No Conclusion
The force of gravity affects all "bodies" in the universe. How well each human falls into the imaginary line of gravity determines the energy they must have to expel to live within this force.
The ideal axis for obtaining the greatest balance is one that is a strait line through the center mass of the body. This line should be identical to the one between the gravitational force between the body and the earth. The human body has adapted over many generations and there are markers that will show where a strait line should form to be properly aligned. This imaginary line connects points at the top of the head, middle of the ear, middle of the shoulder, midpoint of the hip joint, center of the knee joint, and center of the ankle joint.
Finding the angles that this line forms from unevenness will explain some things about the amount of energy and mobility this person spends to stay upright. If a person is not consciously holding their muscles to stay up, they must have chronic tension in their muscles to even themselves out. Over time this tension has been programmed into their brain and the connective tissue has been bundled up to help hold the tension. This tension has most definitely limited mobility of the antagonist muscles because they must now use extra force to move. These tensions are most likely formed from the overall function of the individual. For example, if a person is a shot-putter they will build up connective tissue to reinforce themselves from the large amount of torque placed on their bodies outside of their Center of Mass. Over time, their body will adapt to resist the forces its put on it but outside of shot-put, those tensions will remain as part of the person. Eventually, the chronic torque that the tensions of the muscles put on the body will deform the lines of symmetry and be detrimental to the person.
When people lift weights, it is almost impossible to isolate the lifting to a specific muscle due to the body's make up and connections in the brain. Phisiologicly, there are limitations to each muscle. When an isolated lift is attempted and one muscle can't do the job and more are called in that might not act directly on the lift but help in some way, it is called recruitment. Recruitment generally involves using more superficcial muscles than inferior ones and will result in a greater torque beacuse of this.
According to Neumann, a force can be considered a push or pull that can produce, arrest or modify movement and can be measured as F=ma (Neumann, 2010). Force can also be considered the load. In regards to muscle contraction force relative to the joint, the force can be the internal force produced by the muscle itself, the force of gravity or the force of the particular load/weight. Torque is a cross product between force and the distance of the force from the fulcrum and is the ability of a force to cause rotation on a lever. Torque is a measure of how much a force acting on an
For years it was thought that the golf swing was a solid piece of movement without any differentiating variables. Vast expansion in technology over the last 20 years has produced more information on the biomechanics of the golf swing. “ Golf Biomechanics applies the principles and technique of golf mechanics to the structure and function of the golfer in an effort to improve the golf technique and performance” (Hume P., Keogh J., and Reid D. 2005) Biomechanics, “The scientific discipline that applies mechanical principles and to understanding movement.” (Hume P., Keogh J., and Reid D. 2005) allows scientists to observe a golfer’s swing to near milliseconds to the point of impact. This is much more precise to previous measurements used such as video recordings, outlines, etc. Understanding how the swing works by breaking down the movements within the swing through visual aids emphasize the opportunity for a better swing and in turn, better golf. Studies of biomechanics within the golf swing have shown the sequential separation from torso to pelvis, disproving the original theory of a solid swing with continuous motion known as the X-factor. Before understanding how the biomechanics of the golf swing works with the X-factor, the basics of the swing must be established.
Oatis C. (2009) Kinesiology: The Mechanics & Pathomechanics of Human Movement (Second ed.). Glenside, Pennsylvania: Lippincott Williams & Wilkins.
As we have learned through our reading, most all bodies skeletal muscles are made up of primarily three types of skeletal muscle fibers, but their proportion differs depending on what action the muscles is doing. For example, type I fibers such as muscles of the neck, back, and leg have a higher proportion. According to Quinn (2014), type I muscles are slower and more effective, they tend fire a lot slower than fast twitch fibers and they fatigue at a much slower rate. Hence, slower twitch fibers are pronounced at helping athletes run marathons and bicycle for hours. Shoulder and arm muscles are not always active but are intermittent in their use; these muscles tend to have a larger amount of tension for uses in throwing and lifting. These muscles have a combination of both type I and type II B fibers. These fast twitch fibers use anaerobic metabolism to create energy and are the "classic" fast twitch muscle fibers that excel at producing quick, powerful bursts of speed. These muscles are used in events such as 100m sprint, basketball, soccer and football. Since this muscle fiber fires at such a high rate of contraction it will fatigue much faster and will not last long before needing to rest.
