We want astronauts to spend less time rehabilitating on Earth and more time exploring space.

OUR MISSION

Microgravity: 

a challenge for astronauts.

In microgravity, the human body is no longer working against gravity. What seems effortless for astronauts – floating – is actually a powerful deconditioning stimulus. Without continuous mechanical load, muscles, bones and the cardiovascular system start to “switch off”, compromising mission performance and recovery once back on Earth.

BONE LOSS
Without load, weight-bearing bones lose 1–2% mineral density per month – up to 12–24x faster than on Earth – increasing fracture and early osteoporosis risk after long missions.
MUSCLE ATROPHY
Postural and leg muscles can shrink by ~20% in just six months on the ISS, with marked drops in strength and endurance even with daily exercise.
CARDIOVASCULAR ISSUES
Fluids shift to the upper body, blood volume falls and, on return, astronauts often face dizziness, low exercise capacity and balance problems during critical operations.

THE TECH BEHIND

Every detail of EMSi has been engineered to replicate the benefits 
of Earth’s gravity — without the gravity itself.

REA Space EMSi suit wins Compasso d'Oro ADI design award 2024

Winner of the Compasso d'Oro prize 2024

EMSi bionic intravehicular suit worn by astronaut — electrical muscle stimulation system for microgravity countermeasures
LIGHTWEIGHT DESIGN

TOTAL WEIGHT UNDER 1.200g FOR FULL SYSTEM INTEGRATION WITHOUT COMPROMISING MOBILITY

DIFFERENTIAL COMPRESSION SYSTEM, FLAME RETARDANT AND ANTI-BACTERIAL AND THERMOREGULATION PROPERTIES

INTEGRATED ECG, BIOIMPEDANCE, PPG, TEMPERATURE AND BIOMECHANICAL MONITORING SYSTEM

MUSCLE-SPECIFIC STIMULATION, MIMICKING GRAVITY-BASED LOADING CONDITIONS THROUGH A MULTI-GRAVITY ADAPTIVE SYSTEM

REMOVABLE INTELLIGENT HUB FOR DATA STORAGE, ENERGY MANAGEMENT AND ACTIVITY-SPECIFIC STIMULATION PROGRAMS

THE MISSION

REA Space technology and institutional partners logos
REA Space technology and institutional partners logos
REA Space technology and institutional partners logos