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1.
J Sport Rehabil ; 32(3): 346-351, 2023 Mar 01.
Artigo em Inglês | MEDLINE | ID: mdl-36689996

RESUMO

CONTEXT: One of the primary training variables, although often overlooked, is recovery level achieved before starting subsequent training sessions. To find a more practical measurement that is consonant with the daily training routine, the Perceived Recovery Status (PRS) scale is proposed. In this perspective, the present study aimed to translate and culturally adapt the PRS scale into Brazilian Portuguese. DESIGN: This was a clinical measurement. METHODS: The cross-cultural translation was performed according to guidelines. Linguistic validation consisted of 5 stages: forward translation, translation synthesis, back translation, analysis of inconsistencies, and cognitive debriefing. RESULTS: During forward translation, different interpretations were obtained from the 2 translators (versions V1 and V2). Supported by an expert committee, a combined version (V3) was obtained from V1 and V2. During back translation, different interpretations were obtained from the 2 translators (versions V4 and V5). Discrepancies, applicability, and cultural equivalence were documented and analyzed by the expert committee participating in the cross-cultural translation procedure. During the cognitive debriefing, a group of 5 Brazilian people from the general population were asked to participate in a cognitive debriefing to assess the comprehensibility of the translated items. CONCLUSIONS: The PRS was translated and culturally adapted to Brazilian Portuguese (PRS-Brasil).


Assuntos
Comparação Transcultural , Traduções , Humanos , Brasil , Inquéritos e Questionários , Tradução
2.
J Strength Cond Res ; 36(6): 1648-1654, 2022 Jun 01.
Artigo em Inglês | MEDLINE | ID: mdl-35622110

RESUMO

ABSTRACT: Botelho, R, Abad, CCC, Spadari, RC, Winckler, C, Garcia, MC, and Guerra, RLF. Psychophysiological stress markers during preseason among elite female soccer players. J Strength Cond Res 36(6): 1648-1654, 2022-This study aimed to investigate changes and correlations between mood states and various physiological stress markers after a 7-week preseason period among elite female soccer players. Twenty-four elite female soccer players participated in this study (26.4 ± 3.7 years). Their internal training load, mood states, day and evening salivary testosterone and cortisol concentrations, blood creatine kinase concentration (CK), and heart rate variability (HRV) were assessed during the first week of preseason (PRE), and again 7 weeks after a systematic training period (END). After the preseason, there were significant increases in subject negative mood scales (p ≤ 0.03; Effect Size [ES] > 0.60), total mood scores (p = 0.01; QI = 100/0/0; ES = 1.32), day and evening testosterone and cortisol concentrations (p ≤ 0.03; ES > 0.54), and CK concentrations (p = 0.01; QI = 100/0/0; ES = 1.54). Correlations were found between cortisol and tension (r = 0.53 and 0.60; p ≤ 0.02), cortisol and confusion (r = 0.75; p = 0.01), and cortisol and the LF/HF index of HRV (r = -0.52; p = 0.04). Mood states (except vigor), salivary testosterone, and cortisol concentrations, as well as CK, showed significant changes after a 7-week systematic training system. The cortisol was the factor most highly related to various mood states (including tension and confusion), and with the HRV indices. Coaches and researchers can use these data to design, monitor, and control soccer training programs, in particular throughout the preseason period.


Assuntos
Atletas , Hidrocortisona , Futebol , Estresse Fisiológico , Estresse Psicológico , Adulto , Atletas/psicologia , Biomarcadores/análise , Biomarcadores/sangue , Creatina Quinase/sangue , Feminino , Frequência Cardíaca/fisiologia , Humanos , Hidrocortisona/análise , Estresse Ocupacional/fisiopatologia , Estresse Ocupacional/psicologia , Psicofisiologia , Saliva/química , Futebol/fisiologia , Futebol/psicologia , Estresse Fisiológico/fisiologia , Estresse Psicológico/fisiopatologia , Estresse Psicológico/psicologia , Testosterona/análise , Adulto Jovem
3.
Adapt Phys Activ Q ; 37(4): 508-517, 2020 10 01.
Artigo em Inglês | MEDLINE | ID: mdl-32963126

