Body relative directions (also known as egocentric coordinates) are geometrical orientations relative to a body such as a human person's body or a road sign.The most common ones are: left and right; forward and backward; up and down.They form three pairs of orthogonal axes.
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👉 Upright in the context of Forelimb
A forelimb or front limb is one of the paired articulated appendages (limbs) attached on the cranial (anterior) end of a terrestrial tetrapod vertebrate's torso. With reference to quadrupeds, the term foreleg or front leg is often used instead. In bipedal animals with an upright posture (e.g. humans and some other primates), the term upper limb is often used.
A forelimb is not to be confused with a forearm, which is a distal portion of the human upper limb between the elbow and the wrist.
In this Dossier
Upright in the context of Hindlimb
A hindlimb or back limb is one of the paired articulated appendages (limbs) attached on the caudal (posterior) end of a terrestrial tetrapod vertebrate's torso. With reference to quadrupeds, the term hindleg or back leg is often used instead. In bipedal animals with an upright posture (e.g. humans and some primates), the term lower limb is often used.
Upright in the context of Flip (acrobatic)
An acrobatic flip is a sequence of body movements in which a person leaps into the air and rotates one or more times while airborne. Acrobatic flips are commonly performed in acro dance, free running, gymnastics, cheerleading, high jumping, tricking (martial arts), goal celebrations, and various other activities. This contrasts with freestyle BMX flips, where a person rotates in the air along with a bicycle.
Acrobatic flips can be initiated from a stationary, standing position, but they are often executed immediately following another rotational move, such as a roundoff or handspring, to take advantage of the angular momentum generated by the preceding move. Generally, the hands do not touch the floor during the execution of a flip, and performers typically aim to land on their feet in an upright position; however, this is not required for the move to be considered a flip.