Abstract: A percussive beater includes an elongated shaft having a first end and a second end; a beater head mechanically coupled to the first end of the elongated shaft; and a transducer mechanically coupled to the beater head, the transducer configured to receive an impact from the beater head and convert the impact into an electrical signal. The percussive beater also includes, in various embodiments, one or more of: an electrical signal filter in electronic communication with the transducer, the electrical signal filter configured to receive the electrical signal, adjust a portion of the electrical signal, and output an adjusted electrical signal; a transducer that is located inside the beater head along with one or more of a wireless connector, an electrical connector or an electrical wire; or a front face that is in direct contact with a padding layer, the padding layer in direct contact with the transducer.

Abstract: An improved alignable pulley or sheave assembly includes: (a) a shaft having a rotational axis and an exterior surface which has a portion that is spherically shaped, (b) a pulley having a perimeter and a central opening with an interior surface that is configured so as to allow the pulley to be mounted on shaft's spherical shaped portion, and (c) a means for locking the shaft and pulley together such that they rotate together while also enabling the pulley to tilt from side to side with respect to a plane that lies perpendicular to the shaft's rotational axis.

Abstract: A posture correction exercise device is disclosed to aid in correcting the common postural condition of kyphosis-lordosis by aiding in the exercise of the spinal erectors to strengthen the erectors to pull the user's spine and torso backward into normal alignment and by exercise of the mid-trapezious, rhomboid and posterior deltoid muscles to strengthen these muscles to pull the user's shoulder blades together and force the shoulders into normal alignment. The device operates by seating the user upon a declined seat to provide increased resistance by gravity. The device provides resistance to backward movement of user's body and resistance to backward rotation of user's arms. The hands of the user are positioned in supinated palms-up hand positions to increase the training effect of the backward rotation of the user's arms.

Abstract: A posture correction exercise device is disclosed to aid in correcting the common postural condition of kyphosis lordosis by aiding in the exercise of the spinal erectors to strengthen the erectors to pull the user's spine and torso backward into normal alignment and by exercise of the mid-trapezious, rhomboid and posterior deltoid muscles to strengthen these muscles to pull the user's shoulder blades together and force the shoulders into normal alignment. The device operates by seating the user upon a declined seat to provide increased resistance by gravity to provide increased resistance to backward movement of user's body and rotation of user's arms against tension mounted on tension back and resistance of said tension against backward movement by the user's body wherein hands of the user are positioned in supinated palms-up hand positions by grasping ball grips affixed under the rearward rotational arm positioners of the device at the exterior ends of the arm positioners.

Abstract: A posture correction exercise device is disclosed to aid in correcting the common postural condition of kyphosis-lordosis by aiding in the exercise of the spinal erectors to strengthen the erectors to pull the user's spine and torso backward into normal alignment and by exercise of the mid-trapezious, rhomboid and posterior deltoid muscles to strengthen these muscles to pull the user's shoulder blades together and force the shoulders into normal alignment. The device operates by seating the user upon a declined seat to provide increased resistance by gravity. The device provides resistance to backward movement of user's body and resistance to backward rotation of user's arms. The hands of the user are positioned in supinated palms-up hand positions to increase the training effect of the backward rotation of the user's arms.

Abstract: A posture correction exercise device is disclosed to aid in correcting the common postural condition of kyphosis lordosis by aiding in the exercise of the spinal erectors to strengthen the erectors to pull the user's spine and torso backward into normal alignment and by exercise of the mid-trapezious, rhomboid and posterior deltoid muscles to strengthen these muscles to pull the user's shoulder blades together and force the shoulders into normal alignment. The device operates by seating the user upon a declined seat to provide increased resistance by gravity to provide increased resistance to backward movement of user's body and rotation of user's arms against tension mounted on tension back and resistance of said tension against backward movement by the user's body wherein hands of the user are positioned in supinated palms-up hand positions by grasping ball grips affixed under the rearward rotational arm positioners of the device at the exterior ends of the arm positioners.