“Challenging those movements with negatives, isometric holds and full repetitions.”
The post 5 Negative and Isometric Exercises to Strengthen Your Core and Abs from BK Gudmundsson appeared first on BOXROX.
“Challenging those movements with negatives, isometric holds and full repetitions.”
The post 5 Negative and Isometric Exercises to Strengthen Your Core and Abs from BK Gudmundsson appeared first on BOXROX.
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