RESUMO

This study aimed to investigate the association between the optimum power load in the bench press (BP), shoulder press (SP), and prone bench pull (PBP) exercises and acceleration (ACC) and speed performances in 11 National Team wheelchair basketball (WB) players with similar levels of disability. All athletes were previously familiarized with the testing procedures that were performed on the same day during the competitive period of the season. First, athletes performed a wheelchair 20-m sprint assessment and, subsequently, a maximum power load test to determine the mean propulsive power (MPP) in the BP, SP, and PBP. A Pearson product-moment correlation was used to examine the relationships between sprint velocity (VEL), ACC, and the MPP in the three exercises. The significance level was set as p < .05. Large to very large significant associations were observed between VEL and ACC and the MPP in the BP, SP, and PBP exercises (r varying from .60 to .77; p < .05). The results reveal that WB players who produce more power in these three exercises are also able to accelerate faster and achieve higher speeds over short distances. Given the key importance of high and successive ACCs during wheelchair game-related maneuvers, it is recommended that coaches frequently assess the optimum power load in BP, SP, and PBP in WB players, even during their regular training sessions.


Assuntos
Aceleração , Desempenho Atlético , Basquetebol , Paratletas , Cadeiras de Rodas , Adolescente , Adulto , Fenômenos Biomecânicos , Brasil , Feminino , Humanos , Masculino
4.
Int J Sport Nutr Exerc Metab ; 29(6): 589-595, 2019 Nov 01.
Artigo em Inglês | MEDLINE | ID: mdl-31034250

RESUMO

This study aimed to assess the diet quality of Brazilian Paralympic track-and-field team sprinters and its variation between days. All sprinters (n = 28) were invited, and 20 (13 men and seven women) accepted the invitation consisting of 13 athletes with visual impairment, four with cerebral palsy, and three with limb deficiency. The dietary intake was recorded by photographic register on four consecutive days, and diet quality was determined using a revised version of the Healthy Eating Index for the Brazilian population. Physical activity was assessed using an accelerometer, and metabolic unit information was used to classify exercise intensity. Variance Analysis Model and Bonferroni multiple comparisons were used to assess relationships between variables. The correlations between variables used Pearson linear correlation coefficient. The results show that revised version of the Healthy Eating Index score was classified as "needs to be modified" for all athletes. The maximum score for the components "Whole fruits," "Total vegetables," and "Dark green and orange vegetables and legumes" was achieved by 23.1% and 14.3%, 7.7% and 14.3%, and 46.2% and 57.8% of male and female athletes, respectively. Only 38.5% of the male athletes achieved the maximum score for the "Total cereal" component. Female athletes achieved higher scores than male athletes for the "Milk and dairy products" component (p = .03). Intake of whole grain cereals, dairy products, vegetables, and whole fruits needs modifications to improve adequate intake of vitamins and antioxidants, highlighting the need of continuous actions of nutrition education for this population.


Assuntos
Dieta/estatística & dados numéricos , Ingestão de Energia , Avaliação Nutricional , Paratletas , Adolescente , Adulto , Brasil , Feminino , Humanos , Masculino , Corrida , Adulto Jovem
5.
J Strength Cond Res ; 31(3): 743-749, 2017 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-27379958

RESUMO

Loturco, I, Nakamura, FY, Winckler, C, Bragança, JR, da Fonseca, RA, Filho, JM, Zaccani, WA, Kobal, R, Cal Abad, CC, Kitamura, K, Pereira, LA, and Franchini, E. Strength-power performance of visually impaired paralympic and olympic judo athletes from the brazilian national team: a comparative study. J Strength Cond Res 31(3): 743-749, 2017-The aim of this study was to compare the muscle power and maximal isometric strength capacities of Olympic and visually impaired Paralympic judo athletes. Twenty-eight elite judo athletes (7 men and 7 women per group) from the permanent Brazilian National Paralympic and Olympic teams took part in this study. After a specific warm-up, the athletes performed loaded jump squat (JS), bench press (BP), and standing barbell row (SBR) exercises to determine their values of maximum mean propulsive power (MPP) in these respective exercises. The maximal isometric strength (MIS) was also determined for both upper and lower limbs, through the use of BP and half-squat (HS) exercises. Finally, the jumping ability was assessed using unloaded squat jump (SJ). The magnitude-based inference was used to compare the groups. The Olympic judo athletes presented a likely higher SJ height than the Paralympic athletes. The Olympic group presented almost certainly higher MPP in the loaded JS and in the SBR exercises and likely higher MPP in the BP exercise. Importantly, in the MIS assessments the differences between groups in the HS and BP exercises were rated as unclear. In conclusion, our results showed that both Olympic and Paralympic judo athletes present similar levels of maximal isometric strength, but muscle power performance is superior in Olympic athletes.


