silamud@gmail.com / Although the National Committee of Medical Residency (CONAREME) has increased the number of nephrology residency positions in Peru, the increase has not been proportional to the number of applicants. This is worrisome in an environment lacking of nephrologists, like our country. The Peruvian Society of Nephrology (SPN) should take the measures to make this specialty more attractive to Peruvian physicians. / Embora a Comissão Nacional de Especialização Médica (CONAREME) tenha aumentado o número de vagas para Nefrologia no Peru, não houve um aumento proporcional do número de participantes para esta especialidade, o que é preocupante em um contexto no qual são necessários mais nefrologistas no país. A Sociedade Peruana de Nefrologia (SPN) deve tomar medidas para tornar a nossa especialidade mais atraente para os médicos peruanos.

This research examined the time-course of muscle damage in the squat, bench press, and deadlift. Ten resistance-trained males performed four sets to failure with 80% of one-repetition maximum (1RM) for each exercise on three separate weeks. Swelling, range of motion (ROM), delayed onset muscle soreness (DOMS), lactate dehydrogenase (LDH), creatine kinase (CK), and average concentric velocity (ACV) were assessed pretraining and at five timepoints post-training: -0, 24, 48, 72, and 96 hours. Swelling (p<0.01) increased immediately post-training, and DOMS (p<0.01) increased at 24 hours post-training in the bench press condition. Additionally, DOMS increased at 48 hours in both squat and deadlift conditions (p<0.01). Squat and deadlift elevated CK immediately post-training (p<0.01), but LDH only increased in the squat post-training. Immediately post in the bench press ACV was decreased (p<0.01) along with in the squat for up to 72 hours (p<0.01), however, ACV did not change following the deadlift (p>0.05). / Includes bibliography. / Thesis (M.S.)--Florida Atlantic University, 2018. / FAU Electronic Theses and Dissertations Collection

Made available in DSpace on 2014-06-11T19:30:53Z (GMT). No. of bitstreams: 0 Previous issue date: 2007-03-29Bitstream added on 2014-06-13T20:40:44Z : No. of bitstreams: 1 mota_gr_dr_rcla.pdf: 603964 bytes, checksum: 2fc447ceef83add8c5896224e0f522e8 (MD5) / Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) / O objetivo deste estudo foi verificar o efeito agudo dos exercícios resistidos com pesos sobre os níveis basais de leptinas adiponectina, fator de necrose tumoral alfa, perfil lipídico, variáveis antropométricas, glicemia, pressão arterial sistólica e diastólica, frequência cardíaca, duplo produto e creatina cinase em adultos não treinados. Este trabalho foi aprovado pelo Comitê de de Ética do Instituto de Biociências da UNESP de Rio Claro. Vinte e cinco indivíduos foram selecionados dentro dos critérios de inclusão e exclusão, sendo 11 homens e 14 mulheres (idade 29,54§2,7 e 23,61§2,02 anos), respectivamente. Avaliação antropométrica para obtenção do IMC, da relação cintura-quadril e da composição corporal foram realizadas. O protocolo de exercícios consistiu de duas sessões, com 48 horas de intervalo, com nove exercícios para os principais grupos musculares, sendo utilizado um regime de 3 séries de 12 repetições com a carga determinada em testes prévios. O índice de massa corporal (IMC) foi de 26,5 e 22 kg/m2, para homens e mulheres, respectivamente. O somatório dos pesos utilizados nos exercícios do protocolo foi signicativamente maior (P < 0,05) para o grupo masculino do que para o feminino (352,81§25,79 kg versus 185,69§12,96 kg). O percentual de gordura corporal foi signicativamente menor para o grupo masculino em relação ao feminino. Houve diminuição signicativa nos níveis de glicose para ambos os grupos, em torno de 40% (masculino: de 104§3 para 61§1 mg/dL, e feminino: de 99§2 para 61§2 mg/dL) e colesterol total (12%) para ambos os grupos (masculino: de 174§10 para 152§12 mg/dL, e feminino: de 200§8 para 175§10 mg/dL). / The purpose of this study was to evaluate the efect acute of resistance training on the blood pressure, percentage of body fat, creatine kinase, glycemia, lipid profile, leptin, adiponectin, and tumour necrosis factor levels in healthy volunteers. This study was approved by the policies and ethical Committee of the Institute of Bioscience from UNESP. Twenty five volunteers, 11 men (age 29§33 years) and 14 women (23§2 years) were eligible. The training protocol consisted of 2 bouts with 9 different exercises: leg press 45l, supine bench press, lat pull down, bilateral knee-extension, bilateral knee flexion, triceps pulley, standing free-weight biceps curl, dumbbell side shoulders raise and abdominal. Resistance exercises were performed at 12RM with 3 sets of 12 repetitions, resting time of 2 minutes between one exercise and the next. The body mass index (BMI) was 26.5 and 22 kg/m2, for men and women, respectively. The work load was signicantly higher in men (P < 0,05) as compared to women (352,81§25,79 kg versus 185,69§12,96 kg). Men exhibited lesser values for percentage of body fat and skinfold thickness than women. Blood glucose and total cholesterol levels were signicantly reduced in both groups approximately 40% and 12% after resistive exercise (glucose men: from 104§3 to 61§1 mg/dL, and women from 99§2 to 61§2 mg/dL and total cholesterol men from 174§10 to 152§12 mg/dL, and women from 200§8 to 175§10 mg/dL). On the other hand, triglycerides levels were reduced only in men group (31% from 125§19 to 86§10 mg/dL), whereas LDL cholesterol (from 129§7 to 102§11 mg/dL) and serum leptin (from 20.20§2.99 to 15.55§2.55 ng/mL) was diminished in women group. In both groups, the resistive exercise provokes increase in creatine kinase (men from 152,12§45,55 to 727,84§287,64 U/L and women from 51,54§3,57 to 1192§404,83 U/L).

