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1.
Int J Sports Phys Ther ; 13(1): 104-113, 2018 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-29484247

RESUMO

Background: Self-massage is a ubiquitous intervention similar to massage, but performed by the recipient him- or herself rather than by a therapist, most often using a tool (e.g., foam roller, roller massager). Self-massage has been found to have a wide range of effects. It is particularly known for increasing flexibility acutely, although not always. The variability of the results in previous studies may potentially be a function of the tool used. Recent findings also suggest that self-massage exerts global effects. Therefore, increased flexibility should be expected in the areas adjacent to the ones treated. Purpose: To investigate the acute effects of foam rolling and rolling massage of anterior thigh on hip range-of-motion (ROM) - i.e., hip extension and hip flexion - in trained men. Methods: Eighteen recreationally active, resistance trained males visited the lab on two occasions over a 4-day period separated by at least a day. Each session included two baseline ROM measures of passive hip flexion and extension taken in a randomized fashion. Recording of baseline measures was followed by the intervention of the day, which was either foam rolling or rolling massage of the anterior thigh as per randomization. Immediately post intervention, passive hip flexion and hip extension ROM were reassessed. In order to assess the time course of improvements in ROM, hip flexion and hip extension ROM were reevaluated at 10, 20, and 30 minutes post-intervention. Results: Hip flexion and hip extension ROM increased immediately following both interventions (foam rolling or roller massager) and remained increased for 30 minutes post intervention. Foam rolling was statistically superior in improving hip flexion and hip extension ROM immediately post intervention. However, immediately post-intervention was the only time point that measurements exceeded the minimum detectable change for both interventions. Conclusion: Both foam rolling and rolling massage appear to be effective interventions for improving hip flexion and extension ROM when applied to the anterior thigh, but the observed effects are transient in nature. Level of evidence: 2b.

2.
J Bodyw Mov Ther ; 21(1): 223-226, 2017 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-28167184

RESUMO

Increases in joint range of motion may be beneficial in both improving performance and reducing the risk of injury. The purpose of this study was to investigate short-term changes in passive hip flexion (HF) and extension (HE) after foam rolling (FR) and roller massage (RM) durations of 60 and 120s. Ten recreationally active men (27.6 ± 2.4 years old; 164.8 ± 6.6 cm; 62.2 ± 8.0 kg; 24.2 ± 2.1 m2/kg) were recruited for this study. Subjects performed foam rolling (FR) and roller massage (RM) on the hamstrings for 60 (FR60 and RM60) and 120 (FR120 and RM120) seconds. Significant differences between FR120 and RM60 were observed in both HF (p < 0.001) and HE (p < 0.001) suggesting an intervention (roller style) effect. Furthermore, significant differences (p < 0.001) between RM60 and RM120 suggest a dosage based response. Thus, the findings indicate that different roller type or rolling volume may affect range-of-motion.


Assuntos
Massagem/métodos , Músculo Esquelético/fisiologia , Amplitude de Movimento Articular/fisiologia , Autocuidado/métodos , Adulto , Humanos , Masculino , Projetos Piloto
3.
Int J Sports Phys Ther ; 12(1): 76-84, 2017 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-28217418

RESUMO

BACKGROUND: Foam rollers, or other similar devices, are a method for acutely increasing range of motion, but in contrast to static stretching, do not appear to have detrimental effects on neuromuscular performance. PURPOSE: The purpose of this study was to investigate the effects of different volumes (60 and 120 seconds) of foam rolling of the hamstrings during the inter-set rest period on repetition performance of the knee extension exercise. METHODS: Twenty-five recreationally active females were recruited for the study (27.8 ± 3.6 years, 168.4 ± 7.2 cm, 69.1 ± 10.2 kg, 27.2 ± 2.1 m2/kg). Initially, subjects underwent a ten-repetition maximum testing and retesting, respectively. Thereafter, the experiment involved three sets of knee extensions with a pre-determined 10 RM load to concentric failure with the goal of completing the maximum number of repetitions. During the inter-set rest period, either passive rest or foam rolling of different durations (60 and 120 seconds) in a randomized order was employed. RESULTS: Ninety-five percent confidence intervals revealed dose-dependent, detrimental effects, with more time spent foam rolling resulting in fewer repetitions (Cohen's d of 2.0 and 1.2 for 120 and 60 seconds, respectively, in comparison with passive rest). CONCLUSION: The results of the present study suggest that more inter-set foam rolling applied to the antagonist muscle group is detrimental to the ability to continually produce force. The finding that inter-set foam rolling of the antagonist muscle group decreases maximum repetition performance has implications for foam rolling prescription and implementation, in both rehabilitation and athletic populations. LEVEL OF EVIDENCE: 2b.

