A swim training device includes: (a) a platform having a top side and a bottom side, and extending longitudinally from a leading edge to a trailing edge and extending laterally from a left side to a right side; and (b) a hands pocket located on the top side of the platform and including a hands entry opening facing toward the trailing edge of the platform, wherein: (i) the hands pocket is constructed to receive a user's hands through the hands entry opening so that the user's hands are located in the hands pocket in a generally extended configuration; (ii) the hands pocket is constructed to hold the user's hands in place in the generally extended configuration against the top side of the platform; and (iii) the hands pocket is constructed to resist longitudinal and lateral movement of the user's hands relative to the platform when the user's hands are located within the hands pocket.

Automatic swimming analysis and nearly immediate feedback on a user device is disclosed. A sensor placed on a swimmer's waistline instantaneously measures data of the swim, allows to upload this data to a cloud system performing immediate analysis using algorithms. The cloud system provides feedback which helps determine proper (or improper) swimming techniques, comparing patterns to own past swims or to professional swimmers. The sensor enables stroke improvement with output including graphs, single numerical values, and detailed single-stroke data. The output provides both easy to understand metrics for amateur swimmers as well as more technical analysis options for advanced users. Metrics for amateurs can include swim symmetry analysis, speed consistency analysis, and stroke consistency analysis. More technical/detailed information includes comparison of strokes of each arm to the other, comparison of strokes made by left and right arms, mathematical analyses of strokes, and average, maximum, minimum, and instantaneous speeds.

Automatic swimming analysis and nearly immediate feedback on a user device is disclosed. A sensor placed on a swimmer's waistline instantaneously measures data of the swim, allows to upload this data to a cloud system performing immediate analysis using algorithms. The cloud system provides feedback which helps determine proper (or improper) swimming techniques, comparing patterns to own past swims or to professional swimmers. The sensor enables stroke improvement with output including graphs, single numerical values, and detailed single-stroke data. The output provides both easy to understand metrics for amateur swimmers as well as more technical analysis options for advanced users. Metrics for amateurs can include swim symmetry analysis, speed consistency analysis, and stroke consistency analysis. More technical/detailed information includes comparison of strokes of each arm to the other, comparison of strokes made by left and right arms, mathematical analyses of strokes, and average, maximum, minimum, and instantaneous speeds.

An aquatic exercise apparatus for applying a resistive force to an exercising swimmer, the apparatus includes a bracket mounted to a vertically oriented surface located above a pool of water, a container, an operational assembly comprising at least one upper pulley attached to the bracket and at least one lower pulley attached to the container, a cord passing through the at least one upper pulley and the at least one lower pulley, and a fastener configured to attach to an exercising swimmer, where the fastener is attached to a free end of the cord, and where pulling the free end of the cord moves the container upward against gravity.

An aquatic exercise apparatus for applying a resistive force to an exercising swimmer, the apparatus includes a bracket mounted to a vertically oriented surface located above a pool of water, a container, an operational assembly comprising at least one upper pulley attached to the bracket and at least one lower pulley attached to the container, a cord passing through the at least one upper pulley and the at least one lower pulley, and a fastener configured to attach to an exercising swimmer, where the fastener is attached to a free end of the cord, and where pulling the free end of the cord moves the container upward against gravity.

Technologies are described for aquatic resistance training. An aquatic resistance line may be deployed across the surface of a swimming pool. An aquatic resistance device may be deployed to ride along the resistance line when pulled by a swimmer. The aquatic resistance device comprises offset compression tensioners, each with a wedge-like geometry and a channel for the resistance line. The housing of the aquatic resistance device positions adjacent pairs of the offset compression tensioners into alternating orientation to one another. A mechanical compressor within the aquatic resistance device can force the offset compression tensioners against one another along the axis of the resistance line causing the alternating wedge-like geometries of the offset compression tensioners to force the offset compression tensioners off-axis from one another orthogonal to the aquatic resistance line into a configuration operable to adjustably grip the aquatic resistance line thus providing a resistive training load to the swimmer.

Technologies are described for aquatic resistance training. An aquatic resistance line may be deployed across the surface of a swimming pool. An aquatic resistance device may be deployed to ride along the resistance line when pulled by a swimmer. The aquatic resistance device comprises offset compression tensioners, each with a wedge-like geometry and a channel for the resistance line. The housing of the aquatic resistance device positions adjacent pairs of the offset compression tensioners into alternating orientation to one another. A mechanical compressor within the aquatic resistance device can force the offset compression tensioners against one another along the axis of the resistance line causing the alternating wedge-like geometries of the offset compression tensioners to force the offset compression tensioners off-axis from one another orthogonal to the aquatic resistance line into a configuration operable to adjustably grip the aquatic resistance line thus providing a resistive training load to the swimmer.

According to a first embodiment of the present application, Applicant discloses an aquatic exercise device for assisting a swimmer to practice swimming in place. The device comprises: a pair of tines, each tine comprising an upper end and a lower end; a fork root attached to the upper ends of the pair of tines; and a suspension element attached to and suspending the fork root. The suspension element suspends the fork root and the upper ends of the tines above water comprising a practice area, the lower ends of the tines are submerged in the water of the practice area, and the pair of tines operative to maintaining a position of the swimmer in the practice area.

According to a first embodiment of the present application, Applicant discloses an aquatic exercise device for assisting a swimmer to practice swimming in place. The device comprises: a pair of tines, each tine comprising an upper end and a lower end; a fork root attached to the upper ends of the pair of tines; and a suspension element attached to and suspending the fork root. The suspension element suspends the fork root and the upper ends of the tines above water comprising a practice area, the lower ends of the tines are submerged in the water of the practice area, and the pair of tines operative to maintaining a position of the swimmer in the practice area.

The present disclosure relates to systems and methods for balance index determination. For example, a wearable apparatus may have at least one gyroscope configured to measure angular velocity about a first axis; at least one inertial measurement device (IMU) configured to measure deviation along a second axis and a third axis; at least one memory storing instructions; and at least one processor configured to execute the instructions to: receive angular velocity measurements over a period of time from the at least one gyroscope; receive deviations from the second axis and from the third axis over the period of time from the at least one IMU; weight the deviations based on directions associated with the deviations; and generate a composite balance index based on the angular velocity measurements, the weighted deviations from the second axis, and the weighted deviations from the third axis.