AI Article Synopsis
- The study aimed to explore how prolonged arm-crank exercise affects cardiovascular drift in individuals with spinal cord injury (SCI) compared to able-bodied participants.
- During a 40-minute exercise session, both groups showed similar baseline measures, but their heart rate responses differed, with able-bodied participants experiencing a continuous increase in heart rate, while those with SCI had a steady heart rate after the first 15 minutes.
- The findings suggest that individuals with SCI do not experience the same cardiovascular drift as able-bodied individuals due to unique responses in blood circulation and temperature regulation in their inactive muscles.
Article Abstract
Study Design: Observational study OBJECTIVE: To investigate the effects of prolonged arm-crank exercise on cardiovascular drift (CV) in spinal cord injury (SCI).
Setting: This is a community-based supervision study METHODS: Ten participants with motor -complete or incomplete SCI (lesion level T7-L1), and 10 able-bodied (AB) participants matched for age performed a 40-min arm-crank exercise at an intensity of 50% of peak oxygen uptake (VO).
Results: During the exercise, there were no significant differences between the groups in VO, tissue O saturation in the biceps brachii (active muscle), and chest and arm skin temperature (all P > 0.05). In the AB, heart rate (HR) increased within the first 15 min of the exercise and continued to increase until the end of the exercise; however, in the SCI, HR increased within first 15 min of the exercise and then remained constant until the end of exercise. After 10 min of exercise, thigh skin temperature had increased more in the SCI than in the AB (P < 0.05). Thigh skin blood flow (SkBF) continued to increase after 10 min of exercise in the AB but remained almost stable in the SCI. Relative changes in the thigh SkBF were associated with changes in HR during exercise between the values at 10 min and 40 min in the pooled data (R = 0.706, P < 0.001).
Conclusions: CV during the prolonged arm-crank exercise was not observed in individuals with SCI. This might be partially explained by different responses in cutaneous circulation within the inactive muscles of these participants.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1038/s41393-019-0301-5 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Short- and long-term effects of transcutaneous spinal cord stimulation on autonomic cardiovascular control and arm-crank exercise capacity in individuals with a spinal cord injury (STIMEX-SCI): study protocol.
BMJ Open
January 2025
School of Sport, Exercise and Rehabilitation Sciences, University of Birmingham, Birmingham, UK
Introduction: Individuals with higher neurological levels of spinal cord injury (SCI) at or above the sixth thoracic segment (≥T6), exhibit impaired resting cardiovascular control and responses during upper-body exercise. Over time, impaired cardiovascular control predisposes individuals to lower cardiorespiratory fitness and thus a greater risk for cardiovascular disease and mortality. Non-invasive transcutaneous spinal cord stimulation (TSCS) has been shown to modulate cardiovascular responses at rest in individuals with SCI, yet its effectiveness to enhance exercise performance acutely, or promote superior physiological adaptations to exercise following an intervention, in an adequately powered cohort is unknown.
View Article and Find Full Text PDFAerobic fitness in children with cerebral palsy compared to typically developing peers: A systematic review and meta-analysis.
Braz J Phys Ther
December 2024
Department of Rehabilitation Medicine, Amsterdam UMC, location VU University, Amsterdam, the Netherlands; Amsterdam Movement Sciences Research Institute, Rehabilitation and Development, Amsterdam, the Netherlands; Amsterdam Public Health research institute, Societal Participation and Health, Amsterdam, the Netherlands. Electronic address:
Article Synopsis
- Aerobic fitness is a key health indicator, and this study compares aerobic fitness levels in children with cerebral palsy (CP) to their typically developing (TD) peers using a maximal exercise test.* -
- A systematic review included 36 studies involving 510 children with CP and 173 TD peers, revealing a significant difference in peak oxygen uptake (VO) between the two groups, with CP children averaging 32.84 mL/kg/min compared to 45.02 mL/kg/min for TD peers.* -
- The findings indicate that children with CP, especially those with higher Gross Motor Function Classification System (GMFCS) levels, have severely compromised aerobic fitness, suggesting that promoting physical activity is essential for their
Similar adaptive responses in the upper body physical performance of table tennis players following the traditional and cluster set resistance and plyometric training.
Sci Rep
November 2024
School of Wushu, Shandong Sport University, Rizhao, 276800, Shandong, China.
Numerous studies have investigated the impact of resistance training (RT) and plyometric training (PT) set configurations (cluster sets [CS] and traditional sets [TS]) on lower body performance adaptations. However, the effects of these training modalities on upper body physical performance, particularly among Table Tennis (TT) players, remain unclear. Therefore, this study aimed to examine the effects of an 8-week RT and PT using CS and TS configurations on the physical performance attributes of male TT players.
View Article and Find Full Text PDFEffect of spinal cord injury on the skin temperature of different regions of interest during a graded exercise test in a moderate temperature environment.
J Therm Biol
October 2024
Research Group in Sports Biomechanics (GIBD), Department of Physical Education and Sports, University of Valencia, St: Gascó Oliag, 3, 46010, Valencia, Spain.
The gradient between core and skin temperature is a relevant factor in heat exchange between the human body and the environment, but people with spinal cord injury (SCI), due to their autonomic dysfunction, have impaired mechanisms that condition skin temperature response. This study aimed to determine how SCI affects skin temperature response in different ROIs during a graded exercise test in a moderate temperature environment. 32 participants were included in the study [SCI (N = 16); Non-SCI (N = 16)].
View Article and Find Full Text PDFErgogenic effects of spinal cord stimulation on exercise performance following spinal cord injury.
Front Neurosci
August 2024
School of Sport, Exercise and Rehabilitation Sciences, University of Birmingham, Birmingham, United Kingdom.
Article Synopsis
- Cervical spinal cord injuries can cause low blood pressure and poor cardiovascular responses during exercise due to disrupted sympathetic function, impacting individuals' ability to perform physical activities.
- This study compared the effects of two stimulation methods (epidural and transcutaneous spinal cord stimulation) versus sham stimulation on cardiovascular responses and upper-body exercise performance in men with chronic spinal cord injuries.
- Results showed that the optimized stimulation improved blood pressure, cardiac contractility, and exercise endurance, suggesting both methods could help enhance exercise performance and reduce fatigue for those with spinal cord injuries.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!