Home Cardio 30 Minute Sprint and Threshold HIIT Indoor Cycling Cardio Workout | Get... Cardio 30 Minute Sprint and Threshold HIIT Indoor Cycling Cardio Workout | Get Fit Fast By deltonsun - 2 0 Facebook Twitter Pinterest WhatsApp Welcome to another 30 minute HIIT workout from GCN Training! The session focuses on intense 30 second efforts and then longer intervals immediately … source RELATED ARTICLESMORE FROM AUTHOR 20 MIN NO EQUIPMENT HIIT Workout – sweat & burn lots of calories I stronger together series DAY 3 CARDIO WORKOUT with PHOOKIE, 3 month of leg injury, it's finally recover. Time to rebuilt that leg. Cardio workout LEAVE A REPLY Cancel reply Please enter your comment! Please enter your name here You have entered an incorrect email address! Please enter your email address here Save my name, email, and website in this browser for the next time I comment.