Skeletalmuscle is madeOfmuscledconnectivetissuefibers are elongated wStriationsama inucleaterthissnowstheidersbundlesin skeletalC1 musclescontains containsmyosin actinhead putsthinpast majority ofthinfilamentthickfilament jpiopyppysoitsepformyosintail formsthickfilamenttroponinm sinSC when muscle contractionoccursfibersslidepast oneanother thus theydonotchange in lengthelleniti appearstheydommosinheadalachestothin lamentis pulled Closertomlinea zonenearly disappears iband decreaseinlengthelerip ozoneofoverlap increasessano nicksano nin electrical excitationOfamuscle fiber contraction cycle continuesexcitationcontraction until calcium incellreainscoupling high.ithottropomyosinbeginsmuscle fiber to reappearcontractionI hydrolysisaformcrossbridge f offerspowerstrokedetachmentMusclediameters i s s e a force ofcontractionM SinATPaseconcentric speed ofcontractionmuscleshortens muscleisdevelopingforcenotshortening 3 Methods OfATPgeneration fatigabilityeccenimusclelengthens recruitment ofmusclefibertypesc aiÉ ce dodinelmsed