A watersports paddle includes an elongated handle body having a first material, a biased member having a second material more flexible than the first material such that the biased member is more flexible than the elongated handle body, and a paddle blade coupled to the biased member opposite the elongated handle body. The biased member deforms when a force is applied to the biased member with the elongated handle body by pulling the paddle blade through water and reforms when the force is not applied to the biased member by the elongated handle body to store and release energy during use of the watersports paddle. The biased member may be a substantially planar leaf spring or a bowed leaf spring.

A skateboard with a removable hub that can be attached and detached from a wheel of a skateboard, comprising a skateboard deck rollably supported by one or more wheels and attached to the wheels via one or more trucks, with each hub removably attached to the wheel with a key.

The present invention provides a method and a device for modulating one's motion in a sport or recreational activity such as inline skating, skateboarding or snowboarding. The device comprises a collapsible or retractable base having a distal end and a proximal end; and a removably attached motion modulating element on the proximal end and/or the distal end of the base.

A power and stabilizing apparatus for rolling or sliding-based recreational activities is disclosed. The apparatus may include a shafted body coupled to a biased member. The biased member may be a bowed biased member or any other biased member configured to store and release energy during use of the apparatus. The apparatus may also include a shoe coupled to the biased member opposite the body, the shoe having a traction element coupled thereto. The body may be a shafted telescoping body configured to lock in an extended position and lock in a retracted position. The body may be coupled to the bowed biased member with a coupling member having a first leg coupled to the body and a second leg coupled to the bowed biased member.

Exemplary embodiments are directed to pusher tips including a body with a top section and a base section. The top section can be configured for attachment to a paddle shaft and the base section can be configured for placement against a surface. The base section can define a substantially convex, continuous and planar surface. Exemplary embodiments are also directed to pusher tip systems and paddle shafts.

The invention discloses a support for a goalkeeper skate and a goalkeeper skate. A support for a goalkeeper skate comprises a protrusion arrangeable on a medial (M) side of the goalkeeper skate. A goalkeeper skate comprising said support is also disclosed. The support and the goalkeeper skate disclosed herein may be used for aligning joints in lower extremities including hip, knee, and ankle joints of an ice hockey or roller hockey goalkeeper.

A roller skate sensor insert device is disclosed, which is a training device for roller skaters. The roller skate sensor insert device comprises an insert component that is configured as a flexible sock-like structure which would fit inside a user's roller skate boot. The insert component is shaped to completely encase a user's foot, much like a sock would. The insert component comprises a plurality of sensors which would be positioned at different pressure points along a user's foot and ankle. Thus, when placed in a pair of roller skates, the user would feel vibration on a specific pressure point on their foot, instructing them on where to apply pressure for a designated move. Further, the sensors collect data to be relayed to a mobile application on a paired smartphone.