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- ItemAcesso aberto (Open Access)Avaliação da capacidade de exercício em portadores de doença pulmonar obstrutiva crônica: comparação do teste de caminhada com carga progressiva com o teste de caminhada com acompanhamento(Sociedade Brasileira de Pneumologia e Tisiologia, 2006-04-01) Rosa, Fernanda Warken [UNIFESP]; Camelier, Aquiles Assunção [UNIFESP]; Mayer, Anamaria [UNIFESP]; Jardim, José Roberto [UNIFESP]; Universidade Federal de São Paulo (UNIFESP)OBJECTIVE: To evaluate the applicability of the incremental (shuttle) walk test in patients with chronic obstructive pulmonary disease and compare the performance of those patients on the shuttle walk test to that of the same patients on the encouraged 6-minute walk test. METHODS: A cross-sectional study was conducted, in which 24 patients with chronic obstructive pulmonary disease were selected. In random order, patients were, after an initial practice period, submitted to a shuttle walk test and an encouraged 6-minute walk test. RESULTS: The patients obtained a higher heart rate (expressed as a percentage of that predicted based on gender and age) on the encouraged 6-minute walk test (84.1 ± 11.4%) than on the shuttle walk test (76.4 ± 9.7%) (p = 0.003). The post-test sensation of dyspnea (Borg scale) was also higher on the encouraged 6-minute walk test. On average, the patients walked 307.0 ± 89.3 meters on the shuttle walk test and 515.5 ± 102.3 meters on the encouraged 6-minute walk test (p < 0.001). There was a good correlation between the two tests in terms of the distance walked (r = 0.80, p < 0.001). CONCLUSION: The shuttle walk test is simple and easy to implement in patients with chronic obstructive pulmonary disease. The encouraged 6-minute walk test produced higher post-test heart rate and greater post-test sensation of dyspnea than did the shuttle walk test.
- ItemAcesso aberto (Open Access)Avaliação da segurança do teste de caminhada dos 6 minutos em pacientes no pré-transplante cardíaco(Sociedade Brasileira de Cardiologia - SBC, 2009-04-01) Cipriano Junior, Gerson [UNIFESP]; Yoshimori, Darlene Yuri [UNIFESP]; Bernardelli, Graziella França [UNIFESP]; Mair, Vanessa [UNIFESP]; Buffolo, Enio [UNIFESP]; Branco, João Nelson Rodrigues [UNIFESP]; Universidade Federal de São Paulo (UNIFESP)BACKGROUND: The 6-minute walk test (6WT) has been used as a means of assessment of the functional capacity, clinical staging and cardiovascular prognosis. Its safety and metabolic impact have not been frequently described in the literature, especially in patients with severe heart failure with clinical indication for cardiovascular transplantation. OBJECTIVE: To evaluate the occurrence of arrhythmias and cardiovascular changes during 6WT. To correlate 6WT performance with clinical staging and cardiovascular prognosis. METHODS: Twelve patients, 10 of whom males, aged 52 ± 8 years were evaluated at baseline. 6WT was performed with telemetry electrocardiography, vital signs and lactate monitoring. The patients were followed-up for 12 months. RESULTS: The patients walked 399.4±122.5 (D, m), reaching a perceived exertion (PE) of 14.3±1.5 and a 34% baseline heart rate variation. Two patients presented more severe pre-6WT arrhythmia which did not worsen with the exercice, four patients presented a significant increase of blood lactate levels (>5 mmol/dl), and three interrupted the test. The distance walked correlated with the ejection fraction (%) and functional class (NYHA). After 12-month follow-up, three patients died and seven were rehospitalized for cardiac decompensation. The D/PE ratio and 2-minute heart rate recovery (HRR2, bpm) were lower in the death group. CONCLUSION: The clinical and electrocardiographic behaviors suggest that the method is safe, but it may be considered too strenuous for some patients with severe heart failure. Variables related to 6WT performance may be associated with the one-year follow-up mortality.
