How to Jump Start Your Workout

Erica Hill talks to gym owner David Barton about how to workout smarter and set realistic expectations in the new year.

• 2011-01-04T19:01:34+00:00
• Duration: 04:38

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cbsepisode , the , early , show , workout , brain, body , health, exercise , david , barton, jump-start , quality , quantity , realistic, sport, ejercicios, ejercicios para cuerpo