CORRELAÇÃO ENTRE ESTRESSE PERCEBIDO E NÍVEIS DE ATIVIDADE FÍSICA DE RECEPCIONISTAS DE ACADEMIAS

RESUMOObjetivo: correlacionar os níveis de atividade física (NAF) ficando com o estresse percebido (EP) de recepcionistas de academias do plano diretor sul da cidade de Palmas -TO. Métodos: participaram do estudo 20 recepcionistas, sendo 16 mulheres e 4 homens. Os instrumentos utilizados foram a Escala de Percepção de Stress (EPS-10) e a versão curta do Questionário Internacional de Atividade Física (IPAQ). A idade média dos participantes foi de 25,9 (±4,7) anos. Resultados: a média encontrada de estresse percebido foi de 19,1 (±5,2), quanto aos níveis de atividade física 70% (n=14) foram classificados como ativos ou muito ativos e 30% (n = 6) foram classificados como sedentários ou insuficientemente ativos. Não foi possível encontrar correlação significativa entre os NAF e EP (r= - 0,232; p=0,325). Conclusões: embora a população estudada tenha apresentado bons níveis de prática de atividade física, também encontramos altos valores de estresse percebido. Possivelmente, os agentes estressores da prática laboral neutralizaram os efeitos benéficos de uma vida ativa quanto à percepção de estresse. ABSTRACTObjective: to correlate levels of physical activity (NAF) and perceived stress (PE) of receptionists of academies of the southern master plan of the city of Palmas - TO. Methods: 20 receptionists (16F and 4M) participated in the study, where the instruments used were the Stress Perception Scale (EPS-10) and the short version of the International Physical Activity Questionnaire (IPAQ). The mean age of participants was 25.9 (± 4.7) years. Results: The me an number of Pes was 19.1 (± 5.2), and 70% (n = 14) were classified as active or very active. However, it was not possible to find a significant correlation bet ween NAF and PE (r = - 0.232, p = 0.325). Conclusions: we found no significant correlation between physical activity and stress levels. For, perhaps, stress or work practice counteracted the beneficial effects of an active life on the perception of stress. figshare DOI: 10.6084/m9.figshare.811124

Relation of neck circumference and relative muscle strength and cardiovascular risk factors in sedentary women

OBJETIVO: O objetivo do presente estudo foi verificar a relação da circunferência do pescoço com a força muscular relativa e os fatores de risco cardiovascular em mulheres sedentárias. MÉTODOS: Estudo transversal, realizado com 60 mulheres pré-menopausadas (33,9±9,1 anos; 67,4±13,6kg; 1,57±0,06cm e 27,2±5,3kg/m²). Com base no valor da circunferência do pescoço, a amostra foi dividida em dois grupos: Grupo Circunferência <35cm (n=27) e Grupo Circunferência &gt;35cm (n=33), para efeito de comparação da força muscular relativa e dos fatores de risco cardiovascular. A correlação entre as variáveis foi testada por meio da correlação de Pearson e de Spearman; o nível de significância foi estabelecido em p<0,05. RESULTADOS: Os resultados demonstram que as mulheres com circunferência do pescoço &gt;35cm apresentaram maiores valores de massa corporal, circunferência da cintura, índice de adiposidade corporal, índice de massa corporal, pressão arterial sistólica, glicemia, hemoglobina glicada e volume de gordura visceral, quando comparadas ao grupo com circunferência do pescoço <35cm. Adicionalmente, o grupo com maior circunferência do pescoço apresentou menores valores de força relativa. CONCLUSÃO: A circunferência do pescoço parece ser um importante fator de predição de risco cardiovascular e perda de força relativa em mulheres sedentárias de meia idade.OBJECTIVE: To verify the relation of neck circumference and relative muscle strength and cardiovascular risk factors in sedentary women. METHODS: A cross-sectional study with 60 premenopausal women (33.9±9.1 years; 67.4±13.6kg; 1.57±0.6cm and 27.2±5.3kg/m²). Based on the neck circumference, the sample was divided into two groups: Group Circumference <35cm (n=27) and Group Circumference &gt;35cm (n=33) to compare relative muscle strength and cardiovascular risk factors. The correlation between variables was tested by Pearson and Spearman correlations, with a significance level established at p<0.05. RESULTS: The findings revealed that women with neck circumference &gt;35cm presented higher values of body mass, waist circumference, body adiposity index, body mass index, systolic blood pressure, blood glucose, glycated hemoglobin and volume of visceral fat when compared with the group with neck circumference <35cm. Additionally, the group with larger neck circumference presented lower values of relative strength. CONCLUSION: Neck circumference seems to be an important predictive factor of cardiovascular risk and of relative strength loss in middle-aged sedentary women

