Studies have found this version of interval training to be especially helpful for serious runners, but it can be adapted for folks who work out for health and fitness rather than to compete. Here's how to get started.
| |  | | Refresh Your Exercise Routine with 10-20-30 Intervals | | Studies have found this version of interval training to be especially helpful for serious runners, but it can be adapted for folks who work out for health and fitness rather than to compete. Here's how to get started. | | | | | | | | EDITOR'S PICK OF THE WEEK | | | | | | | | You are receiving this newsletter because you subscribed to the Fit Life newsletter. If you wish to unsubscribe, please click here. | | A DOTDASH BRAND 1500 Broadway, 6th Floor, New York, NY, 10036 | | | | | | |
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