Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 25
Filtrar
1.
J Sci Med Sport ; 27(7): 493-498, 2024 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-38604817

RESUMO

OBJECTIVES: To investigate the impact that the structure and combination of athlete classification within lineups has on possession outcome in Wheelchair Rugby (WR). DESIGN: Retrospective. METHODS: Analysis was conducted using data from all 18 WR matches from the 2020 Tokyo Paralympic Games. Pearson's chi-squared analysis was conducted to investigate the effect of lineup structures on performance and a nested generalised logistic mixed model (GLMM) was fitted to the data to investigate the association between independent variables and the outcome of possessions. Specifically, the impact of offensive and defensive lineup structures on possession outcome and whether the offensive and defensive lineup structures matching or not impact possession outcome. RESULTS: There was a significant relationship between the offensive lineup structure and possession outcome. Balanced lineups had greater turnovers than expected. Balanced lineups also had fewer tries than expected, whilst high-low lineups had fewer than expected turnovers. There were no significant associations between the defensive lineup structure and possession outcome. Furthermore, no significant associations were found between whether the structure of the offensive and defensive lineup matched (or not) and the possession outcome. CONCLUSIONS: The findings suggest that the offensive team's lineup structure plays a more prominent role in impacting possession outcome, compared to the defensive team's lineup structure. The present results provide valuable insights into WR performance for coaches, practitioners, and researchers.


Assuntos
Desempenho Atlético , Futebol Americano , Cadeiras de Rodas , Humanos , Estudos Retrospectivos , Desempenho Atlético/classificação , Pessoas com Deficiência/classificação , Esportes para Pessoas com Deficiência/classificação
2.
Front Sports Act Living ; 5: 1075565, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37152110

RESUMO

Wheelchair rugby was developed in Canada in the 1970s and named an official Paralympic sport in 2000. Wheelchair rugby is one of the few Paralympic or Olympic sports that includes mixed-sex participation. Where historically women with disabilities have had limited access to elite sporting competition, wheelchair rugby provides the opportunity for women to represent themselves as competitive and physical beings, capable of the physicality and aggressive nature of the sport alongside men. This project looks to fill the gap in research considering women's experiences in these potentially highly gendered sport settings. This study uses a thematic analysis approach to explore female athletes' lived experiences of participation in wheelchair rugby. Five provincial athletes were interviewed and shared their complex experiences competing in wheelchair rugby.

3.
Scand J Med Sci Sports ; 33(8): 1531-1540, 2023 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-37183537

RESUMO

This study investigated the effect of increased rolling resistance on wheelchair sprint performance and the concomitant force-velocity characteristics. Thirteen wheelchair rugby (WCR) athletes completed five 15 s wheelchair sprints in their own rugby wheelchair on an instrumented dual-roller wheelchair ergometer. The first sprint was performed against a close to overground resistance and in each of the following sprints, the resistance increased with 80% of that resistance. A repeated-measures ANOVA examined differences between sprints. Subsequently, linear regression analyses examined the individual force-velocity relations and then, individual parabolic power output curves were modeled. Increased rolling resistance led to significantly lower velocities (-36%), higher propulsion forces (+150%) and higher power outputs (+83%). These differences were accompanied by a lower push frequency, higher push time, yet a constant recovery time and contact angle. The modeled linear regressions (R2 = 0.71 ± 0.10) between force and velocity differed a lot in slope and intercept among individual athletes. The peak of the power output parabola (i.e., the optimal velocity) occurred on average at 3.1 ± 0.6 ms-1 . These individual force-velocity profiles can be used for training recommendations or technological changes to better exploit power generation capabilities of the WCR athletes' musculoskeletal system.


