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L4 - Lumbar - Pitcher Lunge Russian Twist
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L4 - Lumbar - Sweedish Ball Exchange
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L4 - Lumbar - Leg Extensions
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L4 - Lumbar - Lower Single Leg Winshield Wiper
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L4 - Lumbar - Lat Medball Slam
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L4 - Lumbar - Lat Lunge Rotational Twist
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L4 - Lumbar - Pitchers Lunge into Slam