4.
Int J Sports Phys Ther ; 12(1): 94-104, 2017 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-28217420

RESUMO

BACKGROUND: The Functional Movement Screen (FMS™) is a battery of tests designed to assess movement competency; the overhead deep squat test, specifically, has been shown to be an accurate predictor of overall FMS™ scores. Self-massage (SM) is a ubiquitous warm-up utilized to increase joint range of motion and, therefore, may be effective for improving performance of the overhead deep squat test. PURPOSE: To examine how different doses (30, 60, 90, and 120 seconds) of SM of different areas of the body (plantar fascia, latissimus dorsi, and lateral thigh) affects the score obtained on an overhead deep squat test. METHODS: Twenty recreationally active females were recruited to be tested on four occasions: sessions one and two consisted of baseline testing, session three consisted of SM applied to the lateral thigh, and session four consisted of SM applied to the lateral torso and plantar fascia. RESULTS: In all SM conditions, at least 90 seconds was required for a change in deep squat score from baseline; therefore, it is concluded that SM the lateral torso, plantar fascia, and lateral thigh for 90 seconds or more are effective interventions for acutely improving overhead deep squat scores. CONCLUSION: Self-massage appears to be an effective modality for inducing acute improvements in the performance of the FMS™ overhead deep squat in all conditions tested. LEVEL OF EVIDENCE: 2b.

5.
Motriz rev. educ. fís. (Impr.) ; 22(3): 198-204, July-Sept. 2016. tab
Artigo em Inglês | LILACS | ID: lil-789097

RESUMO

The aim of this study was to compare the acute effects of low-intensity (LI) resistance exercise (RE) with continuous blood flow restriction (CBFR) and intermittent blood flow restriction (IBFR) on systolic blood pressure (SBP), diastolic blood pressure (DBP), and mean arterial pressure (MAP). After a one-repetition maximum test, 10 normotensive recreationally trained men performed three experimental protocols. In the three RE protocols, increases in SBP, DBP, and MAP were observed immediately after exercise, but the effect sizes (ESs) were greater for the LI + CBFR and high-intensity protocols. There were hypotensive effects on SBP, DBP, and MAP in all three protocols; however, the effects on MAP lasted longer for the LI + IBFR and LI + CBFR protocols. These long-lasting hypotensive effects on DBP and MAP occurred in all three protocols. Thus, we conclude that the post exercise hypotensive effects on SBP, DBP, and MAP appear to occur in all three RE protocols, with the effect on SBP being longer in the LI + IBFR and LI + CBFR protocols


Assuntos
Humanos , Masculino , Adulto , Treinamento de Resistência , Hipotensão
6.
Conscientiae saúde (Impr.) ; 14(1): 63-71, 31 mar. 2015. tab, ilus
Artigo em Português | LILACS-Express | ID: biblio-658

RESUMO

INTRODUÇÃO: A ordem dos exercícios pode afetar significativamente o desempenho de força muscular. OBJETIVO: Comparar o desempenho de repetições máximas e percepção subjetiva de esforço adotando diferentes ordens de exercícios. MÉTODOS: Trinta e seis homens destreinados (27,86 ± 2,89 anos) realizaram duas sessões, a saber: SEQA ­ com a seguinte sequência: supino reto (SR), puxada alta (PA), desenvolvimento (DS), rosca bíceps (RB), rosca tríceps (RT), leg press (LP), cadeira extensora (CE) e mesa flexora (MF); e SEQB ­ com ordem inversa adotada para RT, RB, DS, PA, SR, MF, CE, LP. RESULTADOS: Os exercícios SR, PA, RB e RT mostraram valores significativamente maiores no número total de repetições na SEQA. Quanto a MF, CE, LP, não houve diferença significativa. A percepção sub-jetiva de esforço apresentou diferença para os seguintes exercícios: MF, RB e RT entre as sequências. CONCLUSÃO: Dessa forma, os grupos musculares priorizados devem ser exercitados no início das sequências.


