Publications by authors named "Ana Rosa BeltrAn"
Background: Cardiorespiratory fitness (CRF) is inversely associated with metabolic diseases and adiposity markers.
Aim: To assess the association of CRF with body mass index (BMI), waist circumference (WC) and obesity in a representative sample of the Chilean population.
Material And Methods: Data from 5,958 participants in the Chilean National Health Survey 2016-1027 aged 15 years or above were analyzed.
Article Synopsis
- The study analyzes physical activity (PA) and sedentary behavior in Chile, focusing on how these factors relate to different income levels.
- It uses data from the 2016-2017 Chilean National Health Survey, involving over 5,000 participants, to assess PA and sedentary time through self-reported income.
- Findings show that while low-income individuals engage more in transport-related PA, they also experience higher rates of inactivity during leisure and work compared to those with higher incomes.
Baroreflex (BR) control is critically dependent of sympathetic and parasympathetic modulation. It has been documented that during acute hypobaric hypoxia there is a BR control impairment, however, the effect of a natural hypoxic environment on BR function is limited and controversial. Therefore, the aim of this study was to determine the effect of acute High-Altitude exposure on sympathetic/parasympathetic modulation of BR control in normal rats.
View Article and Find Full Text PDFBackground: A higher educational level is associated with healthier lifestyles.
Aim: To assess the association between the level of compliance with physical activity recommendations and years of formal education in Chilean adults.
Material And Methods: Analysis include 6,174 participants from the National Health Survey 2016-2017.
Plyometric training performed at sea level enhance explosive and endurance performance at sea level. However, its effects on explosive and endurance performance at high altitude had not been studied. Therefore, the aim of this study was to determine the effects of a sea level short-term (i.
View Article and Find Full Text PDFAndrade, DC, Manzo, O, Beltrán, AR, Álvarez, C, Del Rio, R, Toledo, C, Moran, J, and Ramirez-Campillo, R. Kinematic and neuromuscular measures of intensity during plyometric jumps. J Strength Cond Res 34(12): 3395-3402, 2020-The aim of this study was to assess jumping performance and neuromuscular activity in lower limb muscles after drop jumps (DJs) from different drop heights (intensity) and during continuous jumping (fatigue), using markers such as reactive strength, jump height, mechanical power and surface electromyography (sEMG).
View Article and Find Full Text PDFThe isoforms of the Na+/H+ exchanger present in T84 human colon cells were identified by functional and molecular methods. Cell pH was measured by fluorescence microscopy using the probe BCECF. Based on the pH recovery after an ammonium pulse and determination of buffering capacity of these cells, the rate of H+ extrusion (JH) was 3.
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