I tempi Lenti nella Fase Eccentrica di una Ripetizione,aumentano la Forza Attiva,che a sua volta porta ad un Aumento del Diametro delle Fibre Muscolari.
I Tempi Veloci invece sviluppano la Forza Passiva,che causa un Aumento della Lunghezza delle Fibre.
L'Ipertrofia viene spesso Misurata dai cambiamenti dalla Aree a Sezione Trasversali del Muscolo,questo permette ai Tempi Lenti in Eccentrica di esser identificati come Stimolo per una Maggior Crescita Muscolare.
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