No abstract

The purpose of this study was to analyse the effect of a concurrent training session (CT) with different intensities in post-exercise blood pressure responses in normotensive adults. Ten normotensive adult males (30.7  4.1 years) participated in this study, they performed four experimental protocols: a) Strength Training (ST) at 50% of 1RM and aerobic training (AT) between 50-60% of the Working Heart Rate (WHR); b) ST at 50% of 1RM and AT between 80-90% of the WHR; c) ST at 85% of 1RM and AT between 50-60% of the WHR; d) ST at 85% of 1RM and AT between 80-90% of the WHR. Every protocol presented a decrease in the systolic blood pressure (SBP) 1 minute after finishing the training session, however, only the protocol with the intensity of 50% 1RM and 80-90% WHR presented a significant hypotensive effect (p ≤ 0.05). None of the protocols presented a significant decrease in the diastolic blood pressure. We concluded that the hypotensive effect in the SBP can be observed when the CT is performed at the intensity of 50% of 1RM and of 80-90% of the WHR.

In Brazil, the evidence indicates a high prevalence of dissatisfaction with body image (BI) among adult women. Studies show that gym goers have characteristics that differ from other populations. Specifically, women who practice strength training (ST) exhibit intense concern about well-being, which presents as strong self-criticism of the body. This group of women are typically in search for an ideal body pattern stipulated by society. e purpose of the present study was to identify in the women the perception with BI, classify then as satisfied or dissatisfied, and association this information whit age group, anthropometric indicators (body mass index and perimeter of waist), and variables related to the practice of ST (purpose and time of the practice). The sample group consisted of 77 women aged 20 to 54 years (29.83 ± 9.75) who practiced ST. For the assessment of BI, the Body Shape Questionnaire (BSQ) was used in addition to a questionnaire around the other variables. A descriptive analysis was used, chi-squared test and Fisher’s Exact test were adopted at a significance level of 5%. The results demonstrated that among all participants, 87.0% were satisfaction with BI. It was found association direct with the dissatisfaction of BI with the purpose of the practice of ST (p = 0.031) and with the practice time (p = 0.030). Were found, in which the women less satisfied with their BI were those who trained for body mass control and practiced ST for more than 6 months. The other variables did not show significant associations with BI. It is concluded that the women who practice ST have shown a positive perception regarding their body image, associated to the objective and the time of the practice.

Human postural control is a fundamental ability for static and dynamic tasks, especially in hiper- and hipo-functional populations, such as the elderly. The Equimetrix is a clinical device developed to assess both the base of support (BoS) and the center of mass (CoM) dynamics, thus allowing their use as new evaluation and training tools. This study aims to perform a criteria based validation of Equimetrix by comparing the BoS and CoM data with gold-standard equipment. A motion capture system, force platform, and pressure mat were used to calculate the CoM, center of pressure (CoP) and BoS during bipedal, unipedal, feet together and full tandem stances. Results demonstrate an excellent reliability of Equimetrix in terms of spatial accuracy of the CoM, although over-estimating the CoM height. Differences were found when comparing Mean velocity Path with the CoM, but not with the CoP, indicating a lower reliability in time-based parameters. The Equimetrix presents a tendency to overestimate the BoS, with mixed reliability values, which may be related to the different size of sensing elements between the Equimetrix and the pressure sensing mat. These are encouraging results that should be further explored during dynamic tasks.

Estilo de vida de motoristas e cobradores do transporte coletivo Estilo de vida de condutores y cobradores de transporte colectivo