The image is a vintage medical illustration, likely from a textbook or manual. It depicts a skeletal figure of a person undergoing a passive movement exercise. The figure is kneeling on a pillow, with their knees spread apart. Another skeletal figure stands behind them, with their hands placed on the patient's hips, presumably to assist with the movement. The illustration is done in a simple, line-drawing style, with minimal shading. The text above the image is in German and describes the exercise as a 'low-arch-split-knee trunk-rotation' (passive movement). The illustration is labeled 'Fig. 23'. The background is a pale yellow color.