StrengthCoach member Ben Norcott, Professional Athletic Performance Coach, an expert in developing speed, power, strength and injury rehabilitation posted this on the forums so we wanted to make sure everyone sees it.
Ben has 20 years experience in strength and conditioning, including working with Brumbies Rugby, Australian under 20's Rugby Union and the Australian Institute of Sport, to name a few.
Ben has added his insight into the forum threads
MAS = Maximal Aerobic Speed
What is it used for? Testing aerobic capacity, using a time trial method. Generating running workload based on time trial outcomes. So, the test becomes the way of generating workloads.