INTRODUCTION: Exercise order may significantly affect muscle strength per-formance. OBJECTIVE: To compare the maximum repetition performance and perceived exertion adopting different orders exercises. METHODS: Thirty-six untrained men (27.86 ± 2.89 years) performed two exercise sequences: SEQA ­ the order was: bench press (BP), lat pull down (LPD), shoulder press (SP), biceps curl (BC), triceps curl (TC), leg press (LP), leg extension (LE) and leg curl (LC); SEQB ­ the reverse order was adopted to TC, BC, SP, LPD, BP, LC, LE, LP. Results: BP, LPD, BC and TC repetition performance was significantly higher during SEQA when compared to SEQB. However, no differences were noted for LC, LE and LP. The perceived exertion showed differences for the following exercises: LC, BC and TC. CONCLUSION: Therefore, the main muscle groups should be exercised at the beginning of training session

7.
Rev. bras. ciênc. mov ; 22(2): 19-26, jan.-mar.2014. tab, ilus
Artigo em Português | LILACS | ID: lil-733936

RESUMO

Diversos estudos observaram redução significativa no desempenho de repetições máximas após aplicação do alongamento estático (AE). O objetivo do estudo foi verificar o efeito agudo do AE nos antagonistas sobre o desempenho de repetições dos agonistas. Participaram do estudo 11 indivíduos com experiência prévia em treinamento de força (24,18 ± 3,54 anos de idade, 75,21 ± 9,32kg, 177 ± 0,71 cm). Em quatro sessões foram realizados 4 protocolos experimentais: MFSA - mesa flexora sem AE; MFA - mesa flexora após AE nos antagonistas; RBSA - rosca bíceps no banco scott sem AE; RBA - rosca bíceps após AE nos antagonistas. Na estatística inferencial foi aplicado o teste de Kolmogorov-Smirnov e o Teste T pareado para comparar as repetições completadas. Para todas as análises inferenciais considerou-se o valor de p <.05. Foi observado aumento significativo (p = .011) no número de repetições no RBA (12,45 ± 1,96) comparado ao RBSA (11,18 ± 1,40). Também se verificou aumento significativo (p =.043) no MFA (14,72 ± 1,55) comparada a MFSA (13,18 ± 2,89). Para o MFA o EF foi classificado como pequeno ( .53). Como visto, o AE aplicado nos antagonistas pode promover melhora significativa no desempenho de repetições dos agonistas.


Several studies have found significant reductions on maximal repetition performance after static stretching (SS). The purpose of this study was to investigate the acute effect of AS on repetitions performed by the agonist muscles. The study included 11 individuals with previous experience in resistance training (24.18 ± 3.54 years, 75.21 ± 9.32kg, 177 ± 0.71cm). In four sessions were performed 4 experimental protocols (48h apart): LC - leg curl without AS; LCS: leg curl after AS; AC - arm curl on scott seat without AS; ACS - arm curl on scott seat after AS. The Kolmogorov-Smirnov test and paired T test were adopted to compare the differences between protocols. The alpha value of p< .05 was adopted for all inferential analysis. Significant increases (p =.011) were observed in the number of repetitions in the ACS (12.45 ± 1.96) compared to the AC (11.18 ± 1.40). It was also found a significant increase (p =.043) in LCS (14.72 ± 1.55) compared to LC (13.18 ± 2.89). The EF for LCS was classified as small (EF = .53). Therefore, the AS can promote significant improvement in repetitions performance of the agonists.


