کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8274828 | 1535101 | 2016 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The association of resting state heart rate variability and 24-hour blood pressure variability in spinal cord injury
ترجمه فارسی عنوان
ارتباط تغییرات ضربان قلب در حالت استراحت و تغییرات فشار خون 24 ساعته در آسیب نخاعی
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
BP variabilitySBPDBPVO2maxPNN50MSDbpV - bpvHRV - ENGSpinal cord injury - آسیب نخاعیcardiovascular disease - بیماری قلب و عروقیMaximal oxygen uptake - حداکثر جذب اکسیژنCVD - رسوب دهی شیمیایی بخار baroreflex - رفلکس بارورسپتورHeart rate - ضربان قلبsci - علمیhigh frequency - فرکانس بالاlow frequency - فرکانس پایینBlood pressure - فشارخونmap - نقشهheart rate variability - نوسان ضربان قلبHouston - هوستونIBI - وجود دارد
موضوعات مرتبط
علوم زیستی و بیوفناوری
بیوشیمی، ژنتیک و زیست شناسی مولکولی
سالمندی
چکیده انگلیسی
Patients with high cervical complete spinal cord injuries (tetraplegia) sustain damage to the autonomic neural pathways that influence cardiovascular functioning and produce variability in the heart rate (HR) and blood pressure (BP). In non-injured individuals, an inverse relationship exists between resting autonomic control of the heart (as evidenced by HR variability (HRV)) and BP variability (BPV). This study examined the relationship between HRV, BP and BPV in individuals with tetraplegic (n = 10) and paraplegic (n = 10) spinal cord injuries, and a group of healthy controls (n = 14). Resting HRV at baseline and 24-hour ambulatory BP measurements were collected from electrocardiogram measures of each participant. HRV was quantified using time- and frequency-domain measures. The standard deviation of the BP measurements was used as an index of BPV. Multivariate analyses of variance were performed to examine group differences for laboratory-based and 24-h dependent variables. The MANOVAs for HRV parameters (λ(14,50) = .352, p = .010, η2 = .407) and for BP indices and HR (λ(16,48) = .318, p = .013, η2 = .436) were significant. Furthermore, in line with existing evidence, we found that vagally mediated HRV was inversely related to BPV in healthy controls. However, this relationship did not hold for the tetraplegia group (Ï < |.42 |), and mixed results were found for the paraplegia group (e.g., Ï < |.29 | for time domain HRV, Ï > |.65 | for low-frequency power). These results support the conclusion that the damage to the spinal sympathetic pathways to the heart found in people with tetraplegia causes a significant disruption in baroreflex control of BP.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of the Neurological Sciences - Volume 361, 15 February 2016, Pages 52-59
Journal: Journal of the Neurological Sciences - Volume 361, 15 February 2016, Pages 52-59
نویسندگان
Julian F. Thayer, John J. III, Annika Clamor, Julian Koenig, Kristofer J. Hagglund,