26 research outputs found
The snake community of Serra do Mendanha, in Rio de Janeiro State, southeastern Brazil: composition, abundance, richness and diversity in areas with different conservation degrees
Full text linkEffect of enteral diet enriched with eicosapentaenoic acid, gamma-linolenic acid, and antioxidants in patients with sepsis-induced acute respiratory distress syndrome
Get PDFThe role of passion in exercise addiction, exercise volume, and exercise intensity in long-term exercisers
Get PDFRecent studies have shown a relationship between the risk for exercise addiction (REA) and passion. This research examined whether levels of REA, volume of exercise (in weekly hours), and self-reported exercise intensities yield differences in obsessive passion and harmonious passion among individuals with long history of exercise. Respondents (n = 360) completed the Exercise Addiction Inventory, Passion Scale, and Borg Scale (assessing their usual exercise intensity), and reported their volume of exercise (hours per week). Regression analysis demonstrated that exercise intensity, obsessive passion, and harmonious passion were significant predictors (r2 = .381, p < .001) of the REA scores with obsessive passion being the strongest predictor (r2 = .318). Exercisers classified as at REA reported higher obsessive passion, harmonious passion, and exercise intensity (p ≤ .001) than those classified as symptomatic, who in turn scored higher on these measures (p ≤ .006) than asymptomatic exercisers. Participants reporting greater volumes of exercise also scored higher on obsessive passion, harmonious passion (p < .001), exercise intensity (p = .032), and REA scores (p = .042) than individuals who exercised less. Finally, women exercising between low and high intensities exhibited greater obsessive passion, as well as harmonious passion (p ≤ .005) than men reporting similar exercise intensities. These findings support the recently reported relationship between passion and REA. They also expand the current knowledge by demonstrating that obsessive passion and harmonious passion are greater in the individuals who exercise at higher volumes and with higher intensities
Hypotensive response after water-walking and land-walking exercise sessions in healthy trained and untrained women
No full textDaniel Rodriguez1, Valter Silva2, Jonato Prestes3, Roberta Luksevicius Rica4, Andrey Jorge Serra5, Danilo Sales Bocalini6, Francisco Luciano Pontes Junior71S&atilde;o Judas Tadeu University, S&atilde;o Paulo, SP, Brazil; 2College of Physical Education of Sorocaba, Sorocaba, SP, Brazil; 3Graduation Program in Physical Education, Catholic University of Brasilia, Brasilia-DF, Brazil; 4Department of Physical Education, Arbos College, S&atilde;o Bernardo do Campo, SP, Brazil; 5Department of Physical Education and Laboratory of Rehabilitation Science, Nove de Julho University, S&atilde;o Paulo, SP, Brazil; 6Department of Medicine, Federal University of S&atilde;o Paulo &ndash; Escola Paulista de Medicina, S&atilde;o Paulo, SP, Brazil; 7School of Arts, Sciences and Humanities, University of S&atilde;o Paulo, S&atilde;o Paulo, SP, BrazilBackground: The aim of this study was to compare post-exercise hypotension after acute sessions of water-walking and land-walking in healthy trained and untrained women.Methods: Twenty-three untrained (n = 12) and trained (n = 11) normotensive women performed two walking sessions in water and on land at 40% of peak VO2 for 45 minutes. Systolic and diastolic blood pressure and mean arterial pressure were measured 15, 30, 45, and 60 minutes after the exercise sessions.Results: No differences were found between the groups for age and anthropometric parameters, but peak VO2 for the trained women (45 &plusmn; 8 mL/kg/minute) was higher than for the untrained women (31 &plusmn; 3 mL/kg/minute). No differences were found between the groups with regard to systolic and diastolic blood pressure and mean arterial pressure after water immersion. The heart rate in the trained group (62 &plusmn; 3 beats per minute [bpm]) was significantly lower (P &lt; 0.05) than in the untrained group&nbsp;(72 &plusmn; 4 bpm) on land, and after water immersion, this difference disappeared (58 &plusmn; 5 bpm in the trained women and 66 &plusmn; 5 bpm in the untrained women). Sixty minutes after water-walking, systolic blood pressure (108 &plusmn; 8 mmHg vs 97 &plusmn; 3 mmHg), diastolic blood pressure (69 &plusmn; 5 mmHg vs 62 &plusmn; 5 mmHg), and mean arterial pressure (82 &plusmn; 6 mmHg vs 74 &plusmn; 4 mmHg) decreased significantly with rest in the untrained group, and no differences were found after