The 28-Day HIIT Challenge – Day 21 Posted bySMay 21, 2022August 16, 2020Posted inExerciseTags:28 Day Challenge, Ball Press, Bicycle Crunch, Burpee, Crab Touch, Cross Jack, Cross-Country Seal, Day 21, Diagonal Pike, High Knees, Home Workout, Jump Lunge, Jumping Jack, Mogul Jump, Mountain Climber, Pike, Power Hour, Power Knee, Reverse Lunge, Seal Jack, Skater Jump, Ski Jump, Sprint, Squat, Squat Jump, Squat Pedal, Star, The Mummy, Tiger Push-Up Do each set three times. Rest for 30 seconds after each set. Total Time: 45m Warm Up Workout Share this:Click to share on WhatsApp (Opens in new window)Click to share on Twitter (Opens in new window)Click to share on Pinterest (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on LinkedIn (Opens in new window)Click to share on Reddit (Opens in new window)Click to share on Tumblr (Opens in new window)Click to email a link to a friend (Opens in new window)Like this:Like Loading... Related