Pinch Grip Strength Test: Protocol and Reference Tables

The pinch grip test is a hand-specific assessment that complements the overall handgrip strength test. While handgrip dynamometry evaluates the strength of the whole hand, pinch grip assesses finer gripping patterns — highly relevant in hand and wrist rehabilitation, as well as in activities that require dexterity (writing, handling small objects, specific sport-related gestures).

What does this test measure?

It measures maximum pinching force between the thumb and other fingers, across different pinch patterns:

• Tip pinch (pad of the thumb to pad of the index finger)
• Lateral or key pinch (pad of the thumb against the side of the index finger)
• Palmar or tripod pinch (pad of the thumb with pads of the index and middle fingers)

It assesses the strength of the intrinsic and extrinsic hand muscles involved in fine pinching patterns, which is relevant for post-surgical rehab or after hand and wrist injuries.

Equipment needed

• Pinch dynamometer (pinch gauge)

Test protocol

1. The person sits with the elbow flexed at 90°, forearm in a neutral position, and wrist neutral or in slight extension
2. For each pinch type (tip, lateral, palmar), place the dynamometer between the thumb and the corresponding fingers
3. Ask the person to squeeze as hard as possible for 3-5 seconds
4. Record the value in kg
5. Repeat 2-3 times for each pinch type, on both hands, with rest between attempts
6. Record the maximum value for each pinch type and each hand

Common mistakes

• Not standardizing wrist and forearm position, which significantly affects the result
• Mixing pinch types within the same measurement "set" without clearly differentiating them
• Not comparing both hands, missing information about asymmetries that matter in rehab

How to interpret the results

Pinch type	Men (kg)	Women (kg)
Lateral (key) pinch	6-10	4-7
Tip pinch	4-7	3-5
Palmar (tripod) pinch	5-9	4-6

These are reference values for the dominant hand in healthy adults. In hand rehabilitation, what matters most is comparison with the healthy contralateral hand and progress over the course of treatment, rather than comparison to population tables.

Related tests

The pinch grip test pairs well with:

• Handgrip strength test (dynamometry) — assesses overall hand grip strength, in contrast to specific pinch patterns
• Forearm strength-endurance test (dead hang) — relevant when the end goal includes sustained-grip activities

Track and monitor progress

In hand rehab after surgery or injury (for example, flexor tendon or median nerve issues), the progression of pinch grip strength is one of the most sensitive objective indicators. With Movalytics you can log values for each pinch type and each hand at every session, and compare the progress of the affected side versus the healthy side throughout rehab.

Frequently asked questions

Which pinch type is usually the strongest? Lateral (key) pinch usually shows the highest values, followed by palmar (tripod) pinch, with tip pinch generally being the weakest. Is this test useful outside of hand rehabilitation? Yes — it can also be relevant in sports with specific fine-pinching demands (climbing, racquet sports, golf) or in occupational assessments. How often should this test be repeated during rehab? Usually every 1-2 weeks during active rehab phases, to adjust load and exercise progression based on strength gains.