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S01 EMG 1 Motor Unit Recruitment

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EMG 1 investigates the properties of skeletal muscle. Students record the EMG data associated with the maximum clench strength for their dominant hand and non-dominant hand. The system records and displays both the raw and integrated EMG signals. Students compare clench strength between their two arms and listen to the sound of their EMG. It is also possible for students to perform a cross-group analysis.

Experimental Objectives

  1. To record maximum clench strength for right and left hands.
  2. To observe, record, and correlate motor unit recruitment with increased power of skeletal muscle contraction
  3. Optional: To listen to EMG sounds and correlate sound intensity with motor unit recruitment.

Tasks Performed by the Student

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.

Lesson Hardware

This lesson requires a Biopac Science Lab (MP40) System and the following hardware. If your BScL System does not include all hardware items, expand your system by selecting required items below.

Item Name Cart
SCILAB-I Biopac Science Lab Intro. System Add to Cart
SCILAB-I5 Biopac Science Lab Intro. (5 systems) Add to Cart
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