Humberto Miranda

Federal University of Rio de Janeiro | UFRJ · Departamento de Ginásticas

Aims: To investigate the acute effects of resistance exercise (RE) inter-set rest intervals on the repetition performance and perceived exertion in multi- and single-joint exercises with near-maximal loads in women. Study Design: A quasi-experimental controlled trial. Place and Duration of Study: The recruiting was performed in Petropolis city, and...

The present study aimed to compare the effect of 24 sessions of stretching exercises performed before resistance exercises versus resistance exercise sessions on the hemodynamic responses of sedentary individuals. Thirty volunteers (26.76±6.29 years old, 81.56±10.66 kg body weight, 1.74±0.07 m height, and 26.74 ±.82 kg/m2 body mass index) participa...

This study aimed to assess the acute effects of ischemic preconditioning at varying pressures on training volume, work, and fatigue index during an upper limb workout session. The sample consisted of 13 participants, comprised of six women and seven men. Each subject was directed to two training sessions that included a bench press and a closed-row...

The present study aimed to compare the effect of 24 sessions of stretching exercises performed before resistance exercises versus resistance exercise sessions on the hemodynamic responses of sedentary individuals. Thirty volunteers (26.76±6.29 years old, 81.56±10.66 kg body weight, 1.74±0.07 m height, and 26.74 ±.82 kg/m2 body mass index) participa...

Introduction: Tactical athletes need to develop strength and lower limb lean mass (LL LM) to perform effectively. Resistance training (RT) is the most effective way to achieve these goals. Two periodization models stand out: traditional linear periodization (TLP) and daily undulating periodization (DUP). Objective: To verify the effect of lower lim...

This study compared blood pressure (BP) and heart rate variability (HRV) values considering the angiotensin-converting enzyme (ACE) polymorphisms and physical activity (PA) level. Participants were stratified according to their ACE polymorphism and PA level. Polymerase chain reaction (PCR) was used to detect polymorphisms and PA level was assessed...

The purpose of present study was to compare lower limb power, linear speed, and change of direction performance in non-resistance trained soccer athletes across three distinct age categories (U15, U17, and U20). Seventy-six male soccer athletes of the same professional club participated in this study [U15 (n=25), U17 (n=20) e U20 (n=31)]. All parti...

Background: Postactivation performance enhancement (PAPE) is an acute response of increased muscle performance following a conditioning activity (CA), generally prescribed based on the percentage of a one-repetition maximum. However, it is unknown how the PAPE response is affected when the CA is performed near the optimum power zone. The purpose o...

Physical conditioning programs often apply high-intensity resistance training (HIRT), but there is a lack of research investigating the effects of using fixed or self-selected resting intervals between exercises on the performance, relative intensity, and affective perception during this modality of training. This study compared fixed versus self-s...

Background The peak oxygen uptake (VO2peak) is considered the most reliable parameter for evaluating cardiorespiratory fitness and guiding physical training. However, not everyone has access to VO2peak measurements. As a more accessible alternative, heart rate (HR) variables have emerged. Aim To explore the correlation between HR responses during...

The purpose of this study was to examine the effects of static stretching (SS) of agonists and antagonists between sets on the total training volume (TTV) performed across multiple sets for the leg extension exercise. Twelve male subjects with experience in resistance training (RT) participated in this study. Subjects performed 10 repetition maximu...

RESUMO: Introdução: alguns estudos mostram que o alongamento pode promover efeitos deletérios no desempenho da força. Todavia, algumas evidências elucidam que os exercícios de alongamento, quando aplicados nos músculos antagonistas, podem promover melhoras no desempenho da força de músculos agonistas. Objetivo: investigar o efeito agudo do alongame...

The purpose of this study was to investigate the effects of the foam rolling technique and static stretching on perceptual and neuromuscular parameters following a bout of high-intensity functional training (HIFT), which consisted of 100 pull-ups, 100 push-ups, 100 sit-ups, and 100 air squats (Angie benchmark) in recreationally trained men (n = 39)...

