Systems and methods for generating nitric oxide are disclosed. A nitic oxide (NO) generation system includes at least one pair of electrodes configured to generate a product gas containing NO from a flow of a reactant gas; and a controller configured to regulate the amount of nitric oxide in the product gas produced by the at least one pair of electrodes by utilizing duty cycle values of plasma pulses selected from a plurality of discrete duty cycles to produce a target rate of NO production based on an average of discrete production rates associated with each of the plurality of discrete duty cycles.

A self-adhesive foot protector, that cling to the soles of bare feet, socks, or shoes, for the purpose of avoiding the coronavirus, germs and other pathogens, the foot protector having an adhesive layer over a thin material layer that adheres to shoes, socks or bare feet, and having a tab at the heel so the foot protector can be easily removed, the objective is to place a sanitary barrier between a user's feet and the floor alleviating direct contact with public walking surfaces.

A self-adhesive foot protector, that cling to the soles of bare feet, socks, or shoes, for the purpose of avoiding the coronavirus, germs and other pathogens, the foot protector having an adhesive layer over a thin material layer that adheres to shoes, socks or bare feet, and having a tab at the heel so the foot protector can be easily removed, the objective is to place a sanitary barrier between a user's feet and the floor alleviating direct contact with public walking surfaces.

An article of footwear is configured to be worn so as to at least partially cover a wearer's foot. The footwear includes at least one optical fiber on an internal surface of the footwear. The at least one optical fiber is configured to project radiation having a therapeutic wavelength through the at least one optical fiber and toward at least one of the wearer's foot, ankle or leg when the footwear is being worn so as to at least partially cover the wearer's foot.

An article of footwear is configured to be worn so as to at least partially cover a wearer's foot. The footwear includes at least one optical fiber on an internal surface of the footwear. The at least one optical fiber is configured to project radiation having a therapeutic wavelength through the at least one optical fiber and toward at least one of the wearer's foot, ankle or leg when the footwear is being worn so as to at least partially cover the wearer's foot.

An insole for an article of footwear includes an insole support and a side-emitting optical light tube on the insole support member. The insole support member includes a top surface and a bottom surface where the top surface faces towards a wearer’s foot when the insole is positioned in the article of footwear and the article of footwear is worn. The side-emitting optical light tube is configured to project radiation having a therapeutic wavelength through the side-emitting optical tube and toward the wearer’s foot. The side-emitting optical light tube includes a side-emitting optical fiber and a jacket made from a light-transmissive material at least partially surrounding the side-emitting optical fiber.

An insole for an article of footwear includes an insole support and a side-emitting optical light tube on the insole support member. The insole support member includes a top surface and a bottom surface where the top surface faces towards a wearer’s foot when the insole is positioned in the article of footwear and the article of footwear is worn. The side-emitting optical light tube is configured to project radiation having a therapeutic wavelength through the side-emitting optical tube and toward the wearer’s foot. The side-emitting optical light tube includes a side-emitting optical fiber and a jacket made from a light-transmissive material at least partially surrounding the side-emitting optical fiber.

An insole for an article of footwear includes an insole support member and a side-emitting optical fiber fixed with respect to the insole support member. The insole support member is made from a cushioning material and includes a top surface and a bottom surface. The side-emitting optical fiber is configured to project radiation having a therapeutic wavelength along the length of and outwardly through a side of the side-emitting optical fiber and toward a wearer’s foot when the insole is positioned in the article of footwear and the article of footwear is worn. At least a majority of an uppermost surface of the side-emitting optical fiber is disposed beneath a foot-contacting surface that is in contact with the wearer’s foot when the insole is positioned in the article of footwear and the article of footwear is worn.

An insole for an article of footwear includes an insole support member and a side-emitting optical fiber fixed with respect to the insole support member. The insole support member is made from a cushioning material and includes a top surface and a bottom surface. The side-emitting optical fiber is configured to project radiation having a therapeutic wavelength along the length of and outwardly through a side of the side-emitting optical fiber and toward a wearer’s foot when the insole is positioned in the article of footwear and the article of footwear is worn. At least a majority of an uppermost surface of the side-emitting optical fiber is disposed beneath a foot-contacting surface that is in contact with the wearer’s foot when the insole is positioned in the article of footwear and the article of footwear is worn.

In one aspect, a device includes a shoe sole; a set of toe wraps engaged with the shoe sole; and at least one infrared device rotatably connected to a particular toe wrap among the set of toe wraps.