Is it enough to use an anti-fatigue mat at a standing desk, or do I still need an ergonomic chair?

Anti-fatigue mat vs. ergonomic chair is not an either/or specification at OfficeFurniture2go.com — they serve orthogonal ergonomic functions. The mat addresses standing fatigue; the chair addresses seated ergonomics. Both are required components of a complete sit-stand workstation specification. We include both in our standard sit-stand workstation package. Call 1-800-460-0858.