Exploring the Influence of Wheelchair-User Interface and Personal Characteristics on Ischial Tuberosity Peak Pressure Index and Gradient in Elite Wheelchair Basketball Players

2020 ◽  
Vol 37 (1) ◽  
pp. 56-71
Author(s):  
Joseph Peters ◽  
Ian Rice ◽  
Tyson Bull

This pilot study investigated the relationship between personal and wheelchair factors on skin pressures at the ischial tuberosity in wheelchair basketball players. Seventeen wheelchair basketball players (7 male and 10 female) were evaluated during static and dynamic propulsive conditions while peak pressure index and peak pressure gradient were recorded with an interface pressure mat. The results showed that greater seat dump angles and backrest heights were negatively associated with the peak pressure index. Therapeutic cushion use was moderately associated with a reduced peak pressure gradient. Higher-class players used chair configurations associated with augmented pressure; however, classification status alone was not associated with pressure magnitude. Body mass index was negatively correlated with the static peak pressure gradient at levels approaching significance (p < .10). In conclusion, greater seat dump angles and backrest heights may provide pressure relief, whereas greater body mass index and therapeutic cushion use may reduce pressure gradients.

2018 ◽  
Vol 61 (1) ◽  
pp. 53-62 ◽  
Author(s):  
Kenji Kuzuhara ◽  
Masashi Shibata ◽  
Junta Iguchi ◽  
Ryo Uchida

AbstractFunctional movement screen (FMS) has been used to establish normative data and determine potential injury risk for young adults and athletes, but there are few data in elementary school-age children. The purpose of this study was to establish fundamental values for the FMS in elementary school-age mini-basketball players. Secondary purposes were to examine relationships between functional movement patterns and age, peak height velocity (PHV), and body mass index (BMI), and to compare functional movement patterns between boys and girls and between individuals with and without a history of injury. The mean composite FMS score was 16.5 ± 2.2 (16.5 ± 2.4 for boys, 16.5 ± 1.7 for girls). The composite FMS score was positively correlated with age (r = .312) and negatively correlated with the BMI (r = − .371). However, the FMS score was not correlated with PHV or with PHV age. The FMS score was not different between boys and girls or between individuals who reported a previous injury and those who did not. However, boys in the mini-basketball teams performed better than girls on the trunk stability push-up and rotary stability tests. Age and the body mass index were significantly associated with better and poorer functional movement, respectively.


2018 ◽  
Vol 71 (suppl. 1) ◽  
pp. 65-69
Author(s):  
Andrea Bozic ◽  
Ivan Mikov ◽  
Djordje Gajdobranski ◽  
Branislava Brestovacki-Svitlica ◽  
Zlatko Ciric

Introduction. Even though lumbar pain is one of the most common medical problems of today, it is difficult to determine its precise origin. When identifying the risk factors for developing lumbar pain, one should also take into account the personal characteristics such as gender, age, body mass index, smoking habits, physical activities etc. The basic goal of this study was to assess the relationship between the socio-demographic characteristics (age, gender, level of education), the body mass index, smoking habits, and lumbar pain in nurses. Material and Methods. This cross-sectional study was conducted in five healthcare institutions in the area of Vojvodina by interviewing nurses by means of the modified Nordic questionnaire. Results. The participants were predominantly female, the majority of them having secondary school degree. The study revealed a statistically significant relationship between lumbar pain and the increase of age and body mass index, while smoking habits did not influence the occurrence of lumbar pain. Conclusion. A better organization of work in relation to the age and gender as well body mass control would reduce the risk of lumbar pain.


Retos ◽  
2021 ◽  
Vol 43 ◽  
pp. 836-844
Author(s):  
Álvaro Díaz-Aroca ◽  
José Luis Arias-Estero

  The aim of this study was to determine the free throw technique and successful free throw technique both prior to ball release and at ball release moments in under-12 basketball, using a court-applied test. The participants were 102 players from eight male under-12 officially federated basketball teams. We used a point/ideographic/multidimensional observational design to analyse the recordings of 612 free throws. The test consisted of performing one, two or three free throws. One participant performed the free throws and the other passed the ball to him. The roles were exchanged until the two participants performed all the free throw options. As a result, the participants did not execute the free throw using the technique proposed by the literature. This difference was because jumping free throws shoots, with low style, feet at the same distance, and moderate forward displacement of the centre of mass predominated. The free throw technique was in general more regular than that of the successful free throws. Players used an unregulated technique, without meeting the criteria that activate success in the free throw. This technique resulted attempting successful free throws at 4 m from the basket, which is 2.60 m high, with a 485-g ball. Taking into account the characteristics of the participants of the present work in terms of age, strength, maturity, height, weight, and body mass index, coaches and the competition managers should assess what should be improved in under-12 basketball to allow players to increase free throw success.  Resumen: El objetivo de este estudio fue determinar la técnica de tiro libre y la técnica de tiro libre con éxito, tanto antes de la salida del balón como en el momento de salida del balón en baloncesto U-12, a través de un test de tiro. Los participantes fueron 102 jugadores de ocho equipos masculinos de baloncesto U-12 federados. Se utilizó un diseño observacional puntual/ideográfico/multidimensional para analizar las grabaciones de 612 tiros libres. La prueba consistía en realizar uno, dos o tres tiros libres. Un participante realizaba los tiros libres y el otro le pasaba el balón. Los participantes intercambiaban los roles hasta que los dos realizaron todas las opciones de tiro libre. Los resultados mostraron que los participantes no ejecutaron el tiro libre utilizando la técnica propuesta por la literatura. Esta diferencia se debió a que predominaron los tiros libres con salto, con estilo bajo, pies a la misma distancia y desplazamiento moderado del centro de masas hacia adelante. La técnica de los tiros libres en general fue más regular que la de los tiros libres con éxito. En conclusión, los jugadores utilizaron una técnica alejada de las recomendaciones teóricas, poco regular, y sin cumplir los criterios que posibilitan éxito en el tiro libre. Esto ocurrió como consecuencia de intentar obtener éxito en una situación de tiro libre a 4 m de la canasta, situada a 2.60 m de altura, y con un balón de 485 g. Teniendo en cuenta las características de los participantes del presente trabajo en cuanto a edad, fuerza, madurez, altura, peso e índice de masa corporal, los entrenadores y los responsables de las competiciones deberían valorar qué debe mejorarse en el baloncesto U-12 para que los jugadores puedan aumentar el éxito en los tiros libres.


