None listed
Conditions
Brief summary
The injury of the anterior cruciate ligament (ACL) is a typical injury of the knee joint that occurs during sports. According to recent studies, ACL injury mechanisms are multifactorial, resulting from the interplay of various factors. One potential injury risk factor of the ACL is limited ankle dorsiflexion. Dorsiflexion range of motion may alter lower-extremity landing mechanics in a manner, which predisposes athletes to injury. Our purpose is to clarify the effect of stretching by evaluating landing task biomechanics related to ACL injury before and after ankle dorsiflexion stretching.
Interventions
The purpose of this study is to analyze the biomechanics of landing before and after calf stretching for healthy athletes with limited ankle dorsiflexion. Participants will be divided into two groups; intervention (calf stretching) and control (arm stretching). The training program will involve 30 sessions consisting of a total of 10 minutes static stretching performed five times a week for 6 weeks. The program will be demonstrated by a physiotherapist at the beginning of the trial and a printou
The purpose of this study is to analyze the biomechanics of landing before and after calf stretching for healthy athletes with limited ankle dorsiflexion. Participants will be divided into two groups; intervention (calf stretching) and control (arm stretching). The training program will involve 30 sessions consisting of a total of 10 minutes static stretching performed five times a week for 6 weeks. The program will be demonstrated by a physiotherapist at the beginning of the trial and a printout with the exercises will be provided to participants so that they can perfrom at home. The calf muscles of both legs will be stretched in four different positions. Each stretch will last 30 s for each position with a rest period of 30 s between stretches. Each stretch will be performed at the maximum dorsiflexion tolerated by the subjects. The following exercises will be used: (1) standing calf stretch, (2) standing calf stretch with foot on wall, (3) long sitting calf stretch, (4) standing calf stretch on step. A daily exercise check list will be used to monitor compliance.
Sponsors
Mei Ganse
Study design
Allocation
Randomised controlled trial
Intervention model
Parallel
Primary purpose
Prevention
Masking
Open (masking not used)
Eligibility
Sex/Gender
All
Age
20 Years to 35 Years
Healthy volunteers
Yes
Inclusion criteria
A. Participant is willing and able to give informed consent for participation in the study. B. Male or Female, aged 20 to 35 years old. C. Judged with limited ankle dorsiflexion: We will screen 100 healthy college students without orthopedic diseases and injuries of the lower limb and enroll the 30 participants with the most limited ankle dorsiflexionas determined by an inclinometer that mesures standing ankle dorsiflexion. D. Participants able to perform physical activity such as jump test task.
Exclusion criteria
A. Pregnancy during the course of the study. B. Any other significant disease or disorder which, in the opinion of the Investigator, may either put the participants at risk because of participation in the study, or may influence the result of the study, or the participant’s ability to participate in the study. C. Participants are not able to perform the tasks and present other condition as pain of the knee joint, presence of neurological diseases, or inflammatory processes. D. Participants who received oral steroids, steroid injection, opiate treatment, acupuncture or physiotherapy during the last 6 months.
Outcome results
None listed