Fig. 4

Peak strain results across activities: results are split by Achilles tendon location. The size of the data points is proportional to the number of participants. Colours indicate measurement methods; the filling gradient represents the speed or intensity of the activity and the shapes if the strain had been directly measured or was an indirectly obtained value. A: Medial gastrocnemius sub-tendon, B: lateral gastrocnemius sub-tendon, C: free tendon, D: medial gastrocnemius aponeurosis, E: lateral gastrocnemius aponeurosis, F: soleus aponeurosis