land-walking. In the trained group, significant (P &lt; 0.05) differences were found only for systolic blood pressure (110 &plusmn; 9 mmHg vs 100 &plusmn; 9 mmHg) after 60 minutes of water-walking; decreases in systolic blood pressure were found after 45 minutes (99 &plusmn; 7 mmHg) and 60 minutes (99 &plusmn; 6 mmHg) compared with rest (107 &plusmn; 5 mmHg) after land-walking.Conclusion: Single water-walking and land-walking sessions induced important hypotension following exercise. Additionally, walking performed in chest-deep water has a better effect on exercise-induced hypotension in untrained healthy women than walking at a similar intensity on land.Keywords: water-based exercise, post-exercise hypotension, blood pressure, cardiovascular response, normotensive wome
Effects of exercise intensity on postexercise hypotension after resistance training session in overweight hypertensive patients
No full textPaula Andréa M Cavalcante,1,2 Roberta L Rica,1,2 Alexandre L Evangelista,1,3 Andrey J Serra,3,4 Aylton Figueira Jr,1,2 Francisco Luciano Pontes Jr,5 Lon Kilgore,6 Julien S Baker,6 Danilo S Bocalini1,2 1Translational Physiology Laboratory, 2Postgraduate Program in Physical Education and Aging Science, São Judas Tadeu University (USJT), 3Department of Physical Education, 4Postgraduate Program in Biophotonics Applied to Health Sciences, Nove de Julho University (UNINOVE), 5Department of Gerontology of Arts, Science and Humanities School, São Paulo University, São Paulo, Brazil; 6Institute of Clinical Exercise and Health Science, University of the West of Scotland, Hamilton, Lanarkshire, Scotland Abstract: Among all nonpharmacological treatments, aerobic or resistance training (RT) has been indicated as a significantly important strategy to control hypertension. However, postexercise hypotension responses after intensity alterations in RT are not yet fully understood. The purpose of this study was to compare the outcomes of differing intensities of RT on hypertensive older women. Twenty hypertensive older women participated voluntarily in this study. After a maximum voluntary contraction test (one repetition maximum) and determination of 40% and 80% experimental loads, the protocol (3 sets/90" interset rest) was performed in a single session with the following exercises: leg press, leg extension, leg curl, chest press, elbow flexion, elbow extension, upper back row, and abdominal flexion. Systolic and diastolic blood pressures were evaluated at rest, during exercise peak, and after 5, 10, 15, 30, 45, and 60 minutes of exercise and compared to the control. Both experimental loads were effective (P<0.01) in promoting postexercise systolic hypotension (mmHg) compared to controls, after 30, 45, and 60 minutes, respectively, at 40% (113±2, 112±4, and 110±3 mmHg) and 80% (111±3, 111±4, and 110±4 mmHg). Both procedures promoted hypotension with similar systolic blood pressures (40%: -11%±1.0% and 80%: -13%±0.5%), mean arterial blood pressures (40%: -12%±5.5% and 80%: -12%±3.4%), and rate-pressure products (40%: -15%±2.1% and 80%: -17%±2.4%) compared to control measures (systolic blood pressure: 1%±1%, mean arterial blood pressure: 0.6%±1.5%, rate-pressure product: 0.33%±1.1%). No differences were found in diastolic blood pressure and heart rate measures. In conclusion, hypertensive older women exhibit postexercise hypotension independently of exercise intensity without expressed cardiovascular overload during the session. Keywords: resistive training, postexercise hypotension, aging, hypertensio
Effects of circuit-based exercise programs on the body composition of elderly obese women
No full textDanilo Sales Bocalini,1 Lucas S Lima,3 Socrates de Andrade,4 Angelo Madureira,4 Roberta L Rica,4,5 Rodrigo Nolasco dos Santos,4 Andrey Jorge Serra,1,2 Jose Antonio Silva Jr,2 Daniel Rodriguez,6 Aylton Figueira Jr,6 Francisco Luciano Pontes Jr31Departamenteo de Educação Física e, 2Ciências da Reabilitação da Universidade Nove de Julho (UNINOVE), São Paulo, SP, Brazil; 3Curso de Gerontologia, Escola de Artes, Ciências e Humanidades da Universidade de São Paulo (EACH), São Paulo, SP, Brazil; 4Universidade Gama Filho (UGF), Rio de Janeiro, RJ, Brazil; 5Departamento de Educação Física, Colegio Arbos, São Bernardo do Campo, SP, Brazil; 6Departamento de Educação Física. Universidade São Judas Tadeu (USJT), São Paulo, SP, BrazilAim: The aim of this study was to investigate the impact of circuit-based exercise on the body composition in obese older women by focusing on physical exercise and body weight (BW) gain control in older people.Methods: Seventy older women (>60 years old) voluntarily took