Why does it work?
Beastanetics is a form of HIIT (high-intensity interval training) which features short bursts of intense exercise followed by brief periods of rest. Studies demonstrate that HIIT boosts cardiorespiratory fitness (Kessler, Sisson, and Short
), leads to positive cellular adaptations (Westerblad
), reduces the risk of heart disease (Swain and Franklin
), and improves metabolic health (Jelleyman, et al
; Perr; Talanian; Horowitz & Klein, Boutcher). There is also evidence to suggest that one seeking general fitness can gain as much or more benefit from short, intense bouts of exercise as by performing continuous endurance exercise (Daussin
; Helgerud et al
One of the reasons HIIT works is because it allows you to push your body to the limit, something that’s impossible to do with endurance training.