Musculoskeletal pain in wheelchair basketball players of different point classifications, in South Africa

Background:Wheelchair basketball has gained worldwide popularity over recent years. Several studies have demonstrated a high prevalence of injuries amongst wheelchair basketball players. Few studies, however, have investigated prevalence of musculoskeletal pain in the context of different point classifications – an integral part of wheelchairsport. Objectives:The aim of this study was to determine the prevalence of musculoskeletal pain in wheelchair basketball players of different point classifications in South Africaand to provide information on patterns of pain distribution in relation to point classification. Methods:Forty-eight wheelchair basketball players, participating in the Supersport League Games of South South Africa, with point classifications ranging from 1.0 to 4.5, completed a questionnaire. The results were used to determine the patterns of musculoskeletal pain distribution in relation to the different point classifications. Results:Forty-three completed questionnaires were analysed. The prevalence of musculoskeletal pain was 58.14% (n=25). Shoulder pain had the highest overall prevalence regardless of point classification (n=23; 92% since the start of players wheelchair basketball careers and n=19; 76% over the last 12 months). It was found that lower point (1.0-2.5) players commonly experienced arm pain since the start of their wheelchair basketball careers (ƞ=0.358), as well as specifically over the last 12 months (ƞ=0.319) unlike higher point (3.0-4.5) players.Discussion and conclusion:The study contextualises the prevalence of musculoskeletal pain to point classification in wheelchair basketball. Such data is important in informing injury prevention strategies, as disabled athletes are predisposed to different types of musculoskeletal pain based on point classification. key words: disabled sport, prevalence, injury prevention

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Relationship between Sprint Capacity and Acceleration of Wrists in Wheelchair Basketball Players: Design and Reliability of a New Protocol

International Journal of Environmental Research and Public Health ◽

10.3390/ijerph181910380 ◽

2021 ◽

Vol 18 (19) ◽

pp. 10380

Author(s):

Amelia Ferro ◽

Javier Pérez-Tejero ◽

Guadalupe Garrido ◽

Jorge Villacieros

Keyword(s):

Computer Vision ◽

Injury Prevention ◽

New Technologies ◽

Performance Indicator ◽

Laser System ◽

Maximum Velocity ◽

Bilateral Symmetry ◽

Wheelchair Basketball ◽

Basketball Players ◽

Good Reliability

The application of new technologies in wheelchair basketball (WB) is important for the advancement and improvement of athletic performance. The purposes of this study are twofold: (a) to develop a methodological design in order to assess WB players’ performance, using wireless inertial measurement units (WIMU®) and a laser system (BioLaserSport® with computer vision), in a 20 m sprint test on court and (b) to assess bilateral symmetry as a performance indicator and for injury prevention purposes, the study of which in previous research is unknown. For both aims, the relation of the acceleration of the players’ wrists to the speed achieved by the player in the wheelchair was explored. Ten elite WB players participated in an on-court 20 m sprint test during real training. BioLaserSport® with computer vision was used to assess the average velocity (Va) and maximum velocity (Vmax) of the WB players, and two WIMU® were used for the total acceleration (AcelT) of the players’ wrists. A very high correlation was obtained in the assessment of the Va (0.97) and AcelT of both wrists (0.90 and 0.85). There was a significant relationship between the average AcelT of the dominant wrist and the Va on-court sprint velocity (p < 0.05). Two players did not show good wrist symmetry. In conclusion, a new methodological protocol was developed, making it possible to assess the bilateral symmetries in elite WB players in on-court real training and the relation between the acceleration of players’ wrists and players’ wheelchair speed. Coaches can use this protocol to assess performance or for injury prevention, as it shows very good reliability, with high ICC values.

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Wheelchair Basketball World Championships 2018 –player survey on training environment and health complaints

Deutsche Zeitschrift für Sportmedizin ◽

10.5960/dzsm.2020.421 ◽

2021 ◽

Vol 72 (2) ◽

pp. 61-67

Author(s):

S Kluge ◽

A Zech ◽

P Richarz ◽

H Riepenhof ◽

A Junge ◽

...

