BIOS 255 Week 4 Lab: #7 Effect of Exercise on Arterial Pressure and Vascular Resistance LABORATORY REPORT Activity 7: Effect of Exercise on Arterial Pressure and Vascular Resistance PREDICTIONS 1. During exercise: MAP will increase 2. During exercise: CO will increase 3: During exercise: SVR will decrease MATERIALS AND METHODS 1. Dependent Variable: heart rate (HR), stroke volume (SV), blood pressure (BP) 2. Independent Variable: level of activity 3.
LABORATORY REPORT Activity: Recruitment and Isotonic and Isometric Contractions Name: Carolyn Chrzastowski Instructor: Professor Waite Date: 07.19.2015 Predictions When the arm goes from resting to flexing, the amplitude and frequency of sEMG spikes will increase During flexion, the amplitude and frequency of sEMG spikes will ___ during extension. be greater than Recruitment of motor units will be greatest when the load is 20 pounds Materials and Methods Comparison of motor unit activation during muscle tone and concentric and eccentric isotonic contractions Dependent Variable amplitude and frequency of sEMG spikes Independent Variable muscle movement Controlled Variables total number of motor units
9 minute mile Part III: Principle of Specificity What part of the body did you exercise or overload when performing Cardiovascular Fitness exercises such as the one-mile run? Your cardiovascular system, your heart, your legs, your respiratory system, and your legs Part IV: Principle of Overload By increasing your pace ((intensity)[->0]) , you made your heart beat faster and work harder. This is called overload. Increasing the number of days you jog from two days to three days is another way of overloading your body. A third way to overload is to increase the distance covered.
Increasing the number of days you jog from two days to three days is another way of overloading your body. A third way to overload is to increase the distance covered. Suppose Cary could run .5 (1/2) of a mile in 4:00 minutes, what is the amount of time it would take Cary to reach each distance? Hint: As you increase the distance, you also increase the time required to perform the
As intensity during exercise increases so does SV. SV does have a maximum volume this can vary due to fitness level, ventricle elasticity and the blood to return to the heart. The biggest change in SV occurs from moderate to intense exercise. An average untrained athlete would have a SV 60-80ml/beat, and a trained athlete 160ml/beat. The higher the stroke volume the
Usually requires more aggressive treatment such as reperfusion therapy. 2. What is the pathophysiology causing Mr. Canton’s cool, clammy skin and aspiratory crackles? Heart Attack, It’s the result of signs and symptoms of left side congestive heart failure. 3.
* Mechanism of action: synthetic catecholamine with primarily beta1-adrenergic activity, acting as an inotropic vasopressor. Increases myocardial contractility, cardiac index, oxygen delivery, and oxygen consumption and increases cardiac output. Effects are variable due to differences in metabolism and renal excretion. * Expected outcome: increased systemic blood pressure and improved perfusion, especially related to myocardial dysfunction. Epinephrine * Begin continuous infusion of Epinephrine at 0.1mcg/kg/minute to infuse via
BIOS255 Week 6 Lab: #8 Respiratory Volumes LABORATORY REPORT Activity 8: Respiratory Volumes Name: Instructor: Date: PREDICTIONS 1. During exercise: TV will increase 2. During exercise: IRV will increase 3. During exercise: ERV will decrease 4. During exercise: VC will increase 5.
22 beats times 4 = 88 beats per minutes. 3. Which of the following resting pulse and resting blood pressure results would be typical of a well-conditioned athlete? Explain your answer (1.5 points) 72 and 150/90; 48 and 110/80; 66 and 120/95; 84 and 110/75. Athletes tends to have a lower resting heart rate because of their intense training programs.
Pressure waves travel throughout the blood vessels, which can be felt by the further movement of the blood. When the heart contract, blood is expelled into the aorta and the aorta stretches. At this point the wave of distention is most distinct, but comparatively slow-moving. As it travels towards the peripheral blood vessels, it progressively diminishes and becomes faster. In the large arterial branches, its velocity is 7 to 10 m/s; in the small arteries, it is 15 to 35 m/s.