What will happen if you plank every day for 1 minute

Lie facedown with your forearms on the floor, with your legs extended and your feet together. You can use a mat or towel to make this more comfortable.
Push into your forearms as you raise your body so it forms a straight line from your head and neck to your feet. (Do not let your hips rise or sag.)
Keep your gaze down and hold this position as you engage your abdominal muscles. Take steady, even breaths.
Try to maintain the position for up to 30 seconds and then lower your body and rest. This completes one set. Work toward completing two to three sets.When you first start to do planks, you may not be able to hold the correct position for very long. Keep practicing and you’ll find it becomes easier to do.
If resting on your forearms is uncomfortable, do the plank from a push-up position, with your arms fully extended. If you have back pain or other back issues, either do the plank on your knees or stand straight and lean against a counter so your body is at a 45° angle.
If you need more of a challenge, try alternating leg lifts during the pose: raise one leg for a second or two, and then repeat with the other leg.
https://www.health.harvard.edu/blog/straight-talk-on-planking-2019111318304