Gastrocnemius muscle

action potential and the neuromuscular junction stimulations of the Rana pipens gastrocnemius. A total of five exercises were used to identify the effects on the stimulation of the sciatic nerve and the gastrocnemius. A dissection for both labs were performed to isolate the nerve and to isolate the gastrocnemius. Both experiments used LabChart to perform various stimulations on the sciatic nerve and the gastrocnemius muscle to observe the level of intensity, contraction, and voltage threshold…

Echo intensity is commonly used to assess muscle quality as an outcome measure in muscle physiology research. Muscle quality is an indicator of overall functional capacity and is negatively correlated with echo intensity (Watanabe et al., 2013). Echo intensity is defined as the mean pixel intensity in the muscle and is determined by gray scale analysis using B-mode ultrasonography (US; Watanabe et al., 2013). Lean muscle has low echogenicity while muscle with higher amounts of fibrous and…

femur. These two joints work together to form a hinge joint allowing the knee to bend and straighten and to also rotate slightly from side to side. Muscles There are two main muscles groups of the knee, the hamstrings, quadriceps and muscles of the calf all work to flex, extend and keep the knee stable and well aligned. The quadriceps is made of 4 muscles including the vastus medialis, vastus intermedius, vastus lateralis and rectus femoris located on the front of the thigh and is responsible…

Relationship between Calf Sizes, Gender, and Vertical Jumps Laura Thompson Mikaela Toler, Cassandra Jenkins, Kionna Calloway BSC 228-202 Introduction A human leg is made of many muscles that affect a person’s ability to jump. For example, the gastrocnemius, soleus, quadriceps, gluteus maximus, and abdominal muscles all help a person achieve a vertical jump. (McCollum, 2015). So, in other words, it basically takes the entire lower body to jump, not just the calf. This lab’s goal, however, was…

Psychology Lab Research Question: Why do older adults show a decrease on postural control? Hypothesis: Older adults with decreased knee or ankle threshold joint position sensation would show decreased postural control. • Threshold joint position is a test of sensory sensitivity used to quantify each subject’s proprioceptive abilities Methods: • 22 women and men, 70 yoa or older • all subjects had threshold joint position testing at ankle (plantar and dorsiflexion) and knee joints…

dioxide, respiratory alkalosis, being in a hypoxic state and many more. However, when having an exercise performance such as the winter Olympics one should take the proper precautions. Chronic adaptations to altitude include pulmonary, cardiovascular, muscle, nutrition/metabolism function. When pertaining to Desplanches et al. their researched was predominately looking at how changes in the pH can affect muscular function. As we learned in class there is a drastic change in pH levels due to the…

These exercises will help to balance out the muscles of her chest and back. By performing a ball cobra with weight, she will be able to strengthen her middle and lower trapezius, rhomboids, and rotator cuff ((NASM), 2013). The shoulder, biceps, and triceps exercises I have chosen will help her to improve…

the greatest decrease. The muscle tension average was 21.43 grams during the first 15 seconds once the injection stopped. Although the preconceived expectations before starting the experiment involved a sharper decline of muscle tension that fall between 5 to 0 grams, there was still a sufficient and concrete decline emphasized on Figure 3. In a molecular level, this fall is attributed to the tubocurare ions occupying the receptor site of acetylcholine, thus the muscle contraction process ceased…

INTRODUCTION The proteins actin and myosin is the caused of excitement of skeletal muscle. It can be made chemical, electrical and mechanic. When the muscles are use many times to the maximum force, the muscle will decline. That decline is called muscle fatigue. 1 L-Carnitine is a compound that makes the increment of the muscle performace. L-Carnitine is found in the entire cell on the body, its function is to change fats to energy and transport the fatty acids to the mitochondria. L-Carnitine…

Muscle Cramps As a recent victim of severe muscle cramps, I decided to take up the matter as the topic of my extra credit project. Muscle cramps are muscle spasms elongated for indefinite periods of time. Muscles contract involuntarily and forcibly, resulting in mild to intense pain that can last anywhere from seconds to over fifteen minutes. Muscle cramps can appear distorted or feel firmer than its normal, relaxed state. Muscle cramps have the ability to affect any skeletal muscle, whether…