Assuntos
Humanos , Masculino , Adulto Jovem , Força Muscular , Exercícios de Alongamento Muscular , Capacitação , Atividade Motora
8.
Acta sci., Health sci ; 36(1): 51-57, jan.-jun. 2014.
Artigo em Inglês | LILACS | ID: biblio-833421

RESUMO

This study investigated the acute effect of static stretching methods (SS) and proprioceptive neuromuscular facilitation (PNF) on the static muscle strength (SMS). Eleven young male subjects with strength training experience, performed 3 tests with a 48h interval between them, randomly selected, where each one subject carried out all procedures: a) hand grip without stretching; b) hand grip preceded by static stretching of wrist flexors muscles; c) hand grip preceded by PNF stretching of wrist flexors muscles. The Shapiro-Wilk test verified the normality of data, and a one-way ANOVA with repeated measures, followed by Tukey's post hoc test, evaluated the differences between the groups. The significance was set at p < 0.05. Significant differences were detected between control and static stretching protocols (35.4±11.30 vs. 30.2±9.18 kg N-1; p < 0.05). The same was observed between control and PNF stretching protocols (35.4±11.30 vs. 29.1±10.05 kg N-1; p < 0.01). However, no statistical difference was found for static and FNP stretching protocols (30.2±9.18 vs. 29.1±10.05 kg N-1; p > 0.05). In conclusion, both stretching methods had caused negative effects on isometric strength, reducing its levels.


. O presente estudo objetivou investigar o efeito agudo dos métodos de alongamento estático (AE) e facilitação neuromuscular proprioceptiva (FNP) sobre a força muscular estática (FME). Foram realizados, em 11 homens jovens com experiência prévia em treinamento de força, três testes com intervalo de 48h entre a aplicação dos mesmos, selecionados aleatoriamente, fazendo com que cada sujeito realizasse todas as técnicas, em rodízio: a) teste de preensão manual sem alongamento; b) teste de preensão manual precedido por alongamento estático dos músculos flexores de punho; c) teste de preensão manual precedido por FNP dos músculos flexores de punho. O teste de Shapiro-Wilk foi realizado para avaliar a normalidade dos dados e a one-way Anova com medida repetida, seguida por post-hoc de Tukey para análise das diferenças entre grupos. A significância adotada foi alpha p < 0,05. Conforme os resultados, entre os protocolos SA e AE, foram encontradas diferenças significativas na produção de força isométrica (35,4±11,30 vs. 30,2±9,18 kg N-1; p < 0,05). Entre SA e FNP, também foram encontradas diferenças significativas (35,4±11,30 vs. 29,1±10,05 kg N-1; p < 0,001). Todavia, diferenças significativas não foram observadas entre AE e FNP (30,2±9,18 vs. 29,1±10,05 kg N-1; p > 0,05). Os métodos de AE e FNP provocam efeito agudo sobre a FME reduzindo os níveis desta capacidade física.


Assuntos
Humanos , Masculino , Adulto , Força da Mão , Dinamômetro de Força Muscular , Exercícios de Alongamento Muscular
9.
Acta sci., Health sci ; 36(1): 15-23, jan.-jun. 2014. tab
Artigo em Inglês | LILACS | ID: biblio-833594

RESUMO

This study examined the effects of 12 weeks of resistance training (RT) on binge eating, body composition and blood variables and their correlations in 34 sedentary adults with type II diabetes. The participants aged 58.94 ± 10.66, had body weight of 71.62 ± 11.85 and BMI of 29.64 ± 4.27. Blood samples were collected for analysis of serum leptin, glucose, insulin, LDL, HDL, total cholesterol and triglyceride. The binge eating was assessed by the binge eating scale and the body composition by bioelectrical impedance. The training included three weekly sessions for 12 weeks, with three sets from 12 to 15 repetitions for the main muscle groups, and interval from 1 to 2 minutes between the sets. A significant decrease was found for the binge eating, body weight, BMI, fat percentage, and fat weight. As for the blood variables, there was a significant reduction in leptin; non-significant reductions in glucose, total cholesterol, LDL and triglycerides; as well a significant increase in HDL and non-significant increase in insulin. In conclusion the 12 weeks of RT proved to be enough to decrease the binge eating, to positively adjust the body composition and to modify the blood profile, demonstrating an association at a lower or higher level between these variables.