Assuntos
Atletas , Desempenho Atlético/fisiologia , Força Muscular/fisiologia , Treinamento Resistido/métodos , Pessoas com Deficiência Visual , Adolescente , Adulto , Brasil , Estudos Transversais , Feminino , Humanos , Contração Isométrica/fisiologia , Extremidade Inferior/fisiologia , Masculino , Artes Marciais/fisiologia , Adulto Jovem
6.
Int J Sport Nutr Exerc Metab ; 26(4): 330-7, 2016 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-26696651

RESUMO

UNLABELLED: To compare basal metabolic rate (BMR) predicted by different equations with measured BMR of the Brazilian paralympic track & field team aiming to verify which of these equations is best suited for use in this group. METHOD: 19 male and 11 female athletes grouped according to functional classification (vision impairment-VI, limb deficiency-LD, and cerebral palsy-CP) had their BMR measured by indirect calorimetry and compared with values predicted by different equations: Cunningham, Owen, Harris-Benedict, FAO/OMS, Dietary Reference Intakes, and Mifflin. Body composition data were obtained by skinfold measurements. Results were reported as mean and standard deviation and analyzed using the Wilcoxon test and Pearson's Correlation Coefficient. The Root Mean Squared Prediction Error (RMSPE) was calculated to identify the similarity between the estimated and predicted BMR. RESULTS: Mean measured BMR was 25 ± 4.2, 26 ± 2.4, and 26 ± 2.7 kcal/kg of fat free mass/day for VI, LD, and CP, respectively. Owen's equation had the best predictive performance in comparison with measured BMR for LD and CP athletes, within 104 and 125 kcal/day, while Mifflin's equation predicted within 146 kcal/day for VI athletes. CONCLUSION: for this specific group of athletes the Owen and Mifflin equations provided the best predictions of BMR.


Assuntos
Atletas , Metabolismo Basal , Atletismo , Adulto , Composição Corporal , Índice de Massa Corporal , Peso Corporal , Brasil , Calorimetria Indireta , Estudos Transversais , Ingestão de Energia , Feminino , Humanos , Masculino , Necessidades Nutricionais , Estado Nutricional , Adulto Jovem
7.
Adapt Phys Activ Q ; 33(4): 311-323, 2016 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-27874306

RESUMO

This study compared the physical performance of Paralympic sprinters with visual impairments (PSVI) and their guides in jump and sprint tests. Ten PSVI and guides executed squat jumps (SJ), countermovement jumps (CMJ), horizontal quintuple right/left-leg jumps (QR/QL), decuple jumps (DEC), and 50-m-sprint tests. The guides were superior to the PSVI in SJ (35.9 ± 6.3 vs 45.6 ± 3.2 cm), CMJ (38.5 ± 6.2 vs 46.7 ± 4.0 cm), QR (9.2 ± 1.9 vs 12.7 ± 1.0 m), QL (9.4 ± 1.9 vs 13.1 ± 0.8 m), DEC (21.0 ± 3.3 vs. 27.2 ± 1.7 m), and 50-m sprints (8.4 ± 0.4 vs 7.6 ± 0.5 m/s). The average differences between the PSVI and guides in the sprint tests was 10%, range 1-24%. Therefore, substantial differences in sprinting speed (in favor of the guides) between the peers were observed. Coaches should develop strategies to train the guides to improve their muscle-power performance.


