This is one of my favourite narrative expert reviews that discusses the benefits of human biologic springs like the Achilles tendon. These benefits can be summarised as follows:
Some really interesting mechanisms and insights for rehabilitation . I hope you enjoy!
Here is the link to the study:
Roberts, T.J. and Azizi, E., 2011. Flexible mechanisms: the diverse roles of biological springs in vertebrate movement. Journal of experimental biology, 214(3), pp.353-361.