A lap counter (10) for use by a swimmer (Q), has a case (11), a strap (12) for attaching the case onto the swimmer (Q), and a Compass sensor (110) housed in the case (11) for providing an output signal which changes as between opposite directions along which the swimmer (Q) swims back and forth. There is also an operating circuit (100) that includes a processor (120) programmed to distinguish the change in the output signal of the compass sensor (110) as between said opposite directions to thereby identify a reversal in direction of the swimmer (Q) and then to count the number of laps each based on two successive reversals in direction, The processor (120) may also be programmed to distinguish the change in the compass sensor output signal to detect a rise above an upper threshold and a subsequent fall below a lower threshold, or vice versa, to thereby identify a wave in the output signal representing a swimming stroke of the swimmer (Q) and count the strokes.

A swim stroke monitor and a process for analysing a swimmer's swim strokes which uses a pressure sensor and analyses the pressure signal to determine the number of strokes.

Disclosed herein is a training fin for assisting a wide variety of swimmers to gain a superior cardiovascular workout with minimal risk of injury. The fin has a proximal end and a distal end. Additionally, the fin has a dorsal section and a plantar section and defines an opening for insertion of a user's foot adjacent the proximal end. The dorsal section has proximal and distal ends aligned with the proximal and distal ends of the fin. The dorsal section is solid from the proximal to distal ends. The dorsal section has side sections. The plantar section has proximal and distal ends aligned with the proximal and distal ends of the fin and dorsal section. The dorsal and plantar sections are joined, at least, at the proximal and side sections. The dorsal surface includes a fluid separator for increasing hydrodynamic design and function. In an exemplary embodiment, the fin defines a boot, made from pliable material. The pliable material being of varying thicknesses. The boot has a foot pocket and a blade portion. The foot pocket is sized and shaped for removable attachment to the foot. The blade portion is sized and shaped for swim training purposes and for transmitting propulsive forces created by a swimmer's leg to the foot and fin. The blade portion has a defined thickness. And, the foot pocket has a constant thickness and being thinner than the thickness of the blade portion.

A stroke information measuring device according to the present invention comprises an imaging section 4 capturing image data of every predetermined time of a swimmer who is swimming, a pixel extracting section 18 extracting pixels corresponding to the body image, a profile data generating section 20 performing the integration of the body image in a predetermined direction and generating the profile data, an end point extracting section 24 extracting the end point of each profile data, a stroke point extracting section 26 extracting the stroke point corresponding to the predetermined posture of the swimmer based on the periodic movement of each end point, and a calculating section 28 calculating the stroke information based on the stroke point.

Disclosed herein is a training fin for assisting a wide variety of swimmers to gain a superior cardiovascular workout with minimal risk of injury. The fin has a proximal end and a distal end. Additionally, the fin has a dorsal section and a plantar section and defines an opening for insertion of a user's foot adjacent the proximal end. The dorsal section has proximal and distal ends aligned with the proximal and distal ends of the fin. The dorsal section is solid from the proximal to distal ends. The dorsal section has side sections. The plantar section has proximal and distal ends aligned with the proximal and distal ends of the fin and dorsal section. The dorsal and plantar sections are joined, at least, at the proximal and side sections. The dorsal surface includes a fluid separator for increasing hydrodynamic design and function. In an exemplary embodiment, the fin defines a boot, made from pliable material. The pliable material being of varying thicknesses. The boot has a foot pocket and a blade portion. The foot pocket is sized and shaped for removable attachment to the foot. The blade portion is sized and shaped for swim training purposes and for transmitting propulsive forces created by a swimmer's leg to the foot and fin. The blade portion has a defined thickness. And, the foot pocket has a constant thickness and being thinner than the thickness of the blade portion.

La présente invention a pour objet des plaquettes palmaires destinées à être fixées aux mains des utilisateurs en milieu aquatique.

Chacune des plaquettes est constituée d'une paroi (1) de forme adaptée sur laquelle repose la main et qui est dotée de moyens de fixation (2-3).

L'invention se caractérise en ce que au moins l'une des plaquettes est dotée d'au moins un capteur (4) dont le signal est transmis à un microprocesseur capable de calculer un certain nombre de paramètres qui sont mémorisés et qui peuvent s'afficher sur un écran de lecture, le microprocesseur, son électronique et l'écran étant portés par la palette.

A timing system for swimming race which surely records, display, and print the time of race is disclosed. To provide a mask circuit in a control device which controls each signal, enables the timing system to exactly perceive a swimmer's touch. Furthermore, a top edge panel is provided on a touch panel so as to perceive a swimmer's touch at an oblique angle. A plurality of lane boxes are provided for backup of a touch signal and a starting block signal, in case of failure and misoperation of the control device. Further, a visual display device is provided in order that a swimmer can recognize a starting signal visually.

A diving and swimming aid comprises a roller (27) which may be diabolo shaped and which is mounted for rotation in two side frames 14 secured to a surrounded 11 of a swimming pool. A user can stand on the pool surround surface 12, lean on the roller 27; the rotation of the roller 27 helps to carry the user into the water 10. The height and fore-and-aft position of the roller can be adjusted by bolts 29, 24 engaging in slots 20, 19 and the roller axis 26 can be placed in selected slot 25. There may be several rollers 27. The roller 27 can be replaced by an endless belt rotatable on spaced rollers, one of which can be adjustable to vary the angle of descent of a user.

An activity monitor that is worn by a user for monitoring water-based activities. The activity monitor includes at least one motion sensor, a memory, a battery to power the monitor and a processor. The processor is operable to run an algorithm to calculate activity data based on an output from the motion sensor and to save the activity data to the memory. The monitor has a sleep mode in which the monitor consumes little or no battery power, a standby mode in which power consumption is higher than the sleep mode but in which the processor is not operating to calculate activity data and an active mode in which the processor is operating to calculate activity data. The activity monitor is responsive to a first trigger to switch from sleep mode to standby mode and responsive to a second, different trigger to switch from standby mode to active mode.