The human body is the structure of a human being. It is composed of many different types of cells that together create tissues and subsequently organ systems. They ensure homeostasis and the viability of the human body.
The Aeron chair is an office chair manufactured and sold by American furniture company Herman Miller. Introduced in 1994, it was designed by Don Chadwick and Bill Stumpf and has received numerous accolades for its industrial design. It is featured in the Museum of Modern Art's permanent collection. It has been cited as the best-selling individual office chair in the United States with over 8 million sold.
Sitting is a basic action and resting position in which the body weight is supported primarily by the bony ischial tuberosities with the buttocks in contact with the ground or a horizontal surface such as a chair seat, instead of by the lower limbs as in standing, squatting or kneeling. When sitting, the torso is more or less upright, although sometimes it can lean against other objects for a more relaxed posture.
A chair is a type of seat, typically designed for one person and consisting of one or more legs, a flat or slightly angled seat and a back-rest. They may be made of wood, metal, or synthetic materials, and may be padded or upholstered in various colors and fabrics.
A standing desk or stand-up desk is a desk conceived for writing, reading or drawing while standing up or while sitting on a high stool.
The computer desk and related ergonomic desk are furniture pieces designed to comfortably and aesthetically provide a working surface and house or conceal office equipment including computers, peripherals and cabling for office and home-office users.
A car seat is the seat used in automobiles. Most car seats are made from inexpensive but durable material in order to withstand prolonged use. The most common material is polyester.
Lordosis is historically defined as an abnormal inward curvature of the lumbar spine. However, the terms lordosis and lordotic are also used to refer to the normal inward curvature of the lumbar and cervical regions of the human spine. Similarly, kyphosis historically refers to abnormal convex curvature of the spine. The normal outward (convex) curvature in the thoracic and sacral regions is also termed kyphosis or kyphotic. The term comes from the Greek lordōsis, from lordos.
A kneeling chair is a type of chair for sitting in a position with the thighs dropped to an angle of about 60° to 70° from vertical, with some of the body's weight supported by the shins.
An office chair, or desk chair, is a type of chair that is designed for use at a desk in an office. It is usually a swivel chair, with a set of wheels for mobility and adjustable height. Modern office chairs typically use a single, distinctive load bearing leg, which is positioned underneath the chair seat. Near the floor this leg spreads out into several smaller feet, which are often wheeled and called casters. Office chairs were developed around the mid-19th century as more workers spent their shifts sitting at a desk, leading to the adoption of several features not found on other chairs.
A recliner is an armchair or sofa that reclines when the occupant lowers the chair's back and raises its front. It has a backrest that can be tilted back, and often a footrest that may be extended by means of a lever on the side of the chair, or may extend automatically when the back is reclined.
The Mitzvah Technique is focused on dealing with body mechanics in a state of motion. It is a development of the Alexander Technique, the Feldenkrais Method, and health-oriented work on musculoskeletal problems and stress diseases. Each of these techniques is based on correcting common postural faults by addressing the neuromuscular system through postural re-education. The Mitzvah Technique includes a philosophy in addition to its set of procedures. This includes the discipline, exercises, and work that Mitzvah Technique practitioners do with their hands.
A bicycle saddle, often called a bicycle seat, is one of five contact points on an upright bicycle, the others being the two pedals and the two handles on the handlebars. The bicycle saddle has been known as such since the bicycle evolved from the draisine, a forerunner of the bicycle. It performs a similar role as a horse's saddle, not bearing all the weight of the rider as the other contact points also take some of the load.
Active sitting occurs when seating allows or encourages the seated occupant to be active even whilst seated. Also referred to as dynamic sitting, the concept is that flexibility and movement while sitting can be beneficial to the human body and make some seated tasks easier to perform. One of the earliest forms of active sitting is the common rocking chair which allows forward and backward swaying motion.
In human anatomy, the penis is an external male intromittent organ that additionally serves as the urinary duct. The main parts are the root (radix); the body (corpus); and the epithelium of the penis including the shaft skin and the foreskin (prepuce) covering the glans penis. The body of the penis is made up of three columns of tissue: two corpora cavernosa on the dorsal side and corpus spongiosum between them on the ventral side. The human male urethra passes through the prostate gland, where it is joined by the ejaculatory duct, and then through the penis. The urethra traverses the corpus spongiosum, and its opening, the meatus, lies on the tip of the glans penis. It is a passage both for urination and ejaculation of semen.
A wheelchair is a chair with wheels, used when walking is difficult or impossible due to illness, injury, problems related to old age, or disability.
Squatting is a versatile posture where the weight of the body is on the feet but the knees and hips are bent. In contrast, sitting involves supporting the weight of the body on the ischial tuberosities of the pelvis, with the lower buttocks in contact with the ground or a horizontal object. The angle between the legs when squatting can vary from zero to widely splayed out, flexibility permitting. Another variable may be the degree of forward tilt of the upper body from the hips. Squatting may be either full or partial.
A piano stool is a stool especially designed for seating while playing the piano, and can provide more playing pleasure than a normal chair.
