Academic literature on the topic 'One-Leg Drop-Jump Landing'

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Journal articles on the topic "One-Leg Drop-Jump Landing"

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You, Chieh-Hsin, and Chi-Huang Huang. "Effects of Leg Stiffness Regulated by Different Landing Styles on Vertical Drop Jump Performance." Journal of Human Kinetics 83, no. 1 (2022): 29–37. http://dx.doi.org/10.2478/hukin-2022-0066.

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Abstract The purpose of this study was to investigate the effects of stiffness regulated by landing styles on drop jump performance. Twenty-four male lacrosse athletes performed drop jumps with stiff (ST), self-selected (SS), and soft (SF) landing from a 0.42 m box. Leg stiffness, ground contact time, depth, jump height, maximum ground reaction force (GRF), GRF at the start of the propulsive phase, mean power, peak power, and the reactive strength index (RSI) were calculated. The results showed that jump height and the RSI had strong correlations to power production in all drop jump styles. Po
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Romanchuk, Nicholas J., Michael J. Del Bel, and Daniel L. Benoit. "SEX-SPECIFIC ENERGY ABSORPTION STRATEGIES DURING UNANTICIPATED SINGLE-LEG LANDINGS IN ADOLESCENTS: IMPLICATIONS FOR KNEE INJURIES." Orthopaedic Journal of Sports Medicine 8, no. 4_suppl3 (2020): 2325967120S0023. http://dx.doi.org/10.1177/2325967120s00237.

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Background: The vast majority of ACL injuries in adolescents occur during non-contact injuries, in particular single-leg landings. The magnitude of energy absorption about each joint during theses landings influences the internal and external forces acting on the joints of the lower extremity. Understanding the biomechanics of landing in adolescent male and female athletes may provide insight into these non-contact injury mechanisms. Hypothesis/Purpose: This study set out to identify sex-specific energy absorption strategies during single-leg landing and determine the relationship between join
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Kazumasa, Nakagawa, Takamatsu Reika, and Matsushima Miku. "Sex Differences in Muscle Activity During Drop-Jump Landing Motion." Journal of Health and Medical Sciences 5, no. 3 (2022): 28–35. https://doi.org/10.31014/aior.1994.05.03.226.

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This study investigated the effect of hip joint muscles' activity on dynamic knee-joint valgus angle during one-leg drop-jump landing motion in male and female subjects. Twenty-four healthy university students (11 males and 13 females) participated in the study. Surface electromyography was used to measure muscle activity during a one-leg landing motion. A gender difference was observed: males showed greater activity in the gluteus medius muscle compared to the adductor magnus muscle, whereas females showed greater activity in the rectus femoris muscle. A correlation between lower limb mus
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Mueske, Nicole, Mia J. Katzel, Kyle P. Chadwick, et al. "BIOMECHANICAL SYMMETRY DURING DROP JUMP AND SINGLE-LEG HOP LANDING IN UNINJURED ADOLESCENT