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Concept Prototype · PlatinumLogik Fitness

Shoulder Yoke
Resistance Trainer

RESIST THE PUNCH. CONTROL THE RETURN.

Wearable punch resistance for strength, control, and return training. A compact neoprene shoulder platform with independent dual cords that stacks progressive elastic load + optional glove mass into one portable system.

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Dual
Independent Cords
0 Anchor
Fully Portable
Stack
Mass + Elastic
Shoulder Yoke Resistance Trainer - Boxing Hand Speed Config
Proof of Concept Validated with 1 lb weighted gloves + rehab bands
🛡️

Stable Fit

Neoprene shoulder yoke stays secure during dynamic motion and spreads load away from the neck.

🔗

Independent Pull

Dual cords create balanced, progressive resistance for bilateral or single-arm work.

🪶

Lightweight Comfort

Breathable stretch support built for training sessions and rehab progression.

The Story

From Rehab Experiment to Product Platform

Born from real shoulder rehabilitation work — not a lab sketch.

Parts breakdown diagram

Origin & Proof of Concept

During shoulder rehab, two tools were already in use: elastic resistance bands and one-pound weighted MMA-style gloves. Combining them — band across the upper back, ends secured in the gloves — immediately proved a powerful principle.

Every punch, reach, or defensive motion became more demanding without attaching to a wall, door, or machine. The resistance moved with the athlete.

  • Resistance travels with the user — no fixed anchor required
  • Left and right arms train together or independently
  • Challenges both outward force production and controlled return
  • Weighted gloves + elastic can be stacked or used separately
  • A dedicated yoke organizes the band path and prevents neck roll
Movement Cycle

How It Works

One movement trains force production, stability, endurance, deceleration, and recovery.

01

Set the Fit

Slip the neoprene yoke over the arms and settle it across the shoulders. Adjust so it stays secure without restricting breathing or rotation.

02

Select Resistance

Choose light, moderate, or advanced cords. Decide whether to add glove mass for stacked loading.

03

Establish Guard

Hands begin near the body in boxing guard or neutral position with minimal controlled tension.

04

Perform the Move

As the hand travels forward or outward, the elastic lengthens and resistance progressively increases.

05

Control the End

Decelerate before elbow lockout. Maintain joint alignment and shoulder control at the end range.

06

Return Under Control

The cord assists the hand back while the athlete actively controls speed and path — training recovery to guard.

Platform Flexibility

Operating Modes

The same yoke supports light rehab through advanced performance work.

🧘

Light / Activation Mode

Very light cords, no glove weights, slow controlled movement — ideal for warm-up, mobility, or guided rehab progression.

🥊

Technique / Endurance Mode (Hand Speed Config)

Light-to-moderate cords connected shoulder-to-glove, unweighted or lightly weighted gloves — repeated punches, combinations, guard recovery, timed rounds. Emphasizes progressive resistance while preserving natural hand speed.

💪

Strength-Endurance Mode

Moderate resistance with selected glove mass for controlled, lower-speed drills emphasizing force production and shoulder endurance.

☝️

Single-Arm Mode

One cord at a time to address asymmetry, side-to-side control, targeted activation, or unilateral sport movements.

System Architecture

Key Components

Modular platform rather than a single fixed configuration.

Component Purpose
Shoulder Yoke Low-profile, breathable, padded support that stabilizes the resistance path and spreads load across shoulders and upper back.
Independent Resistance Cords Separate left and right elastic cords for balanced bilateral movement, single-arm drills, and interchangeable resistance levels.
Shoulder Anchors Reinforced loops, D-rings, or low-profile rotating anchors positioned away from the neck and aligned with natural arm motion.
Glove / Wrist Connection Purpose-built attachment that replaces the proof-of-concept knot, keeps hardware out of the palm, and preserves wrist alignment.
Weighted or Unweighted Gloves MMA-style or training gloves used with removable hand mass, fixed light weights, or no added weight depending on the goal.
Adjustment & Safety Hardware Cord-length adjustment, swivel connectors, covered elastic sections, optional quick-release or overload-release features.
Applications

Potential Uses

Combat sports, fitness, conditioning, and shoulder-focused movement.

Boxing & Combat Drills

Resisted jabs, crosses, combinations, guard recovery, controlled hooks, uppercuts, defensive hand movement, and timed shadowboxing rounds.

Punch Endurance

Repeated low-to-moderate resistance rounds increase muscular demand on shoulders, upper back, chest, arms, and trunk.

Technique Awareness

The progressive pull makes loss of alignment, excessive reach, uneven left-right output, or weak return-to-guard easier to notice.

Shoulder Activation & Warm-up

Light resistance for gradual arm extensions, scapular movement, controlled punches, and sport-specific preparation.

Rehab Progression

Low-resistance configuration can support professionally prescribed shoulder and upper-body exercise when approved for the individual.

Portable Training

Body-carried resistance means no door anchor, cable stack, wall attachment, or large machine is required.

Why It Matters

Core Benefits

Performance advantages the system is designed to support.

▸ Progressive Resistance

Elastic loading increases through the movement instead of remaining constant, creating a scalable challenge across the usable range.

▸ Controlled Return & Deceleration

The user must manage the assisted return rather than allowing the hand to snap back — reinforcing control and recovery to position.

▸ Shoulder & Upper-Back Engagement

Recruits stabilizers that manage the shoulder blades, humeral position, arm path, and posture under dynamic load.

▸ Bilateral Balance

Separate left and right cords allow resistance to be matched, intentionally varied, or used independently.

▸ Modular Loading

Cord resistance and glove mass can be progressed separately for more precise control than a fixed-weight device.

▸ Multi-Benefit Efficiency

The same exercise combines movement practice, resistance, shoulder activation, core stabilization, endurance, and return control.

Next Phase

From Validated Principle → Engineered Product

The proof of concept has established that the basic mechanics are workable. The next phase is exact dimensions, measured resistance ranges, secure connection hardware, and a repeatable prototype suitable for testing.

Concept originator: Cedric Chaffold · Presented under PlatinumLogik Fitness

Download Full Invention Description (PDF)