ISSN 1981-9900 versão eletrônica P e r i ó d i c o do I n s t i t u t o B r a s i l e i r o de P e s q u i s a e E n s i n o e m F i s i o l o gi a do E x e r c í c i o w w w. i b p e f e x. c o m. b r / w w w. r b p f e x. c o m. b r EFEITOS AGUDOS DE DIFERENTES VOLUMES DE ALONGAMENTO ESTÁTICO DE ANTAGONISTAS NO DESEMPENHO DE REPETIÇÕES DE AGONIST...

Introdução: A hipertensão arterial sistêmica (HAS) é um fator de risco relacionado a várias comorbidades. Após uma sessão de treinamento de força (TF), a pressão arterial sistólica (PAS) e pressão arterial diastólica (PAD) podem ser reduzidas abaixo dos valores basais. Este fenômeno é conhecido como hipotensão pós-exercício (HPE). Os efeitos do TF...

Foam rolling (FR) is a practice that has increased in popularity before and after resistance training. The purpose of this study was to compare the acute effects of different foam rolling periods for the lower body muscles on subsequent performance, myoelectric activity and rating of perceived exertion in trained men. Fourteen men (26.2 ± 3.2 years...

Objective The purpose of this study was to investigate the association between trunk muscle endurance with change of direction (T test), single leg squat and power performance in the Special Military Police Force (BOPE) of Rio de Janeiro. Equipments and methods One hundred and three military men specialized in Special Operation and Tactical Action...

O objetivo do presente estudo foi verificar o efeito agudo de diferentes intensidades de séries pareadas agonistas e antagonistas sobre o desempenho de repetições máximas. Participaram de estudo, 12 homens recreacionalmente treinados. O procedimento experimental aconteceu ao longo de cinco sessões: o primeiro constou de anamnese, medidas antropomét...

Objectives: This study examined the association between handgrip strength and body composition, physical fitness, and biomarkers in postmenopausal women with metabolic syndrome. Methods: A total of 75 postmenopausal women were diagnosed with metabolic syndrome participated in this study. Muscle strength was assessed via a hydraulic grip strength...

Recent studies have observed that stretching applied to antagonist muscles can promote improvement in agonist muscle performance. The purpose of this study was to investigate the effect of different numbers of interset proprioceptive neuromuscular facilitation (PNF) stretching for the antagonists on the total number of repetitions completed for the...

Behenck C, Sant'Ana H, Castro JBP, Willardson JM, Miranda H. The effect of different rest intervals between agonist-antagonist paired sets on training performance and efficiency. J Strength Cond Res 2022;36(3):781-786. The purpose of this study was to verify the effect of different rest intervals (RIs) between agonist-antagonist paired sets (APS) o...

Objective Police officers, particularly the ones who are trained to be on “special forces”, perform a wide range of hazardous and physically demanding activities when aiming to protect and serve. The purpose of this study was to investigate the association between lower limb and trunk muscle endurance with drop vertical jump (DVJ) height in a speci...

ISSN 1981-9900 versão eletrônica P e r i ó d i c o do I n s t i t u t o B r a s i l e i r o de P e s q u i s a e E n s i n o e m F i s i o l o gi a do E x e r c í c i o w w w. i b p e f e x. c o m. b r / w w w. r b p f e x. c o m. b r

Purpose: This study aimed to evaluate whether there is a correlation between the maximum strength of upper limb when performing a multijoint exercise and peak oxygen uptake (V’O2peak) in Chronic Heart Failure (CHF) subjects. Method: This cross-sectional study involved CHF subjects with a left ventricular ejection fraction (LVEF) less than 50%, who...

A educação cruzada corresponde a uma adaptação neural em que ocorre a melhoria de desempenho do membro não treinado após um período de prática unilateral do membro contralateral homólogo. Sendo assim, há uma transferência de força por meio de mecanismos do córtex motor durante o movimento unilateral. O objetivo do estudo foi investigar os efeitos d...

Abstract: Introduction: It is common for postmenopausal women to receive a vitamin D supplementation prescription to assist in preventing future falls and to maintain bone health. However, the association between vitamin D supplementation and physical fitness components has not been studied in older women with diabetes. Objective: We examined the i...

