A movable chair mechanism, a chair frame and a chair are provided. The movable chair mechanism includes a chair component, an intermediate transmission component and an installation component. The intermediate transmission component includes three transmission connecting rods. The first transmission connecting rod and the third transmission connecting rod are pivotally connected to the chair component respectively, and ends of the second transmission connecting rod are pivotally connected to the first transmission connecting rod and the third transmission connecting rod respectively. The installation component includes a fixing connecting rod, a first swing arm and a second swing arm. The fixing connecting rod is fixed to a base, ends of the first swing arm are pivotally connected to the first transmission connecting rod and the fixing connecting rod respectively, and ends of the second swing arm are pivotally connected to the third transmission connecting rod and the fixing connecting rod respectively.

A stool and desk support system. The system includes a stool base and a desk support surface. A support member may connect the desk support surface to the stool base and support the desk support surface above a floor surface. The stool base may include a stool seat surface and a rocking mechanism opposite the stool seat surface. The desk support surface may be connected to a desk support base by a neck extending from the desk support base. The stool base may include an upper stool base frame and a lower stool base frame. The upper stool base frame may be height adjustable with respect to the lower stool base frame. The desk support base may connect to the upper stool base frame, permitting coinciding height adjustment of the desk support surface and the upper stool base frame.

A stool and desk support system. The system includes a stool base and a desk support surface. A support member may connect the desk support surface to the stool base and support the desk support surface above a floor surface. The stool base may include a stool seat surface and a rocking mechanism opposite the stool seat surface. The desk support surface may be connected to a desk support base by a neck extending from the desk support base. The stool base may include an upper stool base frame and a lower stool base frame. The upper stool base frame may be height adjustable with respect to the lower stool base frame. The desk support base may connect to the upper stool base frame, permitting coinciding height adjustment of the desk support surface and the upper stool base frame.

A chair support shell has an integral back portion, seat portion, and joining portion between the back portion and the seat portion. At least a major portion of the support shell comprises a compliant structure, the compliant structure having a plurality of cells interconnected by a plurality of resilient members. The compliant structure provides compliance in the seat portion, compliance in the back portion, and compliance in the joining portion. The compliant structure enables recline of the back portion relative to the seat portion.

A chair support shell has an integral back portion, seat portion, and joining portion between the back portion and the seat portion. At least a major portion of the support shell comprises a compliant structure, the compliant structure having a plurality of cells interconnected by a plurality of resilient members. The compliant structure provides compliance in the seat portion, compliance in the back portion, and compliance in the joining portion. The compliant structure enables recline of the back portion relative to the seat portion.

A method for generating a rebounding motion between a person and a stationary surface comprising the steps of providing a rebounding device that includes a front member, a rear member, and a spring mechanism positioned between the front member and the rear member for allowing the front member and rear member to move toward and away from one another. The method further includes the steps of positioning the rear member against the stationary surface and the front member adjacent to an upper body of the person and the stationary surface, and applying pressure to the rebounding device through the upper body such that the upper body moves toward from the stationary surface while a lower body of the person remains in place.

A method for generating a rebounding motion between a person and a stationary surface comprising the steps of providing a rebounding device that includes a front member, a rear member, and a spring mechanism positioned between the front member and the rear member for allowing the front member and rear member to move toward and away from one another. The method further includes the steps of positioning the rear member against the stationary surface and the front member adjacent to an upper body of the person and the stationary surface, and applying pressure to the rebounding device through the upper body such that the upper body moves toward from the stationary surface while a lower body of the person remains in place.

An active sitting chair is provided that encourages a sitter/user to sit actively by requiring balance adjustments and core engagement. The active sitting chair can be efficiently produced while being relatively sturdy and lightweight. The main body may be a monocoque shell that includes a rounded lower portion that contacts the surface the chair is on and promotes wobble of the chair when a sitter is seated on the chair. The chair may also include built-in handles for ease of lifting and a seat portion at the top of the chair that may include a cushion or similar component for increasing the stability and/or comfort of a sitter. The chair may also include a plurality of counterpart bosses and divots on opposing sides to facilitate stable stacking of the cylindrical active chairs.

An active sitting chair is provided that encourages a sitter/user to sit actively by requiring balance adjustments and core engagement. The active sitting chair can be efficiently produced while being relatively sturdy and lightweight. The main body may be a monocoque shell that includes a rounded lower portion that contacts the surface the chair is on and promotes wobble of the chair when a sitter is seated on the chair. The chair may also include built-in handles for ease of lifting and a seat portion at the top of the chair that may include a cushion or similar component for increasing the stability and/or comfort of a sitter. The chair may also include a plurality of counterpart bosses and divots on opposing sides to facilitate stable stacking of the cylindrical active chairs.

A user's motion while seated on an active chair is monitored and the user's metabolic expenditures stemming from the motion are determined. Information associated with or derived from the measured motion and/or determined metabolic expenditures may be be displayed. Motion sensors and gyroscopes are configured to detect the motion of the active chair associated with active sitting while the user is sitting. Data from these sensors is used to determine sitting activity of the user. In addition, a sitter's posture may be monitored and alerts sent to encourage the siter to improve posture. A training aspect may also be included that assists sitters/users to improve posture generally by guiding them through a patterned series of movement designed to improve pelvic mobility and awareness.