Este estudo analisou os efeitos de 12 semanas de treinamento resistido (TR) sobre as variáveis de compulsão alimentar, composição corporal e sanguíneas, e suas correlações em diabéticos tipo II. Participaram 34 diabéticos tipo II adultos e sedentários com idade de 58,94 ± 10,66, peso corporal 71,62 ± 11,85 e IMC 29,64 ± 4,27. Coletou-se amostras sanguíneas para análise de leptina, glicose, Insulina, LDL, HDL, Colesterol Total e Triglicerídeo. A compulsão alimentar foi avaliada através da escala de compulsão alimentar periódica e a composição corporal por meio da bioimpedância. O treinamento consistiu três sessões semanais durante 12 semanas, com três séries de 12 a 15 repetições para os grandes grupos musculares, e intervalo de 1 a 2 minutos entre as séries. Verificou-se diminuições significativas na compulsão alimentar; peso corporal; IMC; percentual de gordura; e peso gordo. Nas variáveis sanguíneas houve redução significativa da leptina; reduções não significativas na Glicose; Colesterol Total; Triglicerídeos e LDL; bem como aumento significativo no HDL e aumento não significativo da insulina. Conclui-se que 12 semanas de TR são suficientes para diminuir a compulsão alimentar, adaptar positivamente a composição corporal e modificar o perfil sanguíneo, mostrando uma associação em maior ou menor grau entre essas variáveis.


Assuntos
Humanos , Masculino , Feminino , Pessoa de Meia-Idade , Transtorno da Compulsão Alimentar , Composição Corporal , Diabetes Mellitus Tipo 2
12.
Acta sci., Health sci ; 35(2): 181-186, jul. -dez. 2013. tab, figs
Artigo em Inglês | LILACS | ID: biblio-833627

RESUMO

The aim of this study was to investigate adaptations acute heart rate (HR) and oxygen consumption (VO2) in an experimental protocol of step training with different combinations of platform height (15.2, 20.3 and 25.4 cm) and musical rhythms (125, 135 and 145 bpm). Thirty-five women were randomly selected, (mean ± DP) aged 21.6 ± 1.8 years, body weight of 57.8 ± 8.2 kg, height of 162.6 ± 6.8 cm, body mass index of 21.8 ± 2.5 kg m -2 and fat percentage (% Fat) of 24.8 ± 4.4%, with at least six months experience in step training sessions, and a frequency of at least two days a week. Techniques of descriptive and inferential statistics were employed. A significant difference was detected for the HR and VO2 in relation to the increase in step platform height and in musical rhythm for all the combinations, except for three situations. From the obtained results, we can infer that the cardiovascular and metabolic responses increase or decrease according to the musical rhythm and/or platform height.


O objetivo do presente estudo foi verificar adaptações agudas da frequência cardíaca (FC) e do consumo de oxigênio (VO2) em um protocolo experimental de 'step training' com diferentes combinações de altura de plataforma (15,2, 20,3 e 25,4 cm) e ritmos musicais (125, 135 e 145 bpm). Foram selecionadas randomicamente 35 mulheres (média ± DP) idade de 21,6 ± 1,8 anos, peso corporal de 57,8 ± 8,2 kg, estatura de 162,6 ± 6,8 cm, índice de massa corporal (IMC) de 21,8 ± 2,5 kg m-2 e percentual de gordura (% G) de 24,8 ± 4,4%, com no mínimo seis meses de experiência nas aulas de 'step training' e com frequência de pelo menos dois dias por semana. Foram aplicadas as técnicas da estatística descritiva e da estatística de inferência. Foi observada diferença significativa para FC e o VO2 em relação à ocorrência do aumento da altura do 'step' e em relação ao aumento do ritmo musical para todas as combinações, exceto entre três situações. A partir dos achados do presente estudo pode-se inferir que as respostas cardiovasculares e metabólicas aumentam ou diminuem ao se elevar ou atenuar o ritmo musical e/ou a altura da plataforma.


Assuntos
Educação Física e Treinamento , Aptidão Física , Perda de Peso , Mulheres
13.
J Hum Kinet ; 36: 127-35, 2013 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-23717362