Introdução: No treinamento de força, o aquecimento é frequentemente utilizado na preparação do indivíduo para a atividade principal. Atualmente, o foam rolling (FR) tem sido utilizado como estratégia de aquecimento. Objetivo:Comparar o efeito agudo de quatro diferentes protocolos de aquecimento com e sem o uso do FR, sobre os músculos agonistas e a...

International Journal of Exercise Science 14(4): 902-911, 2021. The aim of this study was to compare the effect of post-activation potentiation (PAP) on countermovement jump (CMJ) using different set configurations and loads on conditioning activity (CA) in highly trained athletes. Sixteen national level swimmers participated in this study and perf...

Introduction: The aim of the present study was to investigate the effects of postactivation potentiation (PAP) in vertical and horizontal jump performance in pre-pubertal children. Material and method: One hundred and nineteen children (65 girls and 54 boys; 6.8 ± 0.7 years old; 124.5 ± 6.4 cm; 25.2 ± 5.1 kg) participated in this study. This was a...

Background: Foam rolling (FR) has become very popular in recent years; however, the practice of FR between sets of resistance training (RT) for the lower limbs needs further examination. Purpose: Therefore, the purpose of the present study was to examine the effect of FR for the agonists (quadriceps) and antagonists (hamstrings) between multiple...

Objectives: The present study compared cardiorespiratory capacity between cirrhotic patients and healthy subjects. Methods: Nineteen cirrhotic patients and 19 healthy subjects, paired by age and gender, participated in the study. Volunteers performed an incremental cardiopulmonary test with a ramp protocol, a ventilatory and metabolic variables...

Abstract Aim: Several health professionals prescribe static stretching exercises (SS) as essential for those that practice physical exercises, for injury prevention and performance improvement, although there is still no consensus. There are few studies on the effects of SS use on warming up. Thus study aimed to compare the effects of the inclusion...

O objetivo do estudo foi avaliar e comparar a carga deslocada noteste de 10 RM sob as condições com e sem a privação visual. A amostra foicomposta por 13 homens treinados em força (idade 27,7 ±3 anos). Foramrealizadas quatro sessões para teste e reteste de 10 RM nos exercícios: Supinohorizontal (SH) e Hack Machine (HM). Para a análise estatística,...

The purpose of this study was to compare metabolic, hemodynamic and performance of traditional (TRA) resistance training vs. Ponto zero method. Sixteen recreationally trained men (26.6±5.1 years old; 83.4±13.9 kg; 176.7±7.1cm; 26.60±3.39BMI) participated in this study. Subjects visited the laboratory four times, in which the first visit, anthropome...

Background The post-exercise hypotension response (PEH) has been shown to be dependent on the load and volume of a resistance training (RT) prescription. Aim The aim of the present study was to compare the PEH between a low-load and high-volume and a high-load and low-volume RT session. Methods Ten young men with more than 2 years of RT experienc...

Objective The purpose of this study was to investigate the surface electromyographic (EMG) activity of the medial (GM) and lateral (GL) heads of the gastrocnemius muscle during plantar flexion performed in standing or seated positions, and with a neutral or dorsiflexed ankle. Introduction The tríceps surae (gastrocnemius and soleus) is an essentia...

Vários métodos de aquecimento têm sido empregados no campo do treinamento esportivo. O foam rolling (FR) é uma das técnicas mais populares. No entanto, permanece o esclarecimento sobre os períodos ótimos de FR para melhorar ou manter o desempenho. Portanto, o objetivo do presente estudo foi explorar o efeito agudo de diferentes períodos do FR no de...

Introdução: Praticantes de musculação, de todos os níveis, buscam estratégias eficazes e eficientes para otimizar o treinamento de força. Nesse contexto, o alongamento estático nos músculos antagonistas como aquecimento parece proporcionar melhorias no desempenho de força nos músculos agonistas. Objetivo: Avaliar o efeito agudo no desempenho de fo...

Influence of different volumes of the stretching method facilitation neuromuscular propricoceptive in the antagonits on the performance of maximum repetitions of agonists Introduction: Previous studies evidence that stretching promotes deleterious effects in performance of strenght, power and athletic performance. However, the potencial effects of...

