The Effect of Six Weeks Talent Diagnose System (Tds) Jump Training on Muscle Reaction Time After Surgical Reconstruction of the Acl.
The effect of six weeks talent diagnose system (tds) jump training on muscle reaction time after surgical reconstruction of the acl.
Br J Sports Med. 2013 Jul; 47(10): e3
Jin Hong K, Jung Sok O, Dong Kyu L, Byung Roh K, Moon Jib Y, Joong Bae S, Yun-A S, Hoseong L
Neuromuscular training protocols that plyometrics, dynamic balance exercises, agility training, etc, can significantly improve biomechanics and neuromuscular performance and reduce anterior cruciate ligament (ACL) injury risk in athletes.(1 2) OBJECTIVE: The purpose of this study was to investigate the effect of 6weeks TDS Jump training on muscle reaction time after surgical reconstruction of the ACL.Seven patients men 12 to 36 months following reconstructive ACL operation continuously participated TDS Jump training at seven sets of five times (7 sets×5 times=35 jumps), 3 days/week, for 6 weeks. Premotor reaction time (PRT) of vastus medialis (VM), vastus lateralis (VL), hamstring medialis (HM), and hamstring lateralis (HL) were recorded by electromyography through the examination sudden knee eversion stress. Two physical therapists evaluated each subject’s performance ability using a talent diagnose system (TDS Jump).PRT of all tested muscles were significantly decreased after both three and six weeks of TDS Jump training than at before training (p<.05). Grounding time (TDS Jump) of operated legs was significantly decreased after both three and six weeks of TDS Jump training than at before training (p<.05).These results demonstrated in the present that TDS Jump training could improve PRT and grounding time in operated legs. Therefore, suggested that TDS Jump training applying in not only an assessment of the neuromuscular function after reconstructive ACL operation but also training and rehabilitation. HubMed – rehab
Reporting on acl deficient patients: a function-based return-to-activity algorithm.
Br J Sports Med. 2013 Jul; 47(10): e3
Keller M, Schmidtlein O, Kurz E
The most current follow-up treatments after ACL injuries are time-oriented. The decision-making procedures for return-to-sport are not uniform. The ACL rehabilitation approaches comply mostly with empirical values in time-dependent schemes. However, specific questionnaires and functional assessments become more important during the control of rehabilitation. Therefore this presentation aimed to present a function-oriented return-to-activity algorithm.The 29-year-old male professional soccer athlete with traumatic ACL rupture of the left knee and a bodyweight of 74 kg participated in an active rehabilitation program for a period of five months. The rehabilitation protocol started five days after surgical ACL repair through hamstring tendon. Anamnesis revealed no previous knee injuries and the absence of any further physical complaints. The athlete was free of psycho-social risk factors and showed a very good compliance. The return-to-activity algorithm applied consisted of different tests within four levels. Starting with quasi-static single leg stability measures, the algorithm proceeds with three dynamic hop tests with progressing impact. After ensuring sagittal (single leg hop) and frontal (side hop) planes stability, a multi-planar (square hop) test is performed. The protocol estimates limb symmetry indices (LSI) within each of the four levels. By using this approach, the unaffected side serves as the control. Only athletes who pass the test with a minimum LSI of 90% are allowed to move on to the next level and thus stress the structures with level-specific activities (e.g. cutting movements within the third level).The first level (Y-balance test) was completed two months after operative treatment with an average LSI of 95%, whilst the LSI of the single leg hop for distance (second level) revealed only 50%. After a further period of four weeks, the LSI of the single leg hop test improved considerably to 81%. The athlete reached the predefined boundary of 90% four months after surgery. After that time, initial moderate jogging activities and dynamic exercises were allowed. Five months after the operation, the third (side hop test) and fourth (square hop test) levels revealed an LSI of 99% and 94% respectively. The rehab protocol was now completed and integration into team training could begin.In this case report, an athlete returned to his previous sport level within a period of twenty weeks. The proposed return-to-activity algorithm was easy applicable and helpful to control the different rehabilitation phases. On the basis of such a procedure, individual recommendations are decoupled from time-oriented approaches. Thus musculo-skeletal function becomes a central component in judging progressions during rehabilitation. HubMed – rehab
Evaluation of premotor reaction time, sensation of position and jump performance ability following reconstructive acl operation.
Br J Sports Med. 2013 Jul; 47(10): e3
Hoseong L
Although surgical reconstruction of the anterior cruciate ligament (ACL) is commonly performed to increase stability of the knee, persistent changes in neuromuscular function has frequently been cited as contributing to disability.(1 2) OBJECTIVE: This study investigated neuromuscular function (premotor reaction time, reproductive angle inaccuracy and jump ability) in a sample of patients 12 to 28 months following reconstructive ACL operation. In addition, the effect of leg dominance on neuromuscular function was analyzed in a sample of subjects without knee injury.Ten healthy woman without knee injury and 10 patients following ACL operation participated in the study after they had been screened for neuromuscular function disorders. Premotor reaction time (PRT) of vastus medialis (VM), vastus lateralis (VL), hamstring medialis (HM), and hamstring lateralis (HL) were recorded by electromyography through the examination sudden knee eversion stress. Sensation of position were evaluated as a reproductive angle inaccuracy (RAI) in the difference between a specified angle (15°, 30°, 45°, 60°, and 75°) and the reproduction angle. Two physical therapists evaluated each subject’s performance ability using a talent diagnose system (TDS Jump and TDS Flash Jump).The patients showed a significant increase in reaction time of hamstring operated legs (p<.05), systemic reaction time (TDS Flash Jump) (p<.05), and significant decrease in grounding time (TDS Jump) of operated legs (p<.05). For correlation coefficient, no statistically significant changes were found.It was confirmed that a multi function of neuromuscular had decreased though one year or more passed after ACL reconstructive operation, therefore, should be provide information that recovers a multi function of neuromuscular in rehabilitation after ACL operation. HubMed – rehab