We finished the research study late last year and it should be published sometime this year. Happy to share the report, email me, mark at movably dot com.

Everyone absolutely should be skeptical. I have tried a lot of chairs, the most recent which allowed me to re-position most was the Hag Capisco. But to some extent it still would interrupt focus. I have also found almost no research studies showing effectiveness of ergonomic chair designs, but would love pointers to any others that may exist.