Fitness Basics
The most common front plank mistakes
Personal trainer Kathleen Trotter on what to avoid doing to get the maximum benefit out of the core exercise
The most common sit-up mistakes
Personal trainer Kathleen Trotter on the biggest mistakes she sees people make while doing crunches
Tone your waist with oblique twists on ball
This core exercise specifically targets the sides of your waist
'Starfish' builds lower back strength
This core exercise primarily focuses on the muscles that extend your lower back
Work your core with side plank with reverse fly
Use this variation of the traditional plank to zero in on your core and build upper-body strength
Get tough on your core with 'plank with front arm slide'
Make sure you've mastered the traditional plank before trying this move
'Front plank rotation' focuses on your core
This move combines the front and side planks for a more advanced exercise
Go 'swimming' to strengthen your lower back
This exercise works your core but specifically emphasizes your lower back
'Plank and wide pike' builds core muscles
Personal trainer Kathleen Trotter demonstrates how to do this variation on the traditional plank
Strengthen your core with 'moving plank with knee tucks'
Personal trainer Kathleen Trotter demonstrates this move, which works your core and also strengthens your upper body and shoulders
