Association between leisure-time physical activity and musculoskeletal pain before and during the COVID-19 pandemic in working adults.

Background: The COVID-19 pandemic had major impacts on the physical lives of individuals, especially on home office workers. In this way, the practice of physical activity has been identified as an ally in the reduction and prevention of musculoskeletal pain.

Objective: To investigate the association between leisure-time physical activity and musculoskeletal pain in adult workers before and during the COVID-19 pandemic.

The effect of nutritional and oxidative stress on the metabolome of Trypanosoma cruzi.

Trypanosoma cruzi, a flagellated protozoan, is the causative agent of Chagas disease. The parasite has developed various mechanisms to get through its intricate life cycle and adapt to different evolutionary phases. T.

Evaluation of internal markers in digestibility estimation for sheep and goats.

The objective of this study was to compare the indirect methods of obtaining digestibility with the direct method of total fecal collection to estimate the apparent digestibility of nutrients in sheep and goats supplemented with non-protein nitrogen. Five goats and five sheep with no defined racial pattern were used, distributed in two 5 × 5 Latin squares, with split plots, considering the diets as plots and the apparent digestibility determination methodologies as subplots. The diets were composed of buffelgrass hay and the addition, via ruminal infusion, of increasing amounts of nitrogen supplementation in order to gradually raise the CP level of the basal diet in intervals of 2% points, that is, + 2, +4, + 6 and + 8%.

Molecular Multi-Target Approach for Human Acetylcholinesterase, Butyrylcholinesterase and -Secretase 1: Next Generation for Alzheimer's Disease Treatment.

Alzheimer's Disease (AD) is a neurodegenerative condition characterized by progressive memory loss and other affected cognitive functions. Pharmacological therapy of AD relies on inhibitors of the enzymes acetylcholinesterase (AChE) and butyrylcholinesterase (BChE), offering only a palliative effect and being incapable of stopping or reversing the neurodegenerative process. However, recent studies have shown that inhibiting the enzyme β-secretase 1 (BACE-1) may be able to stop neurodegeneration, making it a promising target.

Is There a Dose-Response Relationship between High-Intensity Interval Exercise (HIIE) Intensity and Affective Valence? Analysis of Three HIIE Sessions Performed with Different Amplitudes.

The inverse relationship between exercise intensity and affective valence is well established for continuous exercise but not for high-intensity interval exercise (HIIE). The objective was to verify the dose-response relationship between exercise intensity and affective valence in HIIE sessions. Eleven young men underwent a vigorous-intensity continuous exercise (VICE) and three HIIE sessions at the same average intensity (70% of peak power-W) and duration (20 min) but with different amplitudes: 10 × [1 min at 90% W/1 min at 50% W]-HIIE-90/50; 10 × [1 min at 100% W/1 min at 40% W]-HIIE-100/40; 10 × [1 min at 110% W/1 min at 30% W]-HIIE-110/30.

Text-Driven Video Acceleration: A Weakly-Supervised Reinforcement Learning Method.

The growth of videos in our digital age and the users' limited time raise the demand for processing untrimmed videos to produce shorter versions conveying the same information. Despite the remarkable progress that summarization methods have made, most of them can only select a few frames or skims, creating visual gaps and breaking the video context. This paper presents a novel weakly-supervised methodology based on a reinforcement learning formulation to accelerate instructional videos using text.

Restarting Elective Bariatric and Metabolic Surgery Under a Security Protocol During the COVID-19 Pandemic-a Prospective Observational Cohort Study.

Background: During the SARS-CoV-2 pandemic, in order to protect the patient and to save hospital beds, cancelation of elective surgeries has become a great challenge. Considering that obesity is a chronic disease and the possible effect imposed by quarantine on weight gain with worsening rates of obesity and metabolic comorbidities, the creation of a protocol for a safe return to bariatric surgery became essential.

Objective: The aim of this study was to identify the incidence of new-onset severe acute respiratory syndrome coronavirus (SARS-CoV-2) symptoms in patients who underwent bariatric procedures during the declining curve period.

Micro-level transmission of monetary policy shocks: The trading book channel.

We open the black box of the monetary policy transmission mechanism with a granular model that considers the balance-sheet composition and network relationships of each economic agent. Though there are several well-documented channels through which monetary policy operates, we focus on the overlooked trading book channel, which arises because of adjustments in the accounting value of trading book exposures on banks' balance sheets that have to be marked to market when interest rates change. Variations in banks' net worth due these adjustments are used as input to a network model that incorporates the financial and corporate sectors.

A Sparse Sampling-Based Framework for Semantic Fast-Forward of First-Person Videos.

Technological advances in sensors have paved the way for digital cameras to become increasingly ubiquitous, which, in turn, led to the popularity of the self-recording culture. As a result, the amount of visual data on the Internet is moving in the opposite direction of the available time and patience of the users. Thus, most of the uploaded videos are doomed to be forgotten and unwatched stashed away in some computer folder or website.

Mechanical evaluation of elastic tubes used in physical therapy.

Purpose: To quantify the force of elastic tubes at different elongation patterns used in exercises.

Methods: A tensile test of elastic tubes which had seven levels of resistance identified by colors was performed. All samples (n = 105; 15 samples for each color) were 7 cm of length and had two interfaces for fixation.

Elastic resistance training to increase muscle strength in elderly: a systematic review with meta-analysis.

Analyze the efficiency of training programs with progressive elastic resistance on muscle strength in elderly 'healthy' and 'not healthy'. It was performed a systematic review in relevant databases to identify controlled clinical trials with outcomes from parameters of muscle strength. Two independent reviewers decided about the inclusion criteria, data extraction and evaluation of methodological quality of the articles.

Etiology of anemia of blood donor candidates deferred by hematologic screening.

Objective: Iron deficiency is the most common cause of anemia and one of the main factors in the clinical deferral of blood donors. This fact prompted the current study that aimed to determine the prevalence and etiology of anemia in blood donor candidates and to evaluate the hematological screening technique used for the exclusion of these donors.

Methods: This was a prospective study that compared two groups (Anemic and Non-anemic).

Catheter-induced urethral trauma in cats with urethral obstruction.

Fifteen cats were evaluated with urethral obstruction. Penile trauma by catheterization was the major indication for perineal urethrostomy. Ten cats had developed a urethral stricture and five had rupture of the urethra following medical management.

[Population parameters for Triatoma sordida Stal, 1859: the most frequent vector for Chagas disease in the Triângulo Mineiro (Heteroptera, Triatominae)].

Triatoma sordida is the most frequent vector for Trypanosoma cruzi, Chagas, 1909, in Uberaba, State of Minas Gerais. The objective of this study was to construct a dynamic life table for Triatoma sordida with the aim of supplying support data for controlling its populations.