ABSTRACT
Earlier chapters have described the fractal properties of different biomedical signals and images. This chapter investigates the comparison between the fractal dimension of the younger and older cohorts. Three case studies have been described; electromyogram (EMG), electrocardiogram (ECG) and eye fundus images. EMG is an indicator of voluntary muscle activity and provides an insight to changes in muscle strength; ECG is for the cardiac activity and is the autonomous activity, while eye fundus is a medical image. The results show age associated reduction in FD for these three recordings. The results also show that the results are sensitive to the method of measuring FD. In conclusion, the case studies confirm that there is a reduction in the FD with age; however it is important to use the appropriate method to measure the change.
