Ankle Dorsiflexion

Thirteen healthy undergraduate students at the University of Brighton (8 males, 5 females; mean ± SD, age: 19.2 ± 1.5 years; body mass: 67.4 ± 16.1 kg; height: 177 ± 28.2m) were briefed with the study procedure. Their anthropometric data was collected, along with a medical questionnaire and their consent to participate in the study. All of the participants were familiar with the laboratory testing procedures.

Running, it is the simplest of movements: right foot, left foot, right foot, and the simplest of actions: run, relax, and breathe. Many individuals participate in this form of exercise because they enjoy how good it makes them feel, they enjoy feeling the strength of their body while they run, and they enjoy using it as a way of relieving their stress. There are many other factors to take into consideration that effect a persons running such as, the type of footwear they are using, the distance they are running, and the speed of which they are running at. The objective of the main article was to research and compare the differences in stride length, hip, knee and ankle angles in runners when running two different conditions, shod and barefoot, also while running at two

In this paper I will be researching ACL injuries in sports. Along with what causes these injuries to happen, how they can be prevent and if the footwear we use as athletes can make these injuries more or less likely to happen to us. I will also be looking closely into the reoccurring ACL injury in which Derrick Rose of the Chicago Bulls has been suffering from for the past few years.

Manual muscle testing will be tested to assess the strength in muscles used for running such as the prime/strong muscles which are the hamstrings, gastrocnemius, soleus, quadriceps, and tibialis anterior. This will also determine the weakness in muscles such as the plantarflexors, dorsiflexors, knee flexion, and knee extension. Also, range of motion will be tested on the tight muscles such as the hamstrings, gastrocnemius, quadriceps, and tibialis anterior. When the muscles are tight, the runner will increase the risk of injury (Schipper, 2009). Gait analysis will be used to examine deficits to body function, stability, and describe how the patient will be running. This will help determine the patient’s biomechanics and achieve adequate mobility. Lastly, we will perform a pain assessment to see what pain level the patient is at when running. This will help determine whether the patient is minimizing stress on the body to achieve no pain at all while running. To monitor progress of these assessments, we must know that if these “muscles are weak or become fatigued easily, there is less control of the leg and the risk of injury increases" (Schipper, 2009, paragraph

The participants then completed the functional evaluation by completing three one-leg hop tests on each limb. The longest distance was recorded and calculated as the percentage of the performance of the ACL reconstructed leg over the uninvolved leg, the scores were calculated as the limb symmetric index (LSI). The authors of this study defined the ceiling effect as the percent of participants who received the maximum score of 100 points. The Spearman correlation coefficient was used to examine the correlation between both scales and the limb symmetric index and was interpreted as r > 0.5 which indicated a strong association. The Kolmogorov-Smirnov test was then used to examine the distribution

New York Time’s article “A Sprained Ankle May Have Lifelong Consequences”, written by Gretchen Reynolds describes the harsh reality of ankle injuries, explaining that they could possibly affect movement for the rest of the injured person’s life. People tend to address ankle injuries as something that will heal on their own and never be a problem again, but the studies discussed in this article show different results. Ankles are very easily damaged and will heal within a few weeks without serious medical treatment, which is why I believe that people brush off ankle injuries. The first study discussed in the article, facilitated by Dr. Hubbard-Turner, talks about college-aged men and women who were tested by wearing a pedometer for a week to

2001, Withrow, Huston et al. 2006). Quadriceps inserts on the proximal-anterior part of tibia and isolated contraction of the muscle will cause anterior translation of tibia in relation to femur, putting strain on the ACL and possibly rupture the ligament (Renström, Arms et al. 1986, DeMorat, Weinhold et al. 2004, Withrow, Huston et al. 2006). Furthermore, landing and cutting manoeuvres produce abduction, adduction and rotational torques about the hip and knee (Besier, Lloyd et al. 2001). Without an opposing force to these torques the loaded leg(s) will be forced into the valgus position with the femur adducted and internally rotated, the tibia externally rotated and the knee abducted further increasing strain on the ACL (Markolf, Burchfield et al. 1995). Ireland (2002) has characterized this the position of no return, unassumingly because it habitations the stabilizing muscles of the knee in a mechanical disadvantage disabling them from re-establishing a sound posture. I should notate that several studies have associated this position of no return to an increased risk of knee injury. Female athletes exhibit increased knee valgus 6 movement patterns during landing and cutting activities compared to male athletes (Chappell, Yu et al. 2002, Ford, Myer et al. 2003, Zeller, McCrory et al. 2003, Olsen,

Individuals who have experienced ankle sprains account for a high percentage of clinician referrals and emergency room visits annually. Specifically, lateral ankle sprains, are one of the most common injuries athletes and individuals who are recreationally active sustain. According to Hale, Fergus, Axmacher, and Kiser (2014), “researchers have estimated that approximately 25,000 ankle sprains occur each

The ankle joint is the most commonly injured part of the body for individuals who participate in competitive activities, accounting for approximately 30% of all sports related injuries (Boyas, Hajj, & Bilodeau, 2013; Hootman, Dick, & Agel, 2007; Waterman, Owens, Davey, Zacchilli, & Belmont, 2010). It was estimated that in the United States alone, there are around 25,000 ankle sprains suffered each day(Olmsted, Vela, Denegar, & Hertel, 2004). A systematic review has analyzed articles published between 1977 and 2005 in 70 sports, and demonstrated that the ankle was the

To provide measurements for safe reintroductions of the athletes to their respected sports, Standard Functional Tests (SFT) have been developed. (8,9,10) Most of these tests combined complex movements together to test and measure strength and neuromuscular control of athletes with activities that resemble athletic movements such as jumping, landing, and cutting. No universal accepted protocol exists to date (11), however, hop tests are the most common used in determining return to play follow ACL reconstruction (12) and have shown good reliability (13,14) and validity (14). Hop tests include single leg hop (SLH), triple hop (TH), cross over hop (COH), and timed hops (15). The single leg hop has been studied extensively and can help detect function limitations for up to 54 weeks postoperatively with good test-retest reliability. (16,17,18,19,20) It has also been shown to be

The purpose of the barefoot running study article is to determine whether runners can achieve the propose of favorable kinematic changes and reduction in loading rate after a progressive training program. The article designed a study that hypothesized that not all individuals would experience a decrease in initial loading rate facilitated by increased ankle plantar flexion after a progressive barefoot running program but would further a relationship that exist between changes in initial loading and sagittal ankle

In this essay the author will take a brief look at the structure of the foot and then describe the muscles involved in dorsiflexion of the foot and the changes that occur in the lower limb.

Kernozek T, Durall CJ, Friske A, Mussallem M. Ankle Bracing, Plantar-Flexion Angle, and Ankle Muscle Latencies During Inversion Stress in Healthy Participants. Journal of Athletic Training. 2008;43(1):37-43. doi:10.4085/1062-6050-43.1.37.

Jackson, A.W., Baker, A.A. (1986). The Relationship of the Sit and Reach Test to Criterion Measures of Hamstring and Back Flexibility in Young Females. Research Quarterly for Exercise and Sport, 57 (3), 183-186.

Background: The most common way to sprain an ankle in basketball is to step on someone else’s foot, or to plant and to turn the wrong way.