The purpose of this study is to compare linear periodized (LP) and daily undulating (DUP) periodized strength training programs, and determine if either method of periodization elicits superior gains in 1 Repetitions maximums (1RM) for back squat (BS) and bench press (BP) (core exercises). Nineteen subjects (n=19) underwent a 6-week resistance-training (RT) program. Participants performed both BS and BP two day a week. The LP group linearly increased intensity while decreasing volume. While the DUP group daily changed intensity and volume. Total volume for both BS and BP were equal for both LP and DUP. Both BP and BS increased significantly from pre to post for both groups. However, there was no significant difference in pre-post strength measure in the LP compared to DUP.

The present study was designed to determine if BIA and skinfolds could track changes in body composition like DEXA. Fifty male volunteers participated in a 12-week high-intensity resistance-training program. Body composition was assessed using DEXA, skinfolds (SF), and BIA. Results indicate when DEXA was used as the criterion measure; BIA and SF may not be appropriate assessment techniques. BIA and SF significantly overestimated percent fat and fat-weight pre- and post-treatment (p<0.05). Although SF and BIA exhibited acceptable r-values, significant differences were observed between DEXA and BIA and SF (p < 0.0001). These results indicate that DEXA’s ability to track changes in body composition may be more appropriate compared to BIA and SF during and following a resistance-training program. Future studies using hydrostatic weighing are needed to determine if differences observed are the results of DEXA’s accuracy in tracking fat free-weight or the inability of BIA and skinfolds to track changes.

Strength and Conditioning for Young Athletes offers an evidence-based introduction to the theory and practice of strength and conditioning for children and young athletes. Drawing upon leading up-to-date research in all aspects of fitness and movement skill development, the book adopts a holistic approach to training centred on the concept of long-term athletic development and the welfare of the young athlete.

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Practical blood flow restriction training is a new training technique that has the potential to increase muscular hypertrophy and muscular strength while allowing practitioners to train with lighter loads (20-30% of 1-RM). Through the use of elastic knee wraps, the limbs can be restricted using a perceived pressure scale. The comparison of practical blood flow resistance training with traditional, non-blood flow restricted resistance training and its effects on muscular hypertrophy and strength has not been investigated. Twenty-one resistance-trained males participated in a 4-week training program and were randomly assigned to one of two groups: Practical BFR training (BFR; n = 10) and Resistance training (RT; n = 11). The primary difference between the groups was the BFR group performed approximately 62% of all sets blood flow restricted at 20-30% of 1-RM while the RT group performed all sets at an intensity of > 70% 1-RM in a traditional manner (non-blood flow restricted). Perceived pressure for blood flow restriction in the BFR group for the arms and legs was 7 out of 10. Workouts for both groups were similar and consisted of whole body routines ~3 days/week. A 2x2 repeated measures ANOVA was used to assess group, time, and group by time interactions. Statistical significance was set to p ≤ 0.05. There was a no difference in total lifting volume with the BFR group achieving a total lifting volume that was 11% less than the RT group. There was a main effect for time for biceps cross-sectional area (p = 0.004), thigh girth (p = 0.002), bench press 1RM (p = 0.001) and leg press 1RM (p < 0.001). Specifically, BFR improved from 220.5 ± 65.1 to 235.0 ± 50.6 pounds and from 822 ± 135.9 to 952.5 ± 168.9 pounds in the bench press and leg press, respectively. The RT improved from 245.9 ± 60.9 to 257.7 ± 53.5 pounds and from 780.5 ± 192.4 to 957.3 ± 213.4 pounds in the bench press and leg press, respectively. No interaction effects were observed for all hypertrophy and strength variables. 4-weeks of practical blood flow restriction training is as effective for inducing maximal bench press and leg press strength, as well as biceps muscle size and thigh muscle size, as compared to traditional resistance training, despite training at low percentages of subjects 1-RM.