Figure 2
![Figure 2](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2F1471-2474-6-27/MediaObjects/12891_2004_Article_140_Fig2_HTML.jpg)
Tests of functional performance. A) Ã…strand's cycle-ergometer test [24]. B) Rising on one leg from sitting on lowest possible height [25, 26]. C) One-leg hop [25], [27]. D) Lateral step-up [28]. E) One-leg semi squatting; maximum number during 30 sec. [26]. F) Heel-rising on one leg; maximum number during 20 sec. [26], [29].