Summary BIO 252 pp lab report Recruitment and Isotonic and Isometric Contractions

LABORATORY REPORT Activity: Recruitment and Isotonic and Isometric Contractions Name: Instructor: Date: Predictions When the arm goes from resting to flexing, the amplitude and frequency of sEMG spikes will During flexion, the amplitude and frequency of sEMG spikes will during extension. Recruitment of motor units will be greatest when the load is Materials and Methods Comparison of motor unit activation during muscle tone and concentric and eccentric isotonic contractions Dependent Variable Independent Variable Controlled Variables Recruitment during isometric contractions Dependent Variable Independent Variable Controlled Variables 4. What does the acronym sEMG stand for? 5. During a muscle contraction, what is recorded on a sEMG? 6. Spike numbers were measured during a msec period.