Cycling has a large suite of tests too. Watch this ex-professional cyclist, 10-years after his retirement, cope with the test and hear of his results in an effort to regain his former self and fitness.
Future
Would be great to have a chapter about tests that are done in other sports and what can be learned from them. Perhaps some of their wisdom and science can fit into the understanding for swimming test sets as well.
Well rounded swimmers should be able to cycle as well
Many swimmers should be able to transition to the triathlon and aqua-bike races as young adults, after their competitive swimming careers have ended. Giving the exposure to the cycling world would help keep more into sports throughout their lives, perhaps.