An article of footwear is provided and includes an upper, a fluid-filled chamber including a first portion in contact with the upper in a first region, and a midsole including a first portion disposed between the fluid-filled chamber and the upper in a second region.

A method for manufacturing stretch resistant plantar fascia support system is provided. The stretch resistant plantar fascia support system is adhesively applied to the foot of a patient for providing relief from plantar fasciitis. A portion of the stretch resistant plantar fascia support system is adhesively attached to the bottom surface of the foot for reducing stress on the plantar fascia.

Aspects relate to a portable device that may be used to identify a critical intensity and an anaerobic work capacity of an individual. The device may utilize muscle oxygen sensor data, speed data, or power data. The device may utilize data from multiple exercise sessions, or may utilize data from a single exercise session. The device may additionally estimate a critical intensity from a previous race time input from a user.

An orthotic support assembly includes a first orthotic support that is attachable to a sole of a shoe to abut a support surface upon which a user is walking. The first orthotic support has a rounded profile thereby facilitating the sole of the shoe to roll on the first orthotic support when the user walks. A second orthotic support is attachable to the sole of the shoe and the second orthotic support has a rectilinear profile to inhibiting the sole of the shoe from rocking on the first orthotic support when the user walks. A third orthotic support is attachable to the sole of the shoe and the third orthotic support has a trapezoidal profile. In this way the sole of the shoe is oriented level on the ground to facilitate a user with an unstable foot to walk in a level orientation.

A Sandal with Heel Strap with several orthotic benefits is provided. The sandal has a unique combination of features what will be useful for the treatment and prevention of plantar fasciitis. The Sandal with Heel Strap has a medial split in the medial heel section of the sole. The medial split is designed so that it absorbs more energy than the other parts of the heel and promotes a lateral to medial rotation of the heel portion during the wearer's gait. In a preferred embodiment, the sandal will include a rocker bottom sole and raised bed for the big toe that begins its rise at the metatarsophalangeal joint. In an additional preferred embodiment, the sole of the sandal will also include a metatarsal bar that supports the traverse arch and an upward bend that begins to rise from the sole at a point just forward of the end of the medial split and intersects with the metatarsal bar.

Presented are footwear sole structures with foot-cushioning insoles movably mounted onto impact-attenuating midsoles, methods for making/using such sole structures, and footwear fabricated with such sole structures. A multilayered sole structure assembly includes an insole movably mounted on a midsole. The midsole is formed with a first compressible material and includes opposing upper and lower midsole surfaces, multiple protrusions projecting from the upper midsole surface, and multiple pockets recessed into the upper midsole surface and interleaved with the midsole protrusions. The insole, which is formed with a second compressible material distinct from the first compressible material, includes opposing upper and lower insole surfaces, multiple protrusions projecting from the lower insole surface and interleaved with the midsole protrusions, and multiple pockets recessed into the lower insole surface and interleaved with the insole protrusions. Each midsole protrusion nests within a respective insole pocket, while each insole protrusion nests within a respective midsole pocket.

An article of footwear includes an upper and a sole structure with a sole member. The sole member can be manufactured using a system that modifies the forefoot cushioning of the sole member over a series of footwear purchases. The modifications can be configured to correspond to a customer's evaluation of the forefoot cushioning previously purchased. The sole member can include a set of apertures or incisions that are formed along various surfaces of the sole member to adjust the cushioning characteristics of the sole member.

An article of footwear includes an upper and a sole structure with a sole member. The sole member can be manufactured using a system that modifies the forefoot cushioning of the sole member over a series of footwear purchases. The modifications can be configured to correspond to a customer's evaluation of the forefoot cushioning previously purchased. The sole member can include a set of apertures or incisions that are formed along various surfaces of the sole member to adjust the cushioning characteristics of the sole member.

An article of footwear includes an upper and a sole structure with a sole member. The sole member can be manufactured using a system that modifies the heel cushioning of the sole member over a series of footwear purchases. The modifications can be configured to correspond to a customer's evaluation of the heel cushioning previously purchased. The sole member can include a set of apertures that are formed along various surfaces of the sole member to adjust the cushioning characteristics of the sole member.

An article of footwear includes an upper and a sole structure with a sole member. The sole member can be manufactured using a system that modifies the heel cushioning of the sole member over a series of footwear purchases. The modifications can be configured to correspond to a customer's evaluation of the heel cushioning previously purchased. The sole member can include a set of apertures that are formed along various surfaces of the sole member to adjust the cushioning characteristics of the sole member.