Correlação entre o desempenho na transferência de sentado para de pé e o nível de atividade física de indivíduos acometidos pelo acidente vascular encefálico

Abstract

Amongthedisabilitiespresent in individualsaffectedbystrokewecanmentiontheimpairmentofmobilitythataffectsthefunctionoftheseindividualsandcontributestothereductionoftheirphysicalactivitylevel.Theabilityto move fromsittingtostandingiscommonlyaffectedafterstroke, andthisisanimportanttask for independence. Despitetheimportanceofthistask, littleisknownabout its influenceonthephysicalactivitylevelof post-strokeindividuals.Thus, theobjectivesofthepresentstudywere: 1) toinvestigatetheassociationbetween performance in thetransferfromsittingtostandingandthephysicalactivitylevelofindividuals in thechronicphaseafterstroke; 2) toinvestigatetheassociationbetweenthedegreeof motor impairmentandlowerlimbmusclestrengthandthephysicalactivityleveloftheseindividuals.This is an exploratory cross-sectional study conducted with individuals in the chronic phase of stroke in the city of Belo Horizonte/MG. The same trained examiner performed the evaluations. To respond to the primary objective of the study, information was collected on performance in the transfer from sitting to standing by applying the five-repetition raise/sit test in the chair and the physical activity level using the SenseWear activity monitor. To respond to the secondary objective, information on the degree of motor impairment of the lower limbs was collected using the Fugl-Meyer Scale and lower limb muscle strength using portable dynamometry. Descriptive statistics and Spearman's correlation coefficient were used for the analyzes. The significance level established was α=5%. Fifty-twoindividualswith a mean age of 57 ± 14 yearsand a medianstrokedurationof 41 ± 58 monthswereincluded. Therewas a significant, negative, low-magnitude correlationbetweenseatedtostandingtransferandphysicalactivitylevel (rs = -0.38; p = 0.005) and a significant, positive, low-magnitude correlationbetweenmusclestrengthonthepareticsideandthephysicalactivitylevel (rs = 0.31; p = 0.03). Therewas no significantcorrelationbetweentheotherinvestigatedassociations (0.11≤p≤0.47).The resultsfound in thepresentstudydemonstratedanassociationbetweenthe performance ofsittingtostandingtransferenceandthepareticlowerlimbmusclestrengthandthephysicalactivitylevel in individuals in thechronicphaseofstroke, whichindicatesthatthesetwooutcomesexplain, atleast in part, thephysicalactivitylevelofindividuals, althoughotherfactorsmayhavegreaterinfluence. It isworthmentioningtheneed for largerstudies (withgreatersamplesizeandvariability) thatinvestigatetheassociationofdifferentaspectsofmobility, such as transfers, andthephysicalactivitylevelofsubjectswithstroke, as bothoutcomes are extremelyimportant for theindependenceandqualityoflifeofthispopulation. The reportedresults are expectedtoguide future studies as thisisthefirststudythataimedtoinvestigatetheassociationbetweenperformance in thetransferfromsittingtostandingandthephysicalactivitylevelin individualswithstroke.