In Sickness and in Health: The Oxygen Reactive Species and the Bone.

Oxidative stress plays a central role in physiological and pathological bone conditions. Its role in signalment and control of bone cell population differentiation, activity, and fate is increasingly recognized. The possibilities of its use and manipulation with therapeutic goals are virtually unending.

Performance Prediction Equation for 2000 m Youth Indoor Rowing Using a 100 m Maximal Test.

Background: The exhaustive series of tests undergone by young athletes of Olympic rowing prior to important competitions imply loads of physical stress that can ultimately impact on mood and motivation, with negative consequences for their training and performance. Thus, it is necessary to develop a tool that uses only the performance of short distances but is highly predictive, offering a time expectancy with high reliability. Such a test must use variables that are easy to collect with high practical applicability in the daily routine of coaches.

On the development of a regional climate change adaptation plan: Integrating model-assisted projections and stakeholders' perceptions.

Climate change is expected to have strong social-ecological implications, with global but especially regional and local challenges. To assess the climatic vulnerability of a given territory, it is necessary to evaluate its exposure to climate change and its adaptive capacity. This study describes the development of an Action Plan for Adapting to Climate Change in the Tâmega and Sousa Region, a mountainous inter-municipal community in the North of Portugal.

An international study on psychological coping during COVID-19: Towards a meaning-centered coping style.

Background/objective: This study examined the role of different psychological coping mechanisms in mental and physical health during the initial phases of the COVID-19 crisis with an emphasis on meaning-centered coping.

Method: A total of 11,227 people from 30 countries across all continents participated in the study and completed measures of psychological distress (depression, stress, and anxiety), loneliness, well-being, and physical health, together with measures of problem-focused and emotion-focused coping, and a measure called the Meaning-centered Coping Scale (MCCS) that was developed in the present study. Validation analyses of the MCCS were performed in all countries, and data were assessed by multilevel modeling (MLM).

Effect of Feldspar Substitution by Basalt on Pyroplastic Behaviour of Porcelain Tile Composition.

This work aims to evaluate the effects of feldspar substitution by basalt on porcelain tile composition with respect to its porosity, flexural strength, and pyroplastic deformation. Three ceramic formulations with different amounts of feldspar substituted with basalt, 50% (C1), 75% (C2), and 100% (C3), were evaluated at three different temperatures, 1200, 1220, and 1240 °C. Specifically, the effect of replacing feldspar with basalt on the pyroplastic deformation of ceramic bodies was analysed using optical fleximetry.

Occupational Health: Does Compliance with Physical Activity Recommendations Have a Preventive Effect on Musculoskeletal Symptoms in Computer Workers? A Cross-Sectional Study.

A lack of physical activity in computer workers (CW) can contribute to the development of musculoskeletal symptoms (MSS). (i) Evaluate MSS over a 12 month and 7 days period, (ii) determine physical activity (PA) levels and compliance with World Health Organization (WHO) PA recommendations, and (iii) assess the relationship between compliance with WHO PA recommendations and MSS. A cross-sectional observational study comprising 119 computer workers.

Dealing With the Pandemic of COVID-19 in Portugal: On the Important Role of Positivity, Experiential Avoidance, and Coping Strategies.

The global COVID-19 pandemic crisis has caused an unprecedented impact on most areas of people's lives. Thus, framed within the scope of Existential Positive Psychology (PP2.0), this study aimed at assessing the psychological distress of adults living in Portugal during the first national lockdown, how they are coping with stress, as well to contribute to a deeper understanding about the role that positivity, experiential avoidance, and coping strategies have in psychological distress and well-being.

Hemotropic and Species Diversity in Free-Roaming Canine and Feline from Luanda, Angola.

Free-roaming dogs and cats represent potential reservoirs for zoonotic vector-borne pathogens shedding to the human population. Given the health impact of these pathogens, we searched free-roaming dogs and cats included in an animal population control program from Luanda, Angola, for and hemotropic mycoplasma infection. We report the detection of (2/66; 3%), Mycoplasma haemominutum (5/66; 7.

Association between Training Load and Well-Being Measures in Young Soccer Players during a Season.

This study aimed to analyze the correlations among weekly (w) acute workload (wAW), chronic workload (wCW), acute/chronic workload ratio (wACWR), training monotony (wTM), training strain (wTS), sleep quality (wSleep), delayed onset muscle soreness (wDOMS), fatigue (wFatigue), stress (wStress), and Hooper index (wHI) in pre-, early, mid-, and end-of-season. Twenty-one elite soccer players (age: 16.1 ± 0.

Functional Training in Portuguese Firefighters: Impact of Functional Training With or Without Personal Protective Equipment.

Objective: To investigate the influence of specific functional training (FT) with and without personal protective equipment (PPE) and self-contained breathing apparatus (SCBA), on firefighters (FFs) physical fitness condition.

Methods: Sixty FFs run a 24 weeks intervention, divided into three groups (EG1 training with PPE+SCBA; EG2 training with regular equipment, and Control Group). FFs anthropometric and physical fitness (PF) were assessed pre- and post-intervention.

Corrigendum: Examining Portuguese High School Students' Attitudes Toward Physical Education.

[This corrects the article DOI: 10.3389/fpsyg.2020.

Biometric Characterization of the Portuguese Autochthonous Hens Breeds.

Promotion of the conservation and preservation of local breed's biodiversity combined with the concept of sustainable agriculture and development of economically marginal areas are important policies to implement in modern society. The biometric characterization, contributing to maintain phenotypic traits, is a significant tool in breeding programs, which revaluate local breeds, allow the preservation of animal biodiversity and support consumer demands. This paper approaches the biometric characterization of the Portuguese poultry breeds through the study of sexual dimorphism and breed differentiation using six zoometric measures as differentiation criteria.