Assuntos
Desempenho Atlético , Paratletas , Cadeiras de Rodas , Humanos , Rugby , Ergometria , Atletas
4.
Front Sports Act Living ; 5: 1283035, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-38239893

RESUMO

Introduction: Despite the increased interest in indoor wheelchair sports in many countries, research on the effect of floor coverings on sports performance is limited. Currently, there are no specific guidelines for covering characteristics for wheelchair sports, whether for competitive or recreational purposes. This study aimed to determine the impact of floor coverings on the biomechanical parameters of manual wheelchair propulsion for wheelchair rugby practice. Methods: Ten wheelchair rugby players performed 6 maximum-velocity sprints over 20 meters, with a 20-second recovery time between sprints, on 3 different coverings, using their personal sports wheelchairs. The coverings were: wood parquet, Gerflor TX System Endurance®, and a plastic synthetic covering (balatum). Performance and propulsion technique variables were collected using inertial measurement units (265 Hz, Kinvent, France). Additionally, rolling resistance quantification tests were conducted on each covering. Results: Rolling resistance was lowest on the wood parquet, with an average value of 3.98 ± 0.97 N. Best sprint performance was achieved on the wood parquet. The fatigue index on the parquet was significantly lower than on the balatum (p < 0.05). Discussion: Our results highlight that floor surface influences both performance and propulsion technique variables. Therefore, we recommend performing wheelchair rugby training on wood parquet to optimize performance. It is also important to consider the impact of different coverings on sprint performance when organizing player rotations to maintain a high level of competition during tournaments.

5.
Res Sports Med ; : 1-8, 2022 Dec 28.
Artigo em Inglês | MEDLINE | ID: mdl-36578156

RESUMO

Wheelchair rugby was created as part of the rehabilitation for patients with spinal cord injury. The biomechanical analysis of wheelchair propulsion (WP) in these athletes seems to be a key element to understand the reasons behind musculoskeletal injuries. This case reports study aimed to describe the electromyographic activity and kinematic parameters of the shoulder during the propulsion phases on the wheelchair in two Paralympic rugby players (A1 and A2) with spinal cord injury. Myoelectric activity (three portions of the deltoid, biceps and triceps brachii) and kinematics of the shoulder were assessed during the push (PP) and recovery (RP) phases. These variables were calculated considering ten propulsion cycles by each athlete. The results showed a different muscle activation between players, A1 described a high average amplitude of the anterior deltoid (PP = 58.44 ± 16.35%MVC; RP = 43.16 ± 13.48%MVC) in both propulsion phases, while A2 generated high average activity of triceps brachii (29.28 ± 10.63%MVC) and middle deltoid (46.53 ± 14.48%MVC), during PP and RP, respectively. At the same time, the player with a C7-T1 spinal cord injury (A2) showed a higher range of motion in the three plans, considering both propulsion phases.

6.
Front Rehabil Sci ; 3: 856904, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36188931

RESUMO

Objective: To determine the thermoregulatory responses and mobility performance of wheelchair rugby (WCR) players during international competition. Methods: Eleven male National Team WCR players volunteered for the study. Testing occurred during a four game series against international competition (temp 24.7 ± 0.7°C, relative humidity 50.1 ± 3.6%), with movement time (MT) and gastrointestinal temperature (Tgi) recorded continuously. Results: The mean maximal Tgi was 38.6 ± 0.6°C (37.9-39.7) and did not significantly differ among Low-Class, Mid-Class, and High-Class athletes (p > 0.05). Moreover, there was a strong and significant relationship between minutes (min) played per quarter of the game and change in Tgi (r = 0.36, p = 0.01). Athletes moved a total of 27:43 ± 9:40 min:seconds (s), spent a total of 15:02 ± 8.23 min:s in Zone 1 (53.5%), 8:19 ± 3:20 min:s in Zone 2 (31.7%), and 5:59 ± 1:51 min:s in Zone 3 (21.3%). There were no differences among classification in total movement time (p = 0.169) or for speed in Zone 1, Zone 2, or Zone 3 (p > 0.05). The relationship between peak forward speed and total movement time was strong (p = 0.021, r = 0.68). Conclusion: This study demonstrated that the time spent in absolute movement zones is not classification dependent, the change in core temperature is related to movement time per quarter. Furthermore, peak speeds obtained on-court were linked to overall movement time which suggests athletes should warm-up before going on court.

