Muscle Upper

The Muscle Upper by Innophys is a powered back and arm support exoskeleton for lifting.  The power is generated using artificial muscles activated by compressed air.

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The Muscle Upper is the creation of Innophys and it is part of a broad effort in East Asia to create wearable devices to assist the workers of an aging population.

As the name suggests, Muscle Power is a powered exoskeleton.  Unlike other offerings from Innophys, Muscle Power is a hip-arms exoskeleton for pick and carry.  It uses compressed air that and the suit can be connected to a compressed air hose, commonly found in many worksites.

The muscle suit is wrapped inside a custom, water-repellent bag.  This protects the device from the elements and gives it a softer appearance.

The 2020 version of the Muscle Upper is reported to weigh 8.1kg (17.9lb) and can provide up to 140Nm of assistive force to the arms and back.

The MSRP is listed on the developer’s website.


  • 8.1 kg (17.9 lb) device weight (without external air compressor)
  • Requires access to compressed air
  • Upto 35.7 kgf (140 Nm) or 78.7 lbf  103 ft-lb) of assistive force
  • Ideal environment ambient temperature: 5℃  ~ 35℃ (41 F to 95 F)
  • Recommended user height: 160cm~185cm (5’3″ to 6’1″)

Innophys CO, LTD, Evers12th Hachioji Building 5F, 7-6, Azumacho, Hachioji-shi, Tokyo, Japan 192-0082, website

Exoskeleton Report does not endorse one exoskeleton product over another.  The exoskeleton catalog is purely for educational purposes.  The catalog is meant to provide an easily accessible birds-eye view of the exoskeleton industry, and a quick method to sort exoskeletons by type and purpose.  All prices are approximate and are meant to provide a general sense of the cost of the devices.

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