Many of our daily functions involve the movement of the forearm and hand and require the use of the flexor musculatures. The strength of these muscles is vital because we are constantly using them throughout our daily activities ranging from playing sports, to eating, to writing, and many more tasks. Often overlooked, the strength of one's grip plays a key role in injury prevention and overall strength development. Grip strength can be used by orthopedic surgeons and physical therapists to diagnose neuromuscular problems. During gripping activities, muscles in the hand, wrist, and forearm are used. According to AthleticQuickness.com, The muscles of the flexor mechanism (including flexor pollicis longus, flexor digitorum superficialis and flexor digitorum profundus, flexor digiti minimi brevis, and flexor pollicis brevis as seen in figure …show more content…
As an athlete, I was interested in this because grip strength is used in a range of sports including wrestling, tennis, football, basketball, and baseball. When I was younger, I used to play tennis and would always hear the other players and coaches talk about lateral epicondylitis or tennis elbow. After doing some research I discovered that this is caused because they lack adequate grip and forearm strength. Because temperature has an effect on grip strength, I was interested in investigating whether that increased their risk of getting injured or could be used as a treatment. The most common method of assessment for grip strength is the use of a handheld dynamometer. It measures the muscular force generated by flexor mechanism of the hand and forearm. In the experiment, subjects will be asked to place their hand in cold water and then their grip strength will be tested. Then their normal grip strength will be compared with their grip strength after exposure to cold
One of the most important muscles in both a mink and a human are those of the arms and shoulders because of their involvement with movement. One of the primal movers of arm abduction along the frontal plane is the deltoid muscle found in both minks and humans. In both species, deltoid muscles allow for the abduction of the humerus. The next two muscles are the biceps brachii and its opposing muscle the triceps brachii. The biceps brachii consists of two heads, which arise from the scapula and join to form a single muscle that ends upon the upper forearm. The most important functions of the biceps brachii are the supination of the forearm and the flexing of the elbow. The triceps brachii on the other hand extends the forearm in both minks and humans and has three heads as opposed to two in its antagonist biceps brachii (Scott). The origin of the triceps brachii is also from the scapula like the biceps brachii. In a mink, the extensor digitorium originates on the lateral epicondyle of the humerus yet in humans it is present in the posterior forearm and is responsible for extending the phalanges, wrist, and elbow in both species. Anothier muscle with similar functions to the extensor digitorium is the flexor carpi ulnaris but instead it is soley responsible for flexin...
Witvrouw, E., Mahieu, N., Roosen, P., & McNair, P. (2007). The role of stretching in tendon injuries. British journal of Sports Medicine , 224-226.
Flexion is the bending of a joint so that the angle between the two bones decreases. The primary muscles that flex the knee are a group collectively known as “hamstrings.” The hamstrings consist of the biceps femoris, semitendinosus, semimembranosus. The muscles that assist in flexion are the sartorius, gracilis,...
The subject’s forearm was prepared by cleaning the surface of their skin (the flexor digitorum superficialis muscle) and the bony prominence of their wrist with an alcohol swab, and the EMG adhesive electrodes where placed on the belly of the flexor digitorum superficialis muscle. The positive electrode was placed more proximal to the elbow, while the negative electrode was placed more mid-distally. The grounding (noise reducing) electrode was places on the bony prominence of the wrist, and the force transducer was setup to achieve a stable baseline. The subject was then instructed to the support their forearm over the edge of the table or on their leg with the wrist in a semi-flexed position, and when ready squeeze the force grip transducer as hard as possible. For the first/”fast” time interval of the experiment, the subject made ten squeezes as fast as possible with one second per squeeze intervals, and the force onset, EMG onset, difference between force onset and EMG onset, peak EMG amplitude, and peak force amplitude were observed and recorded. The experiment was then repeated for a medium, three seconds per squeeze, and slow, five seconds per squeeze time intervals with the same variables observed and
The flexor tendons are not involved, although it may appear so in advanced contractions. Trauma may accelerate and in some cases even begin the process.
For example, "Little League Elbow" describes overuse injuries in kids who are repetitively throwing the ball. Kids are sustaining severe injuries to their growth plates, neck and spinal cord that could end their career in pro-sports before it begins....
21. Alcock GK, Stratford PW. Validation of the Lower Extremity Functional Scale on athletic subjects with ankle sprains. Physiother Can. 2002;54:233-240.
Sweat. Blood. Tears. Fruit punch Gatorade. Many people all around the world play sports whether it is Football, Baseball, Tennis, Swimming, Wrestling or Track. People have come together and played sports since the begging of time; the Olympics unites people all over the world. However, once in a while shocking and sometimes fatal injuries can occur. Although sports teams prior to sports medicine have employed team physicians for numerous years, the field of sports medicine did not arise until about the 20th century. The first textbook on the subject of sports medicine was published in 1910 to help athletes avoid fatal injuries. Sports medicine is a branch of medicine that deals with physical fitness, treatment and prevention of injuries related to sports and exercise. There is danger in almost any sport and athlete participated in; sports have caused many life altering injuries and sometimes even death. Due to sports medicine becoming a new and growing health care profession, many injures have went undocumented. The common athletic trainer may deal with minor cuts and bruises, muscle cramps, ACL sprains, ankle sprains, shin splints and maybe even a broken bone; but once in a while they can experience extreme injures. There has been various outrageous and gruesome injuries throughout sports medicine history.
data on injury rates for the variety of sports and physical activities in which people of all
Besides the mechanism of an injury, injuries can be distinguished by their severity. Injury severity can be defined by whether or not the athlete lost participation time (Yang et al., 2012). The National Athletic Injury/Illness Reporting Systems (NAIRS) better differentiates injury severity by classifying injuries as either time-loss (TL) or non-time-loss (NTL) injuries. Injuries that required an athlete to miss the next scheduled event/session were identified as TL injuries, while injuries that did not restrict an athlete’s ability to play we...
Dunn, George et al. National Strength and Conditioning Association. National Strength and Conditioning Association Journal. 7. 27-29. 1985.
Gabboth, Tim. "Journal of Strength & Conditioning Research (Lippincott Williams & Wilkins). Feb2012, Vol. 26 Issue 2, P487-491. 5p." N.p., n.d. Web.
* Heat and Cold Therapy has been used for centuries to manage soft tissue and joint injuries while relieving pain.
Also, it was stated that because of the elbow angle at foot stride and ball release that the shoulder joint was affected more so than at any other time. Finally, in order to understand why the injuries occur we should learn the joint ranges of motion so we can develop better preventive methods for injuries.
More than 38 million children and adolescents participate in organized sports in the United States each year. The most sports related injuries in kids are scrapes and bruises, brain and spinal injuries, teeth, ankles, knees, ACL, eyes, pulled muscles, sunburn and broken bones.... ... middle of paper ... ...