NCSU BME 205 - Lab 5 worksheet: Muscle stationary forces

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BMME 205/215 Spring 2022Lab 5 worksheet: Muscle stationary forcesDue: Week of 03/21 at BEGINNING of labNames: _____________________________________________________________________Biceps force versus perpendicular loadHold your arm straight out in front of you so that it is parallel to the ground. Turn your palm medially (center of your body). Now bend your elbow to a 90° angle, so that your forearm is across your body. With your other hand, push your palm away as you keep your elbow bent at 90° (like a sideways biceps curl). You should feel tension in your biceps.Plot the force in your biceps versus the force with which your other hand is pushing. Don’t worry about numbers; plot the general trend.Triceps force versus perpendicular loadHold your arm straight out in front of you so that it is parallel to the ground. Turn your palm medially (center of your body). Now bend your elbow to a 90° angle, so that your forearm is across your body. With your other hand, pull your palm toward your body as you keep your elbow bent at 90° (like a sideways triceps extension). You should feel tension in your biceps.Plot force in your triceps versus the force with which your other hand is pulling. Don’t worry about numbers; plot the general trend.BMME 205/215 Spring 2022Lab 5 worksheet: Muscle stationary forcesDue: Week of 03/21 at BEGINNING of labBiceps curlHold a weight in your hand and let your arm hang straight down at your side. Without moving your upperarm, bend your elbow to lift the mass. Feel the tension in your biceps.Plot force in your biceps versus the angle of your elbow. Remember that fully extended is 0° and fully bent is ~150° or so. Again, don’t worry about exact force values, but try to estimate the angles.Triceps extensionHold a weight in your hand and raise your arm above your head with your elbow extended. Turn yourpalm medially (center of body). Bend your elbow 90° so that your forearm is parallel to the ground.Keeping your upper arm vertical, extend your elbow to raise the weight straight up. Feel tension in yourtriceps.Plot force in your triceps versus the angle of your elbow as you go from 90° (bent) to ~0° (straight). Again, don’t worry about exact force values, but try to estimate the


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NCSU BME 205 - Lab 5 worksheet: Muscle stationary forces

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