Link, Pull Dynamometer

Kinvent SKU: kforce-link

Sale price$1,190.00
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The KFORCE Link is a pull sensor for measuring isometric muscle force. Non operator dependent measurements can be taken on the larger muscle groups because it can be easily secured to a physiotherapist table, to wall bars or to a pulley system. 

This dynamometer can be used in the assessment of a patients rehabilition for the upper and lower body.

The Link strength dynamometer communicates in real time with the KForce App.

  • Wireless Bluetooth communication with a tablet or smartphone through the KFORCE app.
  • Monitor a client's progress on maximal force, endurance and muscular symmetry in the KForce app’s database.
  • Set targets for repetitions and get real time count and pace of repetitions.
  • Set targets and measure sustained and static movement during an isometric exercise.
  • Minimum requirements for tablet: Android 5.0+ and iOS 10.0+, Bluetooth
  • Wireless transmission: Bluetooth
  • Wireless range: Up to 32 feet (10 meters)
  • Acquisition rate: 75 Hz
  • Battery: 12 hours of use with 6 hours of charging 
  • Maximum force capacity: 200 lbF (300 kgF)
  • Precision: +/-100 gF
  • Dimensions (H x W x D): 6.1 x 2.7.5 x 2.2 inches (154 x 68 x 55 mm)
  • Weight: 1.3 lbs (600 grams)
  • Warranty: 2 Years
Included Items
  • Link pull dynamometer
  • 2 carabiners
  • 2 loop fastening accessories for securing and to the desired limb and to a physiotherapy table, to wall bars or to a pulley system
  • 2 different resistance elastics for exercise with resistance
  • 1 adjustable rigid strap for the measurement of the maximum isometric force.
  • Charging cable
  • User Manual
  • CE Declaration of Conformity
KForce Brochure
KForce Manual



    Maximum Strength Evaluation

    This assessment tests the maximal capacity of a muscle group in a specific situation. The max corresponds to 100% of the strength abilities. It is related to a short and strong physical effort and it is very helpful as a work reference. The most relevant measured parameter is the Force Peak.

    Configuration Screen

    Exercises are customizable in order to train the patient or athlete on a targeted zone and optimize the work. Following the assessment results, the target zone is adjustable to a percentage of the max evaluation.

    Repetition Counts

    Based on the assessment reference, you will train your patients on a specific number of repetitions to reach a specific target (% of the max). With the Reps Counts, you will control in real-time the achievement as well as the pace of the repetitions. A repetition is counted when there is a muscles contraction & release cycle.

    Isometric Exercise

    On the opposite of the Reps count, this exercise requires a sustained and static movement instead of squeeze & release contraction cycles. It implies to keep the muscle contraction while keeping a steady position, and it requires control and accuracy of the level of strength. You can set a target for your patients.

    Customizable Games

    Meet Karl, the KINVENT’s kangaroo who moves in different playful setups. The games are customizable in order to train the patient or athlete with fun and towards a target, which can be adjusted in terms of percentage of the Max Evaluation, depending on the assessment results. Moreover, there are 10 levels of difficulty for each game, proposing an extra challenge to the patient/athlete.


    Karl is a Scuba Diver! Your patient will have fun controlling motion and strength in order to avoid the mean fishes while collecting a fortune of pearls and diamonds.


    This rehab-game makes Karl evolve with his hang-gliding in the desert. Controlling their strength and motion in order to make Karl avoid the cactus while collecting as much as possible of tree-leaf and butterflies, your patient will be happy to play.

    Results Details

    Results details of a max assessment isometric strength for a horizontal shoulder abduction. The results allow to highlight the percentage of deficit or imbalance of the injured shoulder compared to the healthy one on this specific movement. Each KFORCE report can be exported in a PDF format.

    Results Over Time

    The key to progress for the functional rehabilitation is the motivation. This motivation can be powered by the measurement and the ability to compare the starting point regarding the current state as well as how much effort is remaining before the recovery or the return to sport. Each KFORCE report can be exported in a PDF format.

    Use Cases
    External Rotator Strength

    Measurement of the external rotator strength with a rigid strap fixed on the wall bars.


    Triceps work with the rubber band attached on the wall bars.


    Measurement of the quadriceps strength with the rigid strap attached on the physiotherapist’s table.


    Evaluation of the isometric strength of the adductors. Muscle Controller is the ideal connected sensor to quantify the strength and to quickly compare to the antagonist muscle groups.


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