Working on your core
Exercising your core is really important: it helps prevent injuries and back pain, enhances your balance and stability, and improves your posture.
3. Plank
Focus on form. Don’t drop your hips or raise your butt. Your goal is 3 sets and for each set you’ve got to hold your plank position for 30 seconds.
STEPS:
1. Start at the top of a push-up position.
2. Bend your elbows and rest your weight on your forearms.
3. Brace your abs and hold.