Neurotechnology

Fourier M2 & ArmMotus™ M2 Pro

Robotics

Robotic upper limb systems enable adaptable, task-specific training by providing passive, assistive, active, and resistive modes to match each stage of recovery.

What is it?

The Fourier M2 and ArmMotus™ M2 Pro (collectively referred to as the M2), developed by Fourier Intelligence, is a robotic, height-adjustable workstation designed for upper limb rehabilitation. It functions as an end-effector device, meaning it guides movement through the user’s hand and forearm rather than controlling each joint individually. The system provides four therapy modes, passive, assistive, active, and resistive, allowing therapy to be tailored to the user’s level of ability and progression. Using motors, sensors, and haptic feedback, the device enables controlled movement in two planes while engaging users in interactive, game-based exercises. It is designed for individuals with upper limb impairments affecting the shoulder and elbow, and can also support postural stability and trunk control as part of a broader rehabilitation approach.

How do different therapy modes in robotic rehabilitation devices support progression in upper limb recovery?

Different therapy modes allow rehabilitation to be matched to an individual’s current functional level and adjusted as recovery progresses. Passive mode supports individuals who cannot initiate movement, enabling guided repetition of movement patterns. Assistive mode provides support when the user begins to initiate movement but cannot complete tasks independently, while active mode allows users to perform movements with minimal assistance. Resistive mode introduces controlled resistance to help build strength and endurance. This graded approach enables continuous challenge, promotes motor learning, and supports gradual improvements in strength, coordination, and functional arm use.

M2 for Upper Limb Neurological Rehabilitation and Functional Recovery

The M2 is used for individuals with upper limb impairments such as weakness, poor coordination, abnormal movement patterns, increased muscle tone, and reduced endurance. It is commonly used in neurological rehabilitation for conditions affecting the shoulder and elbow, including stroke, traumatic brain injury, and other neurological disorders. In addition to upper limb training, the device can also support improvements in postural stability, trunk alignment, and balance, which are important foundations for effective arm function. It can be integrated into inpatient, outpatient, and intensive rehabilitation programmes as part of a structured, goal-oriented treatment plan.

How Does the M2 Work as an End-Effector Upper Limb Training System

The M2 operates as an end-effector device, meaning movement is controlled through the user’s interaction with a hand-held control interface connected to the workstation. The device uses motors in two planes to guide and support movement, while built-in sensors detect user effort and movement intention. Haptic feedback provides additional sensory input, allowing the system to assist or resist movement as needed. Therapy is delivered through interactive, game-based tasks that encourage engagement while training coordinated movement patterns across the upper limb in a controlled and measurable way.

Using the M2 in Upper Limb Rehabilitation at Hobbs Rehabilitation

At Hobbs Rehabilitation, the M2 is incorporated into multidisciplinary rehabilitation programmes as part of a personalised approach to upper limb recovery. Clinicians use the device alongside conventional therapy and other interventions to support functional goals. Its adjustable setup and multiple therapy modes allow sessions to be tailored to the individual’s ability, progressing from passive support to active and resistive training. The system is used to deliver structured, repetitive, and interactive therapy aimed at improving movement quality, strength, coordination, and functional use of the upper limb within an intensive rehabilitation setting.

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Please note: While the locations listed show where each device is normally available, some smaller pieces of equipment are occasionally shared between centres. Larger devices remain at their designated locations. For specific requests, please contact us, and we will advise on availability or alternatives.