Publications by authors named "Michelle Matos-Duarte"
Article Synopsis
- The study examines various techniques for measuring fat-free mass (FFM) and compares their accuracy against dual-energy X-ray absorptiometry (DXA) in recreational resistance-trained males.
- Participants completed a 10-week training and diet program, showing significant FFM increases via bioelectrical impedance analysis (BIA) and most anthropometric methods, but not detected by DXA or two specific anthropometric equations.
- Ultimately, the study suggests that different methods yield varying FFM results, recommending the Dunne et al. equation for monitoring FFM changes and cross-sectional analysis.
Background: In healthy older adults, the two-minute step test (2MST) does not have its concurrent validity tested against the six-minute walk test (6MWT), which is a valid cardiorespiratory fitness test frequently applied in geriatric samples.
Objective: To derive an equation to predict 6MWT from 2MST and to observe the agreement between observed and estimated 6MWT distances.
Methods: 6MWT and 2MST were measured in 51 older adults (72.
Objectives: The aim of this study was to examine whether antioxidant vitamin supplementation with vitamin C (VitC) and vitamin E (VitE) affects the hypertrophic and functional adaptations to resistance training in trained men.
Methods: This was a double-blind, randomized controlled trial in which participants were supplemented daily with VitC and VitE ( n = 12) or placebo ( n = 11) while completing a 10-wk resistance training program accompanied by a dietary intervention (300 kcal surplus and adequate protein intake) designed to optimize hypertrophy. Body composition (dual-energy x-ray absorptiometry), handgrip strength, and one-repetition maximum (1-RM), maximal force (F0), velocity (V0), and power (Pmax) were measured in bench press (BP) and squat (SQ) tests conducted before and after the intervention.
The effects of caffeine were investigated in judo, boxing, taekwondo and Brazilian jiu-jitsu. However, this substance was never investigated regarding traditional jiu-jitsu. Therefore, the aim of this research was to analyze the effects of caffeine in the Special Judo Fitness Test (SJFT) and technical variables during combat in traditional jiu-jitsu elite athletes.
View Article and Find Full Text PDFCaffeine increases vertical jump, although its effects on kinetics and kinematics during different phases of bilateral and unilateral jumps remain unclear. The aim of this study was to identify the effects of 3 mg/kg on kinetic, kinematic and temporal variables in the concentric and eccentric phases of bilateral and unilateral countermovement jumps. A total of 16 Spanish national team traditional Jiu-Jitsu athletes took part in two experimental trials (3 mg/kg caffeine or placebo) in a randomized, double-blind crossover study.
View Article and Find Full Text PDF