Effects of acute beetroot juice intake on performance, maximal oxygen uptake, and ventilatory efficiency in well-trained master rowers: a randomized, double-blinded crossover study.

Background: Beetroot juice (BRJ) intake has been considered a practical nutritional strategy among well-trained athletes. This study aimed to assess the effects of BRJ intake on performance, cardiorespiratory and metabolic variables during a simulated 2000-meter rowing ergometer test in well-trained master rowers.

Method: Ten well-trained male master rowers (30-48 years) participated in a randomized, double-blind, crossover design for 3 weeks.

Validation of the Spanish Activity Questionnaire in COPD (SAQ-COPD) in Patients with Chronic Obstructive Pulmonary Disease.

Purpose: The Spanish Activity Questionnaire in COPD (SAQ-COPD) is a short, simple physical activity (PA) measurement instrument for patients with chronic obstructive pulmonary disease (COPD). In this study, we analyzed its validity and sensitivity to change.

Methods: Prospective scale validation study.

Circulating nitrate-nitrite reduces oxygen uptake for improving resistance exercise performance after rest time in well-trained CrossFit athletes.

This study aimed to determine the effects of circulating nitrate plus nitrite (NOx) concentrations on resistance exercise performance, VO and biomarkers of muscle damage. Eleven well-trained male CrossFit athletes (29.2 ± 3.

Cardiorespiratory, Metabolic and Muscular Responses during a Video-Recorded Aerobic Dance Session on an Air Dissipation Platform.

Background: Aerobic dance (AD) is an appropriate physical activity for improving cardiorespiratory fitness. This study aimed to compare cardiorespiratory and metabolic responses, and muscle fatigue between an air dissipation platform (ADP) and a hard surface during a video-recorded AD session.

Methods: 25 healthy young women (23.

Understanding the effects of beetroot juice intake on CrossFit performance by assessing hormonal, metabolic and mechanical response: a randomized, double-blind, crossover design.

Background: Acute beetroot juice (BJ) intake has shown to enhance aerobic and anaerobic performance. However, no studies have evaluated the effects of BJ intake on CrossFit (CF) performance by linking hormonal, metabolic, and mechanical responses. The purpose of this study was to determine the causal physiological association between hormonal, metabolic and mechanical responses, and CF workouts performance after acute BJ intake.

Ventilatory efficiency during constant-load test at lactate threshold intensity: Endurance versus resistance exercises.

There is a lack of evidence about the ventilatory efficiency in resistance exercises despite the key role played in endurance exercises. This study aimed to compare the cardiorespiratory, metabolic responses and ventilatory efficiency between half-squat (HS) and cycle ergometer exercises during a constant-load test at the lactate threshold (LT) intensity. Eighteen healthy male participants were randomly assigned in a crossover design to carry out HS or cycle ergometer tests.

The Slow Component of Oxygen Uptake and Efficiency in Resistance Exercises: A Comparison With Endurance Exercises.

Introduction: There is a lack of information regarding the slow component of oxygen uptake (VOsc) and efficiency/economy in resistance exercises despite the crucial role played in endurance performance.

Purpose: this study aimed to compare the VOsc, efficiency/economy, metabolic, cardiorespiratory responses, rating of perceived effort and mechanical fatigue between cycling and half-squat (HS) exercises during a constant-load test at lactate threshold (LT) intensity.

Methods: Twenty-one healthy men were randomly assigned in a crossover design to perform cycle-ergometer or HS tests.

Oxygen Uptake Slow Component and the Efficiency of Resistance Exercises.

Garnacho-Castaño, MV, Albesa-Albiol, L, Serra-Payá, N, Gomis Bataller, M, Pleguezuelos Cobo, E, Guirao Cano, L, Guodemar-Pérez, J, Carbonell, T, Domínguez, R, and Maté-Muñoz, JL. Oxygen uptake slow component and the efficiency of resistance exercises. J Strength Cond Res 35(4): 1014-1022, 2021-This study aimed to evaluate oxygen uptake slow component (V̇o2sc) and mechanical economy/efficiency in half squat (HS) exercise during constant-load tests conducted at lactate threshold (LT) intensity.

Creation of the SAQ-COPD Questionnaire to Determine Physical Activity in COPD Patients in Clinical Practice.

Introduction: Physical activity (PA) is a significant clinical dimension in COPD, but no useful tools are available to determine this variable in routine clinical practice.

Objective: To create a simple, easy-to-use, specific questionnaire to detect PA deficits.

Method: A multidisciplinary panel of COPD experts was formed to review PA, its determinants, and measuring methods.

The anterior mini-open approach for femeroacetabular impingement: Gait and functional assessment at one year post-surgery.

Objective: This study aimed to evaluate the outcome of the anterior mini-open approach of the hip for femoroacetabular impingement (FAI) at one year post-surgery by use of questionnaires, functional capacity tests and biomechanical studies.

Design: This is a case series prospective study. A total of 14 patients diagnosed of FAI were included.

What factors have influence on persistence of neck pain after a whiplash?

Study Design: Prospective longitudinal study.

Objective: To identify prognosis factors that allow us to identify patients with risk of developing chronic symptoms and disabilities after a whiplash injury.

Summary Of Background Data: The prognosis factors for poor recovery in acute whiplash are not conclusive.

[Postural control disorders in initial phases of whiplash].

Background And Objective: Dizziness of variable intensity is a frequent complaint in patients who suffered whiplash and largely documented balance disturbances. The objective of the study was to identify balance disorders in early stage of whiplash after road traffic accidents.

Patients And Method: Ninety nine women were included in the study.

Angular position, range of motion and velocity of arm elevation: a study of consistency of performance.

Background: To define the normal range, velocity and consistency of the movement of active arm elevation with humerus in neutral or in external rotation using a simplified kinematic model.

Methods: Nine normal volunteers and the non-involved side of twenty five patients with unilateral shoulder lesion participated. A 3D optoelectronic tracking system was used to register the movement of raising the arm from the normal upright position to maximal elevation in a repetitive way.