期刊名称：International Journal of Sport, Exercise and Training Sciences
电子版ISSN：2149-8229
出版年度：2017
卷号：3
语种：English
出版社：Balikesir University
摘要：Athletes who practice contact sports such as soccer,football and basketball are more susceptible to injure their Anterior Cruciate Ligaments (ACL) due to instantaneous loads on the knee joint. This loads generally occur while changing direction rapidly,stopping suddenly,deceleration,incorrectly landing from a jump,direct contact or collusion. When the biomechanical limits of the knee are exceeded,a tear or rupture of the ligament is inevitable. PURPOSE: This study intents to give a brief information about a university level basketball player’s rehabilitation process after an ACL reconstruction surgery. Our main aim was to monitorize the strength and proprioception differences as well as expected improvements during rehabilitation process between injured and non-injured legs. Two parameters have been evaluated mainly;a) isokinetic strength,b) proprioception. METHOD: The athlete was 23 years old and his descriptive statistics were the following ones;height: 172cm,weight: 76kg and training age: 13 years. He had a 3rd grade sprain which means a total rupture. For the reconstruction of his ACL,1/3 part of the tendons of musculus gracilis and musculus semitendinosus have been harvested from him by making a small incision on tibial tuberosity. The two tendons were then looped to create a stranded graft structure. The athlete was able to walk without support ten days after surgery. He performed some functional movements,stretching and massage. After the fifth week,the athlete was performing some pool activities,after the seventh week,all daily activities were normal and he started to perform low intensity jogs,BOSU ball activities and low intensity strength training. Measurements were taken within a month interval. Isokinetic strength values (concentric/concentric) were measured for knee flexion/extension by using ‘‘Isomed2000 isokinetic dynamometer’’ (D&R Ferstl GmbH,Hemau,Germany). Both legs of athlete were tested in 600/sec (5 repetitions),1800/sec (10 repetitions) and 2400/sec (10 repetitions) angular velocities. For proprioception evaluation,a simple angle reproduction test made for a 650 of target knee angle while flexion and extension. Comparisons were made between first/second measurement and injured/non-injured legs. RESULTS and DISCUSSION: Maximum flex/ex torques of injured leg were 63/114 Nm for 600/sec in the first test and increased to 100/186 Nm in the second test. Similarly,it increased from 73/94 to 103/130 Nm for 1800/sec,and from 67/93 to 96/127 Nm for 2400/sec. For proprioception evaluation,it was 130 away from target angle during flexion and 180 away during extension in the first test. There was not a considerable improvement in the second measurement and it was still 90 away from target angle during flexion and 160 away during extension. Unlikely,proprioception sense was better on non-injured leg with a 50 of deviation during flexion and 70 during extension. Strength values of non-injured leg were 144/238 Nm for 600/sec,117/165 for 1800/sec and 124/145 for 2400/sec. Low strength values of injured leg flexors could indicate a muscle rehabilitation process of the gracilis and semitendinosus due to tendon harvest. It is also thought that proprioception sense was not significantly different due to reconstructed joint integrity.
