To increase the plank test challenge . . . Once you can hold a plank with good form for a full minute, try holding it for even longer or doing alternating leg lifts (raising one leg at a time).

Discover 5 simple tests to check if you’re aging too fast after 40 and how to improve your results with training and lifestyle.

This 31-day plank challenge for beginners to advanced fitness levels is a full-body workout to boost metabolism, build core strength, tone abs and ...

After 45, fitness is about building the kind of strength, endurance, and stability that makes every part of life easier. You ...

Holding a 45-second plank after 50 signals elite core strength. Here’s how to test and improve your score.

A New York woman celebrated her 100th birthday with a test of stamina and strength.

A New York woman celebrated her 100th birthday with a test of stamina and strength.

A New York woman celebrated her 100th birthday with a test of stamina and strength.