Muscular system

In high school, my soccer coach would have us stretch before AND after we finished practice. When we entered the weight room, however, he only had us group stretch after. A lot of people try to argue for pre-workout stretching, but according to WebMD, “everyone is more flexible after exercise.” Arguably, stretching post workout hasn’t seemed to decrease muscle soreness and pre workout stretching is unlikely to reduce risk of injury or improve performance. On the other hand, cooling down after…

It is that time of the year that I love the most, it is starting to get cold. The sun and I do not get along. In the past, I used to hate the winter because my knees would be achy and just in pain all the time. I am sure I am not the only one out there who has had this problem. If you did not know, I had a series of knee surgeries that used to cause me so much pain and agony. I thought I was going to be in pain for the rest of my life but that is definitely not the case anymore. For 3…

adduction. Standing, where the fixed point is at the insertion on the femur, contraction will rotate the pelvis anteriorly[17]. 2.2.2 Psoas This muscle is only muscle group in human body with direct attachment to the spine, the pelvis and the femur. Therefore it has potential to influence, and influenced by movement at both of the spine and hip joints[18]. 2.2.3 Gluteal maximus muscle: superficial group The gluteus maximus muscle is the one of the largest muscle in the gluteal region and…

Bradbury-Squires et al. (2014), Mohr et al. (2016), and Markovic (2015) found that foam rolling or rolling massage significantly increased range of motion of joints and increased flexibility of muscles in comparison to the control groups for all the interventions tested. However foam rolling wasn’t always the intervention that increased joint range of motion the most. For Mohr et al. (2016) static stretching alone increased range of motion more than foam rolling alone. Additionally, they also…

During construction, we tested the strength by putting the pair of pliers I was using to bend the paper clips on top of the base to see how sturdy it was. I would gently shake the structure while the pliers were on it to see where I needed more support. Where I needed more support, I added cross-bracing. I continued to test stability by adding more weight, seeing where I needed more support, then fixing the weak areas. This helped make my foundation stronger, which made my whole building…

Muscle can be damaged whether it be from sports injuries or other accidents. When this muscle damage occurs, the body responds accordingly in order to regenerate this lost or injured muscle. There are three main steps that are necessary in order for this renewal to occur. These steps include inflammation, revascularization/satellite cell differentiation, and innervation. (Grounds, 2011) This paper will discuss the mechanisms the body uses in order to form regenerated skeletal muscle. Muscle…

The three types of muscle contraction that will be discussed in this report are isotonic, isometric and isokinetic contraction. Isometric contraction is also known as static contraction and provides the most benefits to immobilized individuals who are currently in rehab due largely to the fact that it involves the strengthening of the muscle with apply force to the joint. Isometric contraction involves the muscle generating force however there is no change in the angle of the joint. As a result…

Dynamic Stretching Definition is a form of stretching beneficial in sports utilizing momentum from form, and the momentum from static-active stretching strength, in an effort to propel the muscle into an extended range of motion not exceeding one's static-passive stretching ability. Anything beyond this becomes ballistic stretching. This form of stretching prepares the body for physical exertion and sports performance. In the past it was the practice to undertake static…

(a) The structure of the rotator cuff consists of four muscles that all play a role in the motion of the rotator cuff. The four muscles that are responsible for this motion are: the Supraspinatus muscle, the Infraspinatus muscle, the Teres Minor muscle, and the Subscapularis muscle. Each of these muscles originate from the scapula and attach into the humerus. The Supraspinatus muscle originates in the Supraspinatus Fossa and attaches to the greater tubercle of the humerus. The infraspinatus…

The final results of the experiment showed that the area under the graph of the absolute values of the EMG is a linear relation to the strength of the muscle contraction. This is due to the amount of force a muscle produce. As I squeezed the bulb in my hand harder, the duration of the burst of activity increases with the duration of the muscle contraction. So depending on the amount of fibers participating in the contractions this can contribute to the graded contractions. As my grip became…