Total occlusion pressure (TOP) is an important variable to ischaemic exercise training because the optimal pressure of flow restriction (OPR), applied during this exercise modality, is derived from it. Despite the common use of Doppler ultrasound (DU) to determine the TOP, the reproducibility of this assessment was not evaluated yet. Given this, the objective was to evaluate the reproducibility of DU for the measurement of TOP in upper limbs and determine the predictive variables. Thirteen male volunteers attended three times to the laboratory. On the 1st day, we assessed arm circumference (AC), systolic blood pressure (SBP) and diastolic (DBP), and brachial artery TOP. On 2nd and 3rd days, only TOP was assessed. We found a coefficient of variation of 5·6% and an intraclass correlation coefficient of 0·795 for the DU. In the analysis of TOP predictive variables, the Spearman coefficients (R) were 0·813 (SBP), 0·786 (DBP) and 0·388 (AC). Therefore, these results support that DU has good reproducibility for the TOP and that SBP and DBP should be considered to the determination of TOP in upper limbs.
Introduction:The high demand level in sports has encouraged the search for strategies to increase the yield. In this context, manual therapy through high-velocity low-amplitude (thrust) has been employed in many sports. Despite the adhesion of manual therapists in clinical practice, there were no systematic reviews on this topic. Objective: To evaluate the effects of thrust on the performance of athletes in relation to the outcomes hand-grip strength, jump height and running speed. Methods: The databases used in the search were MEDLINE / PUBMED, LILACS, CINAHL, PEDro, WEB OF SCIENCE, CENTRAL and SCOPUS, and Randomized controlled trials were included, whose participants were professionals or recreational athletes and had thrust as intervention. The methodological quality of the studies was assessed using the PEDro scale of 10 points. Intervention effects were determined by the mean difference and confidence interval. The data analysis was done in the descriptive form due to the heterogeneity found among studies. Results: Five trials were included with a total of 95 individuals. The methodological quality of studies was low, with an average value of 5.6 on the PEDro scale. It was found two articles for each outcome, but in none of them was presented differences between the experimental and control groups considering the confidence interval. Conclusion: The current evidence is insufficient to determine the use or nonuse the MAVBA in sports in order to improve performance.
Abstract:Although many health professionals believe that exercise protects the athletes against thrombosis, it is discussed whether elite athletes are exposed to many thrombogenic acquired risk factors such as: dehydration, hemoconcentration, repeated microtraumas and extended periods of immobilization during travel or injury. Additionally, the use of combined oral contraceptive (COC) may increases the risk of venous thrombosis fourfold in healthy women. We report a case of a 21-years-old professional female football athlete who developed deep vein thrombosis (DVT) followed by pulmonary embolism (PE). The outpatient hypercoagulability workup was negative and the case was associated to the use of COC pills. The patient was treated with rivaroxaban for 5 months, with complete resolution of the symptoms. There are a few cases in the literature of venous thromboembolism (VTE) involving athletes. Cases of VTE attributable to the use of COC are extremely rare in this population. The diagnosis of VTE in athletes is a challenge for physicians, because the symptoms may erroneously be confused with musculoskeletal complaints. Team physicians who work with female athletes should be alert to modifiable risk factors for VTE, as well as able to perform the early diagnosis and initial clinical management of this condition. DVT should be considered as a differential diagnosis of calf pain in women, especially in athletes, due to the well-defined increase on the risk of thrombosis with the use of COC pills.
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