7.
Front Sports Act Living ; 4: 861592, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35721878

RESUMO

Introduction: In wheelchair rugby, players use either an offensive or defensive wheelchair depending on their field position and level of impairment. Performance of wheelchair rugby players is related to several parameters, however it is currently unclear if differences in performance are related to wheelchair type or no: the effect of wheelchair type on performance variables has not been evaluated. The aim of this study was to compare offensive and defensive wheelchairs on performance variables during a straight-line sprint. Methods: Thirteen able-bodied people performed two 20 m sprint trials: one with an offensive and one with a defensive wheelchair. Data were collected using inertial measurement units fixed on the wheelchair. Peak wheelchair velocities and left-right asymmetries in peak wheel velocities were measured during the acceleration and constant peak velocity phases. Sprint time, cycle frequency, and mean and maximum velocity were calculated over the entire sprint. Results: The peak velocities of the first 2 pushes (acceleration phase) were significantly higher with the defensive than the offensive wheelchair (p < 0.04 and p < 0.02). Mean and maximum sprint velocity were significantly higher (p < 0.03 and p < 0.04, respectively) with the defensive wheelchair. Cycle frequency and asymmetry did not differ between wheelchairs. Conclusion: Performance was higher with the defensive than the offensive wheelchair, suggesting that the frequent finding that the higher performance of offensive as compared to defensive players is not related to the use of an offensive wheelchair.

8.
Adapt Phys Activ Q ; 39(3): 303-320, 2022 Jul 01.
Artigo em Inglês | MEDLINE | ID: mdl-35303713

RESUMO

Two forms of perfectionism were examined in the present study to see whether they predicted prosocial and antisocial behaviors in sport through moral disengagement and altruism in a sample of 327 wheelchair basketball and rugby athletes (M = 33.57 years, SD = 10.51; 83% male). Using structural equation modeling, the following significant direct and indirect effects were found. First, perfectionistic strivings positively predicted perceived prosocial behaviors and altruism. Second, perfectionistic concerns negatively predicted altruism and prosocial behaviors and positively predicted moral disengagement. Third, antisocial behaviors were positively predicted by moral disengagement and altruism. Furthermore, perfectionistic concerns indirectly predicted antisocial behaviors positively through moral disengagement and negatively through altruism. Finally, perfectionistic strivings positively predicted antisocial behaviors through altruism. Results provided partial support for the role of perfectionism in predicting prosocial and antisocial behaviors through moral disengagement among athletes with a disability.


Assuntos
Basquetebol , Paratletas , Perfeccionismo , Altruísmo , Transtorno da Personalidade Antissocial , Atletas , Feminino , Humanos , Masculino , Princípios Morais
9.
Artigo em Inglês | MEDLINE | ID: mdl-35162810

RESUMO

BACKGROUND: Spinal cord injuries are one of disability in Poland and in the world. METHODS: 80 subjects with a transverse injury of the cervical spinal cord were enrolled in the study. The study group included men aged 20-50, 33.1 ± 7.5. A total of 40 (50%) of the subjects comprised the physically active group (AG)-subjects doing wheelchair sport twice a week for 90 min a day. The physically inactive group (IG) comprised 40 (50%) subjects who had not participated in any sports activities. Statistical analyses were carried out using Shapiro-Wilk W-test and Mann-Whitney U test. RESULTS: Significant differences were found between the physically active and inactive men with regard to their functionality status. The biggest differences were found for turning over (p < 0.001) and in adopting a sitting position (p < 0.001). Persons in the AG group had better results in all assessed activities. The biggest differences were observed in the field of toilet and dressing up: tooth-brushing p < 0.007 and washing the top part of the body p < 0.002. CONCLUSIONS: People participating in regular physical activity-wheelchair rugby-after spinal cord injury have a better relationship with better fitness, greater independence and a better functional status.


