A8 Isokinetic Training and Assesment System

Model: A8-3
Training Joints: Shoulder, elbow, wrist, hip, knee, ankle
Size: 200*80*180 cm
Training Modes: 22
Rotating Angle: -90 ~ 90°
Lowest Speed: 0.02° /S
Highest Torque: 700 Nm
Operating Temp: 5 ~ 40 ℃
Operating: PC


NX A8 Multi-Joint Isokinetic Strength Testing and Training Equipment

The A8 is a comprehensive assessment and training machine for the six major joints of the human body: shoulder, elbow, wrist, hip, knee, and ankle. It can perform isokinetic, isotonic, isometric, centrifugal, centripetal, and continuous passive testing and training.

The A8 can also generate reports before, during, and after testing and training, which can be used to assess human functional ability and as a scientific research tool. The A8 supports printing and storage functions, making it easy to manage and track patient progress.

How Does the A8 Work?

Isokinetic muscle strength measurement involves evaluating the functional state of muscle by measuring a series of parameters reflecting muscle load during isokinetic movement of limbs. The measurement is objective, accurate, simple, and reliable.

The human body cannot produce isokinetic motion on its own, so the limbs must be fixed on the lever of the instrument. When the limb moves independently, the speed limiting device of the instrument adjusts the resistance of the lever to the limb at any time according to the strength of the limb. This ensures that the limb moves at a constant speed.

Therefore, the greater the strength of the limb, the greater the resistance of the lever, and the stronger the load on the muscles. By measuring a series of parameters reflecting muscle load at this time, the functional state of the muscle can be truly revealed.

What is the A8 For?

The A8 is suitable for a wide range of applications, including:

  • Neurology
  • Neurosurgery
  • Orthopedics
  • Sports medicine
  • Rehabilitation

It is also applicable to a variety of conditions, including:

  • Muscle atrophy caused by exercise reduction or other causes
  • Muscle atrophy caused by muscle lesions
  • Muscle dysfunction caused by neuropathy
  • Muscle weakness caused by joint disease or injury
  • Muscle dysfunction
  • Healthy person or athlete muscle strength training

Features of the A8

  • Precise rehabilitation evaluation system with multiple resistance modes: The A8-3 can assess and train shoulder, elbow, wrist, hip, knee, and ankle joints with 22 movement modes.
  • Comprehensive assessment: The A8-3 can assess a variety of parameters, such as peak torque, peak torque weight ratio, work, etc.
  • Data tracking and analysis: The A8-3 can record, analyze, and compare test results, set specific rehabilitation training programs and goals, and record improvement.
  • Real-time feedback and reporting: Test and training results can be viewed during and after testing and training. The generated data and graphs can be printed as reports to assess human functional capabilities and as a reference to researchers and therapists.
  • Versatile training modes: The A8-3 enables a variety of modes that are suitable for all stages of rehabilitation, helping patients achieve the highest level of joint and muscle rehabilitation.
  • Targeted training: The A8-3 has strong pertinence and can test or train specific muscle groups.


The A8 should not be used by patients with:

  • Severe local joint pain
  • Severe joint mobility limitation
  • Synovitis or exudation
  • Joint and adjacent joint instability
  • Fracture
  • Severe osteoporosis
  • Bone and joint malignancy
  • Early postoperative
  • Soft tissue scar contracture
  • Acute swellingAcute strain or sprain


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