Revista Brasileira de Nutrição Esportiva

4-9

Authors: Everton Marcio Derisso, Yuri Lopes Motoyama, Paulo Eduardo de Assis Pereira, Paulo Henrique Silva Marques de Azevedo, Gilmar Esteves de Jesus, João Paulo Botero

The supplementation of sodium bicarbonate (NaHCO3) is being used as a way to induce blood alkalosis and increase the buffering chemical capacity. The literature shows a need for studies that use supplemental NaHCO3 at high intensities lasting more than 5 minutes. This study compares the effect of supplementation of NaHCO3 in speed corresponding to maximum working speed (vMAX) and the respiratory compensation point (vRCP) during an incremental treadmill test. We evaluate six recreationally active males (22.00 ± 2.00 years, 81.80 ± 9.90 kg, 1.81 ± 0.06 m and BMI 25 ± 2 kg/m2) and previously trained. The volunteers presented to the laboratory on two different days. They ingested 0.1 g/kg body weight of NaHCO3 (Group B) or placebo with calcium carbonate (CaCO3) (Group P) and performed an incremental test on a treadmill with 1km/h increments every 2 minutes until volitional exhaustion maximum. There was no significant difference in the velocities corresponding to vPCR and vMAX with supplementation of NaHCO3 and in any respiratory parameter. The ingestion of NaHCO3 at a concentration of 0.1 g/kg body weight does not improve performance in an incremental test on a treadmill. Key words: Exercise, Performance, Anaerobic threshold, Blood alkalosis.

20-29

Authors: Rafaela Souza, Giovana Cristina Ceni

The quest for the perfect body aesthetically and lack of a healthy body has led people to use improperly, substances that may potentiate the shortest time possible to your wishes. The aim of this work was to verify the consumption of dietary supplements and check the self-perception of body builders in many academies of Palmeira das Missões – state of Rio Grande do Sul, Brazil. The instrument used was a questionnaire containing 17 multiple-choice and descriptive questions regarding the personal profile of who attend the academies. The questionnaire also contained a tool for assessment of body image perception. We evaluated 56 bodybuilders of both sexes, 77% (n = 43) men and 23% (n = 13) women. About the self-perception, it was found that, among men 70% (n = 30) showed dissatisfaction with their image, while in females this figure was 77% (n = 10). Sources of prescription dietary supplements are not done by a trained professional. For men, the greatest source of prescription supplements was recommended by friends (41.86%), the gym teacher (51.16%) and self indication (23.25%). For women, the prescription was taken by gym teacher (76.92%), followed by the sellers (15.38%) and friends (15.38%).The results presented here reveal that the consumption of dietary supplements by body builders are increasingly evident, stimulated by market appeal and not professionally trained. Key words: supplementation, self-image, physical exercise.

35-51

Authors: Damares Bernardino Corrêa, Renata Gomes Navarro Kachvartanian, Antonio Coppi Navarro

Introduction: Dietary supplements have been around for decades, for people who could not meet their nutritional needs only in the food. In Brazil, there was a misuse of dietary supplements and drugs that have grown up in environments of physical exercise, and the trend is in the gyms and sports associations. Objective: We evaluated the use of supplements and anabolic substances in 51 physically active in a fitness Natal-RN. Materials and methods: In structured questionnaire used in most protein supplements, energy accelerators, multivitamins, frequency of use, indication, and other substances used, who indicated the type and location of sales of supplements. Results: Only 51 of the participants were male (n) 11 (21.57%) used the protein supplement BCAA and female (n) 5 (9.80%) Whey protein consumed. The use of the energy consumed the same supplement, but different numbers males consumed coffee (n) 11 (21.57%) and female (n) 8 (15.69%). With multivitamins, males consumed around (n) 9 (17.65%) and female, (n) 6 (11.76%) of omega. With accelerators males used linseed oil (n) 3 (5.88%) and the female thermogenic liquid (n) 5 (9.80%). Of these, 58.82% respondents had nutritional counseling against 39.22% were followed from other sources not recommended. Of the total, the annual frequency of physical activity for men was (n) 16 (31.37%) and women (n) 17 (33.33%). Discussion: The data also indicate concern about the frequency of physical activity and the adoption of practices in the consumption of dietary supplementation. Conclusion: And certain attitude should be applied by professionals who are qualified to conduct nutrition education. Key words: Supplementation, Physical activity, Doping biochemical, Nutritional Guidance.

58-64

Authors: Luana Palmeira Pereira

The habit of doing workouts combined with use of nutritional ergogenic or pharmacological has grown considerably in the last years. Whether for esthetic reasons or in order to improve some performance aspects, athletes consume a large amount of these products. In this sense, the purpose of this study is: survey the consumers profile of a nutritional ergogenic resources in Barra do Piraí gyms (RJ state), enumerate the products used by users of both sexes and verify the prescription source of these products to researched participants, ascertain if the participants achieved the expected results with use of these products and if they caused any side effects. This is an observational study, which evaluated 101 athletes of both genders and social classes. It was found that the majority of participants 75% (n = 76) reported the use of nutritional ergogenic or pharmacological, with the highest prevalence among men. Two products were the most consumed: whey protein 56.57% (n = 34) and creatine 42.10% (n = 25). The majority 45% (n = 34) reported consuming ergogenic without an expert guidance. Therefore, that the study shows the importance of each time more the professional in the field of nutrition be inserted in the sports ground for possible explanations about the effects of this product type is found between sportsman. Key words: Nutritional ergogenic and pharmacological, Supplements, Workout.

74-80

Authors: Jessica Maria Leite de Oliveira e Silva, Luiz Cláudio Gagliardo

Mixed Martial Arts (M.M.A.) is a sport that combines various types of fight modes in a single combat rule. It requires heavy training and attention to all details of the mixed martial arts in order for the athlete to be 100% fit and precise in the day of the fight. The aim of this study was to evaluate the methods and strategies used in M.M.A. for weigh loss in the athlete’s physiological system, as well as to evaluate their performance. A questionnaire was given to the M.M.A. athletes for them to answer what they practice in order to accomplish rapid body mass loss. The program, Microsoft Excel 2007, was utilized for tab graphics. A total of 8 male athletes, from the ages of 21 to 35, responded to the questionnaire. The method used for weight loss by using sauna and antiperspirant clothes was 90% and the restriction of carbohydrate was 80% and liquid was 40%, being that this restriction and weight loss occurs in the pre-competitive week. These strategies cause harmful effects to the M.M.A. athletes, such as hormonal imbalance, electrolyte imbalance, cardiovascular system alterations, decreased renal function, impaired mental status in the long term, as well as mood changes. An Inadequate diet and short recovery time can lower the athlete's anaerobic performance, which prevails in M.M.A. This research can teach M.M.A athletes that through gradual changes and some nutritional rules, they can obtain a solution to impede rapid weight loss. Key words: Weight loss, Body weight, Dehydration, Performance, M.M.A.