- ItemSomente MetadadadosAvaliação do teste da caminhada de seis minutos com acompanhamento em pacientes com insuficiência cardíaca(Universidade Federal de São Paulo (UNIFESP), 2000) Peres, Paulo Alberto Tayar [UNIFESP]; Jardim, José Roberto de Brito [UNIFESP]Introdução: O teste da caminhada de seis minutos vem sendo empregado na avaliação e acompanhamento de pacientes com insuficiência cardíaca, e tem demostrado ser eficaz não só como exame complementar na análise da capacidade ao exercício como também na correlação com prognóstico e mortalidade. Objetivos: Primeiro, analisar se o teste da caminhada de seis minutos, quando aplicado com acompanhamento (examinador andando junto ao paciente e incentivando-o verbalmente), estima o desenvolvimento de um esforço má3dmo nos pacientes com insuficiência cardíaca; segundo, comparar o consumo de oxigênio pico obtido pelo teste ergoespirométrico com o estimado pelas três equações de Cahalin et al.(1996) propostas para o teste da caminhada sem acompanhamento. Casuística e Métodos: Foram estudados 16 pacientes com insuficiência cardíaca, os quais realizaram um teste ergoespirométrico e dois testes da caminhada com acompanhamento. Resultados: Houve correlação significante entre a distancia percorrida no segundo teste da caminhada (mediana=536,5 m) com a distancia percorrida no teste ergoespirométrico (mediana=540,5 m) (p O,0001; rho = O,84) e o consumo de oxigênio pico (VO2 PICO) (p O,001; rho = O,76). Houve, também semelhança (p=O,50) e correlação entre as freqüências cardíacas máximas do teste ergoespirométrico e do teste da caminhada (p=O,0001; rho = O,83); não houve diferença na percepção ao esforço (Escala de Borg) no final dos dois testes (p=O,79). A comparação entre VO2 pico obtido no teste ergoespirométrico e o previsto pela equação de Cahalin et al. (l996), que inclui apenas a distancia percorrida no teste da caminhada de seis minutos, e ainda com a que inclui variáveis antropométricas e o duplo produto, não apresentaram diferenças significante (p=O,44; p=1,77). Entretanto, houve diferença significante (p=O,0014) entre OS VO2 pico do teste e o estimado pela equação que inclui as variáveis acima mais a capacidade vital e o volume expiratório forçado no primeiro segundo. Fixando-se um valor de 10 por cento de diferença entre OS VO2 pico obtidos e estimados como sendo aceitáveis, observou-se que a maioria dos valores previstos pelas três equações estavam acima ou abaixo deste limite. Conclusões: Nossos resultados sugerem que a técnica de acompanhamento de um examinador junto ao paciente com insuficiência cardíaca no teste da caminhada, faz com que ele , ao final do teste, atinja níveis cronotrôpicos iguais aos atingidos no teste ergoespirométrico...(au).
