Chronic effects of simultaneous electromyostimulation and vibration on leg blood flow in spinal cord injury

Spinal Cord ◽  
2016 ◽  
Vol 54 (12) ◽  
pp. 1169-1175 ◽  
Author(s):  
H Menéndez ◽  
C Ferrero ◽  
J Martín-Hernández ◽  
A Figueroa ◽  
P J Marín ◽  
...  
Keyword(s):  
Spinal Cord ◽  
Spinal Cord Injury ◽  
Blood Flow ◽  
Leg Blood Flow ◽  
Chronic Effects ◽  
Cord Injury

scholarly journals Acute effects of simultaneous electromyostimulation and vibration on leg blood flow in spinal cord injury

Spinal Cord ◽  
2015 ◽  
Vol 54 (5) ◽  
pp. 383-389 ◽  
Author(s):  
H Menéndez ◽  
C Ferrero ◽  
J Martín-Hernández ◽  
A Figueroa ◽  
P J Marín ◽  
...  
Keyword(s):  
Spinal Cord ◽  
Spinal Cord Injury ◽  
Blood Flow ◽  
Acute Effects ◽  
Leg Blood Flow ◽  
Cord Injury

scholarly journals Passive Leg Movements and Passive Cycling Do Not Alter Arterial Leg Blood Flow in Subjects With Spinal Cord Injury

2006 ◽  
Vol 86 (5) ◽  
pp. 636-645 ◽  
Author(s):  
Walter Ter Woerds ◽  
Patricia CE De Groot ◽  
Dirk HJM van Kuppevelt ◽  
Maria TE Hopman
Keyword(s):  
Blood Pressure ◽  
Cardiovascular Disease ◽  
Spinal Cord ◽  
Spinal Cord Injury ◽  
Blood Flow ◽  
Vascular Resistance ◽  
Secondary Complications ◽  
Leg Blood Flow ◽  
Cord Injury ◽  
Leg Movements

Background and Purpose. Subjects with a spinal cord injury (SCI) are at increased risk for cardiovascular disease–related secondary complications, such as pressure ulcers and attenuated wound healing. It has been suggested that passive exercise enhances blood flow via mechanical pump effects or reflex activation. The purpose of this study was to assess the effects of passive leg movements and passive cycling on the arterial circulation in subjects with SCI. Subjects. Eight men with motor complete SCI and 8 male control subjects participated. Methods. Echo Doppler measurements were obtained to measure leg blood flow at rest, during and after 10 minutes of standardized passive leg movements, and during and after 20 minutes of passive leg cycling. Blood pressure was measured continuously, and total vascular resistance and leg vascular resistance were calculated. Results. In both groups, no changes in leg blood flow, vascular resistance, or blood pressure were observed during or after the 2 interventions. Discussion and Conclusion. The results of the study demonstrate that passive leg movements and passive cycling do not alter the arterial peripheral circulation in subjects with SCI or control subjects. Although the results do not support the use of passive movements or exercise for the prevention of cardiovascular disease–related secondary complications, physical therapists should not be dissuaded from using these techniques to address musculoskeletal concerns.

scholarly journals Cerebral Autoregulation during Postural Change in Patients with Cervical Spinal Cord Injury—A Carotid Duplex Ultrasonography Study

Diagnostics ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 1321
Author(s):  
Joo-Hyun Kee ◽  
Jun-Hyeong Han ◽  
Chang-Won Moon ◽  
Kang Hee Cho
Keyword(s):  
Blood Pressure ◽  
Spinal Cord ◽  
Spinal Cord Injury ◽  
Blood Flow ◽  
Cerebral Autoregulation ◽  
Duplex Ultrasonography ◽  
Postural Change ◽  
Carotid Duplex ◽  
Cord Injury ◽  
Carotid Duplex Ultrasonography

