الفهرس 
الإطار العام للبحثيوجد فقط 14 صفحة متاحة للعرض العام
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المستخلص
Research Introduction Some physical sports practitioners are exposed during training and during competitions to many injuries, including major injuries and small injuries, as sports injuries represent one of the main obstacles that prevent achieving the expected dynamic development of the heroic level, which aims to grow during the phased development processes of sports training that is regulated in a scientific manner. purposeful. The knee joint is one of the most complex joints of the human body, because the anatomical composition determines its function, as it is responsible for many different movements that place a burden on this joint and expose it continuously to injury that may lead to disability in the skeletal and muscular systems. In addition, injuries in the sports field are many and varied and differ from one sporting activity to another, and due to the presence of the player in a state of continuous competitions, the athlete is exposed to injuries of all kinds and degrees, whether in the bones, joints, ligaments or muscles, which may lead to depriving the player of sports practice for long periods that may affect negatively On the physical and skill level of the player, and the appropriate rehabilitation followed after the injury is one of the main reasons for restoring the affected area to its full function, which results in the player returning early to practice sports activity in a good way. Arnheim Daniel (2007) points out that by reviewing the different aspects of the nature of sports performance and what it requires of friction and contacts between the players, in addition to the speed of motor performance from the continuous and rapid changes in the position of the body, according to the conditions of play, so the biggest obstacle is the weight of the body during rotations and changes in positions that occur. on the knee join We also find that the increase in knee joint injury in the recent period has become a widespread phenomenon that has medical and technical dimensions, which led to the establishment of a global organization in the name of (The International Knee Injuries Association) in order to develop medical and diagnostic examination and use effective treatment and the fastest and best rehabilitation methods for the joint in order to ensure its return to movement nature in the shortest possible period. Mohamad Al-Rafaidi (2007) adds that the anterior cruciate ligament injury is one of the most common injuries to the knee and the most affecting the functional performance of the knee through daily activities. As for treatment, surgical intervention using the surgical endoscope is considered one of the most appropriate and widespread methods, and after that comes the stage of physical therapy and rehabilitation. Movement that is no less important than the surgical intervention step. Ellison Martin (2005) mentions that proper rehabilitation is the key to good results, whether the injury is mild, or in the surgical repair of the knee.Research problem: Sports injuries are considered an obstacle that affects the locomotor system, including (bones, joints, muscles, nerves), which hinders the dynamic development of the athlete’s level and prevents him from continuing in training performance, friendly participation, and official competitions. Often the injury occurs suddenly, which makes predicting its location and time of occurrence extremely difficult. Difficulty is a satisfactory condition. Gregory Green (2004) mentions that the knee joint is one of the joints most exposed to injuries, which leads to inability to move and maintain body balance, as a result of the rupture of one of the ligaments or cartilages.And as Cook christopher (2007) explains, the knee joint is one of the body’s most vulnerable joints, and perhaps this is due to the anatomical aspect of the knee joint having a great deal in that. Just the strength of the ligaments and the muscles surrounding it make it one of the strongest joints in the body.As Fahd Al-Shehri (2005) mentions, the anterior cruciate ligament injury is one of the direct causes of a defect in the knee joint during movement, and in addition to that, any major injury, if not treated in a short period, results in other injuries to the joint. And through the work of the researcher in the field of rehabilitation and sports injuries as an injury and rehabilitation specialist at Al-Ganzouri Specialist Hospital and Egypt Center for Electrodiagnostics, Rheumatology and Rehabilitation(MEDX) in Heliopolis, Cairo Governorate, in which he rehabilitated some people who were subjected to ligament cuts.The anterior cruciate ligament of the knee joint, the researcher noticed that all the available rehabilitation programs did not use the biofeedback device, which enriched the researcher’s attention, which made him conduct the current study in order to reach the preparation of a rehabilitation program using the biofeedback device and to identify its effect on the rehabilitation of the anterior cruciate ligament of the knee joint after Surgical intervention.The researcher noticed a lack and shortcomings in the rehabilitation methods used to rehabilitate the knee joint affected by a cut in the anterior cruciate ligament, especially after the surgery. To use a biofeedback device in addition to kinetic and rehabilitative exercises.Through the researcher’s review of studies and reference research related to this research and research related to this field, he found that there is little interest in the research that dealt with the use of biofeedback as a standardized method for the use of therapeutic exercises during the application of rehabilitation programs for patients with anterior cruciate ligament rupture, in addition to the lack of sports libraries for this type of Research in the field of sports injuries and sports rehabilitation. This prompted the researcher to try to conduct applied research based on scientific foundations and principles aimed at developing a rehabilitation program for the rupture of the anterior cruciate ligament using the biofeedback device. Department of Sports Health Sciences, which prompted the researcher and the supervisors to ask the following question: What is the effectiveness of a rehabilitation program using a biofeedback device to restore the efficiency of the knee joint after an anterior cruciate ligament repair?Research Importance: Scientific Significance:The scientific importance of this study is that it is one of the scientific attempts to study the effectiveness of a rehabilitation program using the biofeedback device to restore the efficiency of the knee joint after performing the repair of the anterior cruciate ligament. This rehabilitation program is also considered one of the modern programs in which the researcher used: Modern devices to reach the best possible results.Rehabilitation exercises and the use of tools.Returning people to the same level they were before the injury in the shortest possible time.Applied importance:The applied importance of this