![With legs straight and stacked, extend your top leg upwards and hold for 10 seconds. Charles Crowell for The National](https://thenational-the-national-prod.cdn.arcpublishing.com/resizer/v2/LD3EVWVSI3WUXVRV2MWK6ZQ4OA.jpg?smart=true&auth=92f6c1a69880d590133eae6b0a3e0bb6a3829be75dd0d6905402a98eafed19c3&width=400&height=225)
With legs straight and stacked, extend your top leg upwards and hold for 10 seconds. Charles Crowell for The National
With legs straight and stacked, extend your top leg upwards and hold for 10 seconds. Charles Crowell for The National
Move of the week part 7: side plank
Learn the seventh exercise in our eight-part weekly series of workouts: side plank.
The National staff
May 21, 2013