Keyword(s):

Injury Prevention ◽

Sports Injury ◽

High Rate ◽

Surveillance Systems ◽

Health Complaints ◽

Wheelchair Basketball ◽

Training Environment ◽

Basketball Players ◽

National Team ◽

Environment And Health

Problem: Little is known about health complaints and their prevention in elite wheelchair basketball. The study aimed to survey training environment and health complaints of elite wheelchair basketball players in the 12 months prior to the Wheelchair Basketball World Championships 2018 (WBWC). Methods: Players answered an anonymous retrospective questionnaire on match and training exposure, daily training environment, injury prevention as well as health problems and their implications in the 12 months before the WBWC. Results: In the 12 months prior the WBWC, 46.2% of athletes struggled at least sometimes with physical complaints, and 15.9% played often/always with pain or health complaints. Half of the players (50.8%) did not modify the volume of their training when having health complaints. Sixty percent of the athletes reported that injury prevention exercises were often or always part of their training. The overall training environment and national team support was rated as good or very good by 89.7% and 69.1% of players, respectively. Discussion: Prior to the world championships, wheelchair basketball players reported a high rate of pre-competition health complaints despite good training environment and the use of preventive strategies. Most players indicated they continued to play with pain and health complaints. Frequently playing with health complaints is known from other Olympic sports or pedestrian basketball. Prospective surveillance systems are needed to identify health complaints early and to examine efficiency of preventive measures in order to improve health and probably performance of wheelchair basketball players. Key Words: Paralympic Sports, Sports Injury, Injury Prevention, Trainings Conditions, Elite Athletes

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Prevalence of musculoskeletal pain among competitive high school male water polo players in Kwa Zulu Natal, South Africa

Advances in Rehabilitation ◽

10.2478/rehab-2013-0040 ◽

2012 ◽

Vol 26 (3) ◽

pp. 5-10 ◽

Cited By ~ 1

Author(s):

Terry Jeremy Ellapen ◽

Carl Stow ◽

Natalie Macrae ◽

Jessica Milne ◽

Hendrick Johan Van Heerden

Keyword(s):

South Africa ◽

Musculoskeletal Pain ◽

Descriptive Statistics ◽

Self Report ◽

Physical Contact ◽

Adolescent Male ◽

Chi Square ◽

Water Polo ◽

High Prevalence ◽

High Degree

Abstract : Introduction: Water polo is an aggressive, competitive aquatic game played by two teams of seven players with the intention to defeat the opposing team by scoring more goals which occasionally generate musculoskeletal pain and injury. Water polo incorporates swimming, treading, throwing the ball, in a volatile, dynamic aquatic domain which lends itself to a high degree of aggression and direct physical contact among opposing players. Aim: This study documented the prevalence of water polo related musculoskeletal pain among competitive adolescent male water polo players residing in Kwa-Zulu Natal, South Africa (n=100). Material and methods: Subjects completed a self-report musculoskeletal pain questionnaire, which gathered their demographical, epidemiological and exercise history over the last 12 months. The following descriptive statistics (mode, mean, frequency, percentages) and inferential statistics (chi-square set at a probability of 0.05) were employed to analyse the data. Results: Seventy-two of the cohort sustained musculoskeletal pain within the last 12 months (p< 0.001). The most prevalent anatomical sites that sustained water polo related musculoskeletal pain were; shoulder (51.04%), knees (23.95%) and vertebral column (17.71%) (p<0.0001). The predisposing mechanisms of producing this water polo related musculoskeletal pain were over-training (88.00%), rapid rotational movements (8.00%), collision with players (2.66%), and being struck with the ball (1.33%) (p<0.001). Conclusions: Competitive adolescent male water polo players residing in Kwa-Zulu Natal, South Africa experienced a high prevalence of water polo related shoulder, knee and vertebrae musculoskeletal pain.

