ABSTRACT
RESUMEN Introducción: las manifestaciones clínicas del SARS CoV-2 se caracterizan por varios síntomas como fiebre, tos, disnea, mialgia, fatiga, diarrea y trastorno del olfato/gusto, como también existen casos asintomáticos. Objetivos: determinar las características clínicas: datos demográficos, síntomas mas frecuentes, comorbilidades y evolución, de los primeros 60 pacientes con SARS CoV-2 internados en el Hospital Nacional (Itauguá, Paraguay) en el periodo junio-agosto, 2020. Metodología: estudio observacional descriptivo prospectivo, no probabilístico de casos consecutivos. Se incluyó a pacientes varones y mujeres, mayores de 18 años de edad, portadores de SARS CoV-2, internados en el Hospital Nacional en el periodo junio-agosto, 2020. Se midieron variables clínicas y sociodemográficas. Se respetaron los aspectos éticos. Resultados: se incluyeron 60 pacientes con edad media 44±16 años y siendo 52% del sexo masculino, en su mayoría procedentes del Departamento Central. Entre los síntomas predominó la disnea (27%). La comorbilidad más frecuente fue la obesidad (40%). La mortalidad de los pacientes internados fue 5%. Conclusión: en la muestra predominaron los adultos jóvenes y del sexo masculino (52%). El síntoma más frecuente fue la disnea (27%) y la comorbilidad prevaleciente fue la obesidad (40%). La mortalidad fue 5%.
ABSTRACT Introduction: The clinical manifestations of SARS CoV-2 are characterized by several symptoms such as fever, cough, dyspnea, myalgia, fatigue, diarrhea and smell / taste disorders, as well as asymptomatic cases. Objectives: To determine the clinical characteristics of the first 60 patients with SARS CoV-2 admitted to the National Hospital (Itauguá, Paraguay) in the period June-August, 2020. Methodology: Prospective, non-probabilistic, descriptive observational study of consecutive cases. Male and female patients, over 18 years of age, carriers of SARS CoV-2, admitted to the National Hospital in the period June-August, 2020 were included. Clinical and sociodemographic variables were measured. Ethical aspects were respected. Results: Sixty patients with a mean age of 44 ± 16 years were included and 52% of them were male, mostly from the Central Department. Among the symptoms, dyspnea (27%) predominated. The most frequent comorbidity was obesity (40%). Mortality in hospitalized patients was 5%. Conclusion: In this sample young adults and males (52%) predominated. The most frequent symptom was dyspnea (27%), the prevailing comorbidity was obesity (40%) and mortality was 5%.
ABSTRACT
The purpose of this study was to investigate whether indices of cardiorespiratory fitness are related to quality of life (QOL) in women survivors of breast cancer. Using the European Organization for Research and Treatment of Cancer QLQ-30 questionnaire, we assessed the QOL of 16 participants (age, 50 +/- 9 years; body mass, 66.6 +/- 9.6 kg). All participants performed incremental cycle ergometer exercise to determine several indices of cardiorespiratory fitness (e.g., peak oxygen uptake [.V(O2)peak, in L.min(-1), ml.kg(-1).min(-1)]), peak power output (PPO, in W), PPO/ body mass (W.kg(-1), peak heart rate (HRpeak, b.min(-1), peak ventilation (VEpeak), and .V(O2) and heart rate (HR) at the ventilatory (VT) and respiratory compensation (RCT) thresholds. Relationships between QOL and variables were assessed using Spearman rank-difference correlation tests. A significant inverse relationship (p < 0.05) was found for QOL scores and values for age (years) and body mass (kg) ( = -0.53), %HRpeak@VT ( = -0.59) and %VEpeak@VT ( = -0.61). A significant positive relationship (p < 0.05) was found for QOL and PPO/body mass ( = 0.59) and HRpeak ( = 0.78), .V(O2)@RCT (ml.kg(-1.min(-1) ( = 0.51), power output (PO, expressed as either W or W.kg(-1) at RCT, and HR at RCT ( = 0.54). No other significant relationship was found between QOL and variables obtained from the tests. In conclusion, these findings highlight possible relationships between cardiorespiratory fitness and well-being in survivors of breast cancer. From a practical point of view, our data emphasize the need for this population to engage in programmed cardiorespiratory exercise training, mainly designed to improve VT and RCT. The improvement of both submaximal indices can have a beneficial effect on QOL.
Subject(s)
Breast Neoplasms/physiopathology , Cardiovascular Physiological Phenomena , Physical Fitness/physiology , Quality of Life , Respiratory Physiological Phenomena , Survivors , Age Factors , Body Mass Index , Ergometry , Female , Heart Rate/physiology , Humans , Middle Aged , Oxygen Consumption/physiology , Pulmonary Ventilation/physiology , Surveys and QuestionnairesABSTRACT
The purpose of this study was to determine the effects of short-term (7 days) oral creatine supplementation (0.3 g.kg(-1)) in elderly women during exercise tests that reflect functional capacity during daily living tasks. We assessed several indices of endurance capacity (1-mile walk test, gross mechanical efficiency, ventilatory threshold, and peak oxygen intake determined during cycle-ergometry) and lower-extremity functional performance (time to complete sit-stand test). Subjects were assigned to a creatine (n = 10; age 67 +/- 6 years) or placebo (n = 6; age 68 +/- 4 years) group. We found a significant improvement only after creatine loading in the sit-stand test (placebo: 9.7 +/- 0.9 seconds for pretest and 9.3 +/- 0.7 seconds for posttest, p > 0.05; creatine: 10.0 +/- 0.7 seconds for pretest and 8.8 +/- 1.1 seconds for posttest). Significance was recorded at p < 0.05 for the interaction effect (group [creatine, placebo] x time [pretest, posttest]). In elderly women, short-term oral creatine supplementation does not improve endurance capacity but increases the ability to perform lower-body functional living tasks involving rapid movements.
Subject(s)
Activities of Daily Living , Creatine/therapeutic use , Dietary Supplements , Exercise Test , Administration, Oral , Aged , Aged, 80 and over , Female , Humans , Lower Extremity/physiology , Middle Aged , Oxygen Consumption/physiology , Physical Endurance/physiology , Single-Blind MethodABSTRACT
PURPOSE: To determine the effects of changes in pedaling frequency on the gross efficiency (GE) and other physiological variables (oxygen uptake (VO2), HR, lactate, pH, ventilation, motor unit recruitment estimated by EMG) of professional cyclists while generating high power outputs (PO). METHODS: Following a counterbalanced, cross-over design, eight professional cyclists (age (mean +/- SD): 26 +/- 2 yr, VO2max: 74.0 +/- 5.7 mL x kg x min) performed three 6-min bouts at a fixed PO (mean of 366 +/- 37 W) and at a cadence of 60, 80, and 100 rpm. RESULTS: Values of GE averaged 22.4 +/- 1.7, 23.6 +/- 1.8 and 24.2 +/- 2.0% at 60, 80, and 100 rpm, respectively. Mean GE at 100 rpm was significantly higher than at 60 rpm (P < 0.05). Similarly, mean values of VO2, HR, rates of perceived exertion (RPE), lactate and normalized root-mean square EMG (rms-EMG) in both vastus lateralis and gluteus maximum muscles decreased at increasing cadences. CONCLUSIONS: In professional road cyclists riding at high PO, GE/economy improves at increasing pedaling cadences.
