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Specificity-Review of Possible Adaptations

Specificity-Review of Possible Adaptations. Hypertrophy: Increase in cross-sectional area Sarcoplasmic Hypertrophy An increase in the volume of the non contractile protein and semi-fluid plasma between muscle fibers

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Specificity-Review of Possible Adaptations

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  1. Specificity-Review of Possible Adaptations • Hypertrophy: Increase in cross-sectional area • Sarcoplasmic Hypertrophy • An increase in the volume of the non contractile protein and semi-fluid plasma between muscle fibers • RESULTMore endurance, but no increase in strength with realized decrease in relative strength • Sarcomeric Hypertrophy • An increase in the number and size of contractile units per myofibril • RESULTParallel growth results in an increase in strength; whereas series growth results in increased ROM—strength results from parallel growth are correlated with an increase in myofibril density and relative strength www.athletedevelopmentsystems.com

  2. Specificity-Review of Possible Adaptations • Hyperplasia • Sarcoplasmic hyperplasia An increase in the number sarcoplasmic organelles within the fiber • RESULT Increased endurance • Myofibrillar-mitochondrial hyperplasia An increase in the number of myofibrils and mitochondria per muscle fiber • RESULT (typically) Increased strength • Increase in the actual number of fibers per muscle, growing body of indirect evidence, but little to no direct evidence www.athletedevelopmentsystems.com

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