A ball bat configured for impacting a ball. The ball bat extends along a longitudinal axis and includes a unitary bat frame and a pivot joint. The unitary bat frame includes a handle portion and a barrel portion having a distal region. The pivot joint is coupled to the distal region of the barrel portion. The pivot joint movably supports the barrel portion relative to the longitudinal axis such that the distal region of the barrel portion may pivot towards and away from the longitudinal axis about the pivot joint.

A twist-inhibiting collar for sports is disclosed. The twist-inhibiting collar includes a first surface configured to engage with an ulnar edge of a first hand of a player, and a second surface configured to engage with a radial edge of a second hand of the player, the second surface opposite the first surface. The collar also includes an aperture passing through the first surface and the second surface and defined by an interface surface that is coupled to a sport implement held by the player. The twist-inhibiting collar includes an elastomeric material. The sport implement may be a bat having a handle, and the aperture may be sized to fit the handle. The sport implement may be a golf club having a grip, and the aperture may be sized to fit the grip.

A twist-inhibiting collar for sports is disclosed. The twist-inhibiting collar includes a first surface configured to engage with an ulnar edge of a first hand of a player, and a second surface configured to engage with a radial edge of a second hand of the player, the second surface opposite the first surface. The collar also includes an aperture passing through the first surface and the second surface and defined by an interface surface that is coupled to a sport implement held by the player. The twist-inhibiting collar includes an elastomeric material. The sport implement may be a bat having a handle, and the aperture may be sized to fit the handle. The sport implement may be a golf club having a grip, and the aperture may be sized to fit the grip.

A bat, which has a hollow barrel and an internal assembly configured to resist deformation of the hollow barrel, is disclosed. The internal assembly includes multiple rods disposed longitudinally within the hollow barrel. The internal assembly can include a deformable ring having a substantially circular outer wall having a diameter less than an inner diameter of the hollow barrel and multiple holes, with each hole configured to at least partially receive a rod of the multiple rods. The bat can have an end cap including end cap holes extending partially through the end cap, with each end cap hole configured to at least partially receive a rod.

A bat, which has a hollow barrel and an internal assembly configured to resist deformation of the hollow barrel, is disclosed. The internal assembly includes multiple rods disposed longitudinally within the hollow barrel. The internal assembly can include a deformable ring having a substantially circular outer wall having a diameter less than an inner diameter of the hollow barrel and multiple holes, with each hole configured to at least partially receive a rod of the multiple rods. The bat can have an end cap including end cap holes extending partially through the end cap, with each end cap hole configured to at least partially receive a rod.

An active suspension orthotic support system is disclosed. The suspension orthotic support system comprises at least one variable resistance beam extending from a heel section to a mid-arch section of the footwear, wherein rotation of the variable resistance beam from a first position to a second position causes a resistance provided by the variable resistance beam to vary between a minimum resistance to a maximum resistance.

An active suspension orthotic support system is disclosed. The suspension orthotic support system comprises at least one variable resistance beam extending from a heel section to a mid-arch section of the footwear, wherein rotation of the variable resistance beam from a first position to a second position causes a resistance provided by the variable resistance beam to vary between a minimum resistance to a maximum resistance.

A ball bat may include a barrel wall formed at least in part by a plurality of concentric first composite laminate layers and a plurality of second composite laminate layers oriented transverse to the first composite laminate layers. In some embodiments, a ball bat may include composite material with a plurality of fibers oriented along a direction transverse to the longitudinal axis of the bat.

A ball bat may include a barrel wall formed at least in part by a plurality of concentric first composite laminate layers and a plurality of second composite laminate layers oriented transverse to the first composite laminate layers. In some embodiments, a ball bat may include composite material with a plurality of fibers oriented along a direction transverse to the longitudinal axis of the bat.

A protective cover is configured to protect a grip end of a bat. For example, a baseball bat, a softball bat, a cricket bat or other bat. The protective cover has a substantially cylindrical body and an open end for receiving the grip end of the bat. In some embodiments, the grip end of the bat is inserted into the open top end of the body and the body is slid onto and over the grip end to couple the protective cover with the bat. Alternatively, the body may be placed on the grip end of the bat and zipped and/or otherwise closed to couple with and protect the grip end of the bat. The protective cover protects the grip end of the bat from damage as well as provides cushion to prevent damage to external objects and injury to other individuals when the bat is not being used.