Open Exercise

Development draft, v0. Formats and IDs may change.

Catalogue

Hand Gripper

oec:hand-gripper

A grip-strengthening exercise performed by crushing a torsion-spring gripper closed in one hand.

Generated by gemini-3.8-flash from the sources below. No person has checked this record. Don't rely on it for safety.

Also called: Hand Grip Squeeze, Gripper Close, Spring Gripper, Hand Grip

How to do it

Setup

  1. Place one handle of the gripper in the palm of your hand, seated securely against the base of your thumb.
  2. Wrap your fingers around the opposing handle, positioning your pinky, ring, middle, and index fingers firmly along the knurling.
  3. Maintain a neutral, locked wrist position.

Movement

  1. Squeeze your fingers inward with maximum effort until the two handles touch together.
  2. Pause briefly at full closure to ensure a complete repetition.
  3. Slowly open your hand, resisting the spring tension as the gripper returns to the starting position.

Breathing

Exhale forcefully as you squeeze the gripper closed, and inhale as you release the handles under control.

Cues

  • Crush through the pinky and ring fingers.
  • Keep your wrist straight.
  • Control the eccentric opening.

Common faults

Allowing the wrist to curl into severe flexion during the squeeze.
Keep the wrist rigid and neutral so force transfers directly into finger flexion.
Failing to touch the handles together at the finish.
Use a gripper with appropriate resistance that allows a full close on every working repetition.
Letting the spring snap the hand open.
Control the opening phase over one to two seconds to maximize forearm recruitment and prevent joint strain.

Safety

  • Warm up your hands and wrists before using high-resistance grippers to prevent tendon strain.

Muscles

  • Wrist and finger flexors prime mover
  • Muscles of the hand prime mover
  • Wrist and finger extensors stabilizer

Joints

  • Fingers: Flexion
  • Wrist: Isometric stabilization

Details

Movement
Grip and forearm isolation
Modality
Strength
Mechanics
isolation
Force
pull
Laterality
unilateral
Kinetic chain
open
Level
beginner
Equipment
None
Record
Repetitions
Load
external, total

Sources

This record: CC-BY-SA-4.0.

Data

hand-gripper.json