Repeated Measures Design

Harder surfaces cause a greater impact forces applied on the body (Newton’s third law of motion). This depends on the speed of running, on running surfaces and shoes, therefore forces on the joints can rise by up to 7-14 times of the body weight which could prompt to intense injuries.

Twisting, bending, and pressing on a walking shoe is a way in which to test the shoe’s:

Also a repeated measure ANOVA was used to test differences between footwear conditions in eccentric and concentric phases by intensity. Using ANOVA versus conducting multiple T-test was a benefit to the study. ANOVA decreases the chance of making a type 1 error. If there was statistical significance identified from the analysis a post hoc test was ran to help identify where the significance came from. In this study statistical analysis was performed using PASW

The study will be a single-centered, crossover, randomized control trial which will aim to determine which foot condition, barefoot or shod, allows for best performance of the SEBT. The dependent variable is reach distance. The independent variable is the differing foot conditions, barefoot versus shod. The SEBT will produce continuous, ratio data measured in centimeters. A quantitative primary research approach will be used as quantitative measurements allow for statistical comparison between variables, which will allow the hypothesis to be accepted or rejected (Barker et al., 2016). 1:1 block randomization will be used in this study, with participant being randomly assigned to either barefoot or shod first groups of equal sizes using the crossover design. Randomization

Based on the UCL of 10.375 and the LCL of 9.625, samples that fall out of the range are consider to be out of control. The current Control Limits for Shoe Sole Height Samples are between 9.625 and 10.375. Some selections within the 15 hour period fall out the upper and lower control limits. The samples are out of control within the hours of 13 and 14. . As a result, the work for hours 13 and 14 should be examined to control limits.

Instruct the patient to wear non-skid footwear, considering the type and condition of footwear such as ill-fitting shoes or incompatible soles

This article is about the fast growing technique of endurance running, which has evolved over the years significantly. Although it may seem like a bit trendy and popular, this particular type of running has its pros and cons. Due to the fact that endurance running includes a various amount of repetitive ground impact forces, it is not unlikely for one to develop a stress injury to the lower leg. In order to decrease the risk that comes along with endurance running, preventative measures should be enforced. When running some of the most common injuries that one may be at risk for are patellofemoral pain syndrome, tibial stress fractures, plantar fasciitis, and Achilles tendonitis. But in this article, a new study suggests that Barefoot running contains the potential to promote the healing process, increase performance, and decrease injury rates. Still to this day disagreement exists as to whether barefoot/minimalist running stimulates healing, increases performance and decreases injury rates.

The participants ran for five minutes at there own pace to warm up. To randomize the order the participants were randomly assigned which condition to complete first, barefoot vs. shod. During the experiment the participants ran for two minutes at 3.05 m*s^-1, rested for two minutes, then ran for two minutes at Then had a two-minute rest period and completed the same procedure for the other condition. Each participants stride length was assessed using the distance measured between the first and second initial contact of the left foot.

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

Six standing trials include 1) single dominant leg stance on a firm surface (SDFS), 2) single non-dominant leg stance on a firm surface (SNDFS), 3) double leg stance on a firm surface (DFS), 4) single dominant leg stance on a wobble board (SDWB), 5) single non-dominant leg stance on a wobble board (SNDWB), and 6) double leg stance on a wobble board (DWB). The order of the standing trials will be randomized. A two minute testing period will be recorded for each standing condition. During testing, participants will be instructed to position barefoot with the hands akimbo for as still as possible for both a firm surface and a wobble board conditions. During all one leg stance trials, participants will be instructed to flex the knee of the contralateral

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

Literature Review: The aim of the research carried out by Lung, Chern, Hsieh, and Yang (2008), was to investigate the differences in gait patterns between dancers and non-dancers. This study hypothesized that gait patterns in dancers will be significantly different to non-dancers. Thirty-three subjects were recruited for the purposes of the study. Thirteen of the subjects were dancers and twenty of the

Participating in basketball begins with picking which basketball shoes to wear. The purpose of a sports shoe is to improve performance or reduce the risk of injury (Fong, Hong & Li, 2007). While playing the game of basketball I’ve realized it is a sport that involves different types of shoes which help improve jumping, landing, cutting and much more. Basketball has its positives and negatives for every age group; it has good health benefits, but it also consists of moderate to high risk lower body injuries to the lower back, legs and ankles. There are different types of basketball shoes which consist of high tops, mid tops, low cuts, cushioned shoes, non-cushioned shoes, and other different combinations. The high tops basketball shoe will have a collar that goes above the ankle like a sleeve. The mid tops basketball shoe covers slightly above the ankle, but lower than high tops. The low cut basketball shoes don’t have a collar at all and they don’t cover the ankle. Shoes also vary by weight and outsole traction. Through my knowledge picking the shoe to wear is solely on your preference. Whatever shoe that you choose will have different advantages or disadvantages to them. The purpose of this literature review is to explore the variety of effects specific shoe types have on basketball athletes.

Anatomical and tracking markers are used in infra-red light motion analysis to measure 3D displacement of tracking markers attached to Abnormal loading of the knee can cause knee joint injuries or disease. Tracking markers are placed on each thigh and shank laterally by adhesive coban tape to reflect infra-red light for tracking. Infra-red light is emitted by 9 cameras which are also responsible for detection of the reflected infra-red light. Anatomical markers are used as reference point for anatomical calibration by using a marked pointer. Anatomical markers are typically placed at the medial and lateral epicondyle gap. 3 bony landmarks can be marked to establish a segmental body axis system. Coordinates of the 3 segmental bony landmarks to tracking marker axis systems within the global coordinate system can then be related together. By assuming rigid body, fixed bony axis systems are then developed in relation to the tracking marker axis systems. Finally, during the walking trial, position of tracking markers relative to the global coordinate system can be measured.

The final element that was tested against the baseline reflex was the influence of fatigue on the strength of the reflex response. This was achieved by having the subject run up and down three levels of stairs three times in the Frost building stairwell of Holyoke Community College. The subject immediately came back to the original sitting position on the edge of the lab bench with legs dangling freely, and the patellar tendon was tapped once more.