Oscar F. Araneda
YOU?
Author Swipe
View article: Chilean National Sports Talent Detection System: Influence of Biological Age, Sex, and Geographic Area
Chilean National Sports Talent Detection System: Influence of Biological Age, Sex, and Geographic Area Open
The purpose of this study was to assess the methodology for selecting sports talent in the Chilean Promising Athletes Program (CPAP). Methods: The standing broad jump (SBJ), medicine ball chest throw (MBCT), thirty-meter running sprint (RS…
View article: Evaluación de la carga interna del ejercicio físico mediante la recuperación de la variabilidad de la frecuencia cardíaca en triatletas
Evaluación de la carga interna del ejercicio físico mediante la recuperación de la variabilidad de la frecuencia cardíaca en triatletas Open
El objetivo de este estudio fue determinar la carga interna maximal y sub-maximal (umbrales ventilatorios) a través de la recuperación parasimpática posterior a un ejercicio físico de tres modalidades deportivas (natación, ciclismo y carre…
View article: El entrenamiento de los músculos inspiratorios durante 3 semanas aumenta la presión inspiratoria, pero no el rendimiento en jóvenes nadadores de élite chilenos (Inspiratory muscle training for 3 weeks increases maximal inspiratory pressure but not the performance in young Chilean elite swimmers)
El entrenamiento de los músculos inspiratorios durante 3 semanas aumenta la presión inspiratoria, pero no el rendimiento en jóvenes nadadores de élite chilenos (Inspiratory muscle training for 3 weeks increases maximal inspiratory pressure but not the performance in young Chilean elite swimmers) Open
El entrenamiento muscular inspiratorio (IMT) ha mostrado algunos beneficios sobre el rendimiento en deportistas dependiendo de la intensidad, duración y adherencia al entrenamiento. Investigamos el efecto de un protocolo reducido en extens…
View article: Oxygen Saturation Curve Analysis in 2298 Hypoxia Awareness Training Tests of Military Aircrew Members in a Hypobaric Chamber
Oxygen Saturation Curve Analysis in 2298 Hypoxia Awareness Training Tests of Military Aircrew Members in a Hypobaric Chamber Open
We aim to provide reference values for military aircrews participating in hypoxia awareness training (HAT). We describe several parameters with potential biomedical interest based on selected segments and slopes of the changes in oxygen sa…
View article: Monitoring Changes in Oxygen Muscle during Exercise with High-Flow Nasal Cannula Using Wearable NIRS Biosensors
Monitoring Changes in Oxygen Muscle during Exercise with High-Flow Nasal Cannula Using Wearable NIRS Biosensors Open
Exercise increases the cost of breathing (COB) due to increased lung ventilation (V˙E), inducing respiratory muscles deoxygenation (∇SmO2), while the increase in workload implies ∇SmO2 in locomotor muscles. This phenomenon has been propose…
View article: Systemic and Pulmonary Inflammation/Oxidative Damage: Implications of General and Respiratory Muscle Training in Chronic Spinal-Cord-Injured Patients
Systemic and Pulmonary Inflammation/Oxidative Damage: Implications of General and Respiratory Muscle Training in Chronic Spinal-Cord-Injured Patients Open
Chronic spinal cord injury affects several respiratory-function-related parameters, such as a decrease in respiratory volumes associated with weakness and a tendency to fibrosis of the perithoracic muscles, a predominance of vagal over sym…
View article: An Igor Pro 8.01 Procedure to Analyze Pulse Oximetry during Acute Hypoxia Test in Aircrews
An Igor Pro 8.01 Procedure to Analyze Pulse Oximetry during Acute Hypoxia Test in Aircrews Open
The recognition of hypoxia symptoms is a critical part of physiological training in military aviation. Acute exposure protocols have been designed in hypobaric chambers to train aircrews to recognize hypoxia and quickly take corrective act…
View article: Average and Interindividual Effects to a Comprehensive Cardiovascular Rehabilitation Program
Average and Interindividual Effects to a Comprehensive Cardiovascular Rehabilitation Program Open
Background: To describe the average effects and the interindividual variability after a comprehensive outpatient cardiovascular rehabilitation (CCR) program using concurrent exercise training prescribed according to cardiovascular risk str…
View article: Oxidative Stress Parameters and Morphological Changes in Japanese Medaka (Oryzias latipes) after Acute Exposure to OA-Group Toxins
Oxidative Stress Parameters and Morphological Changes in Japanese Medaka (Oryzias latipes) after Acute Exposure to OA-Group Toxins Open
Toxins of the OA-group (okadaic acid, OA; dinophysistoxin-1, DTX-1) are the most prevalent in the fjords of southern Chile, and are characterized by their potential harmful effects on aquatic organisms. The present study was carried out to…
View article: Atmospheric Pollutants Affect Physical Performance: A Natural Experiment in Horse Racing Studied by Principal Component Analysis
Atmospheric Pollutants Affect Physical Performance: A Natural Experiment in Horse Racing Studied by Principal Component Analysis Open
The impact of some atmospheric pollutants (PM10, PM2.5, O3, NO2, NO, SO2, CO), humidity and temperature were studied on the performance of thoroughbred racehorses. The study included 162 official handicap races held in 2012 in Santiago de …
