Abbreviation	Meaning
ADL	Activities of Daily Living
FFA	Flexible Fluidic Actuator
SMM	Shape Memory Material
EAP	Electroactive Polymer
PAM	Pneumatic Artificial Muscle
PPAM	Pleated PAM
IPAM	Inverse PAM
SMA	Shape Memory Alloy
SMP	Shape Memory Polymer
DEA	Dielectric Elastomer Actuator
IPMC	Ionic Polymer–Metal Composite
SAM	Soft Artificial Muscle
SA	Soft Actuator
LM	Liquid Metal
EGaIn	Eutectic Gallium Indium
EE	Elastic Energy
MSE	Mean Square Error
GA	Genetic Algorithm
EMG	Electromyogram
DH	Degree of Hysteresis
RMS	Root Mean Square
ID	Inner Diameter
OD	Outer Diameter