Maximal contraction lessens impact response in a muscle contusion model

Crisco, Joseph J.; Hentel, Keith; Jackson, W.O.; Goehner, K.; Jokl, Peter

doi:10.1016/0021-9290(96)00047-4

Cited by 45 publications

(37 citation statements)

References 13 publications

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“…Many different studies have investigated the effect of contraction using a variety of techniques such as ultrasound and motion capture (Blackburn et al, 2009), magnetic resonance elastography (Bensamoun et al, 2006), vibro-ultrasound (Wang et al, 2012) and manual indentation and ultrasound (Zheng et al, 1999); the effects measured varied. Crisco et al, (1996) also observed a 44% reduction in the delay between peak force and peak displacement between contracted and relaxed muscles when testing Wistar rats in vivo; this is an indication of reduced viscoelasticity in contracted muscles. Given no definite characterisation of this effect, a direct measurement by Zheng et al (1999) was used to provide an approximation of the potential stiffness of a contracted skeletal muscle.…”

Section: Structure and Composition Of Organic Muscle Tissuementioning

confidence: 74%

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Development of novel synthetic muscle tissues for sports impact surrogates

Payne

Mitchell

Bibb

et al. 2015

Journal of the Mechanical Behavior of Biomedical Materials

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Impact injuries are commonplace in sport and often lead to performance detriment and debilitation. Personal Protective Equipment (PPE) is prescribed as a mandatory requirement in most sports where these impacts are likely to occur, though the methods of governance and evaluation criteria often do not accurately represent sports specific injury scenarios. One of the key shortcomings of such safety test standards is the human surrogate to which the PPE is affixed; this typically embodies unrepresentative geometries, masses, stiffness and levels of constraint when compared to humans.A key aspect of any human surrogate element is the simulant material used. Most previous sports specific surrogates tend to use off-the-shelf silicone blends to represent all the soft tissue structures within the human limb segment or organ; this approach potentially neglects important human response phenomena caused by the different tissue structures.This study presents an investigation into the use of bespoke additive cure Polydimethysiloxane (PDMS) silicone blends to match the reported mechanical properties of human relaxed and contracted skeletal muscle tissues. The silicone simulants have been tested in uniaxial compression through a range of strain rates and fit with a range of constitutive hyperelastic models (Mooney Rivlin, Ogden and Neo Hookean) and a viscoelastic Prony series.

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Section: Structure and Composition Of Organic Muscle Tissuementioning

confidence: 74%

“…Some previous research has concluded that contracted muscle is less susceptible to injuries than relaxed muscle (Crisco et al, 1996;Tsui & Pain, 2008) but this is not necessarily so. Given further research to better quantify the behaviour of contracted muscle new simulants could be formulated with the methods presented.…”

Section: Organic Muscle Tissue Datamentioning

confidence: 95%

Development of novel synthetic muscle tissues for sports impact surrogates

Payne

Mitchell

Bibb

et al. 2015

Journal of the Mechanical Behavior of Biomedical Materials

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“…Patients will present with immediate and often prolonged pain and a significant deficit in contractility in the affected muscle. 31 Joint stiffness and weakness may be long-term sequelae. On ultrasound, a contusion is seen as a focal loss of the normal muscle fibrillar architecture with a heterogeneous region of increased echogenecity, which may cross the fascial boundaries (Figure 3(a)).…”

Section: Muscle Contusionsmentioning

confidence: 99%

Ultrasound of lower limb sports injuries

Purohit

King

2015

Ultrasound

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Musculoskeletal ultrasound utilises high-frequency linear transducers to produce high-resolution images of soft tissue structures. It is an increasingly useful tool in the assessment of both acute and chronic musculoskeletal injuries; it is relatively cheap, portable and can be used to facilitate targeted injections. In this review paper, we aim to provide a summary on the normal and abnormal appearances of skeletal tissue in the setting of acute and chronic lower limb sporting injuries.

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“…[1][2][3][4][5][6][7] Muscle contusion injuries resulting from highenergy impacts that rapidly compress local tissues are common in both the athletic and general populations. Although many devices can mimic the initial impact of this type of injury, they produce only 1 level of severity.…”

mentioning

confidence: 99%

“…Although many devices can mimic the initial impact of this type of injury, they produce only 1 level of severity. [2][3][4][5] Contusions were first introduced as a crush injury with an in situ technique of squeezing the muscle between forceps. 4 Skeletal muscle trauma and inflammation were generated, but this mechanism of injury is quite different from that occurring in contact sports; in addition, it is difficult to elicit a specific level of injury.…”

mentioning

confidence: 99%

Reliability and Validity of a Novel Muscle Contusion Device

McBrier

Neuberger

Okita

et al. 2009

Journal of Athletic Training

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Context: Many models have been employed to replicate skeletal muscle injury associated with trauma; however, most are restricted to 1 level of severity.Objective: To create and validate an injury-producing device that could generate multiple levels of injury severity.Design: Validation study.Patients or Other Participants: Twenty-six male Wistar rats, 3 to 4 months old.Intervention(s): A contusion device was developed and its ability to deliver consistent impacts was validated alone and in the presence of an experimental animal. A free-falling mass (267 g) was adjusted to the desired height (40, 50, 60, or 70 cm) and then dropped.Main Outcome Measure(s): Peak load, peak displacement, impulse, energy, and velocity peak were measured. Injury severity was determined using magnetic resonance imaging.Results: Outcome measures observed from the device alone were different by height (F 18,136 5 21.807, P , .001, 12b 5 1.0). Outcomes using the experimental animals were also dependent on height (F 14,102 5 68.679, P , .001, 12b 5 1.0). Linear regression analyses indicated that height accounted for 17% to 89% of the variance.Conclusions: Mild to moderate and moderate to severe injuries can be replicated with this device, which will be useful in evaluating clinical treatments on acute muscle injury.

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Maximal contraction lessens impact response in a muscle contusion model

Cited by 45 publications

References 13 publications

Development of novel synthetic muscle tissues for sports impact surrogates

Development of novel synthetic muscle tissues for sports impact surrogates

Ultrasound of lower limb sports injuries

Reliability and Validity of a Novel Muscle Contusion Device

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