Isokinetic Testing in Evaluation Rehabilitation Outcome After ACL Reconstruction

Cvjetkovic, Dragana Dragicevic; Bijeljac, Sinisa; Palija, Stanislav; Talić, Goran; Radulović, Tatjana; Kosanovic, Milkica Glogovac; Manojlović, Slavko

doi:10.5455/medarh.2015.69.21-23

Cited by 51 publications

(29 citation statements)

References 8 publications

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“…To measure knee strength at 60º/sec, participants performed five consecutive concentric contractions. 19 All subjects began testing on their uninjured side followed by the injured side and the average of the five trials for each side was normalized to body weight and used for data analysis.…”

Section: Biodex Testingmentioning

confidence: 99%

The Relationship Between Pre-Operative and Twelve-Week Post-Operative Y-Balance and Quadriceps Strength in Athletes With an Anterior Cruciate Ligament Tear

Hallagin

Garrison

Creed

et al. 2017

Intl J Sports Phys Ther

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Background: Pre-operative quadriceps strength may have a positive influence on post-operative function and outcomes at time of return to sport. Little consideration has been given to quadriceps strength during the early post-operative timeframes. Twelveweek post-operative anterior cruciate ligament reconstruction (ACL-R) is considered a critical time point for progression in the rehabilitation process. There is currently limited research looking at the relationship between clinical measurements pre-operatively and at 12-weeks following ACL-R. Purpose/Hypothesis:The primary purpose of this study was to examine the differences between Y-Balance Test Lower Quarter (YBT-LQ) and isokinetic quadriceps strength tested pre-operatively and post-operatively following ACL-R (12-weeks). Study Design: Within subject, repeated measuresMethods: Thirty-nine participants (15.6±1.5 y/o) were diagnosed with an ACL tear and were undergoing rehabilitation to return to a sport requiring cutting and pivoting were included. YBT-LQ and isokinetic quadriceps strength were assessed pre-operatively and at 12-weeks after ACL-R. YBT-LQ composite scores were calculated bilaterally and isokinetic quadriceps strength was tested using the Biodex Multi-Joint Testing and Rehabilitation System. Paired T-tests were used to determine mean group differences between YBT-LQ and isokinetic quadriceps strength scores pre-operatively and at 12-weeks post-operative. A Pearson Correlation was performed to determine relationships between variables at both time points.Results: There was a significant improvement in YBT-LQ composite scores from pre-operative to 12-weeks post-operative on both the involved p<0.001) limbs. Quadriceps strength decreased significantly from pre-operative to 12-weeks on the involved limb (Pre-operative: 82.3 ftlbs ± 38.6; 12-weeks: 67.9 ftlbs±27.4, p<0.01), but no differences were found on the uninvolved limb (Pre-operative: 117.3ftlbs ± 42.0; 12-weeks: 121.7ftlbs ± 41.5, p = 0.226). Conclusions:Involved limb quadriceps strength decreases from time of pre-operative to 12-weeks following ACL-R. Level of Evidence: 3

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Section: Biodex Testingmentioning

confidence: 99%

The Relationship Between Pre-Operative and Twelve-Week Post-Operative Y-Balance and Quadriceps Strength in Athletes With an Anterior Cruciate Ligament Tear

Hallagin

Garrison

Creed

et al. 2017

Intl J Sports Phys Ther

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“… 20 Strength and power are important determinants of return to play in athletes, as strength deficits in knee extension and flexion lead to unnecessary stress on the ACL. 22 , 38 , 40 Therefore, isokinetic strength testing is an important aspect of the evaluation of the physical capacities in athletes, 7 as power depends heavily on maximal strength. 42 In addition, isokinetic testing is used in decision making regarding return to sports after ACLR 1 , 30 both in athletes and in the lay population.…”