Assuntos
Traumatismos da Medula Espinal , Esportes , Cadeiras de Rodas , Exercício Físico , Estado Funcional , Humanos , Masculino
10.
J Sci Med Sport ; 24(8): 756-762, 2021 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-33558190

RESUMO

OBJECTIVES: To determine the effect of heat acclimatisation (HA) training on blood profile and resting cardiac function in elite athletes with spinal cord injury (SCI). DESIGN: Quasi-experimental. METHODS: Eleven athletes (10m, 1f) with SCI (C5-T3) completed a five-day isothermic HA protocol whereby gastrointestinal temperature (Tc) was elevated to and maintained at ∼38.5 degrees Celsius (°C) via intermittent exercise for sixty minutes each day. Blood samples were collected pre- and post-HA to determine changes in plasma volume (PV). Doppler ultrasound of the left-ventricular outflow tract and 2-d speckle tracking echocardiography were performed in a subset of athletes (n=5) to determine changes in indices of resting left-ventricular function and mechanics, respectively. RESULTS: Ten athletes were successfully able to raise and maintain Tc to 38.5°C. There was a non-significant increase in PV with HA training (ΔPV%: 3.0±5.4%, p=0.086). Following HA, resting HR decreased (63±4 pre-HA vs. 58±5 bpm post-HA, p=0.020), velocity time integral (21.4±2.7 vs. 23.7±3.0cm, p=0.045) and stroke volume increased (64.8±7.6 vs. 70.2±10.5mL, p=0.055). CONCLUSIONS: Our findings suggest a short-term HA protocol in athletes with SCI is safe and may induce beneficial changes in indices of resting left-ventricular function - however results are highly individualized. Future studies on HA in athletes with SCI should focus on determining mechanisms of adaptation and performance outcomes.


Assuntos
Aclimatação , Desempenho Atlético/fisiologia , Hemodinâmica , Temperatura Alta , Traumatismos da Medula Espinal/fisiopatologia , Esportes para Pessoas com Deficiência/fisiologia , Adulto , Feminino , Futebol Americano/fisiologia , Frequência Cardíaca , Humanos , Masculino , Volume Plasmático , Volume Sistólico , Fatores de Tempo , Função Ventricular Esquerda
11.
Eur J Transl Myol ; 30(1): 8902, 2020 Apr 07.
Artigo em Inglês | MEDLINE | ID: mdl-32499896

RESUMO

Wheelchair rugby is a sport ideated for individuals with cervical spinal cord injury (CSCI) which is extremely important for maintaining their neuromuscular abilities and improving their social and psychological wellbeing. However, due to the frequent changes in direction and speed it considerably stresses the players' upper limbs. 13 athletes have undergone two sports-related tests on an inertial drum bench and several kinematic parameters have been registered. Most athletes use a semi-circular pattern which is considered protective for the upper limb. With increasing speed, range of motion (ROM) increases. Release angles increment and contact angles reduce, displacing the push angle forward to increase speed. Instead, the more anterior late push angle used to increase velocity is a factor which further loads the shoulder joint. However, other factors affecting propulsion technique, such as posture and wheelchair set up should be studied to further reduce loading on the upper limb.

12.
J Sci Med Sport ; 23(6): 559-563, 2020 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-31883779

RESUMO

OBJECTIVES: The purpose of this study was to examine the validity and test-retest reliability of a battery of single-joint isometric strength tests, to establish whether the tests could be used for evidence-based classification in wheelchair rugby (WR). DESIGN: Cross-sectional. METHODS: Twenty male WR athletes with impaired arm strength and thirty able-bodied (AB) participants (15 male, 15 female) performed four isometric strength tests. Each test required three 5-s efforts and examined maximal isometric force for flexion and extension around the shoulder and elbow joint. Test validity was established by comparing differences (Cohen's effect sizes [d]) in strength between WR athletes and AB participants. Differences were also explored between male and female AB participants. Twenty AB participants returned for a second visit to establish the test-retest reliability of the test battery. RESULTS: Significantly lower force values were observed for all isometric strength measures in WR athletes compared to AB participants (p≤0.0005; d≥2.14). Female AB participants also produced significantly less force than male AB participants for all joint actions (p≤0.0005; d≥1.93). No significant differences were identified between trials for any measure of strength, with acceptable levels of test-retest reliability reported (ICCs≥0.97, SEM≤19.3N and CV≤8.4%). CONCLUSIONS: The current results demonstrated the validity of a battery of isometric strength tests, suggesting they can be used to reliably infer strength impairment in WR athletes, which is a pre-requisite when working towards evidence-based classification in Paralympic sport.


