1.   He strained his back during a practice session.

2.   I strained my back trying to lift the couch.

3.   Backup point guard Kira Orr strained her back in the second quarter and did not return.

4.   Barkley said he badly strained his back when he overcompensated for an aching left knee.

5.   Agassi, driving from the airport to his Las Vegas home, strained his back when his car was rear-ended in a minor automobile accident Sunday night.

6.   First, Michael Jordan strained his back in the first round against Miami.

7.   I think maybe I strained my back a little.

8.   It allows children to scurry in without having to tip the front seats forward, and it lets parents buckle in their charges without straining their backs.

9.   Instead of straining your back to place heavy loads within, one may place them sans muscle pull on the tray and slide the weight into the wagon.

10.   Nor does he spend manly hours straining his back against the giant blue marlin of Hemingway lore.