Popsugar Health & Fitness Workouts Shaun T's Favourite Bodyweight Exercises A Beachbody Trainer Says These Are the Best Exercises to Build Muscle (Workout Included) 29 June 2018 by Tamara Pridgett View On One Page Photo 17 of 23 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 17 Spider-Man Plank Start in plank position, and bring your left knee to your elbow. Place your left foot back on the ground. Alternate sides, bringing your right knee toward your elbow, then place your right foot back on the ground. This counts as one rep. Previous Next Start Slideshow BeachbodyBody WeightFitness TipsBodyweight ExercisesArm WorkoutsBodyweight WorkoutsBack ExercisesCore ExercisesAb WorkoutsFull-Body Workouts