At some point during training you must have noticed a sticking point where certain ranges of motion feel disproportionately challenging. The article explains that this relates to the length-tension relationship of muscles. The core concept presented is that muscles demonstrate varying strength levels depending on their length. Muscles at longer or shorter lengths tend to be weaker. Muscles placed at mid-range length are as strong (and often as stable) as can be. The article uses the biceps curl as an example, categorizing variations by muscle length: shortened (high cable curl), mid-range (standing dumbbell curl), and lengthened (face-away low cable curl). The piece concludes with three actionable steps: analyzing your program, applying functional anatomy and biomechanics principles, and identifying each exercise's position on the length-tension continuum. This approach aims to eliminate redundancies and optimize training results.
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