Exploring methods for targeted activation of the sympathetic nervous system without exercise
نویسندگان
چکیده
Abstract When using functional electrical stimulation (FES) for cycling in individuals with spinal cord injury (SCI) during FES-cycling, a rapid onset of muscular fatigue can be observed. Among other reasons, missing neural feedback from the lower extremities might responsible reduced sympathetic response stimulation. Therefore, this project explores different methods to activate nervous system increase heart rate allow better blood circulation and oxygenation working muscles. Six techniques were selected tested on 10 healthy participants context pilot measurements. Those cold pressor test both hands, virtual reality roller-coaster ride, hot water immersion two Wim Hof breathing method, Valsalva manoeuvre ingestion Capsaicin through Prik Jinda chilli peppers. The results showed significant average as well peak all performed. From baselines around 68±1.3 bpm, strongest increases parameters found (to 118±20.9 bpm peak, 91±14.2 average), method 112±13.5 86±11.8 average) 103±18.9 80±16.7 average). they performed project, are not directly applicable FES-Cycling but rather serve exploration how efficiently which stimuli rate. In future research, adaptation or combination help performance FES-Cycling.
منابع مشابه
Sympathetic Nervous Activation and Failure
Background Although heart rate variability (HRV) at 0.1 Hz has been proposed as a noninvasive clinical measure of cardiac sympathetic nerve firing, this premise has not been sufficiently validated by comparison with techniques such as microneurography and the measurement of norepinephrine spillover from the heart that more directly reflect presynaptic sympathetic activity. Methods and Results W...
متن کاملSympathetic nervous system neuroplasticity.
In human and experimental models of heart failure there is widespread change in the sympathetic nervous system. This involves preferential activation of the sympathetic nervous outflow to the heart, impairment of norepinephrine reuptake by sympathetic nerves, and reduction of the content of norepinephrine in the failing myocardium, attributable in part to sympathetic neuronal rarefaction.1–4 Mi...
متن کاملSurgery of the Sympathetic Nervous System
This article reviews the innervation of the arterial system of the lower extremity, lumbar sympathectomy in vascular surgery, lumbar sympathectomy for digital gangrene and in the prevention of major amputation of the lower extremity and substance P's role in neurogenic inflammatory modulation. Long-term results of lumbar sympathectomy and direct arterial bypass surgery have also been reviewed. ...
متن کاملconditional copula-garch methods for value at risk of portfolio: the case of tehran stock exchange market
ارزش در معرض ریسک یکی از مهمترین معیارهای اندازه گیری ریسک در بنگاه های اقتصادی می باشد. برآورد دقیق ارزش در معرض ریسک موضوع بسیارمهمی می باشد و انحراف از آن می تواند موجب ورشکستگی و یا عدم تخصیص بهینه منابع یک بنگاه گردد. هدف اصلی این مطالعه بررسی کارایی روش copula-garch شرطی در برآورد ارزش در معرض ریسک پرتفویی متشکل از دو سهام می باشد و ارزش در معرض ریسک بدست آمده با روشهای سنتی برآورد ارزش د...
ذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Current Directions in Biomedical Engineering
سال: 2022
ISSN: ['2364-5504']
DOI: https://doi.org/10.1515/cdbme-2022-2006