The present invention relates to seat systems, and more specifically to seat systems suitable for supporting users sitting in a cross-legged or kneeling position during activities such as meditation. Sitting closer to the ground, cross-legged, and/or kneeling enables the brain to easily enter a parasympathetic mode, providing users of the seat system a greater sense of calmness. The Multi-Angle Knee blocks (MAKs) offer a greater level of hip support for users.

A sport chair includes a seating surface operative to support a user and a processor. The processor is configured to detect the presence of a user on the seating surface, establish communication with an article of apparel on the body of the user, receive an indication of a physiological parameter of the user from a biometric sensor provided with the article of apparel, and output the physiological parameter to a display.

A seat assembly is provided having a seat bottom and at least one bladder mounted to the seat bottom adjacent a forward surface and filled with a compressible material. The bladder is moveable between a storage position and at least one leg-support position. A valve is in fluid communication with the at least one bladder. A vacuum pump in fluid communication with the valve. The compressible material is compressed under vacuum pressure generated by the pump when the valve is closed in the storage position. The compressible material is expanded when the valve is open to move the at least one bladder to the leg-support position.

An ergonomic chair has a back support member and means for arranging and supporting legs of the user in an asymmetric configuration, with a first leg extending in front of a body of the user and a second leg aligned with or extending behind the body of the user. An angle between the first and second legs in a side view can be at least 30 degrees. The means for arranging and supporting legs can comprise one or more fixed structures that support the first leg in a first orientation, or one or more dynamic structures that can be positioned by the user to support the first leg in a first orientation. In some embodiments, with the legs of the user in the asymmetric configuration, a centerline of the user is offset from a centerline of the back support member with respect to a lateral direction.

A chair includes a seat (2) and also includes a pair of thigh support elements (17) pivotal n a generally downwardly direction about front pivot axes (20) from a first state forming with a central seat element (15) a substantially common plane, to a second downwardly extending state. The elements (17) are also pivotal about second pivot axes in a generally rearwardly direction for urging the user's thighs away from each other for stretching the adductor muscles. Foot support members (49) extend transversely and sidewardly on respective opposite sides of the chair (1) from a support element (46) for supporting the foot during a stretching exercise with the corresponding thigh of the subject extending downwardly from the seat (14) and the lower leg extending from the knee in a upwardly inclined direction to the foot support member (49) for stretching the quadriceps and the hip flexor muscles of the subject.

A breast pumping assembly for a forward-leaning chair is provided. The assembly allows for a breast pumping mother to be optimally positioned and comfortable while pumping breast milk, leading to quicker and more effective pumping. The breast pumping assembly and the chair are adjustable to adapt for different sized mothers and changing body size and shape as pumping progresses.

A seat assembly is provided having a seat bottom and at least one bladder mounted to the seat bottom adjacent a forward surface and filled with a compressible material. The bladder is moveable between a storage position and at least one leg-support position. A valve is in fluid communication with the at least one bladder. A vacuum pump in fluid communication with the valve. The compressible material is compressed under vacuum pressure generated by the pump when the valve is closed in the storage position. The compressible material is expanded when the valve is open to move the at least one bladder to the leg-support position.

A chair for providing seating support to a user and for providing ways for the user to perform exercises. The chair includes a back support that is flexible such that when a force is applied to it by the user's body, the back support bends. The back support may be configured to adapt to the curvature of the user's spine when the user is seated in the chair. The back support may further be configured such that the user can rotate the back support by rotating the user's upper body.

A tilting seat for operators in a controlled environment, particularly for surgeons and the like, comprising a saddle, a chest support, a forehead support and a leg support connected to a base standing on the ground, such that the saddle, the chest support, the forehead support and the leg support are integrally movable with rotation about a horizontal-axis joint placed below the saddle, keeping the space over the joint free from movable elements while in use, guaranteeing the substantial lack of contamination in such space.

A breast pumping assembly for a forward-leaning chair is provided. The assembly allows for a breast pumping mother to be optimally positioned and comfortable while pumping breast milk, leading to quicker and more effective pumping. The breast pumping assembly and the chair are adjustable to adapt for different sized mothers and changing body size and shape as pumping progresses.