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

This equipment enables detailed functional assessment, generating reports before, during, and after training sessions. These reports serve as a critical tool for assessing human functional ability and as a scientific research resource.

Isokinetic muscle strength measurement evaluates the functional state of muscles by measuring load parameters during constant-velocity movement. Since the human body cannot naturally produce isokinetic motion, the limbs are fixed to the instrument's lever.

The speed-limiting device automatically adjusts resistance to match the user's effort, ensuring the movement speed remains constant. Greater effort results in higher resistance, effectively revealing the muscle's functional state through parameters like torque, optimal force angle, and work volume.

The system is highly effective for departments such as neurology, neurosurgery, orthopedics, sports medicine, and general rehabilitation. It targets:

• Muscle atrophy from reduced exercise or lesions.
• Muscle dysfunction caused by neuropathy.
• Weakness resulting from joint disease or injury.
• Strength training for healthy individuals and athletes.