Assuntos
Braço/fisiopatologia , Futebol Americano , Contração Isométrica , Debilidade Muscular/fisiopatologia , Paratletas/classificação , Cadeiras de Rodas , Adulto , Estudos Transversais , Feminino , Humanos , Masculino , Reprodutibilidade dos Testes
13.
Front Psychol ; 10: 1734, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31417461

RESUMO

The deliberate practice framework was forwarded to account for the characteristics and developmental experiences of individuals who have acquired exceptional performance in any domain. This framework proposed that experts undergo an extensive acquisition period involving the accumulation of thousands of hours of deliberate practice while overcoming various constraints that serve as functional barriers to the achievement of expertise. Although the deliberate practice framework has been examined in the context of a range of domains, disability sport remains relatively unstudied. The purpose of this study was, therefore, to examine expert disability sport athletes to determine how well their experiences and characteristics were captured by the deliberate practice framework. Quad rugby players were asked to complete a two-part survey to report their recall of the amount of time spent in individual and team practice activities, quad rugby related activities, and daily life activities at the start of their careers and every 2 years since. These activities were then rated with respect to relevance to improving performance, effort and concentration required, and enjoyment of participation. Findings revealed that quad rugby athletes engaged in similar amounts of practice throughout their career to those observed in superior performers across domains, including musicians and expert performers in the able-bodied sport domain (e.g., M = 8,309 h at 9-10 year career mark). Contrary to the original deliberate practice framework and some of the subsequent examinations in sport, disability sport athletes did not rate the most relevant and effortful activities as either low or high on enjoyment. The unique constraints imposed on disabled athletes may reduce the likelihood that clear differences will emerge when considering affective responses such as enjoyment.

14.
Gait Posture ; 65: 151-156, 2018 09.
Artigo em Inglês | MEDLINE | ID: mdl-30558924

RESUMO

BACKGROUND: Shoulder pain is the most common complaint for wheelchair athletes. Scapular orientation and dyskinesia are thought to be associated with shoulder pathology, yet no previous studies have examined the bilateral scapula kinematics of wheelchair athletes during propulsion. RESEARCH QUESTION: To examine bilateral scapular kinematics of highly trained wheelchair rugby (WR) players and any associations with self-reported shoulder pain during everyday wheelchair propulsion. METHODS: Ten WR players (5 with shoulder pain, 5 without) performed 2 × 3-minute bouts of exercise in their everyday wheelchair on a wheelchair ergometer at two sub-maximal speeds (3 and 6 km h-1). During the final minute, 3D kinematic data were collected at 100 Hz to describe scapulothoracic motion relative to each propulsion cycle. Instantaneous asymmetries in scapular orientation between dominant and non-dominant sides were also reported. Differences in scapular kinematics and propulsion asymmetries were compared across shoulders symptomatic and asymptomatic of pain. RESULTS: An internally rotated, upwardly rotated and anteriorly tilted scapula was common during wheelchair propulsion and asymmetries ≤14° did exist, yet minimal changes were observed across speeds. Participants with bilateral shoulder pain displayed a less upwardly rotated scapula during propulsion, however large inter-individual variability in scapular kinematics was noted. SIGNIFICANCE: Scapular asymmetries are exhibited by wheelchair athletes during wheelchair propulsion, yet these were not exacerbated by increased speed and had limited associations to shoulder pain. This suggests that propulsion kinematics of highly trained athletes may not be the primary cause of pain experienced by this population.