- ItemAcesso aberto (Open Access)Capacidade inspiratória, limitação ao exercício, e preditores de gravidade e prognóstico, em doença pulmonar obstrutiva crônica(Sociedade Brasileira de Pneumologia e Tisiologia, 2007-08-01) Freitas, Clarice Guimarães de; Pereira, Carlos Alberto de Castro [UNIFESP]; Viegas, Carlos Alberto de Assis; Universidade de Brasília; Universidade Federal de São Paulo (UNIFESP); Universidade de Brasília Faculdade de MedicinaOBJECTIVE: To correlate the postbronchodilator (post-BD) inspiratory capacity (IC), % of predicted, with other markers of severity and prognostic factors in chronic obstructive pulmonary disease (COPD). METHODS: Eighty stable patients with COPD performed forced vital capacity and slow vital capacity maneuvers, as well as the 6-min walk test, prior to and after receiving albuterol spray (400 µg). Patients were divided into four groups, based on post-BD forced expiratory volume in one second. Several variables were tested to establish correlations with the post-BD distance walked, using univariate and multivariate analysis. Post-BD IC was found to correlated with Global Initiative for Chronic Obstructive Lung Disease (GOLD) staging and with the Body mass index, airway Obstruction, Dyspnea, and Exercise capacity (BODE) index. RESULTS: Multivariate regression analysis revealed that the distance walked, % predicted, correlated significantly with the IC post-BD, % predicted (p = 0.001), long-term oxygen use (p = 0.014), and number of medications used in the treatment (p = 0.044). IC < 70% was observed in 56% patients in GOLD stages 3 or 4 vs. 20% in GOLD 1 or 2 (p < 0.001). IC < 70% was observed in (60%) patients with BODE score 3 or 4 vs. (33%) BODE score 1 or 2 (p = 0.02). CONCLUSION: Post-BD IC% predicted is the best functional predictor of distance walked and is significantly associated with GOLD staging and BODE index. Therefore, We propose that the inspiratory capacity should be added to the routine evaluation of the COPD patients.
- ItemAcesso aberto (Open Access)Equações de referência para os testes de caminhada de campo em adultos saudáveis(Sociedade Brasileira de Pneumologia e Tisiologia, 2011-10-01) Dourado, Victor Zuniga [UNIFESP]; Vidotto, Milena Carlos [UNIFESP]; Guerra, Ricardo Luís Fernandes [UNIFESP]; Universidade Federal de São Paulo (UNIFESP)OBJECTIVE: To develop regression equations for predicting six-minute and incremental shuttle walk distances (6MWD and ISWD, respectively), based on demographic characteristics, anthropometric variables, and grip strength. METHODS: We evaluated 6MWD and ISWD in 98 healthy adults. Height, weight, and grip strength were also assessed. Using data from 90 of the participants (40 males; 60 ± 9 years of age), we devised linear equations adjusted for age, gender, height, and weight, and we developed alternate models that included grip strength. We prospectively applied the equations in the 8 remaining participants (4 males; 59 ± 10 years), who had been randomly separated from the initial sample. RESULTS: Age, gender, height, and weight collectively explained 54.5% and 64.9% of the variance in 6MWD and ISWD, respectively, whereas age, height, weight, and grip strength collectively explained 54.4% and 69.0% of the respective variances. There was no significant difference between the measured and predicted 6MWD using equations with and without grip strength (14 ± 57 vs. 13 ± 67 m). Similar results were observed for ISWD (25 ± 104 vs. 25 ± 93 m). CONCLUSIONS: Grip strength is a determinant of ISWD and 6MWD; however, it could not improve the power of equations adjusted by demographic and anthropometric variables. The validity of our models including grip strength should be further evaluated in patients with skeletal muscle dysfunction.
- ItemSomente MetadadadosHeart Rate Variability during 6-Min Walk Test in Adults Aged 40 Years and Older(Georg Thieme Verlag Kg, 2013-02-01) Correa, Fernanda Rocha [UNIFESP]; Alves, Mariana Agnes da Silva [UNIFESP]; Bianchim, Mayara Silveira [UNIFESP]; Aquino, Aline Crispim de [UNIFESP]; Guerra, Ricardo Luís Fernandes [UNIFESP]; Dourado, Victor Zuniga [UNIFESP]; Universidade Federal de São Paulo (UNIFESP)We evaluated age-and sex-dependent differences in heart rate variability (HRV) during the 6-min walk test (6MWT) in healthy adults. We also evaluated the intensity of the 6MWT based on HRV. 78 participants aged 40-49, 50-59, 60-69, and >= 70 years (42 females; 36 men) performed the 6MWT. Heart rate and HRV were monitored 1 min at rest and during the last 2-min of the test. the root mean square (RMSSD), instantaneous beat-to-beat variability (SD1), and long-term standard deviation (SD2) of RR intervals were calculated. the SD1 < 3 ms at the end of the 6MWT was defined as high-intensity exercise. Despite the significantly higher peak values of heart rate observed for women, we did not find sex-and age-related differences in HRV during the 6MWT. the ROC curve identified percentage of maximum heart rate > 67 % as the best cut-point for prediction of high-intensity exercise with 94 % of sensitivity and 65 % of specificity (area under the curve = 0.804). We may conclude that autonomic modulation of heart rate during exercise was not dependent of age and sex. the HRV assessment during walking enables a valid estimation of exercise intensity in adults. We may therefore suggest the use of 6MWT for assessing exercise capacity and for prescribing exercises in adults aged 40 yrs and older.