View article: Horse Racing as a Model to Study the Relationship between Air Pollutants and Physical Performance
Horse Racing as a Model to Study the Relationship between Air Pollutants and Physical Performance Open
This study proposes the theoretical principles for the selection of a sample of horse races to study the relationship between air pollutants and performance. These criteria were then applied to an original dataset comparing the correlation…
View article: Paralytic Shellfish Toxins Accumulation Induces Antioxidant Responses in Tissues of Mytilus chilensis, Ameghinomya antiqua, and Concholepas concholepas during a Bloom of Alexandrium pacificum
Paralytic Shellfish Toxins Accumulation Induces Antioxidant Responses in Tissues of Mytilus chilensis, Ameghinomya antiqua, and Concholepas concholepas during a Bloom of Alexandrium pacificum Open
Paralytic shellfish toxins (PST) consist of a set of analogues which are produced by harmful algal blooms (HABs).During a HAB, filter-feeding marine organisms accumulate the dinoflagellates and concentrate the toxins in the tissues.In this…
View article: Inflammation and Oxidative Stress as Common Mechanisms of Pulmonary, Autonomic and Musculoskeletal Dysfunction after Spinal Cord Injury
Inflammation and Oxidative Stress as Common Mechanisms of Pulmonary, Autonomic and Musculoskeletal Dysfunction after Spinal Cord Injury Open
One of the etiopathogenic factors frequently associated with generalized organ damage after spinal cord injury corresponds to the imbalance of the redox state and inflammation, particularly of the respiratory, autonomic and musculoskeletal…
View article: Determination of the Respiratory Compensation Point by Detecting Changes in Intercostal Muscles Oxygenation by Using Near-Infrared Spectroscopy
Determination of the Respiratory Compensation Point by Detecting Changes in Intercostal Muscles Oxygenation by Using Near-Infrared Spectroscopy Open
This study aimed to evaluate if the changes in oxygen saturation levels at intercostal muscles (SmO2-m.intercostales) assessed by near-infrared spectroscopy (NIRS) using a wearable device could determine the respiratory compensation point …
View article: Saxitoxin Group Toxins Accumulation Induces Antioxidant Responses in Tissues of Mytilus chilensis, Ameghinomya antiqua, and Concholepas concholepas during a Bloom of Alexandrium pacificum
Saxitoxin Group Toxins Accumulation Induces Antioxidant Responses in Tissues of Mytilus chilensis, Ameghinomya antiqua, and Concholepas concholepas during a Bloom of Alexandrium pacificum Open
Saxitoxin (STX) group toxins consist of a set of analogues which are produced by harmful algal blooms (HABs). During a HAB, filter-feeding marine organisms accumulate the dinoflagellates and concentrate the toxins in the tissues. In this s…
View article: Sex-Differences in the Oxygenation Levels of Intercostal and Vastus Lateralis Muscles During Incremental Exercise
Sex-Differences in the Oxygenation Levels of Intercostal and Vastus Lateralis Muscles During Incremental Exercise Open
This study aimed to examine sex differences in oxygen saturation in respiratory (SmO 2 - m.intercostales ) and locomotor muscles (SmO 2 - m.vastus lateralis ) while performing physical exercise. Twenty-five (12 women) healthy and physicall…
View article: Intercostal Muscles Oxygenation and Breathing Pattern during Exercise in Competitive Marathon Runners
Intercostal Muscles Oxygenation and Breathing Pattern during Exercise in Competitive Marathon Runners Open
The study aimed to evaluate the association between the changes in ventilatory variables (tidal volume (Vt), respiratory rate (RR) and lung ventilation (V.E)) and deoxygenation of m.intescostales (∆SmO2-m.intercostales) during a maximal in…
View article: Intercostal Muscles Oxygenation and Breathing Pattern during Exercise in Competitive Marathon Runners
Intercostal Muscles Oxygenation and Breathing Pattern during Exercise in Competitive Marathon Runners Open
The study aimed to evaluate the association between the changes in ventilatory variables (tidal volume (Vt), respiratory rate (RR), and lung ventilation (VE)) and deoxygenation of m.intescostales (∆SmO2-m.intercostales) during a maximal in…
View article: Pulmonary Effects Due to Physical Exercise in Polluted Air: Evidence from Studies Conducted on Healthy Humans
Pulmonary Effects Due to Physical Exercise in Polluted Air: Evidence from Studies Conducted on Healthy Humans Open
Physical inactivity has caused serious effects on the health of the population, having an impact on the quality of life and the cost of healthcare for many countries. This has motivated government and private institutions to promote regula…
View article: Hip and thigh muscular activity in professional soccer players during an isometric squat with and without controlled hip contraction (Actividad muscular de cadera y muslo en jugadores de fútbol profesionales durante una sentadilla isométrica con y sin co
Hip and thigh muscular activity in professional soccer players during an isometric squat with and without controlled hip contraction (Actividad muscular de cadera y muslo en jugadores de fútbol profesionales durante una sentadilla isométrica con y sin co Open