Assuntos
Escápula/fisiopatologia , Articulação do Ombro/fisiopatologia , Dor de Ombro/etiologia , Cadeiras de Rodas/efeitos adversos , Adulto , Atletas , Fenômenos Biomecânicos , Ergometria , Futebol Americano/fisiologia , Humanos , Amplitude de Movimento Articular/fisiologia
15.
Nutrients ; 10(12)2018 Dec 11.
Artigo em Inglês | MEDLINE | ID: mdl-30544913

RESUMO

Wheelchair rugby is a rapidly growing Paralympic sport; however, research remains predominantly in the realms of physiology and biomechanics. Currently, there is little investigation into nutrition and dietary supplement use among wheelchair rugby athletes (WRA). The aim of this study was to assess the types of dietary supplements (DS) used, the prevalence of usage, and the reasons for use among WRA. The secondary aim was to report utilized and preferred sources of nutritional information among this population. A valid, reliable Dietary Supplement Questionnaire was used to report supplement use and reasons for use. Male (n = 33) and female (n = 9) WRA were recruited at a national tournament and through emailing coaches of various Canadian teams. Dietary supplement usage was prevalent as 90.9% of males and 77.8% of females reported usage within the past three months with the most regularly used supplements being vitamin D (26.2%), electrolytes (19.5%), and protein powder (19.5%). The most common reason for usage was performance. The top sources of nutrition information were dietitian/nutritionist and the internet. Further investigation into DS use is needed to help create nutritional guidelines that are accessible to WRA and athletes with disabilities in general.


Assuntos
Atletas/estatística & dados numéricos , Suplementos Nutricionais/estatística & dados numéricos , Futebol Americano , Quadriplegia , Cadeiras de Rodas , Adulto , Estudos de Coortes , Feminino , Conhecimentos, Atitudes e Prática em Saúde , Humanos , Masculino , Pessoa de Meia-Idade , Adulto Jovem
16.
Arq. ciências saúde UNIPAR ; 22(3): 145-149, Set-Dez. 2018.
Artigo em Português | LILACS | ID: biblio-915520

RESUMO

O Rugby em cadeira de rodas (RCR) é um esporte paralímpico praticado por homens e mulheres com tetraplegia decorrente de lesão na medula espinhal (LME). Nos esportes de alto rendimento o desempenho do atleta depende de preparo físico, aspectos tático e técnico. Dentre as variáveis fisiológicas importantes no controle do treinamento e na resposta aos treinos encontra-se a frequência cardíaca (FC). O presente estudo teve como objetivo verificar a intensidade da FC durante jogos de RCR. Para isso, utilizou-se do frequencímetro FIRTSBEAT modelo SPORTS Team 4.6®, para o monitoramento da FC dos atletas de RCR durante os jogos. A amostra foi composta por nove atletas homens de RCR com LME com nível de lesão acima da vértebra T6. Os resultados obtidos demonstraram que a média das FC máximas foi de 138,55 ± 17,5 bpm. A intensidade variou cerca de 77% do tempo entre Zona aeróbia 1, Zona aeróbia 2 e Zona de limiar anaeróbio, indicando uma grande oscilação, o que é esperado por se tratar de um esporte que possui características de intermitência. Conclui-se que os atletas de RCR apresentaram uma FC máxima reduzida, correspondente às encontradas na literatura, e que esses apresentaram uma variação da intensidade da FC, com predominância entre 60% a 90% da FC máxima.