Patients with a spinal cord injury (SCI) frequently experience sudden falls in blood pressure during postural change. Few studies have investigated whether the measurement of blood flow velocity within vessels can reflect brain perfusion during postural change. By performing carotid duplex ultrasonography (CDU), we investigated changes in cerebral blood flow (CBF) during postural changes in patients with a cervical SCI, determined the correlation of CBF change with presyncopal symptoms, and investigated factors affecting cerebral autoregulation. We reviewed the medical records of 100 patients with a cervical SCI who underwent CDU. The differences between the systolic blood pressure, diastolic blood pressure, and CBF volume in the supine posture and after 5 min at 50° tilt were evaluated. Presyncopal symptoms occurred when the blood flow volume of the internal carotid artery decreased by ≥21% after tilt. In the group that had orthostatic hypotension and severe CBF decrease during tilt, the body mass index and physical and functional scores were lower than in other groups, and the proportion of patients with a severe SCI was high. The higher the SCI severity and the lower the functional score, the higher the possibility of cerebral autoregulation failure. CBF should be assessed by conducting CDU in patients with a high-level SCI.

Increased vascular resistance in paralyzed legs after spinal cord injury is reversible by training

2002 ◽  
Vol 93 (6) ◽  
pp. 1966-1972 ◽  
Author(s):  
Maria T. E. Hopman ◽  
Jan T. Groothuis ◽  
Marcel Flendrie ◽  
Karin H. L. Gerrits ◽  
Sibrand Houtman
Keyword(s):  
Blood Pressure ◽  
Spinal Cord ◽  
Spinal Cord Injury ◽  
Blood Flow ◽  
Mean Arterial Pressure ◽  
Arterial Pressure ◽  
Vascular Resistance ◽  
Arterial Blood Flow ◽  
Arterial Blood ◽  
Cord Injury

The purpose of the present study was to determine the effect of a spinal cord injury (SCI) on resting vascular resistance in paralyzed legs in humans. To accomplish this goal, we measured blood pressure and resting flow above and below the lesion (by using venous occlusion plethysmography) in 11 patients with SCI and in 10 healthy controls (C). Relative vascular resistance was calculated as mean arterial pressure in millimeters of mercury divided by the arterial blood flow in milliliters per minute per 100 milliliters of tissue. Arterial blood flow in the sympathetically deprived and paralyzed legs of SCI was significantly lower than leg blood flow in C. Because mean arterial pressure showed no differences between both groups, leg vascular resistance in SCI was significantly higher than in C. Within the SCI group, arterial blood flow was significantly higher and vascular resistance significantly lower in the arms than in the legs. To distinguish between the effect of loss of central neural control vs. deconditioning, a group of nine SCI patients was trained for 6 wk and showed a 30% increase in leg blood flow with unchanged blood pressure levels, indicating a marked reduction in vascular resistance. In conclusion, vascular resistance is increased in the paralyzed legs of individuals with SCI and is reversible by training.

scholarly journals The Effects of Local Cooling on Canine Spinal Cord Blood Flow

1985 ◽  
Vol 12 (2) ◽  
pp. 83-87 ◽  
Author(s):  
Robert R. Hansebout ◽  
R. Neil Lamont ◽  
M. Venkatraya Kamath
Keyword(s):  
Spinal Cord ◽  
Spinal Cord Injury ◽  
Blood Flow ◽  
Cord Blood ◽  
Normal Values ◽  
Local Cooling ◽  
Spinal Cord Blood Flow ◽  
Central Temperature ◽  
Cord Injury

ABSTRACT:The internal spinal cord blood flow was measured in dogs at the site of local cooling using hydrogen polarography. Blood flow decreased to 50% of the normothermic values during cooling of the cord to a central temperature of 16 degrees Celsius. Upon cessation of cooling internal blood flow rapidly returned to normal values. Implications of this finding for the treatment of spinal cord injury are discussed.

Sign in / Sign up

Export Citation Format

Share Document