An account of the bio-mechanic (ergonomic) factors, associated with prolonged sitting, accounting for mechanical spinal pathology (Backache, LBP, IVDisc pathology, CTD) and options for their remediation.
- The work is intended as a resource for the design of work chairs. It represents some essential reading for designers of ergonomic chairs and manufacturers of retail office chairs if they wish to improve the ‘ergonomics’ of their models with overwhelming health selling points.
- To avoid designing ergonomic adverse chairs. A surprising number are in the market. ☛ Why?
- The adverse effects of mid-upright sitting.☛ The upright seated posture. →
- To fully understand the above some knowledge of spinal anatomy, pathology & bio-mechanics is needed.☛ The SCIENCE→
- Basic ergonomic requirements for chair design.☛REMEDIATION →
- The fully optimised concept ☛The 2Tilt concept, the ultimate remediation →
- It is also very relevant to Interior designers and architects involved with office design and not forgetting the ‘end user’ who has the ultimate benefit .
An overview of this work
This is indicated in the top menu↑. All post are shown in the menu on the right→ .
Specialists may prefer to jump directly to their page of interest using the Right menu→.
For an overview of contents…..
See the SPECIALIST page → This includes a large body of research and background, on spinal bio-mechanics. It is subdivided into :-
- For DESIGNERS →
- MANUFACTURE of ergonomic chairs→
- For ARCHITECTS. ‘Coolness’ is the word.→
- & Office managers →
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, 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 ☛ Ergonomics and office stress.→ )
Office managers should consult this blog as a resource. It allows an alternative view to the usual hype, often laughably misguided, from manufacturers,
And not forgetting the interest of all chair users ……
- For GENERAL USERS→
- BACKACHE? For users and patients (only)→
- 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→
Backache & chairs. A number of systems are described. Spinal bio-mechanics dictates that prolonged sitting should be performed in a reclined position with frequent change of posture. For a full remediation a number of requirements are essential. To be effective these are detailed in the 2 Tilt (2T) concept.
Science, and some relevant topics
- Spinal 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?→).
- Also included are Adjustments, comfort, exercise and movement. The way things are going. Special needs, the desk less office chair, pods, school desks & chairs (See menu →).
- The office environment it’s relation to physiological and psycho-social stress, ergonomics and remediation.