Wheelchair Rugby (WR) is a Paralympic sport modality practiced by men and women with spinal cord injury (SCI). In high performance sports, the performance of the athlete depends on his physical fitness, as well as tactical and technical aspects. Heart rate (HR) features among the several essential physiological variables in the control of the training and in response to training. This study aimed to determine the HR intensity during WR matches. In order to do so, FIRSTBEAT SPORTS Team 4.6® heart rate monitors were used to monitor the HR of the WR athletes during the games. The sample consisted of nine male WR athletes with SCI with impairment level above T6. The results showed that the average maximum HR was 138 ± 17.5 bpm. Intensity varied in approximately 77% of the time between the Aerobic Zone 1, Aerobic Zone 2 and the Anaerobic Threshold Zone, presenting great oscillation. This is expected, since rugby is a sport with intermittent characteristics. It was concluded that WR athletes showed reduced HR (max), similar to the results found in literature, and presented variation in the HR intensity, with a predominance between 60% to 90% of the HR(max).


Assuntos
Pessoas com Deficiência , Futebol Americano , Frequência Cardíaca
17.
Appl Ergon ; 67: 9-25, 2018 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-29122204

RESUMO

Wheelchair rugby is a sport that has been gaining popularity with athletes with disabilities. However, as it is relatively new and not played by the masses, market specific sports-wear is not available for this sport, which impacts directly on performance and clothing satisfaction of the athletes. Therefore, the main objective of this research was to identify the problems that wheelchair rugby players face with the sports-wear they use for playing the game. The data was collected using a focus group and a questionnaire with 61 wheelchair rugby players in the United Kingdom. Based on their suggestions, on the team expertise, and on the literature, a set of design recommendations was proposed for the upper body garments (tops), lower body garments (bottoms), and gloves. The results demonstrated that the gloves currently available negatively impact on players' ability to participate with satisfactory levels of protection and comfort. Moreover, tops and bottoms also present issues, mainly in the fit and ability to regulate the core body temperature. Hence, the recommendations proposed can provide designers with key information on the specific sports-wear requirements and allow them to design and develop products that can satisfy real needs of specific end-users. This paper intends to raise awareness of the needs of sports-wear for those playing wheelchair rugby and promote the inclusivity of athletes with disabilities.


Assuntos
Atletas/psicologia , Desenho de Equipamento/psicologia , Futebol Americano/psicologia , Roupa de Proteção , Esportes para Pessoas com Deficiência/psicologia , Adolescente , Adulto , Feminino , Grupos Focais , Humanos , Masculino , Pessoa de Meia-Idade , Pesquisa Qualitativa , Reino Unido , Cadeiras de Rodas , Adulto Jovem
18.
Scand J Med Sci Sports ; 27(12): 2019-2026, 2017 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-28150870

RESUMO

In this study, we asked whether wheelchair rugby (WR) classification and competitive level influence trunk function of athletes with disabilities, in terms of seated limits-of-stability (LoS). Twenty-eight athletes were recruited from international- and national-level WR teams, with each group exhibiting marked differences in years of sports practice and training volume. Athletes were also distributed into three groups according their classification: low-point (0.5-1.5-point); mid-point (2.0-2.5-point); and high-point (3.0-3.5-point). Athletes were asked to sit on a force platform and to lean the body as far as possible in eight predefined directions. Center of pressure (COP) coordinates were calculated from the ground reaction forces acquired with the force platform. LoS were computed as the area of ellipse adjusted to maximal COP excursion achieved for the eight directions. ANOVAs reveal that LoS were not different when international- and national-level players were compared (P=.744). Nevertheless, LoS were larger in players from the high-point group than from the low-point group (P=.028), with the mid-point group being not different from both (P>.194). In summary, (i) competitive level does not impact LoS measures and (ii) LoS are remarkably distinct when comparing both extremes of the WR classification range. Our results suggest that, as a training-resistant measure, LoS could be a valid assessment of trunk impairment, potentially contributing to the development of an evidence-based WR classification.