2 Biodynamic laboratory of exercise, health, and performance, castelo Branco university, rio de Janeiro, Brazil; 3 Kinesiology center of performance, Biodesp institute, rio de Janeiro, Brazil; 4 department of Kinesiology, california State university, fullerton, ca, uSa; 5 department of health and human performance, Montana State university, Billing...

Objective: The purpose of this study was to examine the effect of pre-fatiguing the triceps brachii on subsequent strength performance and myoelectric activity in the barbell, dumbbell, and Smith machine bench press. Method: Nineteen trained men participated of this study (27.9 ± 4.5 years; 1.72 ± 0.1 m; 80.3 ± 9.2 kg). Ten-repetition maximum loads...

Objective: the aim of this study was to compare differences in volume load, total repetition performed and rating of perceived exertion between static stretching and self-myofascial release on antagonist muscles. Methods: Eighteen recreationally trained men (23.4 ± 3.3 years; 80.7 ± 11.1 kg; 1.76 ± 0.06 cm) performed 10 repetitions maximum test and...

Objectives The purpose of this study was to examine myoelectric activity, fatigue index and volume load adopting different intersession recovery periods between repeated resistance training (RT) bouts. Methods Fifteen recreationally-trained men participated in this study. Eight-repetition maximum (8RM) loads were determined for the bench press (BP...

Souza PA, Teixeira DR, Della Corte J, Batista CAS, Miranda HL, Paz GA. Acute effect of intra-set static stretching on antagonists versus passive interval on the performance of maximum repetitions of agonists in leg extension machine. Rev Bras Cineantropom Desempenho Hum. 2020;22(e60225):1-10. The aim of this study was to investigate the acute effec...

Purpose: This study compared the acute effects of two different resistance training methods on heart rate variability, blood pressure, and rating of perceived exertion in patients with liver cirrhosis. Methods: Ten patients with Child-Pugh A (seven women and three men) participated in two experimental sessions, in random order: The traditional set...

Background: A challenging aspect of research in sports science is designing and conducting studies that simulate actual workout scenarios, especially with application to resistance training (RT). Therefore, the purpose of this study was to compare the effects of RT sessions performed in differing workout formats on myoelectric activity, strength p...

Evidências sugerem que um programa periodizado proporciona maiores ganhos de força do que um programa não periodizado, sendo a periodização linear (PL) um modelo que pode ser utilizado para indivíduos sem ou com pouca experiência em treinamento de força (TF). Objetivo: investigar os efeitos da PL versus não linear (PNL) sobre a força muscular em i...

Introduction: Introduction: In military graduations the individual must be in an orthostatic (standing) position, with maximum immobility and, often, bearing external loads. To adapt to this effort, physiological changes occur which can be harmful. However, strategies can be adopted to alleviate these changes, making the activity less exhausting, w...

Objective: The purpose of the present study was to evaluate the effectiveness of a three-week power-training block with two different cluster set configurations using pneumatic equipment on sprint performance. Method: Thirty recreationally active subjects participated in this study (18 female and 12 male). The subjects were distributed randomly int...

Introdução: Superfícies instáveis podem ser utilizadas no treinamento resistido a fim de promover maiores estímulos no sistema neuromuscular. Objetivo: Verificar o efeito de diferentes intensidades de força no agachamento nas superfícies estável (SE) e instável (SI) sobre a atividade eletromiográfica (EMG) e a percepção subjetiva de esforço (PSE)....

Paz GA, Maia MF, Sant'Ana H, Miranda H, Castro JBP, Lima VP. Positional relationship between various performance tests and physical profile of Brazilian football athletes. Acta Scientiarum. Health Sciences, 2019 [In Press]. The purpose of this study was to investigate the association among anthropometric (height and weight) and physical parameters...

O objetivo deste estudo foi investigar o efeito da potencialização pós-ativação (PPA) na performance de nadadores velocistas. Participaram dez nadadores homens adultos (19,6 ± 2,2 anos, altura 181,4 ± 2,2 cm; peso 77 ± 9 kg, n=10), com no mínimo cinco anos de experiência em natação competitiva de alta performance. Todos os nadadores foram avaliados...

