A yoga or exercise stool may have a seat portion and a base portion; the base portion having window slot(s) formed in a front side, a rear side, or both; a handle slot formed at least in one side, such as the front side, at or near the top; horizontal gripping slot(s) formed in the left side, the right side, or both, at or near the top; and vertical gripping slot(s) formed in the left side, the right side, or both, at or near the bottom; advantageously four such slots being formed near the bottom corners of the left and right sides. A yoga stool also may have a base portion, and a seat portion on top of the base portion, wherein the seat portion has an internal firm support member such as a solid slat, and preferably softer material such as foam rubber surrounding the support member, at least on the left and right sides. The yoga stool may include opposed side elements joined by a rear element and front element with a removable top element that may be U-Shaped to allow for additional poses or exercises.

A methane conversion device comprises a reaction chamber; a sensor for detecting the presence of methane; blowing means for directing external gasses Into the reaction chamber when the sensor detects the presence of methane above a predetermined threshold; conversion means that are configured to oxidise methane; and positioning means for positioning the device on an animal.

A chair according to the present invention has a reference position P located midway in a front-back direction in a movable range of a seat 2. The chair includes a return force generation mechanism 4 configured to generate a return force in a direction to return the seat 2 moved from the reference position P at least in the front-back direction to the reference position P. The return force generation mechanism 4 includes an elastic member 40 configured to increase the return force in the direction to return the seat to the reference position P as the amount of movement of the seat from the reference position P increases.

The present invention relates to ergonomic supports in medical environment. In order to provide improved ergonomic support while providing a minimum impact of the user's activities, an ergonomic support device (10) for users in medical environment is provided. The support device comprises a seating support arrangement (14), an X-ray shielding arrangement (18) and a base support structure (12). The base support structure provides mechanical support for the seating support arrangement and the X-ray shielding arrangement. The seating support arrangement comprises a seat support surface (16) that is configured for supporting a buttocks area of a user. The X-ray shielding arrangement comprises at least one X-ray shield (20) that is configured for shielding at least a part of an X-ray radiation to which a user is exposed to while supported by the support surface. The at least one X-ray shield is movably mounted to the base support structure to be adjustable in its position relative to a user at least partly resting on the seat support surface.

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 seat apparatus includes a base having a central ridge structure on the top of the base. The central ridge structure is round on the top and slopes downward from front to back. A secondary ridge structure may be included on top of the central ridge structure. Using the seat apparatus, a person with a hemorrhoid condition can sit on the seat apparatus, and using their own body weight, create pressure between the affected area and the central ridge structure. The pressure bias the hemorrhoid to be repositioned in the user's body, relieving discomfort and, with long term use, can improve sphincter control to better prevent hemorrhoid conditions.

A stool can include a base including at least three legs with each leg including a non-slip member and a spring-loaded caster. A lower helical spring may be coupled to the base. A connecting member may comprise a first end coupled to the lower helical spring, a second end opposite the first end, and a central axis that extends between the first end and the second end. An upper helical spring may be coupled to the second end of the connecting member. A rotational joint may be coupled to the upper helical spring. A seat may be coupled to the rotational joint and configured to rotate about the central axis of the connecting member. The base, lower helical spring, upper helical spring, rotational joint, and seat may share a common vertical axis with the central axis of the connecting member when at rest.

A wobble base provides a curved floor-contacting surface with one or more alignment posts that align the wobble base to the bottom of a seating platform and one or more holes separate from the alignment posts through which one or more fasteners may be placed to attach the wobble base to the seating platform, thereby providing a wobble stool. The wobble base can be configured to convert an existing stool into a wobble stool by replacing one or more floor-contacting members with the wobble base. In a second embodiment, a seating platform, such as a stool, is provided with both traditional floor-contacting members, such as feet or casters, and with a wobble base that allows the traditional floor-contacting members to be removed and replaced with the wobble base, and allows the wobble base to be removed and replaced with the traditional floor-contacting members.

An ergonomic massage chair is configured with back and bottom structures held up by a pair of legs. The various support bars and structure of the ergonomic massage chair may be comprised of, in typical implementations, metal, but plastic and other suitable structures are also possible. The back structure has perimeter support bars that form the base of the back support, and horizontal support bars extend from a left perimeter support bar to a right perimeter support bar. The bottom structure likewise has a perimeter support bar that forms the structure of the bottom. A horizontal support bar extends from a left perimeter support bar to a right perimeter support bar. Nodes are attached to the ergonomic chair, and stability balls fit inside openings created by the support bars and nodes. A cover having memory foam pillows therein encapsulates the chair to provide users with customized setups that suit them.

A squatting stool may feature two opposed support plates with at least one variable width coil springs therebetween. The larger diameter portion of the springs should be located towards the bottom of the stool, thereby positioning the lower spring constant downward and allowing for collapse of the springs from the bottom upward.