Assuntos
Desempenho Atlético/fisiologia , Corrida/fisiologia , Pessoas com Deficiência Visual , Brasil , Teste de Esforço , Feminino , Humanos , Masculino , Exercício Pliométrico , Adulto Jovem
8.
J Sports Med Phys Fitness ; 64(8): 775-783, 2024 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-38602035

RESUMO

BACKGROUND: Due to the increase in the number of Parabadminton (PBd) athletes and the lack of scientific knowledge of the sport, it is important to evaluate performance variables in different game stimuli. Thus, this study sought to examine the physiological and metabolic responses in a simulated effort protocol in PBd athletes. METHODS: Forty-seven volunteers (WH1=7; WH2=9; SL3=8; SL4=9; SU5=6; SH6=8) performed a simulated effort protocol, consisting of 2 blocks of activities (1st change of direction + 1st simulated effort; 2nd change of direction + 2nd simulated effort). Peak and average oxygen consumption (VO2peak and VO2avg), peak, percentage, and average heart rate (HRmax, %HRmax, and HRavg), percentage of carbohydrates and lipids contributions (%CARB and %FAT), and average and total energy expenditure (EEavg and EEtotal) were evaluated. The data was compared between protocol stages, functional classes (FCs), and court size. It was adopted P<0.05. RESULTS: Differences were found between the stages of the protocol in VO2peak (P=0.0008), VO2avg (P=0.0004); HRmax (P<0.0001); %HRmax (P=0.0001), HRavg (P=0.0001), %CARB (P=0.0001), %FAT (P=0.0001), EEavg (P=0.0002), and EEtotal (P=0.008). Among FCs, SL4 athletes were superior to WH1 athletes for VO2peak (P=0.075), VO2avg (P=0.022), EEavg (P=0.011), and EEtotal (P=0.022). Athletes who completed protocol in the full court were greater than half court for VO2peak (P<0.001), VO2avg (P<0.001), %HRmax (P=0.032), HRavg (P=0.018), %CARB (P=0.022), %FAT (P=0.022), and EEavg (P=0.016). CONCLUSIONS: PBd athletes belonging to higher FCs (4, 5, and 6) and who cover greater distances on the court exhibit physiological and metabolic responses under greater influence of the type of disability.


Assuntos
Metabolismo Energético , Frequência Cardíaca , Consumo de Oxigênio , Humanos , Frequência Cardíaca/fisiologia , Consumo de Oxigênio/fisiologia , Masculino , Metabolismo Energético/fisiologia , Adulto Jovem , Esportes com Raquete/fisiologia , Adulto , Desempenho Atlético/fisiologia , Atletas , Feminino
9.
Am J Phys Med Rehabil ; 103(8): 747-752, 2024 08 01.
Artigo em Inglês | MEDLINE | ID: mdl-38206584

RESUMO

OBJECTIVE: The first objective is to examine the age-related trajectory of competitive performance and the age at peak competitive performance in wheelchair rugby players at the Paralympic Games. Another objective is to verify age correlations with performance over the years for each class. DESIGN: This is a retrospective cohort study. RESULTS: Data were collected from the official results books of the Paralympic games. The mean age (SD) of the 267 players and 448 analyzed data from all Paralympic games (from Sidney 2004 to Tokyo 2020) across all classes was 32.8 (6.4) yrs, and the age at peak competitive performance was 30.6 (7.4) yrs. Each class had no statistical difference in age at peak competitive performance. In addition, there was no significant correlation between age and performance within classes or across all Paralympic games. CONCLUSIONS: The findings indicate that wheelchair rugby players' age at peak competitive performance is 30.6 yrs, which remains consistent across all classes. There is no statistical correlation between age and performance in wheelchair rugby. These findings significantly affect effective talent identification and athlete development programs. This impact ensures that athletes receive the necessary support to reach their maximum potential while avoiding the pitfalls of underestimating or overestimating their stages of development.


