BMME 205 215 Spring 2022 Lab 5 worksheet Muscle stationary forces Due Week of 03 21 at BEGINNING of lab Names Biceps force versus perpendicular load Hold 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 load Hold 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 2022 Lab 5 worksheet Muscle stationary forces Due Week of 03 21 at BEGINNING of lab Biceps curl Hold a weight in your hand and let your arm hang straight down at your side Without moving your upper arm 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 extension Hold a weight in your hand and raise your arm above your head with your elbow extended Turn your palm 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 your triceps 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 angles