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Riding-like Sitting
Riding-like sitting or balanced sitting includes a sitting posture that approaches the natural resting position. A forward-sloping seat encourages this natural posture, which is the same as when lying on the side while sleeping. The lumbar curve is preserved, the joint angles are open, and the muscles are well-balanced and relaxed. This position is exactly the same as when riding a horse: the rider sits upright and at the same time maintains a lumbar lordosis because of the downwards-sloping thighs. Riding-like sitting or balanced seating is the most suitable position for long periods of sitting. Forward-sloping seats and higher desks can eliminate lower back strain and even prevent chronic back pain. It also relieves pressure on the lungs and stomach and provides greater mobility. The advantages compared to conventional furniture in terms of pain, flexion, and comfort are documented in several scientific studies starting with research by A C Mandal, MD, and recently reviewed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sitting
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. Sitting for much of the day may pose significant health risks, with one study suggesting people who sit regularly for prolonged periods may have higher mortality rates than those who do not. The average person sits down for 4.7 hours per day, according to a global review representing 47% of the global adult population. The form of kneeling where the buttocks sit back on the heels, for example as in the ''Seiza'' and ''Vajrasana'' postures, is also often interpreted as sitting. Prevalence The British Chiropractic Association said in 2006 that 32% of the British p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neutral Spine
Spinal posture is the position of the spine in the human body. It is debated what the optimal spinal posture is, and whether poor spinal posture causes lower back pain. Neutral spine Looking directly at the front or back of the body, the 33 vertebrae in the spinal column should appear completely vertical. From a side view, the cervical (neck) region of the spine (C1–C7) is bent inward, the thoracic (upper back) region (T1–T12) bends outward, and the lumbar (lower back) region (L1–L5) bends inward. The sacrum (tailbone area) (S1–S5 fused) and coccyx (on average 4 fused) rest between the pelvic bones. A neutral pelvis is in fact slightly anteriorly rotated which means the anterior superior iliac spines should be just in front of the pubic symphysis not in the same vertical line. Posture abnormalities In medicine and occupations concerned with physical fitness, the concept of good posture is referred to as "neutral spine". In this context, proper posture or "neutral spine" ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Saddle Chair
A saddle chair uses the same principles in its design as an equestrian saddle. It is equipped with a chair base on casters and a gas cylinder for adjusting the correct sitting height. The casters enable moving around and reaching out for objects while sitting. Some saddle chairs have backrests, but most do not. Some models also have a swing mechanism in the seat, which increases small movement mobility to the low back and stomach for the goal of better circulation in soft tissues. Riding-like sitting on a saddle chair differs from sitting on a conventional chair. Saddle chair users sit 20–30 cm higher, which puts the hips and the knees into a 135° angle, compared to the 90° angle typically associated with sitting on a traditional chair. Because the saddle chair is higher than a normal office chair, the desk has to be higher as well. For this purpose there are desks that can be electronically or mechanically adjusted to fit the user. A saddle chair can also be used with a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Back Strain
Back strain is the injury occurring to muscles or tendons. Due to back strain, the tendons and muscles supporting the spine are twisted or pulled. Chronic back strain occurs because of the sustained trauma and wearing out of the back muscles. Acute back strain can occur following a single instance of over stressing of back muscles, as in lifting a heavy object. Chronic back strain is more common than the acute type. To avoid back strain it is important to bend the knees whenever you lift a heavy object – see partial squats. Signs and symptoms The pain over the back is localized and does not radiate into the leg. It occurs suddenly and may be accompanied by muscle spasms. The pain is dull, aching type and decreases on rest. It may be aggravated with activity. Cause Back strain occurs more in women than men and is more common after pregnancy. Lean people, those standing for long hours and those doing sedentary work in bad posture are prone to back strain. Back strain is also mor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Back Pain
Back pain is pain Pain is a distressing feeling often caused by intense or damaging stimuli. The International Association for the Study of Pain defines pain as "an unpleasant sensory and emotional experience associated with, or resembling that associated with, ... felt in the back. It may be classified as neck pain (cervical), middle back pain (thoracic), lower back pain (lumbar) or coccydynia (tailbone or sacral pain) based on the segment affected. The lumbar area is the most common area affected.Church E, Odle TDiagnosis and treatment of back pain. ''Radiologic Technology''&nbsserial online November 2007;79(2):126–204. Available from: CINAHL Plus with Full Text, Ipswich, MA. Accessed December 12, 2017. An episode of back pain may be acute, subacute or chronic depending on the duration. The pain may be characterized as a dull ache, shooting or piercing pain or a burning sensation. Discomfort can radiate to the arms and hands as well as the legs or feet, an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Partial Squat
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 taking the weight of the body, at least in part, on the buttocks against 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. Crouching is usually considered to be synonymous with squatting. It is common to squat with one leg and kneel with the other leg. One or both heels may be up when squatting. Young children often instinctively squat. Among Chinese, Southeast Asian and Eastern European adults, squatting often takes the place of sitting or standing. Etymology Squatting comes from the Old French ''esquatir/escatir'', meaning to "compress/press down". The weight-lifting sense of squatting is from 1954.Harper, D. (n.d.). Etymol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Peter Opsvik
Peter Opsvik is a Norwegian industrial designer best known for his innovative and ergonomic chairs, and the father of Jazz bass player Eivind Opsvik. Opsvik's furniture can be found under the brand names: Rybo (Garden), Nomi High Chair, Håg (Capisco, H04, H05, Conventio Wing), Varier, Stokke (Tripp Trapp) Naturellement (Reflex), Cylindra (Furniture objects) and Moment (Globe). His book Rethinking Sitting came out in 2009 giving insight into his thinking about sitting and explaining the philosophy behind his chairs. Peter Opsvik is also a jazz musician. He has been a member of Christiania Jazz band from 1972 and the band Christiania 12 from 1993. Essential concepts His probably best known work is the adjustable Tripp Trapp (1972) chair for children, the first chair that "grows" with the child from toddler to teenager. It is manufactured by the company Stokke and has sold in more than seven million copies. In 2013, together with Evomove.com, he launched the Nomi high chair conc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ergonomics
Human factors and ergonomics (commonly referred to as human factors) is the application of psychological and physiological principles to the engineering and design of products, processes, and systems. Four primary goals of human factors learning are to reduce human error, increase productivity, and enhance safety, system availability, and comfort with a specific focus on the interaction between the human and the engineered system. The field is a combination of numerous disciplines, such as psychology, sociology, engineering, biomechanics, industrial design, physiology, anthropometry, interaction design, visual design, user experience, and user interface design. Human factors research employs methods and approaches from these and other knowledge disciplines to study human behavior and generate data relevant to the four primary goals above. In studying and sharing learning on the design of equipment, devices, and processes that fit the human body and its cognitive abilit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Partial Squatting Position
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 taking the weight of the body, at least in part, on the buttocks against 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. Crouching is usually considered to be synonymous with squatting. It is common to squat with one leg and kneel with the other leg. One or both heels may be up when squatting. Young children often instinctively squat. Among Chinese, Southeast Asian and Eastern European adults, squatting often takes the place of sitting or standing. Etymology Squatting comes from the Old French ''esquatir/escatir'', meaning to "compress/press down". The weight-lifting sense of squatting is from 1954.Harper, D. (n.d.). Etymol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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