part in the study. Participants were randomized into six different groups according to body mass index (BMI): appropriate weight (AW) control (AWC) and trained (AWT) groups, overweight (OW) control (OWC) and trained (OWT) groups, and obesity (O) control (OC) and trained (OT) groups. The exercise program consisted of 50 minutes of exercise three times per week for 12 weeks. The exercises were alternated between upper and lower body using rest between sets for 40 seconds with intensity controlled by heart rate (70% of work). The contraction time established was 5 seconds to eccentric and concentric muscular action phase. The following anthropometric parameters were evaluated: height (m), body weight (BW, kg), body fat (BF, %), fat mass (FM, kg), lean mass (LM, kg), and BMI (kg/m2).Results: The values (mean ± standard deviation [SD]) of relative changes to BW (−8.0% ± 0.8%), BF (−21.4% ± 2.1%), LM (3.0% ± 0.3%), and FM (−31.2% ± 3.0%) to the OT group were higher (P < 0.05) than in the AWT (BW: −2.0% ± 1.1%; BF: −4.6% ± 1.8%; FM: −7.0% ± 2.8%; LM: 0.2% ± 1.1%) and OWT (BW: −4.5% ± 1.0%; BF: −11.0% ± 2.2%; FM: −16.1% ± 3.2%; LM: −0.2% ± 1.0%) groups; additionally, no differences were found for C groups. While reduction (P < 0.03) in BMI according to absolute values was observed for all trained groups (AWT: 22 ± 1 versus 21 ± 1; OWT: 27 ± 1 versus 25 ± 1, OT: 34 ± 1 versus 30 ± 1) after training, no differences were found for C groups.Conclusion: In summary, circuit-based exercise is an effective method for promoting reduction in anthropometrics parameters in obese older women.Keywords: anthropometric parameters, body fat, obesity, older women, physical exercis
Isometric handgrip does not elicit cardiovascular overload or post-exercise hypotension in hypertensive older women
No full textRafael dos Reis Vieira Olher,1,2,* Danilo Sales Bocalini,3,* Reury Frank Bacurau,4 Daniel Rodriguez,5 Aylton Figueira Jr,5 Francisco Luciano Pontes Jr,4 Francisco Navarro,6 Herbert Gustavo Simões,1 Ronaldo Carvalho Araujo,7 Milton Rocha Moraes8 1Universidade Católica de Brasília, Distrito Federal, 2Universidade Gama Filho, Rio de Janeiro, 3Universidade Nove de Julho (UNINOVE), São Paulo, 4Universidade de São Paulo – Escola de Artes, Ciências e Humanidades, São Paulo, 5Universidade São Judas Tadeu (USJT), São Paulo, Brazil, 6Universidade Federal do Maranhão, Maranhão, 7Universidade de São Paulo, Instituto de Ciências Biomédicas, São Paulo, 8Universidade Federal de São Paulo – Escola Paulista de Medicina, São Paulo, Brazil *These authors contributed equally to this work Background: Arterial hypertension is a serious health problem affecting mainly the elderly population. Recent studies have considered both aerobic and resistance exercises as a non-pharmacological aid for arterial hypertension treatment. However, the cardiovascular responses of the elderly to isometric resistance exercise (eg, isometric handgrip [IHG]) have not yet been documented. Objective: The purpose of this study was to investigate cardiovascular responses to different intensities of isometric exercise, as well as the occurrence of post-isometric exercise hypotension in hypertensive elderly people under antihypertensive medication treatment. Patients and methods: Twelve women volunteered to participate in the study after a maximal voluntary contraction test (MVC) and standardization of the intervention workload consisting of two sessions of IHG exercise performed in four sets of five contractions of a 10-second duration. Sessions were performed both at 30% of the MVC and 50% of the MVC, using a unilateral IHG protocol. Both intensities were compared with a control session without exercise. Systolic blood pressure (SBP) and diastolic blood pressure (DBP) at rest (R), during peak exercise (PE), and after 5, 10, 15, 30, 45, and 60 minutes of post-exercise recovery were evaluated. Results: No significant changes were observed after isometric exercise corresponding to 30% MVC for either SBP (R: 121 ± 10; PE: 127 ± 14; 5 min: 125 ± 13; 10 min: 123 ± 12; 15 min: 122 ± 11; 30 min: 124 ± 11; 45 min: 124 ± 10; 60 min: 121 ± 10 mmHg) or DBP (R: 74 ± 9; PE: 76 ± 6; 5 min: 74 ± 5; 10 min: 72 ± 8; 15 min: 72 ± 5; 30 min: 72 ± 8; 45 min: 73 ± 6; 60 min: 75 ± 7 mmHg). Similarly, the 50% MVC did not promote post-isometric exercise hypotension for either SBP (R: 120 ± 7; PE: 125 ± 11; 5 min: 120 ± 9; 10 min: 122 ± 9; 15 min: 121 ± 11; 30 min: 121 ± 9; 45 min: 121 ± 9; 60 min: 120 ± 7 mmHg) or DBP (R: 72 ± 8; PE: 78 ± 7; 5 min: 72 ± 7; 10 min: 72 ± 8; 15 min: 71 ± 7; 30 min: 72 ± 8; 45 min: 75 ± 10; 60 min: 75 ± 7 mmHg). Conclusion: Our data reveal that cardiovascular overload or post-exercise hypotension did not occur in elderly women with controlled hypertension when they undertook an IHG session. Thus this type of resistance exercise, with mild to moderate intensity, with short time of contraction appears to be safe for this population. Keywords: hypertension, resistance exercise, elderly, cardiovascular response, antihypertensive medication, isometric exercis
