While some programs help improve general fitness or prepares the body for a specific sport, plyometrics aims to give an athlete an extra physical edge in the sport of their choice through high intensity bursts of movement (Boone, 2010). This is because plyometrics conditions the body to produce fast, powerful, and explosive movements. As a training program, it utilizes a series of stretches, muscle-contracting drills, and rapid exercises that are focused on a specific part of the body that is vital to performance in a specific sport.Plyometrics develops speed and strength, but not in the same way as weight-training or strength-building does. Instead of focusing on having bigger muscles and conditioning for raw physical strength, plyometrics aims at making muscles that work better and more efficiently in order to build strength and speed (Boone, 2010). This, mixed with the dynamic, quick bursts of movement is what separates plyometrics from weight-training and strength-building.
Exercise hyperemia occurs during heavy skiing and vigorous muscular excerises; it refers to the rise in blood flow to the skeletal muscles (Bergh & Forsberg, 2008). The activity occurs as a consequence of cell metabolism and is therefore known as functional or active hyperemia. It implies an increase in blood flow to al the body organs that experience a heightened parenchymal cell
Isotonic contractions are ones where the muscle is caused to change length when it contracts and there is movement of a part of the body. Concentric contractions are the ones where as the muscles shortens there is tension so the muscle increase in size, for example picking up a weight. Eccentric contractions are the ones
Fast twitch muscle fibres have the capacity to promptly transmit action potentials and generate a high cross ridge turnover rate. These fibres an explosive burst of power for a short period of time due to have a high level of myosin ATPase and a rapid rate of calcium release. Most suitable activities are max output activities; such as weightlifting.
al (2014) suggests that mechanical effects may exist through mechanosensing ion channels (MSCs) due to fluid shear stress increasing on the membrane of sperm head with an increase in the liquid velocity. MSCs are stretch activated channels that respond to mechanical stress on the cell membrane by allowing certain ions to enter the cell (Sachs, 2010). When a sperm swims against the flow, it experiences an increase in liquid pressure at its most upstream tip where the liquid is brought to a halt. This pressure rise increases with the flow velocity. In addition, the fluid drag / shear stress on sperm head also increases with flow velocity (El-Sherry et.
The faster an bject moves the more kinetic energy it has. The kinetic energy increases as its mass increases. Potential energy is stored energy, which means that an object can have energy even if it is not in motion. Some other forms of this energy include gravitational potential energy, elastic potential energy, and chemical potential energy. Friction is the force that resists the motion of two surfaces sliding against one each other.
This topic is very important because some creatures have started to go extinct.In my position that the number of creatures has increased over time, that the number of creatures are going to continue to increase.In this essay you will read about the number of creatures back then, you will also learn how the animals over time increased. How the number of animals has increased now and will it increase in the future. The first Mass Extinction was when 90% of the living organism had died out during this time. The mass
Sympathetic nervous system is the one that will be engaged. This is because; sympathetic nervous system normally functions to produce reflex adjustments and localized adjustments of the cardiovascular system. Under conditions of stress, activation of the entire sympathetic nervous system occurs producing the fight-or-flight response. What characterizes this response is an increase in heart rate, epinephrine release from the adrenal gland in large quantities, vasodilation of the skeletal muscle, cardiac output increase, vasoconstriction of cutaneous and gastrointestinal, dilation of pupillary piloerection and bronchial dilation. Preparing the individual for imminent danger is the overall effect (Bechir 2010).
Red Blood Cells Red blood cells will change shape in response to the evolving environment. For instance when distilled water is added to red blood cells, the red blood cells seem to expand. Why does this natural phenomenon cause red blood cells to appear considerably bigger after being exposed to distilled water? We tested two theories of why this happens. Theorem one is that molecules such as protein and polysaccharides are more concentrated inside the cell than outside the cell when the cell is in distilled water.
Blood Pooling Pregnancy and swelling often go hand in hand. During pregnancy, the volume of fluid and blood circulating in your body increases dramatically. For that reason your small blood vessels are more likely to leak fluid into the nearby tissue which is the root cause of pitting edema. As a result of fluid accumulation, you will notice swelling of the tissue, most often in your extremities and face. Increased Blood Pressure As your baby grows and develops during the course of pregnancy, the expansion of the uterus can put a lot of pressure on the vena cava, which is a major blood vessel that performs the important function of returning blood from the legs to the heart.
It occurs when your bones, tendons, muscles are growing rapidly than what they should. It’s a common disease for athletes. It all started when I was in fourth grade. I’m 19 now, and I’ve had this disease for ten years now. I told my parents that I had a bump on my knee.
I have learned during the last two weeks, from working on finishing up our power point presentation. It is interesting to see how previously experiences acquired from our interaction with the CCF team, literature review, and data analysis have had a positive impact on preparing the presentation. What was unclear at the beginning, was taking form, little by little until we had our final result, and meet our project objectives. 2. What difference has the learning made in my intellectual, personal, and ethical development?