Assuntos
Desempenho Atlético , Futebol Americano , Cadeiras de Rodas , Humanos , Estudos Retrospectivos , Adulto , Desempenho Atlético/fisiologia , Masculino , Fatores Etários , Pessoas com Deficiência , Esportes para Pessoas com Deficiência/fisiologia , Adulto Jovem , Paratletas , Feminino
10.
Am J Phys Med Rehabil ; 103(2): 172-180, 2024 Feb 01.
Artigo em Inglês | MEDLINE | ID: mdl-37026871

RESUMO

OBJECTIVE: This study aimed to explore the profile of athletes with a vision impairment who compete in three Paralympic sports (goalball, vision impairment judo, and blind football). DESIGN: Descriptive and association analyses of the vision impairment athletes' profile were conducted. RESULTS: The typical athlete profile was a male (65.1%), aged 26-34 yrs (39.7%), from Europe (38.8%), representing a country with a high income (46.1%), and was diagnosed with a retinal-related ocular pathology (38.9%). In all three sports, the ages of the athletes were similar. In goalball, most athletes were from Europe, represented countries with a high income, and were diagnosed with retinal-, globe-, or neurological-related pathologies. In vision impairment judo, the majority of athletes were from Asia, represented countries with an upper middle income, and were diagnosed with retinal-, global-, or neurological-related pathologies. In blind football, most athletes were from Europe, represented countries with an upper middle income, and were diagnosed with retinal-, neurological-related ocular pathologies, or glaucoma. CONCLUSIONS: The homogeneity of the athletes' profile suggests that an effort is needed to target other parts of the vision impairment population to take part in vision impairment sports. Differences in the athletes' profiles across the sports provide information that may be useful for sport-specific talent identification.


Assuntos
Futebol Americano , Artes Marciais , Humanos , Masculino , Atletas , Demografia
11.
Percept Mot Skills ; 131(4): 1291-1307, 2024 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-38669451

RESUMO

Improvements in race times for male and female Para canoe athletes across different sports classes have led to a reduction in relative differences between classes over time. However, there is a lack of research examining the comparative developmental trajectories between high-performance Paralympic (PCS) and Olympic (OCS) canoe sprint. In this study, we compared the developmental trajectories of 200-meter kayak performances among PCS and OCS athletes. In total, we analyzed 628 race results obtained from public online databases, for nine competitions between 2015 and 2023. Race times were reduced over the years except in specific sports classes (KL3-M, K1-M, and K1-F; KL: Kayak Level, M: male, F: female), with a poor positive correlation (r = 0.17 to 0.33) between time and the years. For the remaining sports classes, these correlations ranged from poor to fair (r = -0.58 to -0.13). OCS K1 athletes outperformed their Paralympic counterparts. Among Paralympic classes, KL1 had slower times than KL2 and KL3 (p ≤ .05), with KL2 times significantly lower than KL3 in the female category. OCS athletes exhibited less variability in race times compared to PCS athletes. In the male category, there were no significant differences in the coefficients of variation (CV) and amplitude of race times between sport classes, except for KL1-M, which had a larger CV than K1 (p ≤ .05). In the female category, the CV and amplitude of race times were significantly higher in KL1-F compared to KL3-F and K1-F. OCS times remained stable from 2015, with KL3-M following a similar trend. PCS displayed greater race time variability, particularly in higher impairment classes, notably KL1. This underscores the existence of distinct developmental stages within the canoe sprint modality, particularly emphasizing the early developmental phase of KL1. It also provides valuable insights for coaches and sports selection, especially concerning athletes with more severe impairments, including those in Rehabilitation Centers and during athlete recruitment.


Assuntos
Desempenho Atlético , Humanos , Feminino , Masculino , Desempenho Atlético/fisiologia , Desempenho Atlético/estatística & dados numéricos , Esportes Aquáticos/fisiologia , Paratletas/classificação , Adulto , Comportamento Competitivo/fisiologia , Esportes para Pessoas com Deficiência/fisiologia
12.
Braz Oral Res ; 38: e074, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-39109770

