Askling Trial

Hamstring Strains (HS) are identified by acute pain in the thigh with disruption of the muscle fibres, with 47% of all HS studies stating that the BF muscle is affected (3). This can be explained because the BF muscle tendon and muscle fibres are where the most common distribution of the ground force produced during running (3). Eccentric contraction is explained by a study from Guex (4) stating that between 75-85% of the running cycle the hamstrings are undergoing an active lengthening contraction. Having this amount of eccentric contraction upon the muscles has the potential to cause an overuse injury (4). At 85% of the running cycle, the SM, ST, and BF are stretched by 8.7-12.0% which is beyond their optimum lengths (4).

Without a doubt a strain to the hamstring is an atrocious impairment to all athletes. Prevent an injury by always warming up and stretching. Stretch after your warmed up, it will increase flexibility. Unfortunately, not being fully stretched that night at dance practice, was what resulted my injury.

Hamstring will be very active when doing activities that demand a person to bend the legs, such as running, jumping, and climbing. Doing these activities will increase the risk of a pulled hamstring. To minimize the risk of a pulled hamstring, muscle stretching

Sedentary tendinopathy pts did not respond as well to eccentric loading for tendon rehab as did athletes in prior studies.

Intervention: Group 1: Participants in-group 1 will perform hamstrings resisted exercise using protonics brace. Group 2: Subjects in-group 2 will perform hamstrings resisted exercise using sport cord. Both groups will perform the exercise 3 times a week, 3 sets a day; each set is 10 repetitions for 4 weeks.

Hamstring strains have been one of the most common injuries around the world. Unfortunately, there has been a limited amount of success reducing the rate of this injury (Schmit, 2012). Although many researchers and doctors have studied the cause of hamstring strains, there are still many theories as to why they occur. One theory includes that there is an imbalance between the medial and lateral hamstring muscle that leads to hamstring muscle fatigue (Prentice, 2015). Hamstring strains are painful and prevalent in different types of activities. Most commonly these strains can be found in athletes that engage in running, skating, jumping sliding, kicking, and quick/fast motions (Valle, 2015).

Many people have stronger quadriceps than hamstrings because they are easier to work than hamstrings (Zirm). The best way for athletes to avoid pulling or tearing a hamstring is to balance everything. Make sure everything is working the same amount. If someone works legs today they are not just going to work their quads because their calves, glutes, and hamstrings will not have the same amount of strength. That will then cause the other muscles to work harder than the quads. That will then eventually lead to an injury that will take someone out of their sport for about six to eight weeks.

Studies have also shown that women in particular, unfortunately have a disadvantage in life when compared to male counterparts, and that is one pertaining to their higher risk for ACL injury. Due to a neuromuscular imbalance that is concomitant with overactive quadriceps strength compared to hamstring strength, females tend to place more stress on the ACL. Accordingly, this increases the pressure on the ACL leading to a higher prevalence of injury that will arise more on the female spectrum than that of the male (Myer et al., 2009). Furthermore, this is important to be aware of for female athletes and for the Physical Therapists who treat them in efforts to provide educational information regarding the relationship of stronger hamstrings correlating to a lesser chance of ACL injury. Personally, I have worked with athletic females in the past as a personal trainer and while I was not strengthening hamstrings with the direct objective to prevent an ACL injury, I was cognizant of the notion that a balanced quadriceps and hamstring ratio was necessary to avoid lower extremity injuries as a

Sherry et al (2004) combared the effectivness of two rehablitation programes in treatment of acute hamestring straines using time required to return to play and recurent of injury in the first two weeks and within the first-yeare as mesurments. Twenty-four prticipantes were recuruated and allocated randomly to group one (STST) which incloud static stretching, isolated progressive hamstring resistance exercise, and icing and group two (PATS) which consists from progressive agility and trunk stabilization exercises and icing. The treatment protocols were divided into two phase in both groups and the subjects progressed from stage one to stage two when they could perform high knee march in place without pain as well as walking with the same stride length and stance time on both injured and uninjured leg. Additionally, the athletes were allowed to return to play if they exhibited 5/5 manual muscle strength of knee flexion, had no tenderness with

Hamstring strain injuries are one of the most common sport related injuries involving high speed, kicking movements (Marc. A., et al 2004). Despite there being evidence that hamstring strains occur at both stages of movements; the early stance phase where the muscle absorbs the most force as a result of high ground reaction and the late swing phase, the hamstrings eccentrically contract to absorb the kinetic energy and slow the lower limb putting the hamstrings under a large amount of stress (Schmitt. B., et al 2012)

The number one component in the treatment of a strain is time and rest. The athlete must be prepared and patient to take the necessary time and rest to let the hamstring heal correctly for the long-term. Immediately after the injury occurs the athlete should focus on the R.I.C.E protocol. R.IC.E. stands for rest, ice, compression, and elevation. For the first day or two depending on the severity of the strain, the muscle should be iced for 10 to 15 minutes every hour then wrapped in compression. In the first few days, ibuprofen may be taken to help reduce the pain and the swelling. The ice and compression will help control swelling and bleeding if present. If more action is needed, elevation can be used to also help reduce swelling. After this stage is complete, the athlete can then began to apply heat to the muscle for up to twenty minutes. The heat will help to relax the biceps femoris, and will also increase blood flow. Another option at this time of the recovery is massaging the

Having sufficient length in the hamstrings is critical. And in addition being essential in games, for example, football and running, it can turn into a noteworthy benefactor in keeping up or bringing about back torment. A few sorts of back issues are not settled until the hamstrings are returned to sufficient length. It is likewise significant that hamstrings can get shorter as a result of back issues also, along these lines delivering a thick

H1: Implementing an exercise program on high school female soccer athletes will increase hamstring strength which is our surrogate marker for ACL tears.

This study included 28 patients who underwent ACL surgery performed by the same 2 surgeons and standard rehab protocol was done in the same physical therapy clinic, with all the same exercises and progressions. The Battery Test uses exercise analysis to grade the participants. The exercises include measurement of isokinetic strength, single hop for distance, triple hop, side hop, and a jump-landing assessment. There were also patient surveys that asses their feelings about the overall health of their knee. The participants completed this testing 6 months after surgery, which is the average RTP time frame for basic ACL rehab protocol. Out of all 28 patients, only 2 individuals passed this test and can be considered safe for RTP. This information is extremely important for anyone who has the authority to grant RTP to any athlete. Allowing patients back to play too soon is extremely dangerous and can cause further injury. Using this specific test to determine RTP decisions is a great technique to utilize in athletic

• Hamstring curls - 4 sets of 8-6-4-8 reps alternating weight as needed to maintain