Longbox Tricep Curls

Category:	Reformer
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Category:	Pilates Lesson Planner
Sub Category:	Reformer
Types:	Balance, Prone, Seated & Floor, Strengthen
Anatomy:	Arms & Shoulders, Core, Lower Back, Middle Back, Wrists & Arms

Lie face down with the box under your stomach, facing the back of the reformer. Hold the straps with bent elbows and arms perpendicular to the floor. Inhale, extend your arms behind you. Exhale, return to the starting position. Repeat.

Strengthens triceps. Improves shoulder stability.

Beginner: Extend arms only partway behind you. Intermediate: Pulse one inch at extension ten times. Advanced: Hold extension 3 seconds each repetition.

Shoulder or elbow pain.

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Tricep Curls on Longbox Reformer: 30 Modifications for All Levels

Tricep Curls on Longbox Reformer is a focused arm-strength exercise from the original Reformer Pilates Card Deck, which features 48 reformer exercises designed to build strength, control, and balanced full-body conditioning.

Because you’re lying prone on the longbox, this move is a great way to strengthen the triceps while also training shoulder organisation and upper-back support. The goal is to keep the neck long, the collarbones wide, and the elbows tracking cleanly as the arms extend behind you and return with control.

The setup is simple: lie face down with the box under your stomach, facing the back of the reformer. Hold the straps with elbows bent and arms perpendicular to the floor. Inhale, extend the arms behind you. Exhale, return to start. Repeat smoothly, keeping the shoulders down and the carriage quiet.

Below are 30 unique modifications for Tricep Curls on Longbox Reformer, offering options for beginners, intermediate movers, and advanced practitioners.

10 Beginner Modifications For Tricep Curls on Longbox Reformer

Beginner Modification 1: Lighter Spring Choice
Use lighter tension for easier shoulder control.

Beginner Modification 2: Smaller Extension Range
Extend arms only partway behind you.

Beginner Modification 3: Keep Forehead Supported
Rest forehead on a towel for neck comfort.

Beginner Modification 4: Legs Relaxed Option
Relax legs if low back feels tight.

Beginner Modification 5: Elbows Slightly Forward
Bring elbows slightly forward to reduce strain.

Beginner Modification 6: Slow Tempo Reps
Move slowly and keep straps controlled.

Beginner Modification 7: Shorter Set Count
Do fewer reps and keep them precise.

Beginner Modification 8: Pause and Reset Shoulders
Reset shoulders down between repetitions.

Beginner Modification 9: Keep Hands Closer Together
Keep hands closer to maintain elbow tracking.

Beginner Modification 10: One Arm at a Time
Work one arm while the other rests.

10 Intermediate Modifications For Tricep Curls on Longbox Reformer

Intermediate Modification 1: Two-Second Hold at Extension
Hold arms long for two seconds each rep.

Intermediate Modification 2: Slow Return Control
Return for four steady counts.

Intermediate Modification 3: Long Exhale Return
Exhale slowly as elbows bend back in.

Intermediate Modification 4: Keep Arms Lifted Behind
Maintain arm height as elbows straighten.

Intermediate Modification 5: Add Tiny End Pulses
Pulse one inch at extension ten times.

Intermediate Modification 6: Shoulder Blade Control Focus
Shoulder blades glide down, not pinch.

Intermediate Modification 7: Keep Strap Tension Even
Maintain even tension throughout.

Intermediate Modification 8: Carriage Silence Goal
No clunks, just smooth strap work.

Intermediate Modification 9: One Breath Per Rep
Inhale extend, exhale return with rhythm.

Intermediate Modification 10: Longer Set Endurance
Add five extra reps without losing form.

10 Advanced Modifications For Tricep Curls on Longbox Reformer

Advanced Modification 1: Hold Extension Three Seconds
Hold extension three seconds each repetition.

Advanced Modification 2: Add Tiny Pulses at Extension
Add tiny pulses at full elbow extension.

Advanced Modification 3: Keep Arms Lifted and Widen Slightly
Keep arms lifted and widen straps slightly.

Advanced Modification 4: Raise Legs Slightly
Lift both legs and keep pelvis stable.

Advanced Modification 5: Add Thoracic Lift Hold
Lift chest slightly while arms extend.

Advanced Modification 6: Tempo Challenge Counts
Extend four counts, return four counts.

Advanced Modification 7: Hold Extension Five Breaths
Hold arms long and breathe five slow breaths.

Advanced Modification 8: Single-Arm Extension Alternating
Extend one arm, switch each repetition.

Advanced Modification 9: No-Neck Tension Control Goal
Extend without lifting shoulders or craning neck.

Advanced Modification 10: Extended Endurance Set
Double reps without losing elbow alignment.

George’s Conclusion and the Reformer Pilates Card Deck

Tricep Curls on Longbox Reformer is a simple, effective way to build strong arms while practising good shoulder organisation. When the elbows track cleanly and the shoulders stay down, the triceps do the work and the neck stays relaxed.

Use the beginner modifications to stay comfortable and aligned, the intermediate variations to build endurance and control, and the advanced options to increase challenge through longer holds, pulses, leg lifts, thoracic lift, slower tempo, and single-arm work.

The Reformer Pilates Card Deck includes 48 essential reformer exercises, and with layered modifications like these, it’s your complete library for classes, privates, and home practice.

Longbox Tricep Curls

Tricep Curls on Longbox Reformer: 30 Modifications for All Levels

10 Beginner Modifications For Tricep Curls on Longbox Reformer

10 Intermediate Modifications For Tricep Curls on Longbox Reformer

10 Advanced Modifications For Tricep Curls on Longbox Reformer

George’s Conclusion and the Reformer Pilates Card Deck

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