2021 ◽  
pp. 74-79
Author(s):  
Milan Anđelić ◽  
Marko Joksimović ◽  
Aleksandar Kukrić ◽  
Elvira Nikšić ◽  
Stefania D'Angelo ◽  
...  

The morphological characteristics of elite basketball players are of great interest to some authors in order to define the best morphological profile for a particular playing position and different levels of competition. The aim of the research was to determine the differences in morphological characteristics in professional basketball players in relation to the playing position in different league competitions and to determine the relevance of these characteristics for success in the game. The survey included a sample of 773 elite basketball players competing in five different leagues in Europe. In our study, we found that centers are significantly taller and heavier than guards and forwards are. In addition to other components of basketball (technique, tactics, coach strategy), body height, body mass and body mass index play a major role in overall performance in a basketball game in all positions. The obtained data can help coaches in the scouting process in which leagues in Europe are played by players with certain morphological characteristics in relation to the playing position.


2010 ◽  
Vol 42 ◽  
pp. 622
Author(s):  
Sileno Santos ◽  
Regina Célia Da Silva ◽  
Júlia M. Greve ◽  
Emmanuel G. Ciolac

Neurosurgery ◽  
2017 ◽  
Vol 82 (4) ◽  
pp. 555-561 ◽  
Author(s):  
Daniel M S Raper ◽  
Dale Ding ◽  
Thomas J Buell ◽  
R Webster Crowley ◽  
Robert M Starke ◽  
...  

Abstract BACKGROUND Elevated body mass index (BMI) has been correlated with worse outcomes after treatment for idiopathic intracranial hypertension (IIH). Venous sinus stenting (VSS) has emerged as a safe and effective treatment for a subset of patients with IIH and evidence of venous sinus stenosis. However, the association between BMI and the efficacy of VSS remains poorly characterized. OBJECTIVE To determine, in a retrospective cohort study, the effect of BMI on preoperative mean intracranial venous pressure (MVP) and post-VSS outcomes. METHODS We performed a retrospective evaluation of a prospectively collected database of patients with IIH and intracranial venous sinus stenosis who underwent VSS. Patient demographics and treatment factors, including pre- and postprocedural trans-stenosis pressure gradients, were analyzed to identify the relationship between BMI and outcomes after VSS. RESULTS Increasing BMI was significantly correlated with higher maximum MVP (P = .013) and higher trans-stenosis pressure gradient (P = .043) prior to treatment. The degrees of improvement in maximum MVP and pressure gradient after VSS were greatest for obese and morbidly obese patients (BMI &gt; 30 kg/m2). Maximum poststent MVP, clinical outcomes, and stent-adjacent stenosis requiring retreatment after VSS were not significantly associated with BMI. CONCLUSION We provide direct evidence for a positive correlation between BMI and intracranial venous pressure in patients with IIH. VSS affords a significantly greater amelioration of intracranial venous hypertension and stenosis for IIH patients with higher BMIs. As such, obesity should not be a deterrent for the use of VSS in the management of IIH.


2017 ◽  
Vol 107 (3) ◽  
pp. 208-214 ◽  
Author(s):  
Kristína Tománková ◽  
Miroslava Přidalová ◽  
Zdenek Svoboda ◽  
Roman Cuberek

Background: Excessive body weight seems to be a risk factor for foot loading. We sought to investigate the effect of different body mass index (BMI) levels on plantar pressure distribution during walking. Methods: In total, 163 women aged 45 to 65 years (mean ± SD: age, 57.4 ± 5.3 years; BMI, 27.0 ± 5.3) participated in the study. The women were divided, on the basis of BMI, into a normal-weight, overweight, or obese group. The study used the four following plantar pressure parameters (PPPs): contact percentage, absolute pressure impulse, relative pressure impulse, and absolute peak pressure, which were recorded in ten foot regions using a pressure measurement system. Results: The normal-weight group, compared with the overweight and obese groups, had significantly lower absolute PPP values. In the hallux, second through fifth metatarsals, midfoot, and heel regions, we observed significant between-group differences in the two absolute PPPs (peak pressure and pressure impulse) (P &lt; .001). Between-group differences in the relative PPPs were found in the fourth metatarsal, midfoot, and medial heel (relative impulse) and in the second metatarsal (contact percentage) (P &lt; .001). Conclusions: Higher BMI values correspond to a higher load on the foot during walking in women. The relative foot load in obese women is characterized by a pressure increase in the lateral forefoot and midfoot and by a pressure decrease in the medial heel.


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