Qualidades físicas de atletas e praticantes de ginástica rítmica pré e pós-púberes

Objetivo Identificar y comparar las cualidades físicas básicas de las atletas y practicantes de Gimnasia Rítmica de Brasil. Métodos Los protocolos utilizados para la evaluación fueron: Coordinación por Burpee (Johnson and amp; Nelson, 1979); Impulsión vertical con Sargent Jump Test (Sargent, 1921); Goniometria de pierna y tronco para la flexibilidad (Dantas et al., 1997). Se utilizo un corte transversal, con tipología descriptiva y delimitación de naturaleza comparativa. Para cálculo de las categorías se aplico la estadística descriptiva por las posiciones de posición y dispersión. El análisis de inferencia para las variables se utilizo con el fin de verificar la existencia de diferencias estadísticamente significativas entre los grupos. La análisis de variancia (ANOVA) con pObjetivo Identificar y comparar las cualidades físicas básicas de las atletas y practicantes de Gimnasia Rítmica de Brasil. Métodos Fueron evaluadas 125 gimnastas y practicantes de Gimnasia Rítmica de Brasil  de 7 a 25 años en diferentes niveles competitivos (Internacional, Nacional y Estadual) y practicantes pre y post menarquía. Los protocolos utilizados para la evaluación  fueron: Coordinación por Burpee; Impulsión vertical con Sargent Jump Test; Goniometria de pierna y tronco para la flexibilidad. Se utilizo un corte transversal, con delimitación comparativa. Se aplico la estadística descriptiva, análisis de inferencia, la análisis de variancia (ANOVA) con

Body Dysmorphic Disorder: Characteristics, Psychopathology, Clinical Associations, and Influencing Factors

Body dysmorphic disorder (BDD) is defined by a recurring and persistent concern characterized by psychic suffering caused by a possible physical imperfection in appearance. It is a severe psychiatric condition, duly confirmed by neuroanatomical findings, very peculiar repetitive behaviors, and specific personalities. The prevalence of BDD is increasing around the world and differs between countries, because of cultural differences and different health-care systems. This increase is worrying because BDD is a pathology that presents comorbidity like severe depression, suicidal ideation, and functional and social impairment. However, BDD is an unrecognized and often not diagnosed in our society. Many patients are ashamed of their complaints and do not usually seek psychiatric help with ease, and unfortunately, they seek help in cosmetic and surgical treatments to improve their appearance, and these professionals are not yet prepared to assist in the diagnosis of this disorder. Therefore, this chapter presents not only the psychopathology of BDD but also its associations with other pathologies and their main factors of influence. Finally, we present a clinical experience with a detailed description of a clinical case. The aim is to contribute to the diagnosis and treatment of this pathology and also to future research that may benefit society and these patients

Effects of Different between Test Rest Intervals in Reproducibility of the 10-Repetition Maximum Load Test: A Pilot Study with Recreationally Resistance Trained Men

International Journal of Exercise Science 12(4): 932-940, 2019. The purpose of this study was to compare the effect of 24-, 36-, 48-, 72- and 96-hours between-test rest intervals on the reproducibility of the 10-RM smith machine back squat (BS), bench press (BP) and leg press at 45 degrees (LP45) exercises. Twelve resistance trained men (26.6 ± 4.5 yrs; 179.0 ± 5.5 cm; 92.2 ± 24.6 kg) performed five sets of identical 10-repetition maximum (10-RM) tests for the BS, BP, LP45 exercises, each set with a different interval between tests: 1) twenty-four hours (Post-24), 2) thirty-six hours (Post-36), 3) forty-eight hours (Post-48), 4) seventy-two (Post-72), and 5) ninety-six hours (Post-96). Significant differences in 10-RM from pretest to posttest were observed for BS in Post-24 (p \u3c 0.001; ∆% = -12.62), Post-36 (p \u3c 0.001; ∆% = -6.57), and Post-96 (p = 0.015; ∆% = 6.84). Similarly, significant differences in 10-RM from pretest to posttest were observed for BP in Post-24 (p \u3c 0.001; ∆% = -9.22), Post-36 (p = 0.032; ∆% = -3.04), and Post-96 (p \u3c 0.001; ∆% = 5.37). Finally, significant differences in 10-RM from pretest to posttest were observed for LP45 in Post-24 (p \u3c 0.001; ∆% = -16.55), Post-36 (p = 0.032; ∆% = -5.09), and Post-96 (p \u3c 0.001; ∆% = 5.54). The reproducibility of 10-RM was examined using intraclass correlation coefficients; BS: 0.944, 0.977, 0.988, 0.986, and 0.954 for Post-24, Post-36, Post-48, Post-72, and Post-96, respectively; BP: 0.894, 0.966, 0.966, 0.960, and 0.976; and LP45: 0.832, 0.957, 0.984, 0.974, and 0.977 5. Based on the findings, the optimal between test rest interval duration for 10-RM testing, to provide the best reproducibility, in resistance trained men appears to be 48 to 72 hours for the BS, BP, and LP45 exercises

