A weight arm assembly for use with a weight lifting rack is provided, the weight arm assembly including a mounting bracket configured to be attached to a vertical surface in a fixed position, an arm mount configured to be coupled to the mounting bracket so as to be pivotable about a first axis, a stop member coupled to the arm mount and configured to move between an engaged position to prevent pivoting of the arm mount through interaction with the mounting bracket, and a disengaged position to allow pivoting of the arm mount, and a weight arm configured to be coupled to the arm mount, proximate a first end of the weight arm, so as to be pivotable about a second axis substantially orthogonal to the first axis.

A hamstring exercise device is provided that allows a user to apply variable resistance to the hamstring muscles during exercise. The hamstring exercise device has a user sled, upon which a user may rest, slidably mounted on an angulation slide. The angulation slide is pivotably adjustable to varying degrees of inclination or declination relative to the horizontal. The user's body weight, resistance of the sled toward moving and an optional biasing means all contribute to an adjustable degree of exercise difficulty.

An exercise machine for leg strengthening, the exercise machine comprising a stationary frame; and a thigh support member and an ankle support member coupled to the frame and configured to support a user's thigh and ankle, respectively, during a hamstring curl exercise motion. The thigh support member and the ankle support member are each movable with respect to the stationary frame during the hamstring curl exercise motion, thus facilitating contraction and extension of both of a hamstring and glute of the user during the hamstring curl exercise motion.

A reversible resistance exercise machine for reversing the direction of applied resistance against a movable platform of an exercising machine. The exercise machine has a frame, a carriage movably positioned upon the frame, and a plurality of biasing members. A plurality of first tension connectors are accessible near the first end of the carriage and are adapted for removably attaching selected biasing members near the first end of the carriage to resist motion of the carriage in the first direction. A plurality of second tension connectors are accessible near the second end of the carriage and are adapted for removably attaching selected biasing members near the second end of the carriage to resist motion of the carriage in the second direction. A user selectable amount of force may be applied to the carriage to resist movement in either of the first direction and the second direction.

A safety system for an exercise machine having a plurality of moving internal components. The safety system generally includes a plurality of safety covers that are removably attachable to the machine at various locations to close off openings between the structural members of the machine, enclose the internal spaces of the machine containing internal moving components, and thus prevent an exerciser from coming in contact with the internal components through the openings. The safety covers include one or more side safety covers removably attachable to fixed structural elements and/or a movable platform of the machine along the lateral sides of the machine, one or more top safety covers attached to the machine below and between stationary platforms located at or near opposite longitudinal ends of the machine, and one or more end safety covers removably attachable near the opposite longitudinal ends of the machine.

A pilates exercise system includes an elongated frame extending from a first end to a second end, the first end and the second end both having cord attachments; a platform assembly slidingly engaged with the elongated frame, the platform assembly is configured to slide on a first track and a second track. The platform assembly includes a lower section configured to engage with the first tract and the second track, the lower section is configured to move solely along the length of the elongated frame; a middle section slidingly engaged with the lower section; and an upper section pivotally attached to the middle section. The system further includes a plurality of cords secured to both the first end of the frame and the lower section of the platform assembly and to both the second end of the frame and the lower section of the platform assembly.

A locking and release mechanism for simultaneously positioning an exercise arm in two perpendicular directions, having: (a) a first positioning guide for positioning an exercise arm in a first direction; (b) a second positioning guide for positioning the exercise arm in a second direction; and (c) a locking and release mechanism for locking and releasing the first and second positioning guides, wherein the locking and release mechanism includes: a moveable tab, and one or more positioning pins, wherein movement of the moveable tab locks one two positioning pins into apertures in each of the first and second positioning guides.

A reversible resistance exercise machine for reversing the direction of applied resistance against a movable platform of an exercising machine. The exercise machine has a frame, a carriage movably positioned upon the frame, and a plurality of biasing members. A plurality of first tension connectors are accessible near the first end of the carriage and are adapted for removably attaching selected biasing members near the first end of the carriage to resist motion of the carriage in the first direction. A plurality of second tension connectors are accessible near the second end of the carriage and are adapted for removably attaching selected biasing members near the second end of the carriage to resist motion of the carriage in the second direction. A user selectable amount of force may be applied to the carriage to resist movement in either of the first direction and the second direction.

An exercise apparatus with oscillating tilt system includes a main frame for supporting all the components of the apparatus, a tiltable upstanding support is tilted oscillating, a mechanism which enabling a user of the apparatus to move hands and feet up and down harmoniously, and another mechanism to change an orientation of the user in relation to the vertical line oscillating during the exercise, and consequently changing the direction of the forces affecting different muscles of the user of the apparatus.

The invention herein relates to a variable weight exercise machine comprising a motor driven carriage assembly that moves along a linear path creating a variable resistant force against which the user exerts an opposite force. The chassis body and frame of said device having a design that can be modularly configured in coordination with said carriage element, enabling a plurality of horizontal, vertical, or angular concentric or eccentric exercise movements.