RESUMO

Adequate levels of strength and flexibility are important for the promotion and maintenance of health and functional autonomy as well as safe and effective sports participation. The aim of the present study was to analyze the effects of 8 weeks of strength training with or without inter-set static stretching on strength, flexibility and hormonal adaptations of trained men. Sixteen trained men were randomly divided into 2 groups: the static stretching group (SSG) and passive interval group (PIG). All participants performed 24 training sessions 3 times a week. The test and retest of 8RM, strength, flexibility, cortisol and growth hormone concentration in pre and post test conditions were also evaluated. To compare the differences between and within groups in pre- and post-training tests, ANOVA with repeated measures was performed (SSGpre x SSGpost; PIGpre x PIGpost; SSGpost x PIGpost). An alpha level of p<0.05 was considered statistically significant for all comparisons. Both groups showed significant increases in strength (SSGpre vs. SSGpost; PIGpre vs. PIGpost) in the same exercises for leg extension (LE) and Low Row (LR). Specifically, in the SSG group, the parameters for LE were (p = 0.0015 and ES = 2.28 - Large), and the parameters for LR were (p = 0.002 and ES = 1.95 - Large). Moreover, in the PIG group, the parameters for LE were (p = 0.009 and ES = 1.95 - Large), and the parameters for LR were (p = 0.0001 and ES = 2.88 - Large). No differences were found between the groups (SSGpost vs. PIGpost). Both groups showed significant increases in flexibility but in different joints (SSGpre vs. SSGpost; PIGpre vs. PIGpost). In the SSG group, only three joints showed significant increases in flexibility: shoulder extension (p = 0.004 and ES = 1.76 - Large), torso flexion (p = 0.002 and ES = 2.36 - Large), and hip flexion (p = 0.001 and ES = 1.79 -Large). In the PIG group, only three joints showed increases in flexibility: horizontal shoulder abduction (p = 0.003 and ES = 2.07 - Large), hip flexion (p = 0.001 and ES = 2.39 - Large), and hip extension (p = 0.02 and ES = 1.79 - Large). In-between group analyses (SSGpost x PIGpost) revealed differences in two joints: shoulder extension (p = 0.001) and horizontal shoulder abduction (p = 0.001). Hormonal profiles showed no significant differences in cortisol secretion or growth hormone concentration. In conclusion, both studied strength protocols (with and without inter-set static stretching) resulted in flexibility and strength gains without an effect on the anabolic and catabolic hormonal profile.

15.
J Strength Cond Res ; 27(9): 2465-72, 2013 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-23254543

RESUMO

Improving the process of how physical performance is enhanced is one of the main topics evaluated by physiologists. This process often involves athletes and nonathletic populations. The purpose of this study was to assess the chronic response to 10 weeks of static stretching exercises carried out before and during a strength training program for 8 exercises on an 8 repetition maximum (8RM) test performance, and basal serum insulinlike growth factor (IGF-1) levels. Thirty recreationally trained volunteers were randomly assigned to 1 of 3 training groups: (a) SBST (performed a warm-up with a static stretching protocol before each strength training session); (b) SDST (before each training set, a static stretching exercise was performed); and (c) OST (entire session was performed without any type of stretching exercise). Strength and IGF-1 levels were collected at the beginning (pretest) and end (posttest) of the entire experimental procedure. All the exercises showed a significant increase in muscle strength for the OST group. However, the results revealed a significant increase in the muscle strength for only a few exercises in the SBST (LP, LE) and SDST (LP) experimental conditions. Significant statistical differences were found between SBST and SDST for all the exercises in the OST experimental condition. Furthermore, the IGF-1 expression showed no significant differences in the intragroup analysis. However, the OST group showed higher values (p < 0.05) in the posttest when compared with those of the other groups (increased significantly only in the OST experimental condition). It has been concluded that, although all the groups showed an increase in muscular strength, the strength training performed without any type of stretching exercise, regardless of whether the stretching is performed before or during the lifting session, can more effectively increase muscle strength and basal serum IGF-1 levels. It was concluded that strength training, with or without the use of stretching exercises, increased muscular strength in the studied groups, and can induce an increase in IGF-1 levels.


Assuntos
Fator de Crescimento Insulin-Like I/análise , Força Muscular/fisiologia , Exercícios de Alongamento Muscular , Treinamento de Resistência , Adulto , Humanos , Fator de Crescimento Insulin-Like I/fisiologia , Exercícios de Alongamento Muscular/métodos , Aptidão Física/fisiologia , Treinamento de Resistência/métodos
17.
J Hum Kinet ; 34: 105-11, 2012 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-23487480

