4. Plank
Planks are the best for the weak people out there; it might take them time as their abdomen turns so weak that they need weeks of training to hold themselves on the plank just for 5 seconds. Make sure you all get through 30 seconds and maximize the time. This exercise helps in abdomen strengthening, body balance, arms, chest, and core. Lie on your chest and hold yourself completely up straight by the support of your elbows till handing. Keep your body straight and up by your feet.