Effects of Different Number of Sets of Resistance Training on Flexibility

International Journal of Exercise Science 10(3): 354-364, 2017. The aim of this study was to investigate the effects of six months of training with three different number of sets of resistance training on flexibility in young men. Forty-seven men (mean ± SD age = 24 ± 1yrs; body mass = 79.39 ± 9.12 kg; height = 174.5 ± 5.6 cm) were randomly divided into three training groups performing either one set (G1S), three sets (G3S), or five sets (G5S) of all exercises in a resistance training session or a control group (CG). All groups were assessed pre- and post-training for Sit-and-Reach test and range of motion of 10 joints using goniometry. The training protocol included three weekly sessions and was composed of nine exercises performed at a moderate intensity (eight to 12RM). The results demonstrated significant differences pre- to post-training for the Sit-and-Reach test for all training groups; however, only the G5S showed significant differences when compared to the CG (31.04 ± 5.94cm vs. 23.56 ± 6.76cm, respectively; p \u3c 0.05). Of the ten joint movements measured, there were range of motion increases only to shoulder flexion (G1S), shoulder extension (G3S), elbow flexion (G3S), and knee flexion (G3S) when comparing pre- to post-training (p \u3c 0.05). In conclusion, different resistance training volumes improved flexibility for some joints of young men. These findings indicate that performing only resistance training can result in increases in flexibility

Relationship between anthropometric variables and body image dissatisfaction among fitness center users

The purpose of this study was to identify the anthropometric dimensions related with body image dissatisfaction among fitness center users. Participants were 276 Brazilian members of fitness centers (168 males and 108 females) with ages between 17 and 39 years (mage = 23.93, sd = 5.17). After body mass (BM), body mass index (BMI) and body fat (% BF) were measured, participants indicated their current (cs) and ideal (Is) silhouettes, allowing the calculation of body dissatisfaction as the difference between Is and cs. BMI and % BF were grouped by body dissatisfaction category and analyzed using one-way and repeated measures ANoVA. results revealed that only 1.2 % of men and 6.5 % of women considered themselves satisfied with their body. comparisons of global ratings of their cs and Is revealed that male and female individuals reported that their current bodies were significantly less muscular than their ideal bodies (p < .001), although the degree of dissatisfaction revealed no significant difference between sexes. Moreover, results demonstrated that the relationship between body composition and body dissatisfaction only occurs in individuals that feel very dissatisfied with their body image and appearance

Effect of different resistance exercise repetition velocities on excess post-exercise oxygen consumption and energetic expenditure

The excess post-exercise oxygen consumption (EPOC) consists of the excess oxygen consumed above a resting state following exercise. Performance of resistance exercise can significantly disrupt the body’s homeostasis, with the EPOC being dependent on the specific combination of prescriptive variables. Presently, the effects of different repetition velocities on VO2 and caloric expenditure during and following resistance exercise bouts have not been completely elucidated. Objective: To examine the effect of different repetition velocities on EPOC and total energetic expenditure during and following resistance exercise bouts. Methods: Twenty women (34.6 ± 5.5 years; 159 ± 4.1 cm; 55.1 ± 3.4 kg; 24±2.5 kg/m-²; 18.9 ± 4.3 % body fat) performed two resistance exercise bouts that differed only in the velocity of repetitions: sequence 1 (SEQ1) involved 1 second concentric and eccentric phases and sequence 2 (SEQ2) involved 2 second concentric and eccentric phases. Both bouts utilized a 70% of 1-RM load for all exercises, performed for 3 sets of 10 repetitions. The respired gas analysis was assessed before, during, and for 60 minutes following each bout. Results: None of the variables assessed (i.e. VO2, VCO2, VE/VO2, VE/ VCO2, VE, RQ) were significantly different between bouts (p \u3e 0.05). Conclusion: A relatively slower repetition velocity will produce similar energy expenditure during and following resistance exercise as a relatively faster repetition velocity, as long as the total volume is equal between resistance exercise bouts

Quadriceps foam rolling and rolling massage increases hip flexion and extension passive range-of-motion

Increases in joint range-of-motion may be beneficial for improving performance and reducing injury risk. This study investigated the effects of different self-massage volumes and modalities on passive hip range-of-motion. Twenty-five recreationally resistance-trained men performed four experimental protocols using a counterbalanced, randomized, and within-subjects design; foam rolling (FR) or roller massage (RM) for 60 or 120-s. Passive hip flexion and extension range-of-motion were measured in a counterbalanced and randomized order via manual goniometry before self-massage (baseline) and immediately, 10-, 20-, and 30-min following each self-massage intervention. Following FR or RM of quadriceps, there was an increase in hip flexion range-of-motion at Post-0 (FR: Δ = 19.28°; RM: Δ = 14.96°), Post-10 (FR: Δ = 13.03°; RM: Δ = 10.40°), and Post-20 (FR: Δ = 6.00°; RM: Δ = 4.64°) for all protocols, but these did not exceed the minimum detectable change at Post-10 for RM60 and RM120, and Post-20 for FR60, FR120, RM60, and RM120. Similarly, hip extension range-of-motion increased at Post-0 (FR: Δ = 8.56°; RM: Δ = 6.56°), Post-10 (FR: Δ = 4.64°; RM: Δ = 3.92°), and Post-20 (FR: Δ = 2.80°; RM: Δ = 1.92°), but did not exceed the minimum detectable change at Post-10 for FR60, RM60, and RM120, and Post-20 for FR60, FR120, RM60, and RM120. In conclusion, both FR and RM increased hip range-of-motion but larger volumes (120- vs. 60-second) and FR produced the greatest increases. These findings have implications for self-massage prescription and implementation, in both rehabilitation and athletic populations