research is as follows:Reducing the degree of pain.2- Improving the measurement of the thigh muscles at 5, 10, and 15 cm, and improving the measurement of the quadriceps muscle at 10 cm.3- Improving the motor range when performing the gripping and stretching movements.4- Improving the muscle strength working on the knee joint when the gripping and extension movements using the biofeedback device.Research AimsThe research aims to know the effectiveness of a rehabilitation program using the biofeedback device to restore the efficiency of the knee joint after performing the repair of the anterior cruciate ligament by identifying:1- The circumference of the thigh muscles is (5-10-15) cm, and the circumference of the quadriceps muscle is (10) cm.2- The muscular force acting on the knee joint during the gripping and extension movements.3- The range of motion of the knee joint when performing the gripping and extension movements.4- The degree of pain level.Research hypotheses1- There are statistically significant differences between the three research measurements (pre, intra, post) in favor of the post measurement in the circumference of the thigh muscles at (5, 10, 15) cm and the circumference of the twin muscle at (10) cm.2-There are statistically significant differences between the three research measurements (pre, intra, and post) in favor of the post measurement in measuring the muscle strength working on the knee joint when the gripping and extension movements.3- There are statistically significant differences between the three research measurements (pre, intra, and post) in favor of the post measurement in measuring the range of motion when performing two movements of grasping and extending the knee joint.4- There are statistically significant differences between the three research measurements (pre, intra, post) in favor of the post measurement in measuring the degree of pain.Search procedures :Research Methodology The researcher used the experimental approach due to its suitability to the nature of the research by applying the measurements (pre, interface, and distance) on one group of non-athletes who had a cut in the anterior cruciate ligament.Research community and sampleresearch community The research community includes (20) individuals with a cut in the anterior cruciate ligament after performing the repair process, and their ages range between 20: 30 years.The research sampleThe research sample includes (7) individuals who had severed the anterior cruciate ligament and were undergoing rehabilitation at Al-Ganzouri Medical Specialist Hospital and Medx Center, and their ages ranged between 20:30 years, divided into 5 individuals as a basic sample and 2 individuals as an exploratory sample, with a percentage of 35 % of the research community.Data collection methods:Search tools and devicesMeasuring devices used in the research:1- A Restameter device for measuring length in centimeters.2- A digital medical scale to measure weight in kilograms.3-A solid measuring tape for measuring circumferences (Tape).4-Isokinetic device for measuring muscle strength.5- Goniometry device to measure the range of motion of the knee joint.6- Biofeedback device7- The stepper for the warm-up process.8- The treadmill.9- Stationary bike.10- Visual symmetry scale to determine the extent of pain.Tools used in the research:1- Bags of crushed ice.2- Sand weights of multiple weights.3- Lumbar pillows.4- Small ground stairs.5- Data form of the injured person.6- Rubber band (Thera Band).7- Push device for the posterior thigh muscle.8- The drive device of the quadriceps femoris muscle and the twins.9- Apparatus for the adductor and abductor muscles of the thigh.Exploratory study:The researcher conducted an exploratory experiment from 1/8/2021 to 11/8/2021 on people outside the research sample who had the same conditions for selecting the original research sample from those with a cut in the anterior cruciate ligament, after the surgical intervention by means of a surgical knee binoculars.Search experience applicationTribal measurementThe researcher conducted tribal measurements for each individual of the sample in the time period from 8/21/2021 AD to 8/25/2021 AD, and it included the following measurements:1- Measuring the degree of pain.2- Measure the circumference of the thigh at (5 cm, 10 cm, and 15 cm).3- Measuring the range of motion of the knee joint when performing the gripping and extension movements.4-Measuring muscular strength.Rehabilitation program applicationThe researcher applied the qualifying program for the sample under study in the time period from 8/28/2021 AD to 2/22/2022 AD. The following is anexample of what was done in the main part of that unit.interfacial measurement:he researcher took the intermediate measurement after completing each stage of the qualification in the same order as the pre-measurement, followed up on each case, and estimated the extent of progress for each case, and it was in the period from 11/15/2021 AD to 11/18/2021 AD.Dimensional measurement The researcher conducted the post-measurement on the last sample after completing the qualifying program in the same order as the tribal and inter measurements, and it was in the period from 2/19/2022 AD to 2/22/2022 AD.Statistical processingIn light of the objective of the research and the application of measurements related to the subject of the research, the researcher recorded the results, dumped the data, and put them in tables to perform the statistical treatment through the SPSS15 statistical program. The data was processed using thefollowing statistical methods:1- Arithmetic mean.2- The mediator.3- Standard Deviation.4- Torsion coefficient.Statistical significance was calculated at a significant level (0.05). Conclusions and recommendationsFirst: Conclusions:In light of the objective of the research and its hypotheses and within the limits of the nature of the sample, and based on the statistical treatments of the results and their interpretation, the researcher concluded that the positive effect of the rehabilitation program on the effectiveness of a rehabilitation program using the biofeedback device to restore the efficiency of the knee joint after performing the repair of the anterior cruciate ligament leads to:1- Reducing the degree of pain.2- An improvement in the circumference of the thigh muscles at (5 cm, 10 cm, 15 cm)3- The range of motion of the knee joint improved when contracting and extending the knee joint.4- Improve the muscle strength of the knee joint muscles.Second: Recommendations:Through the results of the study, the researcher recommends the following:1- The inference of the proposed rehabilitation program when rehabilitating the anterior cruciate ligament injury after the endoscopic surgical intervention.2- Paying attention to rehabilitative exercises for individuals who have cut the anterior cruciate ligament in light of the nature of daily activity.- Using modern devices such as the biofeedback device.4- Conducting more research in the field of injuries and physical rehabilitation for knee joint injuries using the latest measurement and rehabilitationequipment.