In 1959 she opened The Lotte Berk Studio in her West End basement .
After injuring her back , Berk got the idea of combining her ballet bar routines with her rehabilitative therapy to form an exercise system .
In 1959 Berk opened The Lotte Berk Studio in Berk 's West End basement .
After injuring her back , Berk got the idea of combining her ballet bar routines with her rehabilitative therapy to form an exercise system .