49 research outputs found
Assessment of Cardiorespiratory Fitness without Exercise in Elderly Men with Chronic Cardiovascular and Metabolic Diseases
Low cardiorespiratory
(CRF) is associated with health problems in elderly people, especially cardiovascular and metabolic disease. However, physical limitations in this population frequently preclude the application of aerobic tests. We developed a model to estimate CRF without aerobic testing in older men with chronic cardiovascular and metabolic diseases. Subjects aged from 60 to 91 years were randomly assigned into validation (n = 67) and cross-validation (n = 29) groups. A hierarchical linear regression model included age, self-reported fitness, and handgrip strength normalized to body weight (R2 = 0.79; SEEâ=â1.1 METs). The PRESS (predicted residual sum of squares) statistics revealed minimal shrinkage in relation to the original model and that predicted by the model and actual CRF correlated well in the cross-validation group (r = 0.85). The area under curve (AUC) values suggested a good accuracy of the model to detect disability in the validation (0.876, 95% CI: 0.793â0.959) and cross-validation groups (0.826, 95% CI: 0.677â0.975). Our findings suggest that CRF can be reliably estimated without exercise test in unhealthy elderly men
Effects on volume load and ratings of perceived exertion in individuals advanced weight-training after transcranial direct current stimulation
Lattari, E, Rosa Filho, BJ, Fonseca Junior, SJ, Murillo-Rodriguez, E, Rocha, N, Machado, S, and MaranhĂŁo Neto, GA. Effects on volume load and ratings of perceived exertion in individuals' advanced weight training after transcranial direct current stimulation. J Strength Cond Res 34(1): 89â96, 2020âThe aim of this study was investigate the effects of transcranial direct current stimulation (tDCS) on volume load and ratings of perceived exertion. Fifteen young healthy individuals, aged between 20 and 30 years in advanced strength training were recruited. Test and retest of the 10 maximum repetitions (10RM) were performed to determine the reliability of load used. Subjects performed 3 experimental conditions in a randomized, double-blinded crossover design: anodic stimulation (a-tDCS), cathodic stimulation (c-tDCS), and sham (2 mA for 20 minutes targeting the dorsolateral prefrontal cortex left). Immediately after the experimental conditions, subjects completed 1 set of maximum repetitions with 10RM load (volume load) and answered to OMNI-RES (poststimulation) (level of significance p †0.05). The volume load showed main effect for condition (F(2, 28) = 164.801; p < 0.001). In poststimulation, a-tDCS was greater than c-tDCS (p †0.001) and sham (p †0.001). For ratings of perceived exertion (OMNI-RES), the results showed main effect for condition (F(2, 28) = 9.768; p †0.05). In poststimulation, c-tDCS was greater than a-tDCS (p †0.05) and sham (p †0.05). We conclude that the use of a-tDCS may promote increase in volume load for the LP45 exercise. Moreover, higher volume loads are necessary to maximize muscle strength and anabolism.info:eu-repo/semantics/publishedVersio
INSATISFAĂĂO COM A IMAGEM CORPORAL ENTRE PESSOAS DE MEIA - IDADE E IDOSAS PRATICANTES DE ATIVIDADE FĂSICA
O objetivo deste estudo foi verificar a prevalĂȘncia de insatisfação com a imagem corporal em dois grupos de idosas praticantes de atividade fĂsica. Participaram do estudo 12 integrantes de um grupo de ginĂĄstica para a terceira idade e 16 integrantes da UNATI de uma universidade privada. Utilizou-se um questionĂĄrio que continha o Body Shape Questionnaire, a Escala de Silhuetas e perguntas sobre algumas outras caracterĂsticas. A prevalĂȘncia de insatisfação com a imagem corporal foi de 25,0%, houve significĂąncia estatĂstica (p < 0,05) entre a insatisfação corporal com as variĂĄveis: nĂvel educacional, IMCs âatualâ e âdesejadoâ, uso de cigarro e silhueta atual. AlĂ©m disso, a amostra apresentou, em conjunto, o desejo de reduzir o peso corporal, elevar a estatura e consequentemente reduzir o IMC. Aquelas consideradas mais magras nĂŁo desejavam diminuir o peso, todavia daquelas que se consideravam ânormaisâ, metade gostaria de modificar o corpo. Conclui-se que parece haver uma maior insatisfação corporal naquelas mais escolarizadas e o desejo de modificar a forma fĂsica pode estar associado Ă predominĂąncia de um modelo biomĂ©dico hegemĂŽnico que tende a estigmatizar o corpo velho e supervalorizar o corpo jovem e magro.
