US Patent Issued on Dec. 9 for "Twisting posture training aid for inertia throwing/striking sports involving rotation of torso axis and upper limbs" (Nevada Inventor)

ALEXANDRIA, Va., Dec. 9 -- United States Patent no. 12,491,427, issued on Dec. 9.

"Twisting posture training aid for inertia throwing/striking sports involving rotation of torso axis and upper limbs" was invented by Chih Wei Wu (Las Vegas).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed is a twisting posture training aid for sports, including: an inertia-direction marker arrangement; a torso twist optical pointing arrangement which includes a banding arrangement, a first optical pointer, and a first pivot, such that when the user is at address, the torso marker corresponding to the inertia direction is projected onto the operation plane; an upper limb motion optical pointing arrangement which include...