An improved swim noodle system is described. The system has a first interlocking swim noodle including a first central core defining a first longitudinal axis coaxial with the first central core and a first periphery disposed about the first central core. The first elongated swim noodle further comprises alternating nodes and alcoves disposed about an entirety of the first periphery. The first nodes diverge outwardly from the first central core and extend longitudinally generally parallel to the first longitudinal axis. The first alcoves converge outwardly from the first central core and extend longitudinally generally parallel to the first longitudinal axis. The first nodes and the first alcoves are arranged to mate by resistance fit with the second elongated swim noodle.

An improved swim noodle system is described. The system has a first interlocking swim noodle including a first central core defining a first longitudinal axis coaxial with the first central core and a first periphery disposed about the first central core. The first elongated swim noodle further comprises alternating nodes and alcoves disposed about an entirety of the first periphery. The first nodes diverge outwardly from the first central core and extend longitudinally generally parallel to the first longitudinal axis. The first alcoves converge outwardly from the first central core and extend longitudinally generally parallel to the first longitudinal axis. The first nodes and the first alcoves are arranged to mate by resistance fit with the second elongated swim noodle.

A swimming instruction system including a buoyant kickboard, an optical projector disposed on the buoyant kickboard to project user-readable information onto the buoyant kickboard, a limb piece comprising a limb sensor, and a controller to receive sensor data from the wrist piece and/or the ankle piece and transmit user-readable information to the optical projector. The swimming instruction system analyzes sensor data from limb sensors to detect a limb motion, compare a detected limb motion with a predicted limb motion, generate a user advice, transmit to the optical projector user-readable information including the user advice, and display the user advice using the optical projector. The swimming instruction system is used in a method of teaching a user to swim.

A swimming instruction system including a buoyant kickboard, an optical projector disposed on the buoyant kickboard to project user-readable information onto the buoyant kickboard, a limb piece comprising a limb sensor, and a controller to receive sensor data from the wrist piece and/or the ankle piece and transmit user-readable information to the optical projector. The swimming instruction system analyzes sensor data from limb sensors to detect a limb motion, compare a detected limb motion with a predicted limb motion, generate a user advice, transmit to the optical projector user-readable information including the user advice, and display the user advice using the optical projector. The swimming instruction system is used in a method of teaching a user to swim.

The present invention relates to a base for a modular exercise system comprising: a ground element for locating the base on a surface; a resistance apparatus mounted on the ground element; an attachment means for receiving and connecting an interchangeable exercise device to the base; and at least one first sensor which is operative to detect and identify the interchangeable exercise device when connected to the base and to communicate with a processor when the resistance apparatus is engaged with a drive mechanism on the interchangeable exercise device.

A modified kickboard floatation device having a body which includes a distal portion and a proximal portion. The distal portion includes a pair of mirror image handles which are each positioned adjacent to an edge of the body and distal aperture which passes through the body. The proximal portion includes a pair of elongated longitudinal members which each extend from the distal portion in parallel with one another and are intersected by an elongated cross member. In this regard, the cross member extends both between the longitudinal members and outwardly beyond them so as to extend out from both sides of the body.

A modified kickboard floatation device having a body which includes a distal portion and a proximal portion. The distal portion includes a pair of mirror image handles which are each positioned adjacent to an edge of the body and distal aperture which passes through the body. The proximal portion includes a pair of elongated longitudinal members which each extend from the distal portion in parallel with one another and are intersected by an elongated cross member. In this regard, the cross member extends both between the longitudinal members and outwardly beyond them so as to extend out from both sides of the body.