Lactate minimum in a ramp protocol and its validity to estimate the maximal lactate steady state

The objectives of this study were to evaluate the validity of the lactate minimum (LM) using a ramp protocol for the determination of LM intensity (LMI), and to estimate the exercise intensity corresponding to maximal blood lactate steady state (MLSS). In addition, the possibility of determining aerobic and anaerobic fitness was investigated. Fourteen male cyclists of regional level performed one LM protocol on a cycle ergometer (Excalibur–Lode) consisting of an incremental test at an initial workload of 75 Watts, with increments of 1 Watt every 6 seconds. Hyperlactatemia was induced by a 30-second Wingate anaerobic test (WAT) (Monark–834E) at a workload corresponding to 8.57% of the volunteer’s body weight. Peak power (11.5±2 Watts/kg), mean power output (9.8±1.7 Watts/kg), fatigue index (33.7±2.3%) and lactate 7 min after WAT (10.5±2.3 mmol/L) were determined. The incremental test identified LMI (207.8±17.7 Watts) and its respective blood lactate concentration (2.9±0.7 mmol/L), heart rate (153.6±10.6 bpm), and also maximal aerobic power (305.2±31.0 Watts). MLSS intensity was identified by 2 to 4 constant exercise tests (207.8±17.7 Watts), with no difference compared to LMI and good agreement between the two parameters. The LM test using a ramp protocol seems to be a valid method for the identification of LMI and estimation of MLSS intensity in regional cyclists. In addition, both anaerobic and aerobic fitness parameters were identified during a single session

Influence of anthropometric factors and physical activity on blood pressure in adolescents from Taguatinga, Federal District, Brazil

This study aimed to analyze the influence of body mass index (BMI) and physical activity level (PAL) on blood pressure (BP) in adolescents. The sample was composed of 799 students of both genders, aged 12.09 (± 0.80). The weight, height and BP were assessed according to internationally established criteria, and BMI was calculated and classified according to the cutoff points proposed by Cole, Flegal and Dietz (2000). To evaluate the PAL, the modified lifestyle questionnaire was used (Silva, Silva, &amp; Martins, 2006). We found that 9.1% of the subjects evaluated have high blood pressure, 11.8% were overweight, 5.4% were obese and 47.2% of the people presented low PAL. The fact of being inactive (OR = 1.99), insufficiently active (OR = 1.87) and obese (OR = 5.1) was associated with an increased risk of developing hypertension. Being inactive or insufficiently active was strongly associated with the development of the obesity (OR = 7.97 and 4.35) respectively. In the studied sample, the overweight, the obesity and low PAL are associated with the development of arterial hypertension. In addition, a low PAL is associated with an increasing number of overweight adolescents.<br /

Reliability of the Wingate anaerobic test in cyclists

The aim of this study was to verify the reliability of selected variables during Wingate anaerobic test, physiologic markers and perceptual associated in trained cyclists. Fifteen male cyclists performed three tests, with workload of 0.087 times the body mass. Measures of peak power, average power, minimum power, fatigue index, heart rate, perceived effort and lactate concentration were collected. It was verified data normality, applied ANOVA One Way repeated with Tukey as post-hoc test, intraclass coefficient correlation and Bland Altman test. Results showed no significant different for the peak power, fatigue index, lactate concentration, heart rate and perceived effort between tests. Of these, peak power, heart rate and perceived effort high and significant intraclass correlation scores were found (.797−.975). Also, peak power showed good agreement between tests. In conclusion, the Wingate anaerobic test showed high reliability for peak power, heart rate and perceived effort in recreational cyclists.</p