Table 1.

Sensorless upper limb exoskeletons in pediatrics.

Device Name	Application Domain	Motorization Solution	Targeted Population(s)	Degrees of Freedom	Supported Movement(s)	Company/Reference(s)
Dynamic Orthosis	Assistance	Passive–SMA	Other	3	Elbow–FE Wrist–FE Thumb and Digits–FE	Garavaglia et al. [54]
Elbow Flexion Assist Orthosis	Assistance	Passive–Springs	AMC	1	Elbow–FE	Wee et al. [55]
Playskin Lift	Assistance	Passive–Wire	AMC, BPP, Other	1	Shoulder–FE	Hall et Lobo [56]
Playskin Air	Assistance	Active–Soft	AMC, BPP, Other	1	Shoulder–AA	Li et al. [57]
P-WREX+	Assistance	Passive–Springs	AMC, BPP, Other	4	Shoulder–FE, AA Elbow–FE	Rahman et al. [58]
WREX	Assistance	Passive–Springs	DMD, AMC, CP, SMA	4	Shoulder–FE, AA Elbow–FE	Gunn et al. [59], Shank et al. [60]

Abbreviations: CP: cerebral palsy, DMD: Duchenne muscular dystrophy, AMC: arthrogryposis. SMA: spinal muscular atrophy, BPP: brachial plexus palsy, FE: flexion–extension, AA: abduction–adduction.