Results: 14

Analysis of muscle fatigue recovery in skiers: a nutritional intervention

ABSTRACT Introduction: Skiing is a sport that demands the high performance of motor coordination with high energy consumption, factors that strongly influence muscle fatigue. Athletes who experience this phenomenon tend to present a decline in performance, generating psychological irritability and impai...

Entrenamiento con sobrecarga, duración de la repetición e hipertrofia: una revisión de la literatura

RESUMEN En el contexto del entrenamiento con sobrecargas, la duración de la repetición (tempo) hace referencia al tiempo total que dura una sola repetición dentro de una serie de un ejercicio, siendo el resultado de la suma entre la fase concéntrica, isométrica y excéntrica del levantamiento (o vic...

Fallo muscular en la hipertrofia con entrenamiento de contra resistencia: una revisión sistemática

RESUMEN Objetivo: Determinar cuáles son los efectos que tiene el fallo muscular en el desarrollo de la hipertrofia en el entrenamiento de contra resistencia. Métodos: Estudio de tipo revisión sistemática, es decir, de enfoque cualitativo y de diseño no experimental. Se realizó una búsqueda sistem�...

Repetitions to failure increase pectoralis major activation with similar neuromuscular fatigue in trained men

ABSTRACT Resistance training protocols performed to muscle failure (MF) have been employed in an attempt to maximize activation and neuromuscular fatigue. Therefore, the aim of this study was to compare the surface electromyography amplitude (EMGRMS) and frequency (EMGFREQ) of the pectoralis major betwee...

Acute effect of sodium bicarbonate supplementation on the performance during CrossFit® training

Motriz (Online); 26 (4), 2020
Abstract Aim: To verify the acute effect of sodium bicarbonate (NaHCO3) supplementation on performance during CrossFit® workout. Methods: Nine experienced males (30.8 ± 3.5 years; 84.4 ± 9.5 kg; 177.5 ± 4.03 cm; 2.2 ± 1.0 years) in CrossFit® participated in this study. They were allocated to tw...

Neuromuscular and physiological responses to different training loads in Randori of elite judo athletes

Motriz (Online); 26 (2), 2020
Abstract Aim: To compare two different randori structure (high volume and short pauses - TRAD training vs low volume with long pauses - COMP training) in the neuromuscular and metabolic responses of elite judo athletes. Methods: The first situation (TRAD) consisted of 12 randoris of 5 minutes with 45 s...

Disability as a determinant of fatigue in MS patients

Arq. neuropsiquiatr; 77 (4), 2019
ABSTRACT Fatigue is one of the most frequent and disabling symptoms in multiple sclerosis (MS). Central, psychological, and peripheral factors may contribute to the occurrence of fatigue. Objectives: The current study aimed to evaluate potential fatigue determinants in patients with relapsing-remitting ...

Rate of force development to evaluate the neuromuscular fatigue and recovery after an intermittent isometric handgrip task with different blood flow restriction conditions

Motriz (Online); 25 (1), 2019
Aim: To investigate the neuromuscular fatigue and recovery after an intermittent isometric handgrip exercise (IIHE) executed until failure with different blood flow restriction (BFR) conditions (free flow, partial and total vascular restriction). Methods: Thirteen healthy men carried out an IIHE at 45...

Botulinum toxin for hereditary spastic paraplegia: effects on motor and non-motor manifestations

Arq. neuropsiquiatr; 76 (3), 2018
ABSTRACT Motor and non-motor manifestations are common and disabling features of hereditary spastic paraplegia (HSP). Botulinum toxin type A (Btx-A) is considered effective for spasticity and may improve gait in these patients. Little is known about the effects of Btx-A on non-motor symptoms in HSP patie...

Efeito do tempo de contração e repouso na atividade dos músculos masseter e temporal anterior em indivíduos com DTM

CoDAS; 28 (2), 2016
RESUMO Objetivo O principal objetivo deste estudo foi investigar o efeito do tempo de contração e repouso na atividade dos músculos masseter e temporal. Métodos 49 sujeitos do sexo feminino com idade entre 18 e 30 anos foram divididos em grupos DTM (n: 26) e controle (n: 23). A eletromiografia de s...