WEEK 2: EXPLOSIVE MOBILITY AND RESISTANCE BOOSTER Contenuto del Corso X-Tend | W2 Giorno 1 – Isometric contraction endurance workout X-Tend | W2 Giorno 2 – Aerobic interval training AIT X-Tend | W2 Giorno 3 – Killer core burner X-Tend | W2 Giorno 4 – Explosive power and mobility hiit X-Tend | W2 Giorno 5 – Iron booty workout X-Tend | W2 Giorno 6 – Riposo X-Tend | W2 Giorno 7 – Explosive mobility and resistance challenge