- ItemSomente MetadadadosIncremental shuttle and six-minute walking tests in the assessment of functional capacity in chronic heart failure(Elsevier B.V., 2008-02-01) Pulz, Cristiane [UNIFESP]; Diniz, Rosiane Viana Zuza [UNIFESP]; Alves, Alexandre N. Ferreira [UNIFESP]; Tebexreni, Antonio Sergio [UNIFESP]; Carvalho, Antonio Carlos [UNIFESP]; De Paola, Angelo Amato Vincenzo [UNIFESP]; Almeida, Dirceu Rodrigues de [UNIFESP]; Universidade Federal de São Paulo (UNIFESP)BACKGROUND: The incremental shuttle test presents some theoretical advantages over the six-minute walk test in chronic heart failure (CHF), including better standardization and less dependency on collaboration.OBJECTIVES: The present study evaluated test-retest repeatability, test accuracy in predicting a peak oxygen consumption (VO(2)) of 14 mL/kg/min or less, as well as the prognostic value of both walking tests in stable CHF patients.METHODS: Sixty-three patients (44 men; New York Heart Association functional class II to IV) underwent an incremental treadmill exercise test and, on another day, the walk test in duplicate.RESULTS: Patients showed well-preserved functional capacity according to the distance walked in both tests (six-minute walk test 491 +/- 94 in versus incremental shuttle walk test 422 +/- 119 in; P < 0.001). Interestingly, the six-minute and incremental shuttle walk test differences in distance walked were higher in more disabled patients. The mean bias 95% CI of the within,test differences were similar (7 +/- 40 m and 8 +/- 45 in, respectively). Peak VO(2), but not distance walked in either test, was associated with survival (P < 0.05).CONCLUSIONS: The incremental shuttle walk test showed similar repeatability and accuracy in estimating peak VO(2) compared with the six-minute walk test in CHF patients. Direct measurement of peak VO(2), however, remains superior to either walking test in predicting survival - at least in patients with well-preserved functional capacity.
- ItemAcesso aberto (Open Access)Intensity and physiological responses to the 6-minute walk test in middle-aged and older adults: a comparison with cardiopulmonary exercise testing(Assoc Bras Divulg Cientifica, 2015-04-01) Sperandio, Evandro Fornias [UNIFESP]; Arantes, Rodolfo Leite; Matheus, Agatha Caveda [UNIFESP]; Silva, Rodrigo Pereira da [UNIFESP]; Lauria, Vinicius Tonon [UNIFESP]; Romiti, Marcello; Gagliardi, Antonio Ricardo de Toledo; Dourado, Victor Zuniga [UNIFESP]; Universidade Federal de São Paulo (UNIFESP); Inst Med Cardiovasc AngiocorporeThe 6-minute walk test (6MWT) is a simple field test that is widely used in clinical settings to assess functional exercise capacity. However, studies with healthy subjects are scarce. We hypothesized that the 6MWT might be useful to assess exercise capacity in healthy subjects. the purpose of this study was to evaluate 6MWT intensity in middle-aged and older adults, as well as to develop a simple equation to predict oxygen uptake (V) over dotO(2)) from the 6-min walk distance (6MWD). Eighty-six participants, 40 men and 46 women, 40-74 years of age and with a mean body mass index of 28 +/- 6 kg/m(2), performed the 6MWT according to American Thoracic Society guidelines. Physiological responses were evaluated during the 6MWT using a K4b2 Cosmed telemetry gas analyzer. On a different occasion, the subjects performed ramp protocol cardiopulmonary exercise testing (CPET) on a treadmill. Peak (V) over dotO(2) in the 6MWT corresponded to 78 +/- 13% of the peak (V) over dotO(2) during CPET, and the maximum heart rate corresponded to 80 +/- 23% of that obtained in CPET. Peak (V) over dotO(2) in CPET was adequately predicted by the 6MWD by a linear regression equation: (V) over dotO(2) mL.min(-1).kg(-1) = -2.863 + (0.0563 x 6MWD(m)) (R-2 = 0.76). the 6MWT represents a moderate-to-high intensity activity in middle-aged and older adults and proved to be useful for predicting cardiorespiratory fitness in the present study. Our results suggest that the 6MWT may also be useful in asymptomatic individuals, and its use in walk-based conditioning programs should be encouraged.
