TY - JOUR AU - Romero, Andrea Christofoletti AU - Denadai, Benedito Sergio PY - 2012/08/23 Y2 - 2024/03/29 TI - RELAÇÃO ENTRE FREQUÊNCIA CARDÍACA E LACTATO DURANTE A GINÁSTICA AERÓBICA DE BAIXO IMPACTO E O STEP JF - Revista Brasileira de Atividade Física & Saúde JA - Rev. Bras. Ativ. Fís. Saúde VL - 1 IS - 1 SE - Artigos Originais DO - 10.12820/rbafs.v.1n1p3-8 UR - https://rbafs.org.br/RBAFS/article/view/449 SP - 3-8 AB - <!--[if gte mso 9]><xml> <o:OfficeDocumentSettings> <o:AllowPNG /> </o:OfficeDocumentSettings> </xml><![endif]--><!--[if gte mso 9]><xml> <w:WordDocument> <w:View>Normal</w:View> <w:Zoom>0</w:Zoom> <w:TrackMoves /> <w:TrackFormatting /> <w:HyphenationZone>21</w:HyphenationZone> <w:PunctuationKerning /> <w:ValidateAgainstSchemas /> <w:SaveIfXMLInvalid>false</w:SaveIfXMLInvalid> <w:IgnoreMixedContent>false</w:IgnoreMixedContent> <w:AlwaysShowPlaceholderText>false</w:AlwaysShowPlaceholderText> <w:DoNotPromoteQF /> <w:LidThemeOther>PT-BR</w:LidThemeOther> <w:LidThemeAsian>X-NONE</w:LidThemeAsian> <w:LidThemeComplexScript>X-NONE</w:LidThemeComplexScript> <w:Compatibility> <w:BreakWrappedTables /> <w:SnapToGridInCell /> <w:WrapTextWithPunct /> <w:UseAsianBreakRules /> <w:DontGrowAutofit /> <w:SplitPgBreakAndParaMark /> <w:EnableOpenTypeKerning /> 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*/ table.MsoNormalTable {mso-style-name:"Tabela normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin-top:0cm; mso-para-margin-right:0cm; mso-para-margin-bottom:10.0pt; mso-para-margin-left:0cm; line-height:115%; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi; mso-fareast-language:EN-US;} --> <!--[endif] --><span style="font-size: 12.0pt; line-height: 115%; font-family: ">O objetivo deste estudo foi descrever e com­parar a relação entre frequência cardíaca (FC) e </span><span style="font-size: 12.0pt; line-height: 115%; font-family: " lang="PT">lactato </span><span style="font-size: 12.0pt; line-height: 115%; font-family: ">sanguíneo (LAC) de três diferentes moda­lidades de ginástica: a) ginástica aeróbica de bai­xo impacto e baixa intensidade (BIBI); b) ginásti­ca aeróbica de baixo impacto e alta intensidade (BIAI) e c) Step. Participaram do estudo 7 indiví­duos do sexo feminino (X= 22,5 ± 2,2 anos), </span><span style="font-size: 12.0pt; line-height: 115%; font-family: " lang="PT">frequentadoras </span><span style="font-size: 12.0pt; line-height: 115%; font-family: ">de uma academia na cidade de Rio Claro. A coreografia dos três tipos de aula não apresentou saltitos (sem fase de vôo) e os movi­mentos dos membros inferiores e superiores não ultrapassaram respectivamente, a altura do quadril e dos ombros. As aulas de BIBI e Step foram fei­tas com músicas que apresentavam 128 batidas/ minuto e a de BIAI com 144 batidas/minuto. Os três tipos de aula apresentaram a mesma </span><span style="font-size: 12.0pt; line-height: 115%; font-family: " lang="PT">sequência </span><span style="font-size: 12.0pt; line-height: 115%; font-family: ">e duração: aquecimento (5 min), parte aeróbia (30 min) e resfriamento (10 min), sendo que as coletas de FC e LAC foram feitas após 15 e 30 min do início da parte aeróbia. Os sujeitos realizaram tam­bém 3 tiros de 1200 m para a determinação da FC correspondente ao limiar aeróbio e </span><span style="font-size: 12.0pt; line-height: 115%; font-family: " lang="PT">anaeróbio </span><span style="font-size: 12.0pt; line-height: 115%; font-family: ">(res­pectivamente 2 mM e 4 mM de </span><span style="font-size: 12.0pt; line-height: 115%; font-family: " lang="PT">lactato). </span><span style="font-size: 12.0pt; line-height: 115%; font-family: ">A FC (bat/ min) e a % FCmax obtidas durante a BIBI (150,29 ± 9,98 e 75,5 ± 4.0) foram menores do que os res­pectivos valores atingidos durante as aulas de BIAI (164,4 ± 9,56 e 82,5 ± 7,45), Step (165 ± 7,98 e 82,2 ± 7,45), no limiar aeróbio (167,83 ± 9,22 e 84,0 ± 4,58) e </span><span style="font-size: 12.0pt; line-height: 115%; font-family: " lang="PT">anaeróbio </span><span style="font-size: 12.0pt; line-height: 115%; font-family: ">(185,33 ± 8,64 e 88,6 ± 6,21). Não foram encontradas diferenças entre os valores do BIAI, Step e limiar aeróbio. O </span><span style="font-size: 12.0pt; line-height: 115%; font-family: " lang="PT">lactato </span><span style="font-size: 12.0pt; line-height: 115%; font-family: ">(mM) não foi diferente ente entre as três modali­dades (BIBI = 0,93 ± 0,27 ; BIAI = 1,02 ± 0,22 e Step = 1,05 ± 0,15 mmol/l). Estes resultados suge­rem que a relação entre FC e LAC nas aulas estu­dadas é diferente do que a relação obtida durante a corrida. Deste modo, não parece adequado afirmar que um programa de treinamento de ginástica aeróbica de baixo-impacto ou Step produz adapta­ções </span><span style="font-size: 12.0pt; line-height: 115%; font-family: " lang="PT">cardiovasculares </span><span style="font-size: 12.0pt; line-height: 115%; font-family: ">e </span><span style="font-size: 12.0pt; line-height: 115%; font-family: " lang="PT">metabólicas </span><span style="font-size: 12.0pt; line-height: 115%; font-family: ">semelhantes a um treinam</span><span style="font-size: 12.0pt; line-height: 115%; font-family: ">ento de corrida que utilize a mesma FC alvo.</span> ER -