CSMI or Cybex Norm Isokinetics Machine Specifications



Measurement & Exercise Modes

The HUMAC NORM offers seven primary measurement and exercise solutions.

These are performed to assess and improve mobility, stability, control and strength. The HUMAC NORM offers four types of resistance / movement and three contraction cycle types with numerous feedback options and over fifty types of reports to meet these goals.
  • Passive Mode (CPM or active assisted): Develop the mobility that the patient requires, from straight pattern movements to complex PNF patterns. Also useful with the weakest of patients to stimulate eccentric muscle contraction and proprioception – kinesthetic sense i.e. replicate a demonstrated speed.
  • Isometric Mode: Perform multi-angle isometric tests and exercises to safely stabilize the joint while avoiding painful ranges of motion. Passive and active isometric modes. Pre activation levels for each motion. Also used for proprioception training – joint position sense i.e. find a point in the ROM.
  • Isotonic Mode: Facilitate neuromuscular improvement with functional isotonic concentric/eccentric resistance coupled with user defined velocity based feedback displays.
  • Isokinetic Mode:  The most efficient way to improve strength is with isokinetic resistance. Choose from traditional concentric / Concentric or Concentric / Eccentric to simulate real-time injury prevention. Eccentric / Eccentric mode is available for research. Gravity elimination is available for early rehabilitation. Limitation of ballistic forces is available in each isokinetic mode. Minimal torque values can be set to allow progressive rehabilitation. Split isokinetic speeds for optimal strength rehabilitation.
  • Games Mode: Games are included to increase strength and or proprioception. These modes allow exercise and longitudinal testing without the perception of clinical exercise.
  • Joint Position Sense (proprioceptive): Assess and re educate joint position sense using passive or active actions / games.
  • Kinesthetic Sense (proprioceptive): Assess and re educate speed of joint motion sense using passive or active actions / games.

Humac Norm Patterns

The HUMAC NORM includes attachments to perform 42 pre set patterns 22 isolated and 20 combination patterns covering the shoulder, elbow, wrist, hip, knee, ankle and back. The Norm also includes an 'open' pattern to allow the user to make their own movements / patterns.
Ankle Plantar Flexion Dorsi Flexion (Prone Gastrocnemius)
Ankle Plantar Flexion Dorsi Flexion (Modified Supine Soleus)
Ankle Inversion Eversion
Knee Flexion Extension (Seated)
Knee Flexion Extension (Prone)
Knee Rotation
Hip Flexion Extension
Hip Abdution Adduction
Hip Rotation
Shoulder Flexion Extension
Shoulder Abduction Adduction (Seated)
Shoulder Abduction Adduction (Horizontal)
Shoulder PNF1
Shoulder PNF2
Shoulder Rotation (Modified Seated)
Shoulder Rotation (Standing)
Shoulder Rotation (90 Degrees Abduction)
Shoulder Rotation (90 Degrees Flexion)
Elbow Flexion Extension
Forearm Pronation Supination
Wrist Flexion Extension
Wrist Radial Ulna Deviation
Optional attachments allow trunk extension/flexion, work simulation, and closed kinetic chain patterns.
Johnson Anti Shear (JAS)
johnson anti shear.jpg
The Johnson Anti-Shear Dual Pad Accessory with adjustable fulcrum allows the clinician to select the correct amount of counterforce necessary to control anterior shear during knee extension. This prevents excessive stress on repairs, healing, or chronically lax ligaments.
Work Tools
The Work Simulation Package allows clinicians to simulate an unlimited number of real-life and occupational patterns. The attachments include an assortment of handles and knobs, a steering device, a gripping device, and a push/pull device. Because the HUMAC NORM's dynamometer shaft rotates ten revolutions (3600 degrees) in the same direction, you enjoy a greater range of exercise options. 
Closed Kinetic Chain (CKC)
The optional CKC expands the HUMAC NORM from a rotary device to a linear device. Use the rugged CKC to test and exercise patients in linear, closed chain patterns. The CKC includes attachments to perform a single and bilateral leg press, and bilateral chest press.
Trunk Modular Component (TMC)
With the TMC the HUMAC NORM is perfectly suited for testing and rehabilitation in a fully functional, standing position. The motorized footplate ensures accurate patient positioning. The low inertia input assembly and lightweight attachment enables patients to begin rehabilitation sooner.


Resistance Modes:

Power Requirements:

Suggested Floor Plan



Top Tip:

When setting range of motion:

For a test to be valid in isokinetic or isotonic mode, the range of motion needs to be within 10% of the TOTAL of the other side. Or in other words within 5% at each end of the range of motion.