RESUMO

The aim of this study was to evaluate whether polymorphisms in SOD2 and SOD3 genes modulate the oral health-related quality of life (OHRQoL) of Para athletes with dental caries experience. The cross-sectional study included 264 Para athletes (143 in athletics, 61 in weightlifting and 60 in swimming). A trained and calibrated team recorded the decayed, missing and filled teeth index (DMFT). The Brazilian version of the Oral Health Impact Profile (OHIP-14) was used to measure OHRQoL. Genomic DNA was extracted from the athletes' saliva, and genetic polymorphisms in the SOD2 (rs5746136 and rs10370) and SOD3 (rs2855262 and rs13306703) genes were analyzed by real-time polymerase chain reaction. Univariate and multivariate analyses were performed. A multivariate General Linear Model analysis, adjusted for sex, revealed that the SOD3 gene polymorphism (rs2855262) had a significant effect on the psychological disability domain [codominant (p = 0.045) and recessive (p=0.038) models]. The SOD2 gene polymorphism (rs5746136) had a significant effect on the total OHIP-14 score [dominant model (p = 0.038)] and the psychological discomfort [dominant model (p = 0.034)] and physical disability [codominant model (p=0.037)] domains. Presence of the SOD2 rs10370 polymorphism led to statistical differences in the total score [codominant (p = 0.026) and dominant (p = 0.023) models] and the handicap domain scores [codominant (p = 0.027) and dominant (p = 0.032) models]. Polymorphisms of the SOD2 and SOD3 genes may be important biomarkers of OHRQoL in Para athletes with dental caries experience.


Assuntos
Atletas , Saúde Bucal , Qualidade de Vida , Superóxido Dismutase , Adolescente , Adulto , Feminino , Humanos , Masculino , Adulto Jovem , Análise de Variância , Atletas/psicologia , Atletas/estatística & dados numéricos , Brasil , Estudos Transversais , Cárie Dentária/genética , Índice CPO , Polimorfismo Genético/genética , Polimorfismo de Nucleotídeo Único , Reação em Cadeia da Polimerase em Tempo Real , Valores de Referência , Saliva/química , Estatísticas não Paramétricas , Superóxido Dismutase/genética
13.
Br J Sports Med ; 46(2): 150-4, 2012 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-21173008

RESUMO

OBJECTIVE: The objective of this study was to evaluate the sleep quality, sleepiness, chronotype and the anxiety level of Brazilian Paralympics athletes before the 2008 Beijing Paralympic Games. DESIGN: Cross-sectional study. Setting Exercise and Psychobiology Studies Center (CEPE) and Universidade Federal de São Paulo, an urban city in Brazil. PARTICIPANTS: A total of 27 Paralympics athletes of both genders (16 men and 11 women) with an average age of 28±6 years who practised athletics (track and field events) were evaluated. MAIN OUTCOME MEASURES: Sleep quality was evaluated using the Pittsburgh Scale and the Epworth Sleepiness Scale to evaluate sleepiness. Chronotype was determined by the Horne and Östberg questionnaire and anxiety through the State-Trait Anxiety Inventory. The evaluations were performed in Brazil 10 days before the competition. RESULTS: The study's results demonstrate that 83.3% of the athletes that presented excessive daytime sleepiness also had poor sleep quality. The authors noted that 71.4% were classified into the morning type and 72% of the athletes who presented a medium anxiety level also presented poor sleep quality. Athletes with poor sleep quality showed significantly lower sleep efficiency (p=0.0119) and greater sleep latency (p=0.0068) than athletes with good sleep quality. Athletes who presented excessive daytime sleepiness presented lower sleep efficiency compared to non-sleepy athletes (p=0.0241). CONCLUSIONS: The authors conclude that the majority of athletes presented poor sleep quality before the competition. This information should be taken into consideration whenever possible when scheduling rest, training and competition times.


