scholarly journals Comparison of Designated Coefficients and their Predictors in Functional Evaluation of Wheelchair Rugby Athletes

2015 ◽  
Vol 48 (1) ◽  
pp. 149-156 ◽  
Author(s):  
Anna Zwierzchowska ◽  
Ewa Sadowska-Krępa ◽  
Marta Głowacz ◽  
Aleksandara Mostowik ◽  
Adam Maszczyk

Abstract The objectives of the present study were twofold: to determine differences between groups by means of chosen coefficients and to create significant predictors using regression models for athletes in wheelchair rugby who had the same spinal cord injury (tetraplegia) and were classified as low point and high point players. The study sample consisted of 24 subjects, who had sustained cervical spinal cord injury (CSCI). They were divided into low point (n=15) and high point (n=9) groups according to the IWRF Classification System. A one-way ANOVA revealed statistically significant differences in the following coefficients differentiating the groups: AC (η2=0.778), LC (η2=0.687), IC (η2=0.565), SC (η2=0.580). The Tukey’s HSD post-hoc test indicated statistically significant higher values of coefficients in the HP compared to the LP group: AC=0.958 (p=0.022), LC=0.989 (p=0.031), IC=0.971 (p=0.044), SC=0.938 (p=0.039). In the HP group, the most significant predictor was the sum of visceral and trunk fat which was negatively correlated with the SC (what constituted a positive adaptive change in response to training). With regard to the LP group, body height and circumference of the chest appeared to be most significant predictors and were positively correlated with the SC. In the LP group no predictor with respect to the SC was significantly correlated to sports training. Therefore, the functional classification system confirmed lower status of the LP players. The results of the present study indicate that both metabolic and somatic profiles which highly determine potential of wheelchair rugby athletes are significantly different in LP and HP players, what confirms the reliability of the functional classification system.

2021 ◽  
Author(s):  
Ewa Szeliga ◽  
Renata Borys ◽  
Agnieszka Brzozowska-Magoń ◽  
Andżelina Wolan-Nieroda ◽  
Grzegorz Magoń ◽  
...  

Abstract Background. Spinal cord injuries are one of the main causes of disability in Poland and in the world. Quadriparesis, limitations in activities of daily living, lack of full autonomy and psycho-social problems are consequences of cervical spinal cord injury. Due to the consequences, especially motor paralysis and sedentary lifestyle resulting from spinal injuries, much attention is drawn to physical activity in subjects with this type of injuries. Objective. The aim of the study is to assess the effect of regular physical activity on functional fitness and independent existence of subjects after high spinal cord injury.Methods. 80 subjects with transverse injury of cervical spinal cord were enrolled in the study. The study group included men aged 20-50, in which group 40 (50%) of the subjects were qualified to the physically active group – subjects doing wheelchair sport, and 40 (50%) of the subjects were qualified to the physically inactive group – subjects taking no physical activity. The physically active men were qualified on the basis of their participation in organised activities - wheelchair rugby. Minimum participation was 90 minutes a day twice a week. Subjects from the physically inactive group had a passive lifestyle and participated in no sports activities. Results. Highly significant differences were observed during the study between the physically active and inactive men with regard to the functionality status. The study subjects taking regular physical exercise had better results in all assessed activities. The biggest differences were observed in the field of toilet and dressing up. Conclusions. The study confirmed that regular physical activity is correlated with better fitness. The study also showed that the subjects playing wheelchair rugby are more independent, which results in their better functional status in everyday life.


2014 ◽  
Vol 31 (4) ◽  
pp. 377-389 ◽  
Author(s):  
Viola C. Altmann ◽  
Jacques Van Limbeek ◽  
Anne L. Hart ◽  
Yves C. Vanlandewijck

A representative sample (N = 302) of the wheelchair rugby population responded to a survey about the classification system based on prioritized items by International Wheelchair Rugby Federation members. Respondents stated, "The classification system is accurate but needs adjustments" (56%), "Any athlete with tetraequivalent impairment should be allowed to compete" (72%), "Athletes with cerebral palsy and other coordination impairments should be classified with a system different than the current one" (75%), and "The maximal value for trunk should be increased from 1.0 to 1.5" (67%). A minority stated, "Wheelchair rugby should only be open to spinal cord injury and other neurological conditions" (36%) and "There should be a 4.0 class" (33%). Results strongly indicated that athletes and stakeholders want adjustments to the classification system in two areas: a focus on evaluation of athletes with impairments other than loss of muscle power caused by spinal cord injury and changes in classification of trunk impairment.


2021 ◽  
Vol 4 (1) ◽  
Author(s):  
Michael D. Sunshine ◽  
Antonino M. Cassarà ◽  
Esra Neufeld ◽  
Nir Grossman ◽  
Thomas H. Mareci ◽  
...  

AbstractRespiratory insufficiency is a leading cause of death due to drug overdose or neuromuscular disease. We hypothesized that a stimulation paradigm using temporal interference (TI) could restore breathing in such conditions. Following opioid overdose in rats, two high frequency (5000 Hz and 5001 Hz), low amplitude waveforms delivered via intramuscular wires in the neck immediately activated the diaphragm and restored ventilation in phase with waveform offset (1 Hz or 60 breaths/min). Following cervical spinal cord injury (SCI), TI stimulation via dorsally placed epidural electrodes uni- or bilaterally activated the diaphragm depending on current and electrode position. In silico modeling indicated that an interferential signal in the ventral spinal cord predicted the evoked response (left versus right diaphragm) and current-ratio-based steering. We conclude that TI stimulation can activate spinal motor neurons after SCI and prevent fatal apnea during drug overdose by restoring ventilation with minimally invasive electrodes.


Sensors ◽  
2021 ◽  
Vol 21 (4) ◽  
pp. 1057
Author(s):  
Riccardo Bravi ◽  
Stefano Caputo ◽  
Sara Jayousi ◽  
Alessio Martinelli ◽  
Lorenzo Biotti ◽  
...  

Residual motion of upper limbs in individuals who experienced cervical spinal cord injury (CSCI) is vital to achieve functional independence. Several interventions were developed to restore shoulder range of motion (ROM) in CSCI patients. However, shoulder ROM assessment in clinical practice is commonly limited to use of a simple goniometer. Conventional goniometric measurements are operator-dependent and require significant time and effort. Therefore, innovative technology for supporting medical personnel in objectively and reliably measuring the efficacy of treatments for shoulder ROM in CSCI patients would be extremely desirable. This study evaluated the validity of a customized wireless wearable sensors (Inertial Measurement Units—IMUs) system for shoulder ROM assessment in CSCI patients in clinical setting. Eight CSCI patients and eight healthy controls performed four shoulder movements (forward flexion, abduction, and internal and external rotation) with dominant arm. Every movement was evaluated with a goniometer by different testers and with the IMU system at the same time. Validity was evaluated by comparing IMUs and goniometer measurements using Intraclass Correlation Coefficient (ICC) and Limits of Agreement (LOA). inter-tester reliability of IMUs and goniometer measurements was also investigated. Preliminary results provide essential information on the accuracy of the proposed wireless wearable sensors system in acquiring objective measurements of the shoulder movements in CSCI patients.


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