Try the pushup plank exercise to change up your routine and challenge your body. You should always be concerned with improving your core strength. The pushup plank will help you progress with your core strength.
Get in the pushup position and balance on your toes while keeping your body in a straight line. Hold the plank position for the required count without moving. Keep your head in line with your torso and brace your torso (as if taking a punch to the gut).
The pushup plank is an isometric bodyweight exercise which helps you build strength and burn fat without moving much. They are great for building muscles, stabilizing muscles, building strength, improving power and burning fat.
Isometric contractions can be described as a type of muscle contraction where your muscles develop tension without changing length.
Isometric contractions force most if not all of your muscles to work during an exercise. Do the pushup plank your next workout!