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These girls with muscles may inspire more than the muscular men out there.
With the right plan and the right discipline, you can get seriously shredded in just 28 days.
Here's what has changed, and what has been learned.
These training vets take "old man strength" to another level, and they have some wisdom to share.
The straight-arm plank and raise is a full-body functional exercise designed to improve core stability and strength.
No equipment necessary for this bodyweight workout.
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