Lafayette Manual Muscle Testing Device
Lafayette Manual Muscle Testing Device

Lafayette Manual Muscle Testing Device

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Lafayette Manual Muscle Testing Device (MMT) is an ergonomic hand-held device for objectively quantifying muscle strength. The test is performed with the clinician applying force to the limb of a patient. The objective of the test is for the clinician to overcome or break the resistance of the patient. The MMT records the peak force and the time required to achieve the break providing reliable, accurate, and stable muscle strength readings that conform to most manual muscle testing protocols.

Manual Muscle Testing Device Measures
  • Peak force
  • Time to reach peak force
  • Total test time
  • Time within selectable ranges
  • Average force

PayPal Credits 6 Payments: Starts From $165.83

Item #DescPkgPrice 
1165 3.16 x 5.11 x 1.6 (8.03cm x 12.98cm x 4.1cm) Each $1200.00 $995.00

Features of Lafayette Manual Muscle Tester

  • MMT features a wide range of customizable options for data storage, preset test times, and force thresholds
  • Comes with three easy to change molded plastic stirrups with pads
  • Data storage for up to 150 tests in onboard memory
  • Automatic or manual storage of data
  • Measurement range 0 to 300lbs (136.1kg/1335 N)
  • Selectable test time from 1 to 10 seconds
  • Tone to indicate start, stop and entering within a range
  • Microprocessor controlled
  • Built-in stored data browsing capability
  • Easy to read graphical LCD display
  • Automatic shutoff after 5 minutes of inactivity
  • Battery indicator on LCD display
  • Interactive menus allowing users to select device options
  • Battery powered: One rechargeable lithium-ion battery


  • When performing repeated tests, inconsistent placement of the MMT will adversely affect scores.
  • Extreme temperature, especially heat, may affect the values obtained.
  • The MMT cannot tolerate the stress of being used as a floor scale.
  • Care should be taken not to drop the MMT, as it may affect the calibration.
  • Exceeding the force limit (300lbs/136kg/1335N) may permanently damage and/or invalidate the calibration of the MMT. 
  • Upon initial receipt of MMT, charge for 2 hours.
  • Stirrup should be rotated clockwise on and off to reduce friction on O-ring.

Specifications of Manual Muscle Tester

Size3.16" x 5.11" x 1.6" (8.03 cm x 12.98 cm x 4.1 cm)
Range0 - 300 lbs (136.1kg) (1335 N)
Accuracy ±1% over full scale or ± 0.2lbs
Resolution0.1lbs (0.1kg) / 0.1 N (0 to 999.9 N) / 1 N(1000 N to 1335 N)
Battery Life6 hrs powered on, 30 minutes after low battery condition
Charge Time80% charge => 45 minutes / Full charge => 2 hours
Data Storage Capacity150 tests
Calibration Points31 point (Every 10 lbs, 0 to 300)
Preset Test Length0.5 to 10 seconds, in 0.1 second increments

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