DDFT	deep digital flexor tendon
IMU	inertial sensor unit
LF	left forelimb
MCPj	metacarpophalangeal joint
MCPj-ROM	metacarpophalangeal joint range of motion
MCPj-E	metacarpophalangeal joint extension
RF	right forelimb
S0	baseline, this abbreviation refers to the horse walking and trotting without the orthotic device on.
S1	orthotic at setting 1, this abbreviation refers to the horse walking and trotting with the orthotic at the lowest support setting.
S4	orthotic at setting 4, this abbreviation refers to the horse walking and trotting with the orthotic at the highest support setting.
SDFT	superficial digital flexor tendon
SL	suspensory ligament