Chairs & Seating - Sitting Techniques That Support Productivity and Health

By choosing appropriate chairs, you can maintain concentration even during long desk work and reduce physical strain.

Office Chair Ergonomics Posture Improvement Back Pain Prevention Desk Work

Chair Selection Determines Work Efficiency and Health

Modern knowledge workers spend most of their day sitting in chairs. Choosing appropriate chairs is not just a matter of comfort but an important investment directly connected to work productivity and long-term health.

The human body is not designed to maintain the same posture for long periods. Continuing to sit in inappropriate chairs causes various symptoms like back pain, shoulder stiffness, and neck pain. These symptoms invite decreased concentration and significantly impair work quality and efficiency.

The Importance of Ergonomic Chairs

Chairs designed based on ergonomics (human engineering) provide support that follows the body's natural curves. Appropriate lumbar support, adjustable armrests, and seat height adjustment functions enable optimal sitting posture adjusted to individual body types.

Initial investment may be expensive, but considering medical cost reduction and productivity improvement, there's sufficient value in the long term. Chairs are tools used for several hours daily, and considering that products that last over 10 years are common, daily cost becomes very low.

Here we introduce chairs according to different price ranges and uses. Choose according to your usage environment and budget.

Ergohuman Pro with Ottoman

Ergohuman's flagship model featuring independent lumbar support and built-in ottoman. The elastomeric mesh material provides excellent breathability, maintaining comfort even during long desk work sessions. Diverse adjustment features accommodate users of various body types.

  • Independent lumbar support precisely supports the lumbar spine
  • Ottoman stored under the seat allows relaxation during breaks
  • Excellent breathability from elastomeric mesh prevents stuffiness
  • Fine adjustments possible for armrests, seat height, reclining, and more
エルゴヒューマン オフィスチェア プロ ブラック オットマン内蔵型 ヘッドレスト付き エラストメリックメッシュ ergohuman PRO OTTOMAN EHP-LPL KM-11

エルゴヒューマン オフィスチェア プロ ブラック オットマン内蔵型 ヘッドレスト付き エラストメリックメッシュ ergohuman PRO OTTOMAN EHP-LPL KM-11

エルゴヒューマンのストアを表示

●収納式のオットマンを内蔵。ラチェット式で細かい段階で調節可...

The flagship model from Ergohuman, a representative ergonomic chair brand. Independent lumbar support accurately supports the lumbar spine, and mesh material's excellent breathability prevents stuffiness even during long use. The ottoman stored under the seat can be extended during breaks to stretch legs and relax. Various adjustment functions accommodate different body types.

Okamura Sylphy Extra High Back

A high-function office chair developed by Okamura, featuring a back curve adjust mechanism that allows the backrest curve to be adjusted to fit different body types. Designed with consideration for Japanese body types, it balances breathability from the mesh back with solid sitting comfort. Delivered fully assembled, requiring no assembly.

  • Back curve adjust mechanism allows matching the backrest curve to your body type
  • Extra high back provides solid support from back to head
  • Adjust arms allow fine-tuning of elbow position
  • Manufacturer-assembled delivery eliminates assembly hassle

A high-function chair developed by major domestic office furniture maker Okamura. The greatest feature is the "back curve adjust mechanism" that adjusts backrest curve to user's body type. Achieves ideal sitting posture for each body type from small to large builds. Japanese quality product balancing mesh back breathability with firm sitting comfort.

IRIS OHYAMA High Back Mesh Chair

A cost-effective high-back mesh chair from IRIS OHYAMA. The memory foam seat distributes body pressure while the mesh back ensures breathability. A product that achieves an affordable price range while featuring armrests and reclining function.

  • Memory foam seat distributes body pressure to reduce fatigue
  • High-back design provides solid support for the entire back
  • Mesh material provides breathability for comfort during long sessions
  • Entry model equipped with armrests and reclining function

An optimal product as an entry model with excellent cost-performance. High-back design supports the entire back with mesh material ensuring breathability. Armrests reduce arm fatigue and reclining function allows work-break distinction. Recommended for first office chair purchases or budget-conscious buyers.

Sanwa Direct Balance Chair

A balance chair that naturally tilts the pelvis forward with its knee-rest structure, promoting correct posture. Height adjustment is possible with gas-lift mechanism, and casters make it easy to move. This product aims to reduce back strain through a different approach from conventional office chairs.

  • Knee-rest structure naturally tilts the pelvis forward and straightens the spine
  • Gas-lift mechanism allows height adjustment to match the user's physique
  • Casters make moving and getting in and out of desks easy
  • Using in combination with regular chairs prevents posture fixation
サンワダイレクト バランスチェア ガス圧昇降タイプ 100-SNC038

サンワダイレクト バランスチェア ガス圧昇降タイプ 100-SNC038

ブランド: サンワダイレクト

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A product taking a different approach for posture improvement from conventional chairs. The knee-supporting structure naturally tips the pelvis forward, maintaining straightened back posture. Gas pressure elevation enables height adjustment. By alternating use with regular office chairs at set intervals, physical strain from maintaining the same posture can be distributed.

Summary

Chair selection should comprehensively consider your body type, usage time, and work content, not just price. Expensive chairs are not necessarily optimal for everyone. If possible, we recommend actually sitting and confirming whether it fits your body. Investment in good chairs reliably returns in the form of health and productivity.