This study examined the relationship between average concentric velocity (ACV) and repetitions in reserve (RIR) in the back squat, bench press, and deadlift. Fourteen resistance-trained men performed three experimental sessions (one for each exercise), which was comprised of 4 sets to failure at 80% of one-repetition maximum. The ACV was recorded on every repetition of every set and cross-referenced with RIR. The main findings of this study were that RIR was a significant predictor of ACV for all three exercises; the mean set ACV was significantly different between exercises (p<0.001); and the relationship between RIR and ACV was set-dependent (p<0.001). However, the within-exercise difference in ACV from set-to-set is unlikely to be practically significant as all of these ACV differences were below the threshold of 0.06 m.s-1, which is the smallest worthwhile change in ACV. Therefore, these results suggest that the RIR/ACV relationship is exercise-specific, and is stable from set-to-set. / Includes bibliography. / Thesis (M.S.)--Florida Atlantic University, 2020. / FAU Electronic Theses and Dissertations Collection

The main purpose of this study was to assess the effect of progressive resistance training on the blood lipid profile in post-menopausal women. Thirty-four female subjects aged 50 to 75 years were selected from the population of Grahamstown, South Africa. All participants were previously sedentary and possessed at least one lipid profile abnormality but were otherwise healthy. Pre-tests included a sub-maximal stress Electrocardiogram, measures of stature, mass, central and limb girths as well as an oral glucose tolerance test (OGTT) and a total blood lipid profile. Participants took part in a 24-week progressive resistance training programme, consisting of three supervised sessions per week, each lasting 45 minutes and were not permitted to lose more than 10% of initial body mass during the 24-week study. All pre-test measures, excluding the stress ECG and the OGTT, were repeated every four weeks for the duration of the study. Results were that body mass, body mass index and waist-to-hip ratio did not change. Girth measures at mid-humerus, chest, waist, hip, mid-quadricep and mid-gastrocnemius all decreased significantly (p=0.05). LDL-cholesterol increased significantly over the course of 24 weeks (3.61mmol.L-1 to 4.07mmol.L-1) as did total cholesterol (5.81mmol.L-1 to 6.24mmol.L-1). Triglyceride concentration remained unchanged and HDL-cholesterol decreased significantly between the pre-test measure (1.55mmol.L-1) and the measure after six months (1.42mmol.L-1). It can be concluded that the blood lipid profile in a sample of post-menopausal women was not positively affected by a progressive resistance training programme over a 24 week period. / Maiden name: Kelly, Janet Erica

This study was to clarify strength factors using 12 selected exercises on the Universal Gym, and to determine what measures present a valid method of assessing strength of college-aged males, Eighty-eight males enrolled in beginning weight-training classes used the Universal Gym for twelve weeks, Subjects were tested for maximum strength on 12 exercises, Alpha and canonical factor analyses were performed on raw scores of all measures, and on scores when body weight and standing height variances were removed. A three-factor structure of upper extremity, lower extremity, and trunk strength was revealed when weight, and weight and height combined were statistically controlled. Results showed that residualized scores of weight can be used to evaluate strength on the Universal.Gym,

This study was to develop normative data of isotonic muscular strength in college females using the Spartacus model Universal Gym bench press and leg extension and to control for the influence of body weight. Two hundred and two college age females enrolled in weight training and conditioning classes used the Universal Gym for twelve weeks. Subjects were tested for maximum strength on 2 exercises and their percent body fat was calculated. Pearson-product moment correlations between lean body weight , body weight and the bench press test and the leg extension test were correlated. After statistically controlling for the effects of body weight, percentile ranks were calculated for both tests.

The purpose of this research was to investigate the effects of eccentric phase duration on concentric outcomes at 60% and 80% of one-repetition maximum (1RM) in the squat and bench press. Sixteen resistance-trained males completed four laboratory visits as follows: Day 1- 1RM testing; Day 2- establishment of normative eccentric durations; Days 3 and 4- randomized fast (0.75 times) or slow (2 times) eccentric duration variations, which were controlled by visual and auditory metronomes. Eccentric duration was significantly and inversely correlated with average concentric velocity (ACV) at 60% (r = 0.408) and 80% (r = -0.477) of 1RM squat and at 100% of 1RM bench press. At 60% of 1RM squat, both fast and slow eccentric conditions produced greater (p<0.001) peak concentric velocity (PCV) than normative duration with fast also producing greater PCV than slow (p=0.044). Therefore, fast eccentric durations may benefit concentric velocity. / Includes bibliography. / Thesis (M.S.)--Florida Atlantic University, 2018. / FAU Electronic Theses and Dissertations Collection

