scholarly journals Failed jump landing trials: deficits in neuromuscular control

2007 ◽  
Vol 18 (1) ◽  
pp. 55-61 ◽  
Author(s):  
E. A. Wikstrom ◽  
M. D. Tillman ◽  
S. Schenker ◽  
P. A. Borsa
Keyword(s):  
Neuromuscular Control ◽  
Jump Landing

Neuromuscular control mechanisms during single-leg jump landing in acute ankle sprain patients

2015 ◽  
Vol 42 ◽  
pp. S83
Author(s):  
F. Zumstein ◽  
L. Allet ◽  
S. Armand ◽  
L. Radlinger ◽  
P. Eichelberger ◽  
...  
Keyword(s):  
Ankle Sprain ◽  
Neuromuscular Control ◽  
Control Mechanisms ◽  
Jump Landing

Examining the Relationship Between a Neuromuscular Control Baseline Battery for Sport-Related Concussion and Anterior Cruciate Ligament Injury Risk

Neurology ◽  
2021 ◽  
Vol 98 (1 Supplement 1) ◽  
pp. S21.2-S22
Author(s):  
Ryan Moran
Keyword(s):  
Anterior Cruciate Ligament ◽  
Lower Extremity ◽  
Cruciate Ligament ◽  
Neuromuscular Control ◽  
Ligament Injury ◽  
Jump Landing ◽  
Eyes Closed ◽  
Eyes Open ◽  
Anterior Cruciate ◽  
The Relationship

ObjectiveTo examine the relationship between the m-CTSIB and Landing Error Scoring System in a sample of collegiate female athletes.BackgroundRecent literature has linked concussion and neuromuscular deficits in the lower extremity after injury. Neuromuscular control is frequently assessed using balance measures for concussion, but also dynamically to identify anterior cruciate ligament injury (ACL) risk via jump-landing movement screening.Design/MethodsThirty-nine healthy, collegiate female soccer (n = 22) and volleyball (n = 17) athletes completed the modified-Clinical Test of Sensory Interaction of Balance (m-CTSIB) and the Landing Error Scoring System (LESS). Measures consisted of total m-CTSIB sway index scores on individual conditions (firm surface eyes open [condition 1] and eyes closed [2], foam surface eyes open [3] and eyes closed [4]), m-CTSIB overall score, and total LESS errors. LESS scores were also categorized into a low (0–4 errors) and high (5 + errors) risk to determine if athletes with worse neuromuscular control on the LESS has worse balance on the m-CTSIB. A Spearman's rank-order correlation was conducted to determine the strength of the relationship between LESS and m-CTSIB performance. A series of Mann-Whitney U test were performed to determine differences between low and high LESS performance on m-CTSIB performance.ResultsThere was a weak, negative correlation between LESS and m-CTSIB performance (rs(37) = −0.153, p = 0.35). Further, there were no differences between the low and high risk LESS groups on sway index scores on conditions 1 (U = 158.5, p = 0.39), 2 (U = 156.0, p = 0.36), 3 (U = 165.5, p = 0.51), or 4 (U = 128.5, p = 0.08), as well as overall m-CTSIB scores (U = 150.5, p = 0.28).ConclusionsThere appears to be a lack of relationship between the LESS and m-CTSIB tests, revealing the independence of static and dynamic lower extremity neuromuscular function. Athletes who may be more at risk for ACL injury due to abnormal jump-landing biomechanics, do not differ from low-risk athletes on baseline balance assessment.

Evaluating the Spectrum of Cognitive-Motor Relationships During Dual-Task Jump Landing

2021 ◽  
pp. 1-8
Author(s):  
Patrick D. Fischer ◽  
Keith A. Hutchison ◽  
James N. Becker ◽  
Scott M. Monfort
Keyword(s):  
Working Memory ◽  
Cognitive Function ◽  
Visual Attention ◽  
Dual Task ◽  
Cruciate Ligament ◽  
Reaction Force ◽  
Neuromuscular Control ◽  
Task Demands ◽  
Jump Landing ◽  
Peak Knee

