4-Minute Plank Challenge for a Stronger Core: No Equipment Workout

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*Injury disclaimer:
Not all exercises are suitable for everyone and this or any other exercise program may result in injury, To reduce this risk of injury, please consult your doctor before beginning this, or any other, physical fitness program. Any user of this program assumes the full risk of injury resulting from performing the routines presented within this video. Источник видео youtube.com/watch?v=hb1F9CwNwKQ