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Grip Strength Meter (GSM) for Mice and Rats
Peak grip force of the forelimbs, hindlimbs or all four limbs in mice and rats. The animal is pulled back by the tail, holds on to a bar or a grid, and the transducer records the force at which it lets go. Three force ranges up to 1500 gf at 0.1 gf resolution, with a live force trace to keep the pull rate constant.
What is the Grip Strength Meter?
A force transducer on a 13 cm pole, a heavy base, and a small battery-powered controller with a peak detector. The animal grips a bar or a grid, the operator pulls it back by the tail, and the GSM records the peak force at the moment the grip breaks.
The test is non-invasive. The same animal can be tested again next week, and the week after, which is how most grip strength data is built: disease progression in ALS and Parkinson's models, chronic exercise, aging, drug and toxicology studies.
Where the variance comes from
The weak point of a grip strength test is the operator. Pull fast and the peak goes up. Pull slowly and the animal tires before it lets go.
The GSM software draws the force trace live against a target slope, so the pull rate can be held constant from animal to animal and from one operator to the next. The base is height-adjustable, which keeps the angle of pull the same between trials, something a handheld meter cannot do.
Key Features
- Six grasping tools: T-shaped bar, mouse trapeze, rat trapeze, plastic grid, partly blind plastic grid, orientable metal grid
- Forelimb, hindlimb or four-limb testing
- Three force ranges: 0 to 100 gf, 0 to 500 gf, 0 to 1500 gf, at 0.1 gf resolution
- Self-calibrating, auto-zeroing transducer. No manual calibration between trials
- Test starts automatically when force is applied. Stop is automatic or by foot pedal
- Latency to release recorded in 0.1 s steps with every pull
- DCA software over USB, data export to CSV or TXT
- Rechargeable battery or USB power
What it does not measure
Grip strength is one number per pull. It says nothing about coordination, balance or gait, and a mouse with normal grip can still fall early on a RotaRod. In a motor phenotype the GSM is one test in a battery, usually next to a RotaRod and a gait system.
Which part of the motor phenotype is the study asking about?
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Technical Specifications
| Catalog Number | 47200 |
| Species | Mouse, rat |
| Force Ranges | 0 to 100 gf, 0 to 500 gf, 0 to 1500 gf |
| Resolution | 0.1 gf (force), 0.1 s (latency) |
| Operation | Soft buttons on the controller, automatic start when force is applied, automatic or foot pedal stop |
| Connectivity | USB (A to mini-B), GSM/DCA software |
| Data Export | CSV, TXT |
| Power | Rechargeable battery or USB; power supply 100 to 240 VAC, 50 to 60 Hz |
| Operating Temperature | 10 to 40 °C |
| Base | 26 × 22 × 2.5 cm |
| Pole | 13 cm high, 1.3 cm diameter |
| Weight | 3.8 kg (6.5 kg shipping) |
| Packing | 46 × 38 × 27 cm |
| Warranty | 12 months, plus 12 months on product registration |
Part Numbers
| 47200 | GSM Grip Strength Meter |
| 47200-001 | Electronic unit |
| 47200-002 | Force transducer |
| 47200-004 | Black PVC base, 13 mm upright |
| M-LM 588 | Trapeze, mouse |
| M-LM 590 | Trapeze, rat |
| M-LM 589 | T-shaped bar |
| 47200-325 | Grasping grid, mouse |
| 47200-326 | Grasping grid, partly blind |
| 47200-328 | Metal grasping grid |
| 38500-303 | External trigger switch (foot pedal) |
| E-AU 101 | USB key with DCA software |
Applications
- Forelimb, hindlimb and four-limb strength
- Fatigue, through repeated sequential pulls
- Drug testing and toxicology
- Aging and phenotyping
- Parkinson's disease, ALS and inflammation models in mice and rats
Motor Functions
צפו בכל המוצריםGrip Strength Meter Research Publications
Published studies using the Ugo Basile 47200 to measure forelimb, hindlimb and four-limb grip force in mice and rats, in models of ALS, Parkinson's disease, muscle atrophy, aging and drug toxicity.
Forelimbs only, or hindlimbs too?
Both, and all four limbs together. Forelimb tests use the T-shaped bar or a trapeze. Hindlimb and four-limb tests use one of the grids.
Does a rat need a different unit than a mouse?
No. Same controller, same transducer. What changes is the grasping tool, with separate mouse and rat trapezes, and the force range. The 0 to 100 and 0 to 500 gf ranges cover mouse work, 0 to 1500 gf is there for rats.
How is pull-rate variability between operators controlled?
The DCA software plots the force trace live against a predetermined slope, so the operator can match the same pull rate trial after trial. The height-adjustable base keeps the angle of pull the same. Neither takes the operator out of the test. Both make two operators far more comparable than a handheld meter does.
Can the GSM measure fatigue?
Yes, through repeated sequential pulls on the same animal and the drop in peak force across them. Latency to release is recorded with every pull, in 0.1 s steps.
Is it available in Israel with local support?
Yes. NBT distributes Ugo Basile in Israel. Installation, training and service are local.
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