Orientador: Florindo Stella / Banca: Geni de Araujo Costa / Banca: José Luiz Riani Costa / Resumo: A doença de Alzheimer (DA) é caracterizada por alterações cognitivas, psicológicas, comportamentais, funcionais e metabólicas. Dentre estas alterações, destacamos os sintomas depressivos e as alterações metabólicas. A prática de atividade física tem se mostrado uma importante ferramenta não farmacológica que auxilia no tratamento da DA. Este estudo foi dividido em duas partes. O estudo 1 teve como objetivo caracterizar o nível de atividade física; analisar se há associação do nível de atividade física e sintomas depressivos e entre nível de atividade física e variáveis metabólicas em pacientes com DA. Participaram deste estudo 37 pacientes nos estágios leve e moderado da DA. Os sintomas depressivos foram avaliados pela Escala de Cornell para Depressão em Demência e pela Escala Geriátrica de Depressão; o nível de atividade física foi avaliado pelo Questionário Baecke Modificado para Idosos. Para mensurar as variáveis metabólicas (colesterol total, HDL, LDL, VLDL, triglicérides, glicemia e homocisteina sérica) os pacientes foram encaminhados a um laboratório especializado. Para traçar o perfil cognitivo global utilizamos o Mini-Exame do Estado Mental e o Montréal Cognitive Assessment. Para análise dos dados utilizamos o teste de Shapiro Wilk para verificar a distribuição dos dados. O teste de correlação de Spearman foi utilizado para verificar possíveis relações entre as variáveis analisadas. Os testes de t student e U Mann Whitney foram utilizados para comparar os grupos com maior e menor nível de atividade física. Admitiu-se nível de significância de 5% para todas as análises. O nível de atividade física encontrado foi considerado baixo. Pacientes mais ativos apresentam menos sintomas depressivos e menor... (Resumo completo, clicar acesso eletrônico abaixo) / Abstract: Alzheimer's disease (AD) is characterized by cognitive, psychological, behavioral, functional and metabolic. Among these changes, we can detach the depressive symptoms and metabolic changes. The practice of physical activity has proved to be an important tool as a non-pharmacological treatment of these changes. This study was divided into two parts. The study 1 aimed to characterize the level of physical activity, analyze whether there is an association of physical activity level and depressive symptoms and between physical activity level and metabolic variables in patients with AD. The study included 37 patients in mild and moderate stages of DA. Depressive symptoms were assessed by the Cornell Scale for Depression in Dementia and the Geriatric Depression Scale, and the level of physical activity was assessed by the Baecke Questionnaire Modified for the Elderly. To measure the metabolic variables (total cholesterol, HDL, LDL, VLDL, triglycerides, blood glucose and serum homocysteine) patients were referred to a specialized laboratory. To characterize the overall cognitive profile, it was used the Mini-Mental State Examination and the Montréal Cognitive Assessment. For data analysis was used the Shapiro Wilk test to verify the data distribution. The Spearman correlation test was used to verify possible relations between the variables. The Student's t test and U Mann Whitney test was used to compare the groups with higher and lower levels of physical activity. The level of significance was set at 5% for all analyses. The level of physical activity was found to be low. Patients that were more active showed less depressive symptoms and lower serum homocysteine concentration. Relationships were found between physical activity level and depressive symptoms according to the patient response; between physical activity level... (Complete abstract click electronic access below) / Mestre

No description available.

Recently, the body mass of college football lineman has increased markedly and places them at higher risk for a number of postcompetitive pathogenic chronic health consequences. Recognition of problems associated with oversized athletes is easily accepted intellectually–however, the practicalities of solving the problem have not been fully realized.

The short-term enhancement of physical performance known as post-activation potentiation could be exploited in the design of sport-specific training sessions. The purpose of this study was to compare the potentiation of softball throwing velocity following two kinds of resistance-training session: a control session consisting of traditional heavy-load sets, and an experimental "Pmax" session consisting of sets of loads selected to maximise the mean power output during explosive bench presses. Both sessions included plyometric medicine ball chest passes. Eight male softball players of premier grade, with at least 2 yr experience of resistance training, performed the two sessions in a crossover fashion, with 30 min recovery between sessions. Softball throwing velocity was measured with a radar gun immediately before and at 2-min intervals 4-10 min after each session. Percent effects on throwing speed were analyzed via log transformation, and t statistics were used to make magnitude-based inferences with respect to the smallest important change of 2%. The average throwing velocity increased between pre and post tests for both treatments; the average increase was a substantial 2.3% (0.5 to 4.1%). Throwing velocity after Pmax training was a trivial 0.4% slower relative to that after heavy-load training (90% confidence limits -1.2 to 1.9%). There was a greater change in throwing velocity by 10 min post treatment than by 4 min post treatment; the change by 10 min was 5.0% (3.2 to 6.7%) for the Pmax training session and 5.3% (2.1 to 8.6%) for the heavy-load session. These effects were almost certainly beneficial for throwing speed, but the difference between them was unclear (-0.3%; -3.7 to 3.1%). The mean change between 4 and 10 min for both treatments combined was 5.1% (90% confidence limits 3.6 to 6.7%). The short-term enhancement of throwing performance following heavy-load and Pmax training sets has implications for the design of softball warm-up routines. There is also the potential for softball players to use such training to improve their throwing velocity during games.

The purpose of this study was to compare the muscular strength and endurance of thirty-two men 51 to 79 years of age who engage in weight training (WT), aerobic training (AT), cross training (CT), or no training (S). The design employed in the study was a 2x2 between subjects factorial design with weight training and aerobic training as the two factors. A KIN/COM isokinetic dynomometer was used to test muscular strength and endurance of the dominant leg extensors and chest/shoulder complex. Strength of the leg extensors and chest/shoulder complex were measured as peak torque and peak force, respectively, at a velocity of 60 degrees/second. Endurance of the same muscle groups was measured as the percent decline over 50 continuous maximal contractions at a velocity of 180 degrees/second. A two-way between subjects ANOVA and independent t-tests were used to analyze the difference between mean muscular strength and mean muscular endurance for each group. A significant weight training effect was found for leg strength, with the WT and CT groups (Weight Trained groups) exhibiting a greater peak torque than the AT and S groups (Non-Weight Trained groups). Participating in one of three training programs was found to have a significant effect for chest and shoulder strength, with the WT, CT, and AT groups exhibiting a greater peak force than the S group. However, no significant difference was found between the WT, CT, and AT groups for chest/shoulder strength. The WT group was found to have significantly greater muscular endurance of the leg compared to the S group. No other training effects were observed between any of the groups for either muscular endurance test. / Graduation date: 1992