Assuntos
Atletas/estatística & dados numéricos , Ritmo Circadiano/fisiologia , Pessoas com Deficiência/estatística & dados numéricos , Transtornos do Sono-Vigília/epidemiologia , Sono/fisiologia , Atletismo/psicologia , Adulto , Ansiedade , Atletas/psicologia , Brasil , Estudos Transversais , Feminino , Humanos , Masculino , Inquéritos e Questionários , Escala de Ansiedade Frente a Teste , Atletismo/estatística & dados numéricos
14.
Int J Sports Physiol Perform ; 17(5): 787-790, 2022 05 01.
Artigo em Inglês | MEDLINE | ID: mdl-35045395

RESUMO

PURPOSE: To compare the strength, speed, and power performance of elite sprinters with and without visual impairment. METHODS: Twelve elite able-bodied sprinters and 15 Paralympic sprinters with visual impairment took part in this study. Sprinters from both groups performed the following tests: squat and countermovement jumps, maximum bar-power output in the half-squat and jump-squat exercises, and 60-m sprint. The differences between groups in all variables examined were analyzed using the independent t test. RESULTS: Olympic sprinters revealed better performances in all tests when compared with Paralympic sprinters with visual impairment (effect sizes ranging from 1.29 to 9.04; P < .001). Differences of ∼32% and ∼20% were found for the half-squat and loaded and unloaded vertical jumps, respectively. Smaller differences (from ∼8% to ∼11%) were obtained in linear sprint performance. CONCLUSIONS: Between-groups differences peaked at low-velocity exercises (eg, âˆ¼32% in the half-squat) and decreased as movement velocity and specificity increased (eg, âˆ¼8% at 60-m sprint). Thus, the greatest differences between Olympic and Paralympic sprinters seem to be related to their ability to apply force at low movement velocities. Coaches are encouraged to work on all sprinting phases and across the entire force-velocity spectrum, bearing in mind that improvements in strength capacity will possibly lead to increased sprint performance in Paralympic sprinters with visual impairment, especially in the acceleration phase of sprinting.


Assuntos
Desempenho Atlético , Corrida , Teste de Esforço , Humanos , Força Muscular , Transtornos da Visão
15.
Spec Care Dentist ; 41(6): 679-687, 2021 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-34245174

RESUMO

AIMS: To assess the impact of dental caries on OHRQoL in Para athletes and to evaluate whether interleukin 1 alpha (IL1A) (rs17561, rs1304037), interleukin 10 (IL10) (rs1800871), and interleukin 1 receptor antagonist (IL1RN) (rs9005) genes are potential biomarkers for OHRQoL in Para athletes. MATERIALS AND METHODS: A cross-sectional study consisting of 264 Para athletes (athletics, 143; powerlifting, 61; and swimming, 60) aged between 14 and 79 years was conducted. The decayed-missing-filled teeth index was used for the clinical evaluation. The Brazilian version of the Oral Health Impact Profile (OHIP-14) was used to measure the OHRQoL. Genomic DNA was extracted from the saliva. Genetic polymorphisms were analyzed by real-time polymerase chain reaction. Descriptive and bivariate analyses were performed. RESULTS: The overall mean OHIP-14 score observed was 6.24 (standard deviation, 7.05) and 10.03 (standard deviation, 8.11) in Para athletes with no caries experience and with caries experience, respectively (p = .002). Para athletes with the A allele in the IL1A gene (rs17561), in a dominant model, had a significantly higher risk of poor psychological discomfort than those with the other allele (p = .03). CONCLUSION: Dental caries affected the OHRQoL in Para athletes. IL1A genetic polymorphisms were the potential biomarkers for OHRQoL in Para athletes.


Assuntos
Cárie Dentária , Interleucina-1alfa/genética , Saúde Bucal , Paratletas , Adolescente , Adulto , Idoso , Biomarcadores , Estudos Transversais , Cárie Dentária/genética , Humanos , Pessoa de Meia-Idade , Polimorfismo Genético , Qualidade de Vida , Inquéritos e Questionários , Adulto Jovem
16.
Spec Care Dentist ; 41(6): 700-706, 2021 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-34131935

