scholarly journals No effect of arm-crank exercise on diaphragmatic fatigue or ventilatory constraint in Paralympic athletes with cervical spinal cord injury

2010 ◽  
Vol 109 (2) ◽  
pp. 358-366 ◽  
Author(s):  
Bryan J. Taylor ◽  
Christopher R. West ◽  
Lee M. Romer

Cervical spinal cord injury (CSCI) results in a decrease in the capacity of the lungs and chest wall for pressure, volume, and airflow generation. We asked whether such impairments might increase the potential for exercise-induced diaphragmatic fatigue and mechanical ventilatory constraint in this population. Seven Paralympic wheelchair rugby players (mean ± SD peak oxygen uptake = 16.9 ± 4.9 ml·kg−1·min−1) with traumatic CSCI (C5–C7) performed arm-crank exercise to the limit of tolerance at 90% of their predetermined peak work rate. Diaphragm function was assessed before and 15 and 30 min after exercise by measuring the twitch transdiaphragmatic pressure (Pdi,tw) response to bilateral anterolateral magnetic stimulation of the phrenic nerves. Ventilatory constraint was assessed by measuring the tidal flow volume responses to exercise in relation to the maximal flow volume envelope. Pdi,tw was not different from baseline at any time after exercise (unpotentiated Pdi,tw = 19.3 ± 5.6 cmH2O at baseline, 19.8 ± 5.0 cmH2O at 15 min after exercise, and 19.4 ± 5.7 cmH2O at 30 min after exercise; P = 0.16). During exercise, there was a sudden, sustained rise in operating lung volumes and an eightfold increase in the work of breathing. However, only two subjects showed expiratory flow limitation, and there was substantial capacity to increase both flow and volume (<50% of maximal breathing reserve). In conclusion, highly trained athletes with CSCI do not develop exercise-induced diaphragmatic fatigue and rarely reach mechanical ventilatory constraint.

1999 ◽  
Vol 80 (3) ◽  
pp. 288-293 ◽  
Author(s):  
Mitsuru Yamamoto ◽  
Fumihiro Tajima ◽  
Hiroyuki Okawa ◽  
Takashi Mizushima ◽  
Yuichi Umezu ◽  
...  

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.


2021 ◽  
Vol 284 ◽  
pp. 103568
Author(s):  
Pauline Michel-Flutot ◽  
Arnaud Mansart ◽  
Therese B. Deramaudt ◽  
Isley Jesus ◽  
Kun-Ze Lee ◽  
...  

Neurosurgery ◽  
2019 ◽  
Vol 66 (Supplement_1) ◽  
Author(s):  
Alexander Dru ◽  
Dan Neal ◽  
W Christopher Fox ◽  
Brian Lim Hoh ◽  
Daniel J Hoh

Abstract INTRODUCTION Advances in treatment of traumatic cervical spinal cord injury with fracture (TCSCIF) have led to significant improvements in clinical outcomes; however, progress in healthcare is seldom ubiquitous across demographic groups. We explored if disparities in treatment and outcome after TCSCIF exist across race and socioeconomic status. METHODS We queried the Nationwide Inpatient Sample database from 1998 to 2009 for TCSCIF hospitalizations. Multivariate analysis was used to identify the correlation between socioeconomic status and race to treatment type and outcome. RESULTS There were 21 985 admissions for TCSCIF. In all 66.9% had a favorable discharge disposition. In-hospital mortality rate was 12.5%. In all 43.7% underwent surgery. Overall, surgery was associated with lower in-hospital mortality (OR 0.30, 95% CI 0.27-0.34, P < .01) and better discharge disposition (OR 0.68, 95% CI 0.62-0.74, P < .01) vs nonsurgical or no intervention. Controlling for race and socioeconomic status demonstrated higher status (HS) non-Caucasians had lower odds of receiving surgery than HS Caucasians (OR 0.89, 95% CI 0.81-0.97, P = .01). LSES non-Caucasians had lower odds of receiving surgery than HS Caucasians (OR 0.83, 95% CI 0.73-0.94, P < .01). HS non-Caucasians had lower odds of receiving surgery than LSES Caucasians (OR 0.87, 95% CI 0.77-0.99, P = .03). LSES non-Caucasians had lower odds of receiving surgery than LSES Caucasians (OR 0.82, 95% CI 0.71-0.94, P = .01). For favorable discharge status HS non-Caucasians, LSES non-Caucasians, and LSES Caucasians all had lower odds of favorable discharge compared to HS Caucasians (OR 0.83, 95% CI 0.73-0.95, P = .01/OR 0.69, 95% CI 0.59-0.81, P < .01/OR 0.75, 95% CI 0.66-0.85, P < .01), respectively. CONCLUSION In our multivariate model that controlled for race and socioeconomic status in the setting of TCSCIF, race (but not socioeconomic status) was a factor in receiving surgery and both race and LSES impacted favorable discharge.


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