mentioning

confidence: 99%

Isokinetic Extension Strength Is Associated With Single-Leg Vertical Jump Height

Fischer¹,

Blank²,

Dünnwald³

et al. 2017

Orthopaedic Journal of Sports Medicine

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Background:Isokinetic strength testing is an important tool in the evaluation of the physical capacities of athletes as well as for decision making regarding return to sports after anterior cruciate ligament (ACL) reconstruction in both athletes and the lay population. However, isokinetic testing is time consuming and requires special testing equipment.Hypothesis:A single-jump test, regardless of leg dominance, may provide information regarding knee extension strength through the use of correlation analysis of jump height and peak torque of isokinetic muscle strength.Study Design:Cross-sectional study; Level of evidence, 3.Methods:A total of 169 patients who underwent ACL reconstruction were included in this study. Isokinetic testing was performed on the injured and noninjured legs. Additionally, a single-leg countermovement jump was performed to assess jump height using a jump accelerometer sensor. Extension strength values were used to assess the association between isokinetic muscle strength and jump height.Results:The sample consisted of 60 female (mean age, 20.8 ± 8.3 years; mean weight, 61.7 ± 6.5 kg; mean height, 167.7 ± 5.3 cm) and 109 male (mean age, 23.2 ± 7.7 years; mean weight, 74.6 ± 10.2 kg; mean height, 179.9 ± 6.9 cm) patients. Bivariate correlation analysis showed an association (r = 0.56, P < .001) between jump height and isokinetic extension strength on the noninvolved side as well as an association (r = 0.52, P < .001) for the involved side. Regression analysis showed that in addition to jump height (beta = 0.49, P < .001), sex (beta = –0.17, P = .008) and body mass index (beta = 0.37, P < .001) affected isokinetic strength. The final model explained 51.1% of the variance in isokinetic muscle strength, with jump height having the strongest impact (beta = 0.49, P < .001) and explaining 31.5% of the variance.Conclusion:Initial analysis showed a strong association between isokinetic strength and jump height. The study population encompassed various backgrounds, skill levels, and activity profiles, which might have affected the outcome. Even after controlling for age and sex, isokinetic strength was still moderately associated with jump height. Therefore, the jump technique and type of sport should be considered in future research.

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“…Las pruebas isocinéticas son muy útiles para evaluar la estabilidad dinámica de la articulación una vez finalizados los procesos operatorio y postoperatorio, ayudando a planificar el tratamiento 31 .…”

Section: Proceso De Rehabilitaciónunclassified

Prevención y tratamiento de lesiones de ligamento cruzado anterior relacionadas con el deporte

Vaamonde¹,

Lozano²,

Domínguez³

et al. 2019

Rev And Med Dep

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El ligamento cruzado anterior de la rodilla, debido a sus características anatómicas, es una de las estructuras más vulnerables y, por ende, con mayor probabilidad de sufrir lesiones. En el ámbito deportivo la lesión de este elemento puede llegar a suponer el 50-60% del total de todas las lesiones que requieren cirugía. A pesar de todos los esfuerzos preventivos y las numerosas técnicas quirúrgicas que existen actualmente, continúa siendo difícil el disminuir la tasa de incidencia de rotura debido a su alta exposición. El objetivo en el programa de rehabilitación consta de una preparación del paciente y su rodilla previa a la cirugía, una restauración de la flexo-extensión post cirugía y finaliza con un protocolo de rehabilitación acelerada de la estabilización y el control dinámico de la articulación, el cual es fundamental para recuperar la función normal y devolver, de manera exitosa, al paciente a la actividad deportiva.

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Isokinetic Testing in Evaluation Rehabilitation Outcome After ACL Reconstruction

Cited by 51 publications

References 8 publications

The Relationship Between Pre-Operative and Twelve-Week Post-Operative Y-Balance and Quadriceps Strength in Athletes With an Anterior Cruciate Ligament Tear

The Relationship Between Pre-Operative and Twelve-Week Post-Operative Y-Balance and Quadriceps Strength in Athletes With an Anterior Cruciate Ligament Tear

Isokinetic Extension Strength Is Associated With Single-Leg Vertical Jump Height

Prevención y tratamiento de lesiones de ligamento cruzado anterior relacionadas con el deporte

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