The Layout Arrangement of this work.
All post are shown in the menu on the right→ . Specialists may prefer to jump directly to their page of interest using this menu→.
For an overview of contents…..
Designers are the intended readers and, apart from some duplication, are advised to read the whole work. This includes a large body of research and background, on spinal bio-mechanics.☛ For DESIGNERS →
Manufacturers can be reassured that feasibility indicates that existing components can be used , avoiding the expense of retooling, while preserving their brand image. Prospective manufacturers can be helped to leap ahead of the field, ☛ Manufacturers →
New ideas can create both threats and opportunities , once both familiarity and normalcy biases are overcome. Creative disruption works.
For New offices ‘Coolness’ is the word to excite media interest for both the company and the Architect/Designer. Most firms aspire to project this cutting edge image. A 2T chair, or the derived 4M workstation, answers this exactly and in addition reduces LBP and increases productivity by lessened morbidity and stress. Also see ☛ PRODUCTIVITY AND WORKPLACE STRESSORS→(Article published in EurOhs, European Occupational Health and Safety Journal, Dec 2002.by Dr HA Sanford)
Allows an alternative view to the usual hype, often laughably misguided, from manufacturers,
Also of LIKELY INTEREST to a general reader
- THE WAY WE SIT NOW→
- HOW WE SIT NOW→
- How other people sit→
- Why? Mandal’s Homo sedens→.
- Various chairs. How do they measure up?→
- EXERCISE & movement→
- Sit Stand & stools→
- School chairs & desks→
Topics and some relevant subjects
- Anatomy includes a number of detailed studies of the more relevant component parts and an account of the paleoanthropology which resulted in the vulnerability of the lumbo-sacral junction. ☛ Spinal Anatomy→
- Biomechanics in relation to sitting postures. ☛ Spinal biomechanics→.
- How did we arrive here? ☛ Paleo Anthropology →
- In addition,The way we sit now, further explores present sitting including the comments (☛Why? Mandal explains…→), Gorman and others. Comparisons are made with various existing chairs (☛How do they measure up?→).
- Remediation describes various measures that have been taken to improve the ergonomics and their further evolution ☛2T CONCEPT a full solution →
- The office environment (☛Office→), it’s relation to physiological and psycho-social stress, ergonomics and remediation, the deskless chair and desk/chair interface.
- Reduction of axial loading (Disc compression) →
- Avoid backward tilting of the pelvis →
- Ensure disc nutrition by pressure changes with movement →
Systems in use at present, See ☛ Remediation→
This incorporates :-
- A reclined mode for prolonged work ☛2T reclined mode→
- An upright mode required for certain short jobs. ☛2T Upright mode→
- An unstable intermediate mode to enable a quick, easy transition between the 2T modes. ☛2T transition mode→ ☛ dynamic seating→ With the recognition that the transition movement has physiological advantages, this has been upgraded to a ‘mode’. The 2T now becomes a triple-mode (3M) concept.
Compared to people who sit the least, those who spend most time in a chair have a 112 % higher risk of developing diabetes, a 147% higher risk of suffering “cardiovascular events” such as strokes and a 49%t increased risk of death from any cause. (http://www.telegraph.co.uk/wellbeing/fitness/sitting-disease-is-killing-us-and-exercise-doesnt-help/) Alarming but not entirely an effect of the bio-mechanics and not examined here. However some posts are relevant.
- OFFICE STRESS & Backache→
- ☛ Jukes. Managing the Ergonomics →
- ☛ PRODUCTIVITY AND WORKPLACE STRESSORS→ (Article published in EurOhs, European Occupational Health and Safety Journal, Dec 2002.by Dr HA Sanford)
- ☛ HAS, on ☛ Office health (& RSI)→ Only a lighthearted account.
- ☛ The OFFICE 2 Tilt chair →
- ☛ 4M OFFICE WORK-STATION→
- ☛ SLEEP & productivity