An abdominal exercise device includes a frame comprising top, middle, and bottom frame sections. The middle frame section has a curved shape for creating a teeter-totter movement during exercise. The device includes a headrest connected to the bottom frame section, a plurality of connectors for connecting elastic bands to the frame, and an elastic band connected to at least two connectors. The two ends of the elastic band are connected to two straps. The device creates the teeter-totter movement to exercise the abdominal muscles in response to a person lying down in supine position with the back of the head on the headrest and the feet in the two straps, the person applying a downward pressure with the feet to the straps to move the headrest from a resting position, and the person removing the downward pressure to allow the headrest to go back to the resting position.

Methods and devices for isolating muscle groups during exercise are provided. According to an aspect of the invention, a device includes a first strap that has a first loop shape, a second strap that has a second closed loop shape defining a fixed opening, and a third strap that has a third closed loop shape. A first portion of the first strap is affixed to or integral with the second strap, a second portion of the first strap is arranged to be movable within the fixed opening defined by the second closed loop shape, the second portion of the first strap is affixed to or integral with the third strap, and a first adjustable opening within the first loop shape is configured to be adjusted by changing a relative position of the second portion of the first strap and the fixed opening defined by the second closed loop shape.

An exercise bar assembly includes a pair of rotating grip assemblies, each including a generally planar frame and a hand grip mounted within the frame for rotation within in the plane of the frame. The rotating grip assemblies are attachable to opposite ends of a center bar assembly along the longitudinal axis of the bar assembly. A plate bar assembly is attachable to each of the rotating grip assemblies opposite the center rod, with the plate bar assembly aligned with the longitudinal axis to form a weight lifting bar. A user-selectable elastic band is engageable between the pair of rotating grip assemblies along the longitudinal axis so that the elastic band resists rotation of each hand grip in each of the rotating grip assemblies. The rotating grip assemblies of the exercise bar assembly allow for the full range of motion of the bicep, and the elastic band creates a resistance exercise through the bicep's full range of motion.

A training device includes an elastic training band with an integrated strain sensor and an electronic measuring unit. The training device has a thickening formed at ends of the training band, which locally increases the cross-section of the training band.

In this disclosure a connection arrangement for a trampoline is set out, the arrangement including a mat and a frame. The connection arrangement includes a cord and a security piece, which includes a receiving part and a cord holding part. The cord holding part is configured to receive both ends of the cord and thus forming a loop that includes the cord and the cord holding part. The receiving part receives the cord holding part and one end of the loop through an opening. The loop is configured to wrap around some horizontal part of the frame of the trampoline when the connection arrangement is fitted onto the frame.

An exercise device is provided. The exercise device is formed of a resistance loop wearable over the waist and feet to provide resistance for performing glute bridge exercise. The resistance loop is light weight and portable and allows resistance glute bridge exercise to be performed anywhere a glute bridge exercise may be performed.

The present invention is directed at a novel portable fitness device used for conducting strength training exercises. The device comprises a foldable frame that can hold exercise accessories inside the device while the device is folded. The device further comprises an anti-slide plate and anchor slots wherein at least one resistance band can be locked into the anchor slots. The resistance bands may connect to handles or a bar and the resistance bands may offer up to 300 pounds of resistance. The foldable frame doubles as a carrying case.

Using a combination of jump rope, resistance band and boxing fitness instruments, one can get a robust anaerobic and aerobic exercise experience. However, traditional jump rope equipment requires the operator to be in a location that has ample height and space around them to accommodate the range of the rope being swung around the body. In addition, the ground surface that a traditional jump rope would be hitting may not always be ideal such as carpet, sand, and the like which diminishes the rhythm of the workout. The single unit multi-purpose jump fitness, boxing training and resistance strength device described herein eliminates the need for most of these restrictive considerations as there is no “rope” to jump over when in jump rope workout mode. Rather, the operator swings two specialized end handle units in a “jump rope” fashion while holding adjustable jump handles.

A circular block system that comprises of a circular block that has an inner peripheral side and an outer peripheral side, the peripheral sides have the same height. Opposing channels are defined on the outer peripheral sides. Crossing linear channels are defined on the bottom of the circular block. The crossing linear channels connect the opposing channels. A resistance band is passed through the crossing linear channels when using the circular block system to stretch or exercise. The top of the circular block is a non-slip surface.

A headpiece apparatus comprising of a headband member having a frontal holster, a removable 3D printed component secured to said frontal holster of said headband, and an elastic cord with one end anchored within a ball and the other end entering through said 3D printed component, circumventing said headband before and finally exiting out the said 3D printed component. The said 3D printed component which was created with thermoplastic elastomer, holsters a barrel lock which enables the user to freely change the length of the elastic cord to their preference.