Lower extremity muscle activation onset times during the transition from double-leg stance to single-leg stance in anterior cruciate ligament injured subjects

Dingenen, Bart; Janssens, Luc; Luyckx, Thomas; Claes, Steven; Bellemans, Johan; Staes, Filip

doi:10.1016/j.humov.2015.09.007

Cited by 16 publications

(14 citation statements)

References 77 publications

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“…Nevertheless, during athletic activities it is highly important to be able to redirect attention to the most relevant environmental cues. Several studies have shown that the performance on postural control tasks decreases significantly more in ACL injured and ACLR patients compared to healthy controls when the neurocognitive loading increases [52,53,[75][76][77][78][79]. This can be established by including temporal constraints, distracting or occluding the visual system, increasing the level of task uncertainty, performing dual tasks or including fatigue, psychological stressors, decision-making or combinations of those factors in RTS tests.…”

Section: Task and Environmental Constraintsmentioning

confidence: 99%

Optimization of the Return-to-Sport Paradigm After Anterior Cruciate Ligament Reconstruction: A Critical Step Back to Move Forward

2017

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Athletes who have sustained an anterior cruciate ligament (ACL) injury often opt for an ACL reconstruction (ACLR) with the goal and expectation to resume sports. Unfortunately, the proportion of athletes successfully returning to sport is relatively low, while the rate of second ACL injury has been reported to exceed 20% after clearance to return to sport, especially within younger athletic populations. Despite the development of return-to-sport guidelines over recent years, there are still more questions than answers on the most optimal return-to-sport criteria after ACLR. The primary purpose of this review was to provide a critical appraisal of the current return-to-sport criteria and decision-making processes after ACLR. Traditional return-to-sport criteria mainly focus on time after injury and impairments of the injured knee joint. The return-to-sport decision making is only made at the hypothetical 'end' of the rehabilitation. We propose an optimized criterion-based multifactorial return-to-sport approach based on shared decision making within a broad biopsychosocial framework. A wide spectrum of sensorimotor and biomechanical outcomes should be assessed comprehensively, while the interactions of an individual athlete with the tasks being performed and the environment in which the tasks are executed are taken into account. A layered approach within a smooth continuum with repeated athletic evaluations throughout rehabilitation followed by a gradual periodized reintegration into sport with adequate follow-up may help to guide an individual athlete toward a successful return to sport.

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Section: Task and Environmental Constraintsmentioning

confidence: 99%

Optimization of the Return-to-Sport Paradigm After Anterior Cruciate Ligament Reconstruction: A Critical Step Back to Move Forward

2017

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“… 11 13–15 Similarly, lower amplitudes in the gastrocnemius muscles, also found in the present study, have previously been found in individuals with ACL injury. 8 Although the same assessments were not used, the lower amplitude at weight-transfer initiation in distal muscles in the present study might be put into the context of the results of Dingenen et al , 16 describing delayed onset in the gastrocnemius and tibialis anterior muscles when comparing individuals with ACL injury to controls performing a weight-transfer task. However, no differences were found by Dingenen et al in the peroneus longus muscle.…”

Section: Discussionmentioning

confidence: 67%

“…6 7 19 This emphasises the importance of muscular activity at movement initiation, and previous studies have shown that timing and magnitude of muscle activity is of importance in movement initiation. 11 16 20 However, associations between initial muscular activity and altered movement patterns in individuals with ACL injury have, to the best of our knowledge, not been investigated. Therefore, to further investigate factors that may contribute to altered movement patterns, we assessed muscular activity at weight-transfer initiation from double-leg to single-leg stance simulating the start of the SLS, and scored altered movement patterns observed during the performance of SLS and also four other test movements included in the TSP.…”

Section: Introductionmentioning

confidence: 99%

Associations between altered movement patterns during single-leg squat and muscle activity at weight-transfer initiation in individuals with anterior cruciate ligament injury

Trulsson

Miller

Gummesson

et al. 2016

BMJ Open Sport Exerc Med

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BackgroundLittle is known about factors contributing to the altered movement patterns observed in many individuals with anterior cruciate ligament (ACL) injury. We addressed whether altered muscular activity is such a factor.Methods16 participants with unilateral, non-reconstructed ACL rupture were scored for altered movement patterns according to Test for Substitution Patterns (TSP), which includes the single-leg squat (SLS). Surface electromyography (SEMG), was recorded in the lower extremities at initiation of weight-transfer from double-leg to single-leg stance (eyes closed), simulating the initiation of an SLS. Normalised SEMG amplitudes 200–300 ms after weight-transfer initiation were compared between injured and non-injured sides, and correlated to the TSP scores for the SLS. Peak absolute SEMG amplitudes during 5 TSP test movements were also compared between sides.ResultsAt weight-transfer initiation, muscle activity was lower in the tibialis anterior, gastrocnemius and peroneus longus muscles on the injured side. Low muscle activity correlated moderately to worse TSP scores for the SLS for the gluteus medius (rs=−0.56, p=0.03), and gastrocnemius muscles (rs=−0.56, p=0.02). Median peak absolute amplitude during TSP movements was lower in the quadriceps, gastrocnemius and peroneus longus muscles on the injured side.ConclusionsThe altered patterns of muscle activity at weight-transfer initiation, correlations between lower activity at movement initiation and altered movement patterns during SLS and the altered peak amplitudes during TSP movements together indicate alterations in sensorimotor control that may contribute to the observed altered movement patterns. Future studies will determine if exercises targeting muscle activity initiation should complement customary ACL injury rehabilitation.

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“…In patients with ACL injury, reduced dorsiflexion of the ankle joint has been observed compared to uninjured controls 28 . Delayed activation of the TA muscle and in the muscles controlling knee movement was also observed in ACL injury patients compared to healthy controls when moving from a double leg stance to single-leg stance 29 . Limitation of laboratory equipment setup prevented analysis of other muscles involved in knee movement (e.g., quadriceps) in the DMM model of post-traumatic OA.…”

Section: Atp2a2:β2mmentioning

confidence: 85%

Impaired muscle function in a mouse surgical model of post-traumatic osteoarthritis

Poel

Levinger

Tonkin

et al. 2016

Osteoarthritis and Cartilage

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Lower extremity muscle activation onset times during the transition from double-leg stance to single-leg stance in anterior cruciate ligament injured subjects

Cited by 16 publications

References 77 publications

Optimization of the Return-to-Sport Paradigm After Anterior Cruciate Ligament Reconstruction: A Critical Step Back to Move Forward

Optimization of the Return-to-Sport Paradigm After Anterior Cruciate Ligament Reconstruction: A Critical Step Back to Move Forward

Associations between altered movement patterns during single-leg squat and muscle activity at weight-transfer initiation in individuals with anterior cruciate ligament injury

Impaired muscle function in a mouse surgical model of post-traumatic osteoarthritis

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