In the meanwhile she turned 97 and still going strong. Here is a Wiki article about her.
For those too lazy to bother, here is the summary. Johanna was born in 1925 in Saxony, which later became DDR. She did sports from her youth and later became a gymnastics coach. She married rather late (at about 37), and went on to have 3 daughters.She quit doing professional sports and spent the next 20 odd years raising a family and started competing again at the age of 56. She survived her husband despite him being younger. Johanna has children, grandchildren and great-grandchildren and is very much involved in their life. She wants to inspire other seniors to lead an active lifestyle.