O objetivo deste estudo foi investigar o efeito da potencialização pós-ativação (PPA) na performance de nadadores velocistas. Participaram dez nadadores homens adultos (19,6 ± 2,2 anos, altura 181,4 ± 2,2 cm; peso 77 ± 9 kg, n=10), com no mínimo cinco anos de experiência em natação competitiva de alta performance. Todos os nadadores foram avaliados...

Objectives: To compare the effects of combinations of resistance training (RT) and static stretching (SS) on heart rate (HR), systolic pressure (SBP), diastolic pressure (DBP), rate pressure product (RPP), oxygen saturation (SpO2), rating of perceived effort (RPE), and heart rate variability (HRV) in men. Methods: Twelve normotensive healthy men...

Volume load and efficiency with different strength training methods 69 Arch Med Deporte 2019;36(3): Artículo original Resumen Este estudio comparó las diferencias en la carga de volumen (CV), la eficiencia y la calificación del esfuerzo percibido (CEP) entre cuatro métodos de entrenamiento diferentes. Doce hombres entrenados, seleccionados por conv...

Desempenho de repetições e tempo sob tensão no método cluster sets vs. tradicional em uma sessão de treinamento de força Repetition performance and time under tension of cluster sets vs. traditional in a resistance training session Resumo Introdução: O método cluster sets (CLS) surge como um método de treinamento de força (TF) incluindo pequenos in...

Volume load and efficiency with different strength training methods 69 Arch Med Deporte 2019;36(3): Artículo original Resumen Este estudio comparó las diferencias en la carga de volumen (CV), la eficiencia y la calificación del esfuerzo percibido (CEP) entre cuatro métodos de entrenamiento diferentes. Doce hombres entrenados, seleccionados por conv...

Desempenho de repetições e tempo sob tensão no método cluster sets vs. tradicional em uma sessão de treinamento de força Repetition performance and time under tension of cluster sets vs. traditional in a resistance training session Resumo Introdução: O método cluster sets (CLS) surge como um método de treinamento de força (TF) incluindo pequenos in...

International Journal of Exercise Science 12(4): 657-665, 2019. The purpose of this study was to analyze the effect of different orders of exercises in circuit training on strength and functional fitness in older women over a 12-week period. After 10 repetition maximum (10-RM) and functional fitness baseline testing, thirty older women were randoml...

Introdução: O método cluster sets (CLS) surge como um método de treinamento de força (TF) incluindo pequenos intervalos dentro da série. Objetivo: comparar o desempenho agudo do método CLS e o método tradicional (TRAD). Métodos: participaram do estudo 14 homens com experiência em TF. Os participantes realizaram dois protocolos distintos: TRAD - trê...

Study design: Cross-over study. Context: The squat, single-leg squat, forward lunge, and reverse lunge are fundamental movements often performed in activities of daily living, sports competitions, and sport-specific training. Objective: The purpose of this study was to investigate the effect of visual feedback with a laser sensor (VFLS) versus...

The purpose of this study was to analyze and compare heart rate (HR), heart rate variability (HRV), and blood pressure (BP) responses during and after circuit resistance training with 1 min. (CIR1) vs. 2 min. (CIR2) rest intervals between exercises in liver cirrhosis patients. 10 patients (7 women, 3 men) participated in 2 experimental sessions (CI...

Introdução: Ao iniciar uma sessão de treinamento de força é recomendado aquecimento como forma de preparação à atividade principal, com o objetivo de melhorar a capacidade fisiológica do indivíduo para determinadas tarefas motoras. Objetivo: O objetivo do presente estudo foi comparar o efeito de diferentes métodos de aquecimento no desempenho de re...

The purpose of this study was to investigate the influence of exercise order on volume load (VL) and myoelectric activation (EMG) during the bench press (BP), military press (MP) and close-grip bench press (CGBP) exercises executed with a barbell and Smith machine. Twelve men experienced in resistance training performed four different exercise sess...