- ItemAcesso aberto (Open Access)Reliability and validity of heart rate variability threshold assessment during an incremental shuttle-walk test in middle-aged and older adults(Assoc Bras Divulg Cientifica, 2013-02-01) Dourado, Victor Zuniga [UNIFESP]; Guerra, Ricardo Luís Fernandes [UNIFESP]; Universidade Federal de São Paulo (UNIFESP)Studies on the assessment of heart rate variability threshold (HRVT) during walking are scarce. We determined the reliability and validity of HRVT assessment during the incremental shuttle walk test (ISWT) in healthy subjects. Thirty-one participants aged 57 +/- 9 years (17 females) performed 3 ISWTs. During the 1st and 2nd ISWTs, instantaneous heart rate variability was calculated every 30 s and HRVT was measured. Walking velocity at HRVT in these tests (WV-HRVT1 and WV-HRVT2) was registered. During the 3rd ISWT, physiological responses were assessed. the ventilatory equivalents were used to determine ventilatory threshold (VT) and the WV at VT (WV-VT) was recorded. the difference between WV-HRVT1 and WV-HRVT2 was not statistically significant (median and interquartile range = 4.8; 4.8 to 5.4 vs 4.8; 4.2 to 5.4 km/h); the correlation between WV-HRVT1 and WV-HRVT2 was significant (r = 0.84); the intraclass correlation coefficient was high (0.92; 0.82 to 0.96), and the agreement was acceptable (-0.08 km/h; -0.92 to 0.87). the difference between WV-VT and WV-HRVT2 was not statistically significant (4.8; 4.8 to 5.4 vs 4.8; 4.2 to 5.4 km/h) and the agreement was acceptable (0.04 km/h; -1.28 to 1.36). HRVT assessment during walking is a reliable measure and permits the estimation of VT in adults. We suggest the use of the ISWT for the assessment of exercise capacity in middle-aged and older adults.
