Core muscle strength after age 55 plays an important role in how the body moves, feels and works daily. Core muscles help maintain posture, protect the lower back, and support effective power transfer between the upper and lower bodies.
Plank posture time is an indicator reflecting the ability to maintain core muscle stability under constant pressure. This exercise also requires the coordination of multiple muscle groups.
For people over 55 years old, if they can only maintain the plank position for less than 20 seconds, core muscles need to be improved; 20 - 40 seconds show endurance below average; 40 - 60 seconds show solid core muscle strength; 60 - 90 seconds show good control and stability.
If you maintain the plank posture for over 90 seconds, you belong to the group with core strength at a high level compared to your age. This often reflects the efficient performance of the core muscle group and good physical fitness.