RESUMO

The aim of this study was to compare the influence of including dropset exercises in different orders, both in the pre-exhaustion, as in the post-exhaustion method, and to analyze the performance of total work on the bench press and chest flying exercise. Twenty-two male volunteers with a recreational experience in ST were evaluated in six visits in non-consecutive days, at approximately the same time of the day. During the first visit, subjects signed an informed consent form and underwent an anthropometric evaluation and testing of 10RM. The second visit involved a re-test of 10RM. From third to sixth visits, the subjects were randomly grouped into the following experimental situations: 3rd Visit (V3 - Post-exhaustion): Bench Press (dropset) + Chest Flying (10RM); 4th visit (V4 - Post-exhaustion): Bench Press (10RM) + Chest Flying (dropset); 5th Visit (V5 - pre-exhaustion): Chest Flying (dropset) + Bench Press (10RM); 6th Visit (V6 - pre-exhaustion): Chest Flying (10RM) + Bench Press (dropset). The protocol of dropset was performed with 3 sets and no rest intervals 10RM + 80% 10RM + 60% 10RM. An interval between sets was adopted for 2 minutes. The primary results showed a significant difference in Total Work for visits V3 and V6, which was included in the dropset multiarticular exercises. These results suggest that the exercise order with the dropset method in the pre-exhaustion or post-exhaustion methods had an acute influence on Total Work.

18.
Rev. bras. cardiol. (Impr.) ; 24(6): 354-361, nov.-dez. 2011. tab, graf
Artigo em Português | LILACS | ID: lil-614226

RESUMO

Fundamentos: Existem poucos estudos investigando a hipotensão pós-exercício (HPE) em idosos hipertensos. Objetivo: Verificar a HPE do exercício resistido (ER)realizado em diferentes intensidades por idosos hipertensos estágio I. Métodos: Dez homens, hipertensos, estágio I, com 66,0±4,4anos, pós-teste de 10RM e familiarização com os exercícios, realizaram dois treinamentos: a 80% e 100% de 10RM, com intervalo de 48h. Durante a atividade e até 24h depois, os sujeitos foram controlados pela monitorização ambulatorial da pressão arterial (MAPA). Foram avaliados: pressão arterial sistólica e diastólica e pressão de pulso. Para verificar a normalidade dos dados utilizou-se o teste Shapiro-Wilk. Na descrição das variáveis utilizou-se estatística descritiva. Para verificar a diferença das médias nas variáveis estudadas entre os momentos pré-esforço vigília, esforço e pós-esforço-vigília, pós-esforço-sono nas duas intensidades, foi utilizada a ANOVA para medidas repetidas, seguido do teste post-hoc Tukey HSD (p<0,05).Resultados: Verificou-se HPE em idosos hipertensos nomomento pós-esforço-vigília nas diferentes intensidades realizadas, sendo significativamente diferente do momento pré-esforço-vigília apenas a 80% de 10RM. Conclusão: Os resultados encontrados sugerem que uma única sessão de ER realizado em diferentes intensidades (80% e 100% de 10RM) pode promover HPE em indivíduos idosos hipertensos (estágio I). Trabalhar em intensidades menores, como 80% de 10RM, pode ser mais eficiente nessas reduções.


Assuntos
Humanos , Pressão Arterial , Exercício , Hipotensão/complicações , Hipotensão/diagnóstico
19.
Acta sci., Health sci ; 33(1): 59-64, jan.-jun. 2011. ilus, tab, graf
Artigo em Português | LILACS | ID: lil-590360

RESUMO

Este estudo verificou o comportamento da flexibilidade em homens de uma e três repetições de 10 segundos do método estático. Os 91 indivíduos foram divididos em três grupos: controle GC (n = 16 ± 23,5 anos); grupo de uma repetição G1 (n = 38 ± 23,8 anos) que foi submetido ao método estático, utilizando uma repetição com duração de 10 segundos de permanência e o grupo de estudo de três repetições G3 (n = 37 ± 22,5 anos) que repetia três vezes cada movimento durante 10 segundos com 10 segundos de intervalo entre eles: A flexibilidade de abdução do ombro (AO) e a flexão de quadril (FQ) foram aferidas por meio da goniometria, respeitando o protocolo do Labifie. Foi utilizado o teste t-Student pareado para verificar as diferenças de média intragrupos. A análise de variância (ANOVA one way), por meio do modelo matemático do índice de razão (Raz = pós-teste/pré-teste) mostrou aumentos significativos para o G3 quando comparado ao G1 e o GC nos movimentos AO e FQ. A AO apresentou diferença significativa entre G1 x G3; G3 x GC não demonstrando diferença entre G1 x GC. Já na FQ, observou-se diferença significativa entre todos os grupos. Conclui-se que o método proposto foi mais eficiente quando repetido três vezes.