- ItemRestritoThe six-minute walk test and body weight-walk distance product in healthy Brazilian subjects(Assoc Bras Divulg Cientifica, 2009-11-01) Iwama, Angela May [UNIFESP]; Andrade, Geisa Nascimento de [UNIFESP]; Shima, Patricia [UNIFESP]; Tanni, Suzana Erico; Godoy, Irma de; Dourado, Victor Zuniga [UNIFESP]; Universidade Federal de São Paulo (UNIFESP); Universidade de São Paulo (USP)We assessed the 6min walk distance (6MWD) and body weight x distance product (6MWw) in healthy Brazilian subjects and compared measured 6MWD with values predicted in five reference equations developed for other populations. Anthropometry, spirometry, reported physical activity, and two walk tests in a 30m corridor were evaluated in 134 subjects (73 females, 1384 years). Mean 6MWD and 6MWw were significantly greater in males than in females (622 +/- 80 m, 46,322 +/- 10,539 kg. m vs 551 +/- 71 m, 36,356 +/- 8,289 kg. m, P < 0.05). Four equations significantly overestimated measured 6MWD (range, 32 +/- 71 to 137 +/- 74 m; P < 0.001), and one significantly underestimated it (36 +/- 86 m; P < 0.001). 6MWD significantly correlated with age (r = 0.39), height (r = 0.44), body mass index (r = 0.24), and reported physical activity (r = 0.25). 6MWw significantly correlated with age (r = 0.21), height (r = 0.66) and reported physical activity (r = 0.25). the reference equation devised for walk distance was 6MWD(m) = 622.461 (1.846 x Age(years)) + (61.503 x Gender(males) (= 1;) (females = 0)); r(2) = 0.300. in an additional group of 85 subjects prospectively studied, the difference between measured and the 6MWD predicted with the equation proposed here was not significant (3 +/- 68 m; P = 0.938). the measured 6MWD represented 99.6 +/- 11.9% of the predicted value. We conclude that 6MWD and 6MWw variances were adequately explained by demographic and anthropometric attributes. This reference equation is probably most appropriate for evaluating the exercise capacity of Brazilian patients with chronic diseases.
- ItemSomente MetadadadosSlow Versus Fast Robot-Assisted Locomotor Training After Severe Stroke A Randomized Controlled Trial(Lippincott Williams & Wilkins, 2017) Rodrigues, Thais Amanda; Goroso, Daniel Gustavo [UNIFESP]; Westgate, Philip M.; Carrico, Cheryl; Batistella, Linamara R.; Sawaki, LumyBackground and Purpose: Robot-assisted locomotor training on a bodyweight-supported treadmill is a rehabilitation intervention that compels repetitive practice of gait movements. Standard treadmill speed may elicit rhythmic movements generated primarily by spinal circuits. Slower-than-standard treadmill speed may elicit discrete movements, which are more complex than rhythmic movements and involve cortical areas. Objective: Compare effects of fast (i.e., rhythmic) versus slow (i.e., discrete) robot-assisted locomotor training on a bodyweight-supported treadmill in subjects with chronic, severe gait deficit after stroke. Methods: Subjects (N = 18) were randomized to receive 30 sessions (5 d/wk) of either fast or slow robot-assisted locomotor training on a bodyweight-supported treadmill in an inpatient setting. Functional ambulation category, time up and go, 6-min walk test, 10-m walk test, Berg Balance Scale, and Fugl-Meyer Assessment were administered at baseline and postintervention. Results: The slow group had statistically significant improvement on functional ambulation category (first quartile-third quartile, P = 0.004), 6-min walk test (95% confidence interval [CI] = 1.8 to 49.0, P = 0.040), Berg Balance Scale (95% CI = 7.4 to 14.8, P < 0.0001), time up and go (95% CI = -79.1 to 5.0, P < 0.0030), and Fugl-Meyer Assessment (95% CI = 24.1 to 45.1, P < 0.0001). The fast group had statistically significant improvement on Berg Balance Scale (95% CI = 1.5 to 10.5, P = 0.02). Conclusions: In initial stages of robot-assisted locomotor training on a bodyweight-supported treadmill after severe stroke, slow training targeting discrete movement may yield greater benefit than fast training.