Injury prevention of hamstring injuries through exercise interventions.

Introduction: Hamstring injuries are the most prevalent time-loss injuries in sport, mainly in those modalities characterized by high-intensity and short-term actions, especially accelerations and decelerations during high-speed running. Expanding the knowledge about this type of injury and its preventive programs could be a key strategy to reduce the hamstring injury incidence. Thus, this review aimed to study the effectiveness of different preventive programs based on exercise interventions on reducing the hamstring injury incidence in athletes.

COVID-19-Related Fear and Anxiety: Spiritual-Religious Coping in Healthcare Workers in Portugal.

The COVID-19 pandemic has negatively affected the mental health of the general population, and for healthcare workers (HCWs) it has been no different. Religiosity and spirituality are known coping strategies for mental illnesses, especially in stressful times. This study aimed to describe the role of spiritual-religious coping regarding fear and anxiety in relation to COVID-19 in HCWs in Portugal.

Exploring the Impact of a TPSR Program on Transference of Responsibility Goals within a Preschool Setting: An Action Research Study.

The teaching personal and social responsibility (TPSR) model has been extensively used in a vast array of settings. However, few TPSR studies have focused on preschool settings. The purpose of this action research study was to analyze the experiences of a program leader, her preschool children, and their parents throughout a TPSR program focused on transference of responsibility model goals.

The effect of two types of combined training on bio-motor ability adaptations in sedentary females.

Background: The purpose of this study was to compare the effects of combined training of high-volume/low intensity vs. low volume/high intensity on different bio-motor adaptations in sedentary women.

Methods: Thirty sedentary healthy females (mean age, 22.

Examining Portuguese High School Students' Attitudes Toward Physical Education.

Portugal ranks fourth among countries with the highest rate of overweight population, considering that 67.6% of the Portuguese population over the age of 15 is overweight or obese. To our knowledge, limited studies have investigated students' attitudes toward physical education in Portugal.

Nociceptive, emotional, electrophysiological, and histological characterization of the chronic constriction injury model in female Wistar Han rats.

Chronic neuropathic pain affects 7-10 % of the population and is often accompanied by comorbid emotional disorders, which greatly reduce the quality of life of the patients, impairing physical, cognitive, emotional, and social functioning. Despite the higher prevalence and severity of chronic pain in women, the number of publications using female animals remains scarce. While in the chronic constriction injury (CCI) model the development of mechanical/thermal hyperalgesia, allodynia and spontaneous pain has been shown in both sexes, little is known on CCI-induced emotional impairments and sciatic nerve histopathology in female rats, as well as on the contributions of ovarian hormones to peripheral nerve injury.

Running-related injuries in Portuguese trail runners: a retrospective cohort study.

Background: The purpose of this study was to characterize trail running injuries within a cohort of Portuguese male and female recreational trail running athletes.

Methods: The study was retrospective (12 months), with data collected through an online survey. A total of 719 athletes participated (529 male and 190 female, average age: 38.

Epidemiological survey on intestinal helminths of stray dogs in Guimarães, Portugal.

The new legislative framework on Animal Welfare brought increased responsibilities to municipal shelters, in particular in the collection of stray dogs, their sterilization and future adoption. These centers quickly became overcrowded, leading to high parasitism environmental contamination, to the easy spread of parasitic infections and to increased risks to public health. The prevalence of intestinal parasites was evaluated by examination of dog faecal sample, in the municipal control animal centre of Guimarães (north Portugal), identifying risk factors and transmission to man.

Effective production of multifunctional magnetic-sensitive biomaterial by an extrusion-based additive manufacturing technique.

A calcium phosphate (CaP)-based scaffold used as synthetic bone grafts, which smartly combines precise dimensions, controlled porosity and therapeutic functions, presents benefits beyond those offered by conventional practices, although its fabrication is still a challenge. The sintering step normally required to improve the strength of the ceramic scaffolds precludes the addition of any biomolecules or functional particles before this stage. This study presents a proof of concept of multifunctional CaP-based scaffolds, fabricated by additive manufacturing from an innovative ink composition, with potential for bone regeneration, cancer treatment by local magnetic hyperthermia and drug delivery platforms.

Loadings, chemical patterns and risks of inhalable road dust particles in an Atlantic city in the north of Portugal.

Road dust resuspension has a significant contribution to the atmospheric particulate matter levels in urban areas, but loadings, emission factors, and chemical source profiles vary geographically, hampering the accuracy of emission inventories and source contribution estimates. Given the dearth of studies on the variability of road dust, in the present study, an in-situ resuspension chamber was used to collect PM samples from seven representative streets in Viana do Castelo, the northernmost coastal city in Portugal. PM samples were analysed for organic and elemental carbon by a thermo-optical technique, elemental composition by ICP-MS and ICP-AES, and organic constituents by GC-MS.

Fresh-Cut Bell Peppers in Modified Atmosphere Packaging: Improving Shelf Life to Answer Food Security Concerns.

The influence of modified atmosphere packaging (MAP, 10% O and 45% CO) on the quality characteristics of fresh-cut green, red and yellow bell peppers ( L. var ) was investigated. Packaging film bags (Krehalon MLF40-PA/PE) with fresh-cut bell peppers were stored for up to 17 days at 5 °C.

Transformation of Metallic Ti to TiH Phase in the Ti/MgH Composite and Its Influence on the Hydrogen Storage Behavior of MgH.

The current work explores the in-situ formation of TiH additive in a Ti/MgH nanocomposite system. Mild mechanical milling leaves Ti chemically unchanged, while formation of stable TiH occurs upon strong mechanical milling. TiH further transforms to TiH upon recycling the powder (dehydrogenation and subsequent hydrogenation) and lowers the activation energy of MgH to 89.