This study analyzed the flexibility of one and three ten-second repetitions using the static method. Ninety-one men were divided into three groups: CG, control (n = 16 ± 23.5 years of age); G1, one-repetition group (n = 38 ± 23.8 years of age), which was subjected to the static method, doing one repetition with ten seconds of residence; and G3, a study group with three repetitions (n = 37 ± 22.5 years of age), repeating each movement three times for ten seconds with a ten-second interval between them: the flexibility of shoulder abduction (SA) and hip flexor (HF) were measured by goniometry with the protocol of LABIFIE. We used Student’s paired t-test to verify the differences in intragroup average. The analysis of variance (one-way ANOVA), through the ratio index mathematical model (Rat = post-test/pre-test) showed significant increases for G3 compared to G1 and CG movement in SA and HF. SA showed significant difference between G1 x G3; G3 x GC showed no difference between G1 x GC. In HF, there was a significant difference between all groups. It is concluded that the proposed method was more effective when repeated three times.


Assuntos
Humanos , Masculino , Adulto , Exercício , Atividade Motora , Esforço Físico , Aptidão Física , Maleabilidade
20.
Artigo em Português | LILACS-Express | ID: lil-580891

RESUMO

As escalas de percepção de esforço de Borg e OMNI são amplamente validadas para identificação da intensidade do exercício. O estudo teve como objetivo testar a correspondência entre as categorias das Escalas de Borg (6-20) e OMNI-Ciclismo na prescrição de exercícios em cicloergômetro e propor uma nova tabela de conversão entre as escalas.Vinte seis homens (17-41 anos de idade), praticantes de Ciclismo Indoor, pedalaram por 3 minutos, em 6 cargas auto selecionadas correspondentes às categorias de percepção de esforço 9, 11, 13, 15, 17, 19 para Borg, em uma sessão e 2, 4, 5, 7, 8 e 10 para OMNI, emoutra sessão. Ao final de cada estágio, a frequência cardíaca (FC) e a potência (W) foramregistradas. Calculou-se a correlação de Pearson entre as escalas. A correspondência entreas categorias das escalas foi testada pela ANOVA para medidas repetidas, seguida do testede Tuckey (p < 0,05). Foi encontrada alta correlação entre as duas escalas (r = 0,87; P < 0,05)e diferença significativa na FC para as três primeiras categorias. Quanto a W, encontrou-sediferença significativa apenas nas duas primeiras categorias. A conversão testada mostroucorrelação significante. Entretanto, há diferenças significantes na FC para as três primeirascategorias e na W para as duas primeiras. A seguinte correspondência foi proposta: Borg11, 13, 15, 17 e 19; para OMNI 2, 4, 7, 8 e 10.


The Borg and OMNI scales of perceived exertion have been widely validated for the identification of exercise intensity. The objective of this study was to test the agreement between the categories of the Borg (6-20) and OMNI-Cycle scales for the prescription of cycle ergometerexercise and to propose a new conversion table. Twenty-six male indoor cyclists (17-41 years) pedalled for 3 min at six self-selected increasing loads. These loads corresponded to categories 9, 11, 13, 15, 17, and 19 of the Borg scale in one session, and to categories 2, 4, 5, 7, 8, and 10of the OMNI scale in the other session. At the end of each stage, heart rate (HR) and power (W) were recorded. Pearson?s correlation coefficient between scales was calculated. Agreement between the categories of the scales was tested by ANOVA for repeated measures, followed bythe Tukey test (p < 0.05). The correlation between the two scales was high (r = 0.87, p < 0.05). Significant difference between the two scales was observed for HR in the first three categories. W differed significantly only in the first two categories. The conversion tested showed a significant correlation. However, there were significant differences in HR in the first three categories and in W in the first two. The following agreement is proposed: Borg 11, 13, 15, 17, and 19 correspondingto OMNI 2, 4, 7, 8, and 10.

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