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Double, triple or quadruple hits? Exploring the impact of cybercrime on victims in the Netherlands

International Review of Victimology ◽

10.1177/02697580211010692 ◽

2021 ◽

pp. 026975802110106

Author(s):

Raoul Notté ◽

E.R. Leukfeldt ◽

Marijke Malsch

Keyword(s):

Public Opinion ◽

Literature Review ◽

The Netherlands ◽

Public Discourse ◽

Moral Judgments ◽

Victim Blaming ◽

High Prevalence ◽

Different Types ◽

The Impact ◽

Insight Into

This article explores the impact of online crime victimisation. A literature review and 41 interviews – 19 with victims and 22 with experts – were carried out to gain insight into this. The interviews show that most impacts of online offences correspond to the impacts of traditional offline offences. There are also differences with offline crime victimisation. Several forms of impact seem to be specific to victims of online crime: the substantial scale and visibility of victimhood, victimisation that does not stop in time, the interwovenness of online and offline, and victim blaming. Victims suffer from double, triple or even quadruple hits; it is the accumulation of different types of impact, enforced by the limitlessness in time and space, which makes online crime victimisation so extremely invasive. Furthermore, the characteristics of online crime victimisation greatly complicate the fight against and prevention of online crime. Finally, the high prevalence of cybercrime victimisation combined with the severe impact of these crimes seems contradictory with public opinion – and associated moral judgments – on victims. Further research into the dominant public discourse on victimisation and how this affects the functioning of the police and victim support would be valuable.

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Influence of upper-limb muscle strength on the repeated change of direction ability in international-level wheelchair basketball players

Research in Sports Medicine ◽

10.1080/15438627.2021.1888110 ◽

2021 ◽

pp. 1-17

Author(s):

Aitor Iturricastillo ◽

Ibai Garcia-Tabar ◽

Raul Reina ◽

Adrian Garcia-Fresneda ◽

Gerard Carmona ◽

...

Keyword(s):

Muscle Strength ◽

Upper Limb ◽

Limb Muscle ◽

International Level ◽

Wheelchair Basketball ◽

Basketball Players ◽

Change Of Direction

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Lysyl Oxidase Mechanisms to Mediate Gastrointestinal Cancer Progression

Gastrointestinal Tumors ◽

10.1159/000511244 ◽

2020 ◽

pp. 1-10

Author(s):

Ahmadshah Farhat ◽

Gordon A. Ferns ◽

Korosh Ashrafi ◽

Mohammad-Hassan Arjmand

Keyword(s):

Cancer Progression ◽

Extracellular Enzymes ◽

Lysyl Oxidase ◽

Ecm Remodeling ◽

Complex Process ◽

High Prevalence ◽

Different Types ◽

Fibrotic Diseases ◽

Gi Cancers ◽

Improvement In Survival

Background: Malignancy is a complex process resulting from different changes such as extracellular matrix (ECM) remodeling and stiffness. One of the important enzymes that contribute to ECM remodeling is lysyl oxidase (Lox) that is overexpressed in different types of human cancers. Because of the high prevalence and poor survival of gastrointestinal (GI) malignancies in this review, we discuss the association between Lox activity and the progression of GI cancers. Lox proteins are a group of extracellular enzymes that catalyzed the cross-linking of collagen and elastin, so they have important roles in the control of structure and homeostasis of ECM. Abnormal activation and expression of the Lox family of proteins lead to changes in the ECM toward increased rigidity and fibrosis. Stiffness of ECM can contribute to the pathogenesis of cancers. Summary: Dysregulation of Lox expression is a factor in both fibrotic diseases and cancer. ECM stiffness by Lox overactivity creates a physical barrier against intratumoral concentration of chemotherapeutic drugs and facilitates cancer inflammation, angiogenesis, and metastasis. Key Message: Because of the roles of Lox in GI cancers, development targeting Lox protein isotypes may be an appropriate strategy for treatment of GI cancers and improvement in survival of patients.

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