Roberto Carlos Vieira Junior

Neurochemistry of Neurochemicals: Messengers of Brain FunctionsStrength Training as an Adjunct to the Maintenance of Muscle Mass in Patients with Head and Neck Cancer

Head and neck cancer (HNC) is one of the most common types of the disease, particularly among men, and is characterized by a high incidence of death. Among the non-pharmacological factors that help in survival and improving quality of life is physical exercise, especially strength training. The purpose of this short communication was to briefly review the literature and present a training proposal for oncology patients with HNC. Evidence is provided that physical exercise, mainly short-term strength (HIIT [High-Intensity Interval Training]) and aerobic training, contributes to increased expectation and quality of life in cancer survivors. After reviewing the current state of literature, we conclude that strength training, by providing maintenance of muscle mass, improves the autonomy and quality of life of oncology patients with HNC.

Parâmetros bioquímicos e cinética de lactato sanguíneo de sujeitos HIV+ submetidos ao treinamento físico combinado

The aim of the study was to verify the blood lactate kinetics (BLK) and the response to combined physical training (CPT) as well as to evaluate the effects on markers related to biochemical, immunological, cardiorespiratory and body composition in HIV + people. Twelve HIV+ volunteers performed CPT during 16 weeks, and were subjected to evaluations in 3 moments: pre, 8 and 16 weeks of CPT. At the end, there was improvement in immune and cardiorespiratory parameters, muscular strength and of glycemic and lipid profiles. Concerning BLK, the concentrations were increased after the CPT. We conclude that CPT improved the measured variables, nevertheless, the issue related to the BLK requires further studies in order to clarify this occurrence.

Blood lactate minimum of rats during swimming test using three incremental stages

Determinar la intensidad del lactato minimo (ILM) por LACmintest incremental mediante tres etapas graduales (LACmintest3) y evaluar su sensibilidad a los cambios en condiciones aerobias (CA). Veinte ratas realizaron: LACmintest3 (1): induccion de hiperlactacidemia y fase incremental (4 %, 5% y 6,5 % de pc); pruebas de cargas constantes equivalente (2) y arriba (3) de la ILM. Mitad de los animales fueron sometidos a entrenamiento fisico con la persona carga equivalente a la ILM y las pruebas se realizaron nuevamente. La carga media en LACmintest3fue 5,04 ± 0,13 % pc a 5,08 ± 0,55 mmol L-1 de lactato minimo en la sangre (LMS). Se observo una estabilizacion y desproporcionado aumento de lactato sanguineo en las pruebas 2 y 3, respectivamente. Despues del periodo de entrenamiento fisico, la media fue menor en el grupo entrenado. LACmintest3resulto ser un buen indicador de la ILM y sensible a los cambios que se producen en el CA en ratas entrenadas por nadar.