Anderson, D. I., & Sidaway, B. (2013) Kicking biomechanics: Importance of balance. Lower Extremity Review Magazine.
Kinesiology is a complimentary therapy used to identify and correct internal issues to relieve stress, allergies, and pain. Being described as a complimentary therapy, kinesiology is not meant to be a cure-all for the patient, but a secondary method of increasing positive results of the original therapy; this method however can be used as a primary or secondary form of therapy depending on the results for the patient and satisfaction with said results. During treatment the doctor tests 14 different areas of muscles balance, these major muscles and how they react are believed to uncover problems that need correction which cannot be found with any other testing (Rude Health).
Choi, Al. "Muscle Dysmorphia: A New Syndrome in Weightlifters." British Journal of Sports Medicine. British Journal of Sports Medicine, n.d. Web. 20 Apr. 2014. .
Weight lifting is a broad term used to represent a vast number of actual exercises and styles. Weightlifting can be broken down into weight training, bodybuilding, fitness lifting, isometric training, resistance training, and athletic training. Although they posses similarities, often their objective separates them. Weight training generally means the pursuit of getting as strong as possible, and uses dead weight such as dumbbells and barbells. Bodybuilders have the goal to get the largest muscle mass and often times have a very small percent body fat. Fitness training or endurance training is often performed with low weight and high repetitions to build muscular endurance and general, non-athletic fitness. In isomeric training, the muscles and joints don't...
The focus of this paper is mechanically and automatically break down the deadlift. It focuses on the four phases of the deadlift (The lift off, pull through, the lockout, and the lowering phase) as well as the muscles involved in lifting and lowering the load. The sole purpose of the deadlift is for health and fitness. It is a core lift that works nearly every muscle in the body. Muscles from the lower and upper extremities will go through a period of flexion and extension when moving through the phases. The deadlift should be performed safely, and with proper form to avoid injury. This paper shows and demonstrates the proper form of the deadlift. There are also a number of forces acting on the load and the athlete. Gravity and external forces will be an active part of lifting the load. Images and tables are provided in the paper to better understand the movements and muscles used when performing the deadlift.
In this position the athlete stands upright with their feet slightly separated and parallel, the arms hanging easily at the sides with the palms facing the body. When standing still muscles co-contract to stabilise the body and prevent it from falling or flopping due to the effects of gravity. The key joints that stabilize the body are the ankle joint, knee joint, hip joint, vertebral column and the shoulder girdle.
In our everyday lives, we almost take for granted this idea of balance or equilibrium that is maintained within our bodies. In general, no real thought processes are required. It is only when something is disturbed within our balance system that one is able to take notice of changes in the equilibrium. There may be several different factors that cause a disturbance to our bodies. One major area pertains to dizziness. Dizziness is found to be "the chief complaint in 8 million physician visits a year" (1). Vertigo is one type of dizziness, causing illusions of movement, that is being researched more and more today because of its widespread symptoms.
Many of us have some kind of postural deviation which can affect our performance as a result of which our bodies would not work at maximum efficiency. A faulty posture can also lead to back problems. Such faulty
The majority of difficulties that arise can be traced back to the zero gravity environment in which humans experience physiological changes which can be detrimental to their health. When humans enter weightless space they become dis-oriented due to the neurovestibular interactions, those that are processed in the brain cavity (DeHart 840). These cause side effects, such as space motion sickness or Space Adaptation Syndrome (SAS) (Shipman, Humans 99). As astronauts enter zero gravity they experience a nauseous sensation which returns with fast actions or movement from a small to a large space in the space vehicle. Those who are more susceptible to this illusory sensation develop space motion sickness and have personalities that are introversive, neurotic, or fearful (DeHart 840-841). Thi...
Three of the more obvious effects of gravity are things falling. down, weight, and the the moon and planets staying in their orbits. Things fall down. People have generally grown to accept that if one lets go of one prized and valuable textbook when walking through a mud puddle, the book will. invariably end up in the puddle and therefore be stripped of all value and even legibility. Things fall down because there is a strong gravitational attraction between things of great mass, like the Earth, and things of little mass, like a book.
Having good posture helps ensure that the entire body is properly aligned, while the tension in the ligaments and muscles are properly distributed. In addition, maintaining good posture is a way to keep body parts in their proper positions with minimal stress and more comfort. Maintaining a good posture