RESUMO

AIMS: The present study investigated if recurrent manifestation of oral herpes lesions is associated with other factors and impacts the oral health-related quality of life in para-athletes. METHODS AND RESULTS: The studied population was composed of a convenience sample of 370 Brazilian para-athletes. All included individuals answered questionnaires and were submitted to an oral examination. A self-reported questionnaire addressed demographic and oral health data, including the recurrent manifestation of oral herpes lesions. The Oral Health Impact Profile was also applied in its reduced version with 14 questions (OHIP-14). The population was categorized according to results from previous competitions into a high-performance level, medium-performance level, and regional-performance level. Chi-square or Fisher's exact tests, odds ratio calculation, logistic regression analysis, and t-tests were performed (α = 5%). Sixty (16.2%) para-athletes reported recurrent manifestations of oral herpes lesions. Para-athletes with sleep bruxism (p = .007) and awake bruxism (p = .048) had a higher chance of reporting oral herpes lesions. Type of breathing was also associated with oral herpes lesions (p = .031). The OHIP-14 mean distribution among the groups was not statistically significant (p > .05). CONCLUSION: Bruxism and type of breathing were associated with self-reported oral herpes lesions in Brazilian para-athletes.


Assuntos
Bruxismo , Paratletas , Bruxismo do Sono , Brasil/epidemiologia , Humanos , Saúde Bucal , Qualidade de Vida , Inquéritos e Questionários
17.
Spec Care Dentist ; 41(4): 505-511, 2021 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-33749857

RESUMO

AIMS: This study aimed to investigate the association of the salivary pH and parameters of oral health in Brazilian para-athletes. METHODS AND RESULTS: The sample was composed of 271 Brazilian para-athletes (147 athletics, 61 powerlifting, and 63 swimming); mean age was 31.2 ± 11.7 years. Data collected during anamnesis, clinical examination, and saliva collection revealed that salivary pH was different among sports (p = .01) and tends to decrease as age and body mass index (BMI) increase (p = .026, .027, respectively). The mean decay missing filled teeth was 8.8 (±0.57), but there is no correlation with salivary pH (R2  = -0.0852; CI 95%, -0.215-0.047; p = .194) as habits of grinding, clenching teeth, or bruxism was not associated with salivary pH (p = .317, .932, and .444, respectively). Regarding breathing, para-athletes that have buccal breathing had significantly higher salivary pH (p = .04). This data were confirmed by multiple logistic regression (p = .05). Open bite, lip seal, geographic or fissured tongue also were not associated with variation of salivary pH (p > .05). CONCLUSIONS: This study provided evidence of an association between salivary pH with age, BMI, type of breathing, and type of sport practiced by the para-athletes.


Assuntos
Paratletas , Saliva , Adulto , Brasil , Humanos , Concentração de Íons de Hidrogênio , Saúde Bucal , Adulto Jovem
20.
Int J Sports Physiol Perform ; 14(4): 531-535, 2019 Apr 01.
Artigo em Inglês | MEDLINE | ID: mdl-30204509

RESUMO

PURPOSE: To examine the relationships between different loading intensities and movement velocities in the bench-press exercise (BP) in Paralympic powerlifters. METHODS: A total of 17 national Paralympic powerlifters performed maximum dynamic strength tests to determine their BP 1-repetition maximum (1RM) in a Smith-machine device. A linear position transducer was used to measure movement velocity over a comprehensive range of loads. Linear-regression analysis was performed to establish the relationships between the different bar velocities and the distinct percentages of 1RM. RESULTS: Overall, the correlations between bar velocities and %1RM were strong over the entire range of loads (R2 .80-.91), but the precision of the predictive equations (expressed as mean differences [%] between actual and predicted 1RM values) were higher at heavier loading intensities (∼20% for loads ≤70% 1RM and ∼5% for loads ≥70% 1RM). In addition, it seems that these very strong athletes (eg, 1RM relative in the BP = 2.22 [0.36] kg·kg-1, for male participants) perform BP 1RM assessments at lower velocities than those previously reported in the literature. CONCLUSIONS: The load-velocity relationship was strong and consistent in Paralympic powerlifters, especially at higher loads (≥70% 1RM). Therefore, Paralympic coaches can use the predictive equations and the reference values provided here to determine and monitor the BP loading intensity in national Paralympic powerlifters.


Assuntos
Força Muscular , Esportes para Pessoas com Deficiência/fisiologia , Levantamento de Peso/fisiologia , Fenômenos Biomecânicos , Feminino , Humanos , Modelos Lineares , Masculino , Movimento
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