PopsugarFitnessWorkouts30-Minute Bodyweight HIIT Cardio WorkoutThis 30-Minute HIIT Cardio Workout Can Be Done Anywhere and Requires Zero Equipment November 11, 2020 by Maggie Ryan View On One Page Photo 5 of 7 ADVERTISEMENT () Start Slideshow Share This LinkCopy ← Use Arrow Keys → 5 Circuit, Exercise 3: Straight-Arm Jumping Jack Begin standing with your feet together, your core pulled in, and your hands at chest level.Jump your feet out to either side while driving your hands straight overhead. Land lightly on the balls of your feet, wider than hip-width apart.Jump your feet back to the starting position, lowering your hands to your chest simultaneously.This counts as one rep. Do as many reps as you can with proper form in 30 seconds.PreviousNext Start Slideshow WorkoutsHome WorkoutsCardio WorkoutsBodyweight ExercisesHIITNo-Equipment Cardio ExercisesNo-Equipment Cardio WorkoutsBeginner Workouts30-Minute WorkoutsFull-Body Workouts