Assuntos
Atletas/classificação , Postura , Cadeiras de Rodas , Adulto , Pessoas com Deficiência , Futebol Americano , Humanos , Masculino , Equilíbrio Postural , Tronco
19.
Int J Sports Physiol Perform ; 12(3): 275-286, 2017 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-27448391

RESUMO

Despite the growing interest in Paralympic sport, the evidence base for supporting elite wheelchair sport performance remains in its infancy when compared with able-bodied (AB) sport. Subsequently, current practice is often based on theory adapted from AB guidelines, with a heavy reliance on anecdotal evidence and practitioner experience. Many principles in training prescription and performance monitoring with wheelchair athletes are directly transferable from AB practice, including the periodization and tapering of athlete loads around competition, yet considerations for the physiological consequences of an athlete's impairment and the interface between athlete and equipment are vital when targeting interventions to optimize in-competition performance. Researchers and practitioners are faced with the challenge of identifying and implementing reliable protocols that detect small but meaningful changes in impairment-specific physical capacities and on-court performance. Technologies to profile both linear and rotational on-court performance are an essential component of sport-science support to understand sport-specific movement profiles and prescribe training intensities. In addition, an individualized approach to the prescription of athlete training and optimization of the "wheelchair-user interface" is required, accounting for an athlete's anthropometrics, sports classification, and positional role on court. In addition to enhancing physical capacities, interventions must focus on the integration of the athlete and his or her equipment, as well as techniques for limiting environmental influence on performance. Taken together, the optimization of wheelchair sport performance requires a multidisciplinary approach based on the individual requirements of each athlete.


Assuntos
Desempenho Atlético/fisiologia , Condicionamento Físico Humano , Esportes para Pessoas com Deficiência/fisiologia , Regulação da Temperatura Corporal , Aptidão Cardiorrespiratória/fisiologia , Tolerância ao Exercício/fisiologia , Humanos , Músculos Respiratórios/fisiologia , Equipamentos Esportivos , Cadeiras de Rodas
20.
Disabil Rehabil ; 39(2): 127-134, 2017 01.
Artigo em Inglês | MEDLINE | ID: mdl-26729004

RESUMO

Purpose To investigate the relationship between the classification systems used in wheelchair sports and cardiovascular function in Paralympic athletes with spinal cord injury (SCI). Methods 26 wheelchair rugby (C3-C8) and 14 wheelchair basketball (T3-L1) were assessed for their International Wheelchair Rugby and Basketball Federation sports classification. Next, athletes were assessed for resting and reflex cardiovascular and autonomic function via the change (delta) in systolic blood pressure (SBP) and heart rate (HR) in response to sit-up, and sympathetic skin responses (SSRs), respectively. Results There were no differences in supine, seated, or delta SBP and HR between different sport classes in rugby or basketball (all p > 0.23). Athletes with autonomically complete injuries (SSR score 0-1) exhibited a lower supine SBP, seated SBP and delta SBP compared to those with autonomically incomplete injuries (SSR score >1; all p < 0.010), independent of sport played. There was no association between self-report OH and measured OH (χ2 = 1.63, p = 0.20). Conclusion We provide definitive evidence that sports specific classification is not related to the degree of remaining autonomic cardiovascular control in Paralympic athletes with SCI. We suggest that testing for remaining autonomic function, which is closely related to the degree of cardiovascular control, should be incorporated into sporting classification. Implications for Rehabilitation Spinal cord injury is a debilitating condition that affects the function of almost every physiological system. It is becoming increasingly apparent that spinal cord injury induced changes in autonomic and cardiovascular function are important determinants of sports performance in athletes with spinal cord injury. This study shows that the current sports classification systems used in wheelchair rugby and basketball do not accurately reflect autonomic and cardiovascular function and thus are placing some athletes at a distinct disadvantage/advantage within their respective sport.


Assuntos
Desempenho Atlético/fisiologia , Sistema Nervoso Autônomo/fisiopatologia , Sistema Cardiovascular/fisiopatologia , Traumatismos da Medula Espinal/fisiopatologia , Esportes/classificação , Atletas , Pressão Sanguínea , Canadá , Frequência Cardíaca , Humanos , Masculino , Autorrelato , Esportes para Pessoas com Deficiência , Cadeiras de Rodas , Adulto Jovem
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA
...