knee kinematics

 Flat foot deformity can cause some changes in the kinematic of the lower limbs and, as a result, increase the probability of injury in the knee joint. Considering the benefits of using ankle kinesio tape (KT) in correcting the feet position, the aim of this study was to answer the question of whether the use of ankle KT in flat footed people can change the knee joint kinematics during a functional task or not.

In this quasi-experimental study, 30 males with flat feet were selected purposefully and evaluated in three times (pre-test, immediately after ankle KT and 30 minutes after that). The investigated kinematic indicators included valgus and knee flexion angles during the consecutive jump task, which were evaluated using two-dimensional methods and Kinovea software. Finally, a Repeated Measures ANOVA test was conducted to compare the obtained data from multiple times of assessment.

Data analysis showed a significant difference between knee valgus angle before and immediately after ankle KT (P<0.05). However, the changes in knee flexion angle before and immediately after KT were not significant (P>0.05). The results also showed no significant difference between the research variables before and 30 minutes after ankle KT (P>0.05)

Based on the results of this study, it can be recommended to flat footed people to use of ankle KT and improve their knee kinematics for preventing its possible injuries, while in order to reach the maximum efficiency in improving knee kinematics, they should pay attention to other interventions other than use of KT.

 The knee joint injury in judokas mostly occurs in the standing position. This study aims to investigate the relationship between kinematic variables of trunk and the occurrence of knee injuries in male judokas.

 In this study, 15 male judokas aged 20-30 years (7 with a history of knee joint injury and 8 controls) were selected based on the inclusion and exclusion criteria. Then, after installing markers on their body, they were asked to stand on a 30-cm box and, after a jump upwards, land on the ground on one foot (the support foot). Cameras were used to measure the angles of the knee and trunk joints during the jump landing task. Shapiro-Wilk test was used to examine the normality of data distribution. ANCOVA was used to compare the groups. The ssignificance level was set at 0.05.

 Healthy judokas had lower knee flexion angle and higher knee valgus angle. Moreover, they had lower trunk flexion angle, higher internal knee rotation, and higher relative rotation speed between femur and tibia compared to the injured group (P<0.05).

 Male Judo players with a history of knee injury have lower knee flexion and greater knee valgus, lower trunk flexion, higher internal knee rotation, and higher relative rotation between femur and tibia compared to their healthy peers. Professionals and coaches need to design injury prevention exercises for this group of athletes.

Genuvarum is a common complication among girls aged 12-16 years. This study aimed to investigate the effect of eight weeks of NASM and Theraband correction exercises on balance and kinematic variables of the knee in girls aged 16-12 years suffering pain due to genuvarum.

The research sample includes 30 of these individuals who were randomly selected and then randomly divided into three groups of 10 controls (age: 14.20 ± 1.31 years, height: 1.59 ± 0.059). M, weight: 54.80 ± 7.61, BMI: 21.26 ± 2.19 kg / m2), Theraband group (age: 14.70 ± 0.94 years, height: 1.61 ± 0.06 M, weight: 54.40 ± 4.37 kg, BMI: 21.51 ± 1.23 kg / m2) and NASM group (age: 14.71 ± 1.16 years, height: 1.66 ± 0.053 M, weight: 56.70 ± 4.47 kg, BMI: 20.52 ± 0.87 kg / m2). In this study, a balance was assessed using the Walking on the balance wood test. Also, the distance between the inner condyle of the femur and the Q angle was measured using a caliper and a goniometer, respectively. After evaluating the variables, the subjects were divided into three groups of control and training, and each training group performed the training program for 8 weeks and 3 sessions per week. The control group also performed their daily activities and physiotherapy at Arman Clinic during this period. In this study, the normality of the distributions was investigated using the Shapiro-Wilk test. To test the research hypotheses under normal conditions, ANCOVA analysis of covariance (between groups) and correlated T (within groups) were used. SPSS software version 26 was used in this study.

The results of this study showed that applying 8 weeks of NASM and Theraband training program in addition to increasing the balance was effective in improving the distance between the condylar and the Q angle (P = 0.001). In the field of comparison between the two training groups, except for the Q angle (P = 0.001), the balance variable and the distance between the condyles were not found (P ≥ 0.05).

In general, the results of the present study show the effect of both NASM and Theraband training programs on balance and improvement of knee kinematic variables; 1- The distance between the inner condyle of the femur, 2- Q angle has been effective. Based on this, it seems that the use of these two training programs in this community can lead to desirable results and shows the importance of using these exercises (especially NASM) in girls suffering genuvarum