Cognitive function plays a role in understanding noncontact anterior cruciate ligament injuries, but the research into how cognitive function influences sport-specific movements is underdeveloped. The purpose of this study was to determine how various cognitive tasks influenced dual-task jump-landing performance along with how individuals’ baseline cognitive ability mediated these relationships. Forty female recreational soccer and basketball players completed baseline cognitive function assessments and dual-task jump landings. The baseline cognitive assessments quantified individual processing speed, multitasking, attentional control, and primary memory ability. Dual-task conditions for the jump landing included unanticipated and anticipated jump performance, with and without concurrent working memory and captured visual attention tasks. Knee kinematics and kinetics were acquired through motion capture and ground reaction force data. Jumping conditions that directed visual attention away from the landing, whether anticipated or unanticipated, were associated with decreased peak knee flexion angle (P < .001). No interactions between cognitive function measures and jump-landing conditions were observed for any of the biomechanical variables, suggesting that injury-relevant cognitive-motor relationships may be specific to secondary task demands and movement requirements. This work provides insight into group- and subject-specific effects of established anticipatory and novel working memory dual-task paradigms on the neuromuscular control of a sport-specific movement.

Modulation of Frontal-Plane Knee Kinematics by Hip-Extensor Strength and Gluteus Maximus Recruitment During a Jump-Landing Task in Healthy Women

2013 ◽  
Vol 22 (3) ◽  
pp. 184-190 ◽  
Author(s):  
John H. Hollman ◽  
Jeffrey M. Hohl ◽  
Jordan L. Kraft ◽  
Jeffrey D. Strauss ◽  
Katie J. Traver
Keyword(s):  
Outcome Measures ◽  
Weight Bearing ◽  
Three Dimensional ◽  
Knee Kinematics ◽  
Frontal Plane ◽  
Gluteus Maximus ◽  
Neuromuscular Control ◽  
Knee Motion ◽  
Jump Landing ◽  
Hip Motion

Context:Abnormal lower extremity kinematics during dynamic activities may be influenced by impaired gluteus maximus function.Objective:To examine whether hip-extensor strength and gluteus maximus recruitment are associated with dynamic frontal-plane knee motion during a jump-landing task.Design:Exploratory study.Setting:Biomechanics laboratory.Participants:40 healthy female volunteers.Main Outcome Measures:Isometric hip-extension strength was measured bilaterally with a handheld dynamometer. Three-dimensional hip and knee kinematics and gluteus maximus electromyography data were collected bilaterally during a jumplanding test. Data were analyzed with hierarchical linear regression and partial correlation coefficients (α = .05).Results:Hip motion in the transverse plane was highly correlated with knee motion in the frontal plane (partial r = .724). After controlling for hip motion, reduced magnitudes of isometric hip-extensor strength (partial r = .470) and peak gluteus maximus recruitment (partial r = .277) were correlated with increased magnitudes of knee valgus during the jump-landing task.Conclusion:Hip-extensor strength and gluteus maximus recruitment, which represents a measure of the muscle’s neuromuscular control, are both associated with frontal-plane knee motions during a dynamic weight-bearing task.

scholarly journals Dynamic Postural Stability in Active, Adolescent Males Following Repeated Bouts of Aerobic Exercise in Hot and Temperate Environments: A Pilot Study

2020 ◽  
Vol 185 (Supplement_1) ◽  
pp. 368-375 ◽  
Author(s):  
Colin W Bond ◽  
Jason C Dorman ◽  
Lisa N MacFadden ◽  
Thayne A Munce
Keyword(s):  
Heart Rate ◽  
Lower Extremity ◽  
Postural Stability ◽  
Core Body Temperature ◽  
Neuromuscular Control ◽  
Residual Effects ◽  
Moderate Intensity ◽  
Moderate Intensity Exercise ◽  
Jump Landing ◽  
Dynamic Postural Stability

ABSTRACT Introduction Proper jump-landing neuromuscular control is crucial in mitigating lower-extremity musculoskeletal injuries. The presence of fatigue, especially in extreme environments, may degrade dynamic postural stability (DPS) and result in lower-extremity injuries. This study aimed to evaluate the influence of moderate intensity exercise in hot (HOT) and temperate (TEMP) ambient temperatures and residual effects of a previous bout on DPS during a single-legged jump-landing. It was hypothesized that the participants would display worse DPS after HOT compared to TEMP. Methods Six recreationally active young males (16.8 ± 0.7 year, 1.88 ± 0.12 m, 83.8 ± 19.8 kg) completed two, 60-minute bouts of exercise with 60 minutes of rest between bouts in both HOT (35°C) and TEMP (22.2°C). Heart rate and core body temperature (Tc) were monitored continuously, and DPS was assessed before and after each bout. Results The DPS time and condition effects were not identified (p &gt; 0.05), but HOT elicited some notable (d &gt; 0.20) increases in heart rate, Tc, and DPS compared to TEMP. Conclusions The DPS decrements varied between subjects suggesting individual-specific etiology. Repeated bouts of exercise in HOT may place an individual at a greater risk for injury than TEMP if proper prevention strategies are not used.

