Popsugar Fitness Workouts At-Home SLT Tread Workout: Core and Running Intervals This SLT Tread Workout Will Toast Your Core, Legs, and Lungs — In That Order April 26, 2022 by Lauren Mazzo View On One Page Photo 2 of 11 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 2 Slider Plank Jack Start in a high plank with each foot on a slider, feet together. Keep your abs engaged and hips lifted. Slide your feet apart and then slide them back together, without letting your hips move. (You can go slow or fast.) Repeat for 30 seconds. Previous Next Start Slideshow WorkoutsRunningHome WorkoutsTreadmill WorkoutsCore ExercisesPilatesIntermediate Workouts45-minute WorkoutsAb Exercises