Mark A. Merrick
Ohio State University
UltrasoundPhysical therapyTherapeutic ultrasoundMedicinePhysical medicine and rehabilitation
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Publications 34
CONTEXT: Athletes in combat sports who have sustained facial hematomas during competition have traditionally been treated with an enswell. These treatments take place between rounds of the competition and generally last less than 60 seconds. The efficacy of this modality has not been studied. Other modalities may provide a more effective cryotherapy treatment in this timeframe. OBJECTIVE: To compare the efficacy of different forms of rapid cryotherapy to cause surface temperature changes of the ...
Context: Ice, compression, and elevation, or ICE, is a widely used treatment for acute musculoskeletal injuries. The effects of ice and compression on tissue temperatures have been established, but whether elevation during cryotherapy affects temperature change has not. Elevation has potential to alter local perfusion and thereby alter the balance of heat loss/heat gain, potentially impacting tissue cooling during cryotherapy. Objective: To measure the effect and interaction of ice, compression,...
1 CitationsSource
Clinical Scenario:In wrestling, athletes often support a large amount of weight on their heads or are forced into extreme ranges of motion. These suboptimal movement conditions lead to a high prevalence of neck injuries in wrestlers. A large portion of the work done by the cervical musculature in wrestling is theorized to be eccentric or isometric types of contractions. Strengthening of these cervical muscles is clinically considered to play a vital role in being competitive on the wrestling mat...
#1Shufang Chang (OSU: Ohio State University)H-Index: 8
#2Ting Si (OSU: Ohio State University)H-Index: 15
Last. Ronald X. Xu (OSU: Ohio State University)H-Index: 20
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We synthesized multifunctional activatible microbubbles (MAMs) for ultrasound mediated delivery of oxygen and drugs with both ultrasound and fluorescence imaging guidance. Oxygen enriched perfluorocarbon (PFC) compound was encapsulated in liposome microbubbles (MBs) by a modified emulsification process. DiI dye was loaded as a model drug. The ultrasound targeted microbubble destruction (UTMD) process was guided by both ultrasonography and fluorescence imaging modalities. The process was validate...
14 CitationsSource
Context: Acute musculoskeletal-injury management largely focuses on inhibiting secondary injury, although the data describing secondary injury and the timeline for its progression are sparse. Objective: To describe the timeline and early progression of secondary injury in skeletal muscle over the first 5 h after blunt trauma. Design: A controlled laboratory study with 2 independent variables (injury status and postinjury time point) in a 2 × 21 factorial. Setting: University research laboratory....
6 CitationsSource
#1Nicole M. McBrier (PSU: Pennsylvania State University)H-Index: 4
#2Jaimy M. Lekan (Baldwin Wallace University)H-Index: 2
Last. Mark A. Merrick (OSU: Ohio State University)H-Index: 18
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Abstract McBrier NM, Lekan JM, Druhan LJ, Devor ST, Merrick MA. Therapeutic ultrasound decreased mechno-growth factor messenger ribonucleic acid expression after muscle contusion injury. Objective To examine the influence of nonthermal ultrasound on mechano-growth factor (MGF) messenger ribonucleic acid (mRNA) expression after blunt trauma. Design A 2×4 factorial multivariate analysis of variance design. Setting University research laboratory. Animals Thirty-six 3- to 4-month-old male Wistar rat...
26 CitationsSource
#1Mitchell L. Cordova (UNCC: University of North Carolina at Charlotte)H-Index: 27
#2J. L. DorroughH-Index: 1
Last. Mark A. Merrick (OSU: Ohio State University)H-Index: 18
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The purpose of this study was to evaluate the effects of ankle bracing on rearfoot angular displacement and angular velocity during a sudden inversion movement. A 1 x 3 factorial design was used. The single independent variable was ankle brace condition with three levels: semi-rigid, lace-up and control. The two dependent variables were rearfoot average angular displacement and average angular velocity. Twenty-four healthy volunteers participated in this study. A motion analysis system was used ...
23 CitationsSource