Neuromuscular Control Mechanisms During Single-Leg Jump Landing in Subacute Ankle Sprain Patients: A Case Control Study

PM&R ◽  
2016 ◽  
Vol 9 (3) ◽  
pp. 241-250 ◽  
Author(s):  
Lara Allet ◽  
Franziska Zumstein ◽  
Patric Eichelberger ◽  
Stéphane Armand ◽  
Ilona M. Punt
Keyword(s):  
Ankle Sprain ◽  
Case Control Study ◽  
Neuromuscular Control ◽  
Case Control ◽  
Control Mechanisms ◽  
Jump Landing ◽  
Control Study

The Effects of a Cognitive Dual Task on Jump-landing Movement Quality

2020 ◽  
Vol 42 (01) ◽  
pp. 90-95
Author(s):  
Amber Schnittjer ◽  
Janet E. Simon ◽  
Jae Yom ◽  
Dustin R. Grooms
Keyword(s):  
Lower Extremity ◽  
Dual Task ◽  
Motor Performance ◽  
Cognitive Task ◽  
Neuromuscular Control ◽  
Task Design ◽  
Lower Extremity Injury ◽  
Extremity Injury ◽  
Movement Quality ◽  
Jump Landing

AbstractInvestigations on movement quality deficits associated with jump landing are numerous, however, these studies are often performed in laboratories with little distraction to the participant. This is contrary to how injury typically occurs secondary to sport-specific distraction where the athlete is cognitively loaded during motor performance. Thus, the purpose of this study was to determine the effect of a cognitive load on jump-landing movement quality. A dual-task design was used to determine the effects of a dual-task on tuck jump movement quality in 20 participants. There were three cognitive conditions (no cognitive task, easy-cognitive task, and difficult-cognitive task). The dual task elicited statistically significant changes in overall tuck jump score (movement quality) across the conditions with tuck jump score increasing from 3.52±1.64 baseline to 4.37±1.25 with the easy-cognitive task to 4.67±1.24 with the difficult-cognitive task. The findings of this study may be useful to screen for individuals at risk of lower extremity injury utilizing the tuck jump when paired with a cognitive task. The screening would then identify individuals who may have poor neuromuscular control when cognitively loaded.

Functional Anatomy Underlying Pharyngeal Swallowing Mechanics and Swallowing Performance Goals

2019 ◽  
Vol 4 (4) ◽  
pp. 648-655
Author(s):  
William G. Pearson ◽  
Jacline V. Griffeth ◽  
Alexis M. Ennis
Keyword(s):  
Functional Anatomy ◽  
Neuromuscular Control ◽  
Upper Esophageal Sphincter ◽  
Performance Goals ◽  
Laryngeal Elevation ◽  
Port Closure ◽  
Swallowing Dysfunction ◽  
Hyoid Movement ◽  
Pharyngeal Swallowing ◽  
Pharyngeal Constriction

Purpose Rehabilitation of pharyngeal swallowing dysfunction requires a thorough understanding of the functional anatomy underlying the performance goals of pharyngeal swallowing. These goals include the safe and efficient transfer of a bolus through the hypopharynx into the esophagus. Penetration or aspiration of a bolus threatens swallowing safety. Bolus residue indicates swallowing inefficiency. Several primary mechanics, or elements of the swallowing mechanism, underlie these performance goals, with some elements contributing to both goals. These primary mechanics include velopharyngeal port closure, hyoid movement, laryngeal elevation, pharyngeal shortening, tongue base retraction, and pharyngeal constriction. Each element of the swallowing mechanism is under neuromuscular control and is therefore, in principle, a potential target for rehabilitation. Secondary mechanics of pharyngeal swallowing, those movements dependent on primary mechanics, include opening the upper esophageal sphincter and epiglottic inversion. Conclusion Understanding the functional anatomy of pharyngeal swallowing underlying swallowing performance goals will facilitate anatomically informed critical thinking in the rehabilitation of pharyngeal swallowing dysfunction.

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