BSL EMG lesson I investigates the properties of skeletal muscle. Students record the EMG data associated with the maximum grip clench for their dominant hand and then do the same for their non-dominant hand. The system will record and display both the raw and integrated EMG signals. This lesson allows the students to compare the grip clench between their two arms and listen to the sound of their EMG. It is also possible for students to perform a cross group analysis.
- To observe and record skeletal muscle tonus as reflected by a basal level of electrical activity associated with the muscle in the resting state.
- To record the maximum grip clench for the right and the left hand.
- To observe, record and correlate motor unit recruitment with the increased power of skeletal muscle contraction.
- To listen to EMG “sounds” and correlate sound intensity with motor unit recruitment.
Tasks Performed by the Student
BSL Lessons are designed to allow at least four students to record and save data in a normal lab period (60-90 minutes). Typically, labs work most efficiently with three or more students working together at each BSL System station.
- Record EMG from the dominant and non-dominant forearms.
- Clench their fist four times, increasing the grip each time to reach the maximum grip strength with the fourth clench.
- Listen to the sound of their EMG.
Student Prep & Distance Learning
Click the link(s) below for sample data and/or lesson procedure video(s), BSL PRO Lesson procedures (PDF) for human lessons*, and graph template files (*.gtl) for BSL PRO Lessons. If more than one .gtl is available, download the .gtl with the _suffix to match BSL version and hardware.
This lesson requires a Biopac Student Lab (BSL) System and the following hardware. If your BSL System does not include all hardware items, expand your system by selecting required items below. For more details, review the Lesson: L# BSL Lessons - see the Lab Manual or launch BSL; A# and H# BSL PRO Lessons, click the PDF link above to review full setup, recording, and analysis procedures.
Synchronizing Data from Multiple Participants
Performing a dyadic experiment takes more planning than single-participant studies. Data must be tightly synchronized, equipment must remain inobtrusive, and the experimental paradigm drives the optimal setup. Join us to learn how to record high-quality synchronized data for a wide range of applications.
What You Will Learn:
– How to synchronize data from two participants
– Recording options: ECG, EDA, EEG, fNIRS, Video
– Collaborative virtual environments
– Data analysis techniques
– Practical tips—and advice on working with children
– New ideas about your research
Live Webinar: May 20th at 8AM PT/11AM ET
BIOPAC provides software and hardware that allows engineers to study the body. Here are a few notable studies using BIOPAC equipment for Biomedical Engineering research. Rehabilitating the Rehab Industry Could physical therapy be done from the comforts of your own home? If possible, this would open the door for more people with all sorts of ailments to […]
BIOPAC’s comprehensive Introductory ECG Guide addresses fundamental to advanced concerns to optimize electrocardiography data recording and analysis. Topics include: ECG Complex; Electrical and Mechanical Sequence of a Heartbeat; Systole and Diastole; Configurations for Lead I, Lead II, Lead III, 6-lead ECG, 12-lead ECG, precordial leads; Ventricular Late Potentials (VLPs); ECG Measurement Tools; Automated Analysis Routines for extracting, […]