The purpose of the present investigation was twofold 1) To compare the hip and thigh muscular activity of professional soccer players when performing the isometric squat with and without controlled hip contraction; 2) To determine the musc…
View article: NADAR 2,5-KM INDOOR DISMINUYE EL NITRITO Y pH EN AIRE ESPIRADO CONDENSADO
NADAR 2,5-KM INDOOR DISMINUYE EL NITRITO Y pH EN AIRE ESPIRADO CONDENSADO Open
OBJETIVO: determinar el efecto de una prueba aeróbica de natación en piscina clorada indoor sobre la concentración de NO2-, H2O2 y el pH en el condensado del aire espirado. MÉTODO: diez nadadores aficionados nadaron 2,5 km en piscina clora…
View article: Evaluación de movimientos no controlados del segmento lumbopélvico en individuos sin dolor lumbar
Evaluación de movimientos no controlados del segmento lumbopélvico en individuos sin dolor lumbar Open
Low back pain (LBP) is one of the most common disorders of the human body. About 85% of the population will experience LBP during their lifetime. In most cases, LBP is shown as a functional impairment that fails to show up in imaging tests…
View article: Muscle activity of the Lumbo-pelvic-hip complex in three isometric exercises using TRX ® rip trainer™ (Actividad muscular del complejo Lumbo-Pelvis-Cadera en tres ejercicios isométricos usando TRX® rip trainer™)
Muscle activity of the Lumbo-pelvic-hip complex in three isometric exercises using TRX ® rip trainer™ (Actividad muscular del complejo Lumbo-Pelvis-Cadera en tres ejercicios isométricos usando TRX® rip trainer™) Open
One of the tools currently used for strengthening the lumbo-pelvic-hip complex (LPHC) is the TRX ® Rip Trainer™. This device produces asymmetric destabilizing forces by means of an elastic resistance (ER) cord. This study aimed to compare …
View article: Centro de presión y patrones de actividad muscular durante la ejecución de una sentadilla monopodal isométrica realizada sobre una superficie esponjosa en mujeres jóvenes sanas
Centro de presión y patrones de actividad muscular durante la ejecución de una sentadilla monopodal isométrica realizada sobre una superficie esponjosa en mujeres jóvenes sanas Open
Objetivo: Comparar la ejecución del ejercicio de sentadilla monopodal isométrica, en una superficie rígida versus una superficie esponjosa, en relación al centro de presión y los patrones de activación de la musculatura de la extremidad in…
View article: Swimming versus running: effects on exhaled breath condensate pro-oxidants and pH
Swimming versus running: effects on exhaled breath condensate pro-oxidants and pH Open
View article: Melatonin Relations With Respiratory Quotient Weaken on Acute Exposure to High Altitude
Melatonin Relations With Respiratory Quotient Weaken on Acute Exposure to High Altitude Open
High altitude (HA) exposure may affect human health and performance by involving the body timing system. Daily variations of melatonin may disrupt by HA exposure, thereby possibly affecting its relations with a metabolic parameter like the…
View article: Relationship between lower limb anthropometry and temporo-spatial parameters in gait of young adults (Relación entre la antropometría de miembro inferior y los parámetros temporo-espaciales en la marcha de adultos jóvenes)
Relationship between lower limb anthropometry and temporo-spatial parameters in gait of young adults (Relación entre la antropometría de miembro inferior y los parámetros temporo-espaciales en la marcha de adultos jóvenes) Open
Temporo-spatial parameters (TSP) are commonly used to characterize human gait. These help to differentiate population groups in different conditions of gait, but can be influenced by lower limb anthropometry. Different strategies are assum…
View article: Update on the Mechanisms of Pulmonary Inflammation and Oxidative Imbalance Induced by Exercise
Update on the Mechanisms of Pulmonary Inflammation and Oxidative Imbalance Induced by Exercise Open
The mechanisms involved in the generation of oxidative damage and lung inflammation induced by physical exercise are described. Changes in lung function induced by exercise involve cooling of the airways, fluid evaporation of the epithelia…
View article: Effects of Exercise Training under Hyperbaric Oxygen on Oxidative Stress Markers and Endurance Performance in Young Soccer Players: A Pilot Study
Effects of Exercise Training under Hyperbaric Oxygen on Oxidative Stress Markers and Endurance Performance in Young Soccer Players: A Pilot Study Open
The aim of the present study was to determine the effects of three weeks of hyperbaric oxygen (HBO 2 ) training on oxidative stress markers and endurance performance in young soccer players. Participants ( years) were randomized into hyper…
View article: Saxitoxins and okadaic acid group: accumulation and distribution in invertebrate marine vectors from Southern Chile
Saxitoxins and okadaic acid group: accumulation and distribution in invertebrate marine vectors from Southern Chile Open
Harmful algae blooms (HABs) are the main source of marine toxins in the aquatic environment surrounding the austral fjords in Chile. Huichas Island (Aysén) has an history of HABs spanning more than 30 years, but there is limited investigat…