There aren't many fitness instructors who own a Zimmer frame, but then 98-year-old Hildegard Gigl is something of an exception.
While she may be pushing 100 years old, Hildegard's age doesn't stop her leading bi-weekly fitness classes at the independent retirement centre she calls home.
Her dedicated students are all aged 75 years and older, are also residents at the home.
Naturally exercises are slightly modified to fit the older people's physical abilities - swapping dumbbells for soup cans and burpees for gentle press-ups against the wall - but the results speak for themselves.
Hildegard's relative fitness and sharpness of mind are an inspiration for class members: "I've got her example, she's gonna make it to 100 and so am I," says 85-year-old Dolores Gegenhuber.
"I believe it's what keeps them mobile, motivated and happy," she says.