HIGH-INTENSITY FUNCTIONAL TRAINING CHRONIC EFFECT ON LOAD TRAINING AND PERFORMANCE BETWEEN DIFFERENT LEVELS CONDITIONING
Keywords:Perceivedeffort; Injury; Performance; Workload.
High intensityfunctional training (HIFT) ischaracterizedby high volumes and high training intensitieswithorwithoutanyrecoveryintervalbetween sets andwithconstantlyvariedexercises. HIFTaimstoincreasethephysicalcapabilitiesofpractitioners, howeverstrategies are neededto minimize injury rates andenhance performance. Therefore, theaimofthepresentstudywasto monitor andanalyzethedispositionoftheinternal training load (ITL), toverifythechroniceffectoftheHIFTonthe performance betweenthedifferentconditioninglevels, toanalyzetheasymmetryindicesbetweenlimbsandtoverifytherelationbetweenasymmetries. and performance measures. The sample consistedof 31 HIFTpractitioners (14 menand 17 women) withdifferent fitness levels. The sum andaverageweeklyloadswererecorded for thecalculationofmonotony, strainandacute:chronicworkloadratio(ACWR). In addition, practitionersperformed bilateral (BCMJ) and unilateral (UCMJ) vertical jump, vertical jump (SJ), sprint, andhandgripstrengthtests. The ITLpresentedvariationsofgreaterandsmaller magnitude betweenweekswithdifferences in monotonyandstrainonly for beginners. Additionally, onlythebeginnergroupshowedanincrease in performance. It wasobservedthatasymmetriesbetweenlimbs do notseemtoberelatedtolower performance in thetestsofspeedandmusclepower. However, asymmetriesabove 15% mayincreasethe chance ofinjury. Therefore, ITLmonitoringshouldbeindividualizedandcoachesshouldstriveto improve thephysicalcapacitiesofintermediateandadvanced. In addition, whenthegoalisto maximize performance in the training program, coachesshouldprioritizetasksthatincrease bilateral vertical jump over unilateral jump.