Efeitos do repouso e do exercĂcio no solo e na água em hipertensos e normotensos Effects of rest and exercise on ground and in water in hypertensive and normotensive patients
Get PDFEste estudo visou avaliar o efeito do repouso e do exercĂcio, realizados no solo e na água, sobre a frequĂŞncia cardĂaca (FC), pressĂŁo arterial sistĂłlica (PAS) e diastĂłlica (PAD) e o volume de diurese em indivĂduos hipertensos e normotensos. Foram analisados 20 indivĂduos divididos em dois grupos, normotensos (GN, n=8) e hipertensos (GH, n=12). Em ambos foram realizados quatro protocolos distintos, dois de exercĂcios e dois de repouso, no solo e na água. A PAS, PAD e FC foram mensuradas durante repouso e aos 30, 60 e 90 minutos apĂłs cada protocolo. O volume de diurese foi corrigido pelo peso corporal e coletado 30 minutos apĂłs cada protocolo. No GH, o protocolo de exercĂcio no solo promoveu redução mĂ©dia de 16,5±3,7 mmHg (p=0,01) da PAS aos 90 minutos pĂłs-exercĂcio. No GN, o protocolo de repouso na água promoveu redução mĂ©dia de 14 bpm (p<0,01) da FC e o volume de diurese foi maior quando comparado aos protocolos realizados no solo (p<0,01). Portanto, a imersĂŁo desencadeou bradicardia e aumento do volume de diurese no GN. NĂŁo houve efeito hipotensor significativo nos protocolos realizados na água em ambos os grupos. Os resultados sugerem que uma sessĂŁo de exercĂcio fĂsico no solo com duração de 45 minutos, em intensidade submáxima, provoca redução da PAS em indivĂduos hipertensos.<br>The aim of this study was to assess the effect of rest and exercise, accomplished on the ground or in water on the heart rate (HR), systolic blood pressure (SBP) and diastolic blood pressure (DBP) and the volume of diuresis in hypertensive and normotensive individuals. Twenty individuals were analyzed and divided into two groups, normotensive (GN, n=8) and hypertensive (GH, n=12). Both groups accomplished four distinct protocols, two protocols of exercise and two protocols of rest on the ground and in the water. The SBP, DBP and HR were measured at rest and at 30, 60 and 90 minutes after each protocol. The volume of diuresis was corrected for the body weight and collected 30 minutes after each protocol. In the GH, the exercise protocol on the ground caused an average reduction of 16.5±3.7 mmHg (p=0.01) in SBP at 90 minutes post-exercise. In the GN, the protocol of rest in the water caused an average reduction of 14 bpm (p<0.01) in HR and the volume of diuresis was increased when compared with the protocols accomplished on the ground (p<0.01). Therefore, the immersion triggered bradycardia and increase in volume of diuresis in the normotensive group. There was no significant hypotensive effect in the protocols performed in water in both groups. The results suggest that an exercise session on the ground during 45 minutes in submaximal intensity causes a reduction in SBP in hypertensive subjects
Polymerase chain reaction for the evaluation of Schistosoma mansoni infection in two low endemicity areas of Minas Gerais, Brazil
No full textThis study aimed to evaluate the occurrence of schistosomiasis in areas with low endemicity using polymerase chain reaction (PCR) as a diagnostic method. We analysed faecal samples from 219 individuals residing in Piau and Coronel Pacheco, state of Minas Gerais, Brazil, using a single faecal sample from each individual and two slides of the Kato-Katz technique as a gold standard. Fifteen out of the 219 samples were positive with both methods of diagnosis. One sample was diagnosed as positive by the Kato-Katz technique only and 61 were diagnosed only by PCR. The positivity rates were 7.3% with the Kato-Katz method and 34.7% with PCR. When both techniques were assumed to have 100% specificity and positive individuals were identified by both methods, the sensitivity of the Kato-Katz method was 20.8% and the PCR sensitivity was 98.7%. The Kappa index between the two techniques was 0.234, suggesting weak agreement. The assessment of a single faecal sample by PCR detected more cases of infection than the analysis of one sample with two slides using the Kato-Katz technique, suggesting that PCR can be a useful diagnostic tool, particularly in areas with low endemicity