- ItemAcesso aberto (Open Access)Valores de referência para o teste de caminhada com carga progressiva em indivíduos saudáveis: da distância percorrida às respostas fisiológicas(Sociedade Brasileira de Pneumologia e Tisiologia, 2013-04-01) Dourado, Victor Zuniga [UNIFESP]; Guerra, Ricardo Luís Fernandes [UNIFESP]; Tanni, Suzana Erico; Antunes, Letícia Cláudia De Oliveira; Godoy, Irma; Universidade Federal de São Paulo (UNIFESP); Universidade Estadual Paulista (UNESP); Faculdade Marechal RondonOBJECTIVE: To determine reference values for incremental shuttle walk distance (ISWD) and peak physiological responses during the incremental shuttle walk test (ISWT), as well as to develop a series of predictive equations for those variables in healthy adults. METHODS: We evaluated 103 healthy participants > 40 years of age (54 women and 49 men). We fitted each participant with a gas analysis system for use during the ISWT. Oxygen consumption (VO2), carbon dioxide production, minute ventilation, heart rate (HR), ISWD, and maximal walking velocity (MWV) were obtained as primary outcomes. We also assessed hand grip strength (HGS) and lean body mass (LBM). RESULTS: The regression analysis models, including physiological variables, ISWD, and MWV (adjusted for age, body mass, height, and sex), produced R² values ranging from 0.40 to 0.65 (for HR and peak VO2, respectively). Using the models including LBM or HGS, we obtained no significant increase in the R² values for predicting peak VO2, although the use of those models did result in slight increases in the R² values for ISWD and MWV (of 8% and 12%, respectively). The variables ISWD, MWV, and ISWD × body mass, respectively, explained 76.7%, 73.3%, and 81.2% of peak VO2 variability. CONCLUSIONS: Our results provide reference values for ISWD and physiological responses to the ISWT, which can be properly estimated by determining simple demographic and anthropometric characteristics in healthy adults > 40 years of age. The ISWT could be used in assessing physical fitness in the general adult population and in designing individualized walking programs.
- ItemSomente MetadadadosWalking for the Assessment of Balance in Healthy Subjects Older than 40 Years(Karger, 2010-01-01) Spagnuolo, Daniel Lucas [UNIFESP]; Juergensen, Soraia Pilon [UNIFESP]; Iwama, Angela May [UNIFESP]; Dourado, Victor Zuniga [UNIFESP]; Universidade Federal de São Paulo (UNIFESP)Background: the Berg scale and the timed 'up and go' test (TUG) are established measures to assess mobility in frail older adults. As an alternative to self-paced tests to assess aerobic exercise capacity, the incremental shuttle walk test (ISWT) was developed. We hypothesized that ISWT may be useful for the assessment of aerobic capacity and balance simultaneously in healthy adults. Objectives: There are 3 objectives: (1) to evaluate the intra-tester reliability of TUG in healthy subjects; (2) to compare the validity of TUG, ISWT and comfortable gait speed (GS) to evaluate balance assessed by the Berg balance scale, and (3) to evaluate the correlations among these walking tests. Methods: We studied a sample of 64 subjects (82.81% women) aged 40-84 years to assess the intra-tester reliability of TUG. of these, 21 subjects also performed ISWT, GS and the Berg balance scale. We also assessed height, weight, body mass index, spirometry and reported physical activity. Results: the average time to complete TUG was 7.23 +/- 1.27 s. the interclass correlation coefficient of TUG was excellent (0.936; 95% CI: 0.895-0.961). Age (r = 0.36), GS (r = -0.64), GS/height (r = -0.44), ISWT (r = -0.65) and the Berg score (r = -0.65) were correlated with TUG (p < 0.05). the Berg score was significantly (p < 0.05) correlated with GS (r = 0.61) and ISWT (r = 0.61). Moreover, ISWT was mutually related with GS (r = 0.68). We evaluated 2 models of linear regression, using GS and TUG as independent variables in each of them. in the 1st model, GS described 47% of the ISWT variability. in the 2nd, TUG described 42.7% of the ISWT variability. Conclusions: the capacity of walking is related to balance in healthy adults and seniors. Our results suggest the usefulness of ISWT as a new tool for the simultaneous evaluation of the aerobic capacity and balance in healthy subjects. An important part of the ISWT variation was explained by GS and TUG. Secondly, we confirmed the significant influence of age in the TUG performance and the excellent reliability of this field walking test. Copyright (C) 2010 S. Karger AG, Basel