
6. Cycle accommodating resistance with straight weight training

Chains and bands are powerful tools that have helped countless lifters break through plateaus. Used correctly, they teach your body to produce force throughout the entire range of motion—a skill that transfers to maximum strength and explosive power.