Development of low-cost cardiac and skeletal muscle laboratory activities to teach physiology concepts and the scientific method.

Development of low-cost cardiac and skeletal muscle laboratory activities to teach physiology concepts and the scientific method. Adv Physiol Educ. 2020 Jun 01;44(2):181-187 Authors: Judge JL, Cazares VA, Thompson Z, Skidmore LA Abstract Anatomy and Physiology courses taught at community colleges tend to focus laboratory hours primarily on anatomy as opposed to physiology. However, research demonstrates that, when instructors utilize active learning approaches (such as in laboratory settings) where students participate in their own learning, students have improved outcomes, such as higher test scores and better retention of material. To provide community college students with opportunities for active learning in physiology, we developed two laboratory exercises to engage students in cardiac and skeletal muscle physiology. We utilized low-cost SpikerBox devices to measure electrical activity during cardiac (electrocardiogram) and skeletal muscle (electromyogram) contraction. Laboratory activities were employed in Anatomy and Physiology courses at two community colleges in southeast Michigan. A 2-h laboratory period was structured with a 20-min slide presentation covering background material on the subject and experiments to examine the effects of environmental variables on nervous system control of cardiac and skeletal muscle contraction. Students were asked to provide hypotheses and proposed mechanisms, complete a results section, and provide conclusions...
Source: Adv Physiol Educ - Category: Universities & Medical Training Authors: Tags: Adv Physiol Educ Source Type: research

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The Brugada syndrome is an inherited channelopathy that alters the main transmembrane ion currents that constitute the cardiac action potential. These changes not only modify the resting electrocardiogram but also predispose patients to develop malignant ventricular tachyarrhythmias that can lead to syncope, cardiac arrest, and sudden cardiac death. This syndrome is responsible for nearly 20% of all sudden cardiac deaths in patients with structurally normal hearts and up to 12% of all sudden cardiac deaths. Brugada syndrome is diagnosed by its characteristic electrocardiogram consisting of a coved-type ST-segment elevation...
Source: Cardiology in Review - Category: Cardiology Tags: Review Articles Source Type: research
Particulate matter poses health risk to developing organisms. To investigate particulate matters with a diameter smaller than 2.5 um (PM2.5)-induced developmental cardiotoxicity, fertile chicken eggs were exposed to PM2.5 via air cell injection at doses of 0.05, 0.2, 0.5, 2, and 5 mg/egg kg. Morphological changes in the embryonic day four (ED4) and hatchling hearts were assessed with histological techniques. Heart rates of hatchling chickens were measured with electrocardiography. The protein expression levels of nuclear factor kappa-light-chain-enhancer of activated B cells p65 (NF-kb p65), inducible nitric oxide synthase...
Source: Frontiers in Pharmacology - Category: Drugs & Pharmacology Source Type: research
When added to exercise electrocardiography, CTA can improve five-year risk prediction.
Source: Diagnostic Imaging - Category: Radiology Authors: Tags: Cardiac Imaging CT Source Type: news
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Source: ABC News: Health - Category: Consumer Health News Tags: Health Source Type: news
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Source: Journal of Cardiovascular Electrophysiology - Category: Cardiology Authors: Tags: EP ROUNDS Source Type: research
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Source: Physical Therapy - Category: Physiotherapy Authors: Tags: Phys Ther Source Type: research
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Source: Dr. Smith's ECG Blog - Category: Cardiology Authors: Source Type: blogs
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Scilingo The non-invasiveness of photoplethysmographic (PPG) acquisition systems, together with their cost-effectiveness and easiness of connection with IoT technologies, is opening up to the possibility of their widespread use. For this reason, the study of the reliability of PPG and pulse rate variability (PRV) signal quality has become of great scientific, technological, and commercial interest. In this field, sensor location has been demonstrated to play a crucial role. The goal of this study was to investigate PPG and PRV signal quality acquired from two body locations: finger and wrist. We simultaneously acquire...
Source: Sensors - Category: Biotechnology Authors: Tags: Article Source Type: research
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