Seated Double-Poling Ergometer Performance of Individuals with Spinal Cord Injury – A New Ergometer Concept for Standardized Upper Body Exercise

2012 ◽  
Vol 34 (02) ◽  
pp. 176-182
Author(s):  
A. Bjerkefors ◽  
F. Tinmark ◽  
J. Nilsson ◽  
A. Arndt
2017 ◽  
Vol 98 (10) ◽  
pp. e18
Author(s):  
James Bilzon ◽  
Peter Rouse ◽  
Jean-Philippe Walhin ◽  
Dylan Thompson ◽  
Tom Nightingale

2018 ◽  
Vol 124 (3) ◽  
pp. 805-811 ◽  
Author(s):  
Nicholas B. Tiller ◽  
Thomas R. Aggar ◽  
Christopher R. West ◽  
Lee M. Romer

The aim of this case report was to determine whether maximal upper body exercise was sufficient to induce diaphragm fatigue in a Paralympic champion adaptive rower with low-lesion spinal cord injury (SCI). An elite arms-only oarsman (age: 28 yr; stature: 1.89 m; and mass: 90.4 kg) with motor-complete SCI (T12) performed a 1,000-m time trial on an adapted rowing ergometer. Exercise measurements comprised pulmonary ventilation and gas exchange, diaphragm EMG-derived indexes of neural respiratory drive, and intrathoracic pressure-derived indexes of respiratory mechanics. Diaphragm fatigue was assessed by measuring pre- to postexercise changes in the twitch transdiaphragmatic pressure (Pdi,tw) response to anterolateral magnetic stimulation of the phrenic nerves. The time trial (248 ± 25 W, 3.9 min) elicited a peak O2 uptake of 3.46 l/min and a peak pulmonary ventilation of 150 l/min (57% MVV). Breath-to-stroke ratio was 1:1 during the initial 400 m and 2:1 thereafter. The ratio of inspiratory transdiaphragmatic pressure to diaphragm EMG (neuromuscular efficiency) fell from rest to 600 m (16.0 vs. 3.0). Potentiated Pdi,tw was substantially reduced (−33%) at 15–20 min postexercise, with only partial recovery (−12%) at 30–35 min. This is the first report of exercise-induced diaphragm fatigue in SCI. The decrease in diaphragm neuromuscular efficiency during exercise suggests that the fatigue was partly due to factors independent of ventilation (e.g., posture and locomotion). NEW & NOTEWORTHY This case report provides the first objective evidence of exercise-induced diaphragm fatigue in spinal cord injury (SCI) and, for that matter, in any population undertaking upper body exercise. Our data support the notion that high levels of exercise hyperpnea and factors other than ventilation (e.g., posture and locomotion) are responsible for the fatigue noted after upper body exercise. The findings extend our understanding of the limits of physiological function in SCI.


2007 ◽  
Vol 21 (4) ◽  
pp. 315-330 ◽  
Author(s):  
Linda Valent ◽  
Annet Dallmeijer ◽  
Han Houdijk ◽  
Eelkje Talsma ◽  
Luc van der Woude

2017 ◽  
Vol 49 (5S) ◽  
pp. 629-630
Author(s):  
Donal Murray ◽  
Rachel E. Cowan ◽  
Suzanne L. Groah ◽  
Inger H. Liungberg ◽  
Amanda K. Rounds ◽  
...  

2020 ◽  
Vol 26 (4) ◽  
pp. 304-313
Author(s):  
Donal Murray ◽  
Lisa M.K. Chin ◽  
Rachel E. Cowan ◽  
Suzanne L. Groah ◽  
Randall E. Keyser

Background: People with spinal cord injury (SCI) present with impaired autonomic control when the lesion is above T6. This could lead to delayed cardiorespiratory recovery following vigorous physical activity. Objectives: To characterize and compare gas exchange off-kinetics following exhaustive exercise in individuals with SCI and an apparently healthy control group. Methods: Participants were 19 individuals with SCI who presented with the inability to voluntarily lift their legs against gravity (age, 44.6 ± 14.2 years; AIS A, n = 5; AIS B, n = 7; AIS C, n = 7; paraplegia, n = 14; tetraplegia, n = 5) and 10 healthy comparisons (COM; age, 30.5 ± 5.3 years). All participants performed an arm ergometer cardiopulmonary exercise test (aCPET) to volitional exhaustion followed by a 10-minute passive recovery. O2 uptake (V̇o2) and CO2 output (V̇co2) off-kinetics was examined using a mono-exponential model in which tau off (τoff) and mean response time (MRT) were determined. The off-kinetics transition constant (Ktoff) was calculated as ΔV̇o2/MRT. Student t tests were used to compare SCI versus COM group means. Results: COM had a significantly higher relative peak V̇o2 compared to SCI (1.70 ± 0.55 L/min vs 1.19 ± 0.51 L/min, p = .019). No difference was observed for τoff between the groups, however Ktoff for both V̇o2 and V̇co2 was significantly lower in the SCI compared to the COM group. Conclusion: A reduced Ktoff during recovery may suggest inefficiencies in replenishing muscle ATP stores and lactate clearance in these participants with SCI. These findings may contribute to the observed lower cardiorespiratory fitness and greater fatigability typically reported in individuals with SCI.


2018 ◽  
Vol 1 (88) ◽  
Author(s):  
Kęstutis Skučas

Research background and hypothesis. Studies have shown that persons after spinal cord injury rarely continue participating in sport (Stryker, Burke, 2000; Hanson, Nabavi, 2001; Stephan, Brewer, 2007). This could be caused by the obstacles that the persons face due to the motor disorder after spinal cord injury (Wu, Williams, 2001; Tasiemski et al., 2004). Hypothesis: persons with spinal cord injury while being involved in disabled sport face the same problems irrespectively of gender. Research aim was to determine the obstacles and possibilities for involvement and participation in sport after spinal cord injury.Research methods. The questionnaire method was used to collect sport participation data (Tasiemski et al., 2004) and determine socialization agents of persons after spinal cord injury (Williams, 1994). The athletic identity assessment scale (Brewer, Cornelius, 2002) was used in the research. Research results. Data showed that the majority of the subjects after spinal cord injury were not involved in sport; 11.9% did sports 1 hour per week, 13.2% – 2–3 hours per week, 10.6% – more than 6 hours per week. The value of athletic identity of paraplegic subjects was equal to 23 points, and that of tetraplegic subjects – 18 points (statistically significant data difference between the two groups when p < 0.05). It was found that athletic identity value of men after spinal cord injury (22 points) was statistically significantly higher compared to that of women (16 points, p < 0.05). Lack of adapted sport facilities – 49.6%, equipment – 53.2%, coaches – 48.4% and financial resources – 42.0% proved to be the major obstacles to participate in sport for persons after spinal cord injury.    Discussion and conclusions. According to the research, only a minority of persons after spinal cord injury identified  themselves  as  athletes.  It  was  found  that  the  main  social  agents  involving  disabled  persons  into  the mainstream of sport were other disabled persons, rehabilitation and physical therapists, coaches and other sports professionals.  Persons  after  spinal  cord  injury  believed  that  the  main  reasons  of  non-participation  in  sport  was lack  of  information  about  disabled  sport,  also  lack  of  sports  equipment,  financial  problems    and  lack  of  sports professionals. Most persons after spinal cord injury participated or would participate in sport with the aim of getting fit, strengthening the upper body part, socializing, feeling the joy of life. The majority of results of the study were similar to the results of other researchers (Tasiemski et al., 2004) who analyzed disabled persons’ problems while involving in sport.Keywords: involvement in disabled sport, athletic identity, social agents.


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