Relationship among physical activity level, mood and anxiety states and Quality of Life in Physical Education students.
Background:
Physical activity level (PAL) is known to play an important role in reducing risk factors associated with sedentarism, in addition to
improving the mental health and health-related quality of life (HRQL).
Objective:
Investigate the relationship of PAL and their domains with HRQL, mood state (MS) and anxiety. Method: 140 Physical Education
students (23.6 ± 3.7 years) were evaluated. The Baecke Habitual Physical Activity and Quality of Life (QOL-36) questionnaires,
State-Trait Anxiety Inventories (STAI-S and STAI-T) and Profile of Mood States (POMS) scale were used to investigate PAL,
HRQL and mental health indicators. Pearsonâs correlation coefficient examined the association between PAL and both mental health
and HRQL parameters.
Results:
There was a correlation between state anxiety and both the domain leisure-time physical activity (LTPA) (p = 0.013) and total PAL
score (p = 0.010). In relation to MS, a negative correlation was found between LTPA and total mood disorder (TMD) (p = 0.004).
However, there were positive correlations between the vigor subscale and both LTPA (p=0.001) and total PAL (p=0.019). With
respect to HRQL, analysis of the relationship between LTPA and total PAL demonstrated positive coefficients with the physical
component summary (PCS) (p=0.000; p = 0.005), mental component summary (MCS) (p = 0.000; p = 0.006) and total
HRQL (p = 0.000; p = 0.003). Conclusion:
The findings suggest that the rise in LTPA was related to an increase in HRQL and MS. However, PAL was positively related to
anxiety
Effects of Aerobic Exercise on Anxiety Symptoms and Cortical Activity in Patients with Panic Disorder: A Pilot Study
Background:
The effects of the aerobic exercise on anxiety symptoms in patients with Panic Disorder (PD) remain unclear. Thus, the investigation of possible changes in EEG frontal asymmetry could contribute to understand the relationship among exercise, brain and anxiety.
Objective:
To investigate the acute effects of aerobic exercise on the symptoms of anxiety and the chronic effects of aerobic exercise on severity and symptoms related to PD, besides the changes in EEG frontal asymmetry.
Methods:
Ten PD patients were divided into two groups, Exercise Group (EG; n=5) and Control Group (CG; n=5), in a randomized allocation. At baseline and post-intervention, they submitted the psychological evaluation through Panic Disorder Severity Scale (PDSS), Beck Anxiety Inventory (BAI), Beck Depression Inventory-II (BDI-II), EEG frontal asymmetry, and maximal oxygen consumption (VO2max). On the second visit, the patients of EG being submitted to the aerobic exercise (treadmill, 25 minutes, and 50-55% of heart rate reserve) and the CG remained seated for the same period of time. Both groups submitted a psychological evaluation with Subjective Units of Distress Scale (SUDS) at baseline, immediately after (Post-0), and after 10 minutes of the rest pause (Post-10). The patients performed 12 sessions of aerobic exercise with 48-72 hours of interval between sessions.
Results:
In EG, SUDS increased immediately after exercise practice and showed chronic decrease in BAI and BDI-II as well as increased in VO2max (Post-intervention).
Conclusion:
Aerobic exercise can promote increase in anxiety acutely and regular aerobic exercise promotes reduction in anxiety levels.Eduardo Lattari acknowledges the financial support of the Coordenação de Aperfeiçoamento de Pessoal de NĂvel
Superior (CAPES)Peer Reviewe
Proposta de teste de corrida em piscina rasa para mulheres praticantes de hidroginåstica: fidedignidade e classificação da distùncia percorrida
HipertensĂŁo arterial em adolescentes do Rio de Janeiro: prevalĂȘncia e associação com atividade fĂsica e obesidade
Predation of rodent Calomys sp. (Cricetidae), by marsupial Monodelphis domestica (Didelphidae) at BuĂque, PE
This paper records the predation on a specimen of Calomys sp. by Monodelphis domestica. The event took place on 07/30/2008, during the night, in a Caatinga area in Parque Nacional do Catimbau, Buique, Pernambuco, Brazil. This observation confirms the presence of rodents in the diet of M. domestica