Are wearable heart rate measurements accurate to estimate aerobic energy cost during low-intensity resistance exercise?

The aim of the present study was to assess the accuracy of heart rate to estimate energy cost during eight resistance exercises performed at low intensities: half squat, 45° inclined leg press, leg extension, horizontal bench press, 45° inclined bench press, lat pull down, triceps extension and biceps curl. 56 males (27.5 ± 4.9 years, 1.78 ± 0.06 m height, 78.67 ± 10.7 kg body mass and 11.4 ± 4.1% estimated body fat) were randomly divided into four groups of 14 subjects each. Two exercises were randomly assigned to each group and subjects performed four bouts of 4-min constant-intensity at each assigned exercise: 12%, 16%, 20% and 24% 1-RM. Exercise and intensity order were random. Each subject performed no more than 2 bouts in the same testing session. A minimum recovery of 24h was kept between sessions. During testing VO2 was measured with Cosmed K4b2 and heart rate was measured with Polar V800 monitor. Energy cost was calculated from mean VO2 during the last 30-s of each bout by using the energy equivalent 1 ml O2 = 5 calorie. Linear regressions with heart rate as predictor and energy cost as dependent variable were build using mean data from all subjects. Robustness of the regression lines was given by the scatter around the regression line (Sy.x) and Bland-Altman plots confirmed the agreement between measured and estimated energy costs. Significance level was set at p≤0.05. The regressions between heart rate and energy cost in the eight exercises were significant (p<0.01) and robustness was: half squat (Sy.x = 0,48 kcal·min-1), 45° inclined leg press (Sy.x = 0,54 kcal·min-1), leg extension (Sy.x = 0,59 kcal·min-1), horizontal bench press (Sy.x = 0,47 kcal·min-1), 45° inclined bench press (Sy.x = 0,54 kcal·min-1), lat pull down (Sy.x = 0,28 kcal·min-1), triceps extension (Sy.x = 0,08 kcal·min-1) and biceps curl (Sy.x = 0,13 kcal·min-1). We conclude that during low-intensity resistance exercises it is possible to estimate aerobic energy cost by wearable heart rate monitors with errors below 10% in healthy young trained males.This research was supported by Norte Portugal Regional Operational Programme (NORTE 2020), through Portugal 2020 and the European Regional Development Fund, NanoSTIMA, NORTE-01-0145- FEDER-000016 to VMR. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.info:eu-repo/semantics/publishedVersio

Three-Months of Neuromotor Fitness Program Affect the Body Composition and Physical Performance in Untrained Women

International Journal of Exercise Science 12(4): 1346-1354, 2019. The purpose of this study was to investigate the effect of three months of neuromotor fitness on body composition and physical performance in untrained women. Nine untrained women (age: 38.1 ± 6.9 years; total body mass: 79.3 ± 10.7 kg; height: 161.5 ± 3.9 cm; body mass index: 30.4 ± 4.1) participated in the present study. Subjects attended the laboratory on twenty-seven occasions during a three-month period at least forty-eight hours in between sessions. Sessions 1 and 2 were used to measure morphology and body composition, and to familiarize all subjects with the experimental procedure and physical performance tests (muscle power, balance, muscular endurance, and flexibility). During sessions 3 to 26, all exercises were performed twice a week during 60-min in each session. All exercises were divided into three different circuit programs composed by12 stations with one-min exercise and a passive recovery of thirty-sec. There were significant decreases (p \u3c 0.005) for circumference in the right and left arm, pectoral, waist, abdomen, hip, and right and left calf. There were significant increases in lean body mass (p \u3c 0.005) and total body weight (p \u3c 0.005). There were significant decreases for body mass index (p \u3c 0.005), fat mass (p \u3c 0.005), and fat percentage (p \u3c 0.05). There were significant decreases (p \u3c 0.005) for skinfold in triceps, pectoral, subaxilar, shoulder blade, abdomen, hip, and thigh. There were significant increases for power test (p \u3c 0.005), muscular endurance test (p \u3c 0.005), and functional test (p \u3c 0.005). There were no significant differences for flexibility (p \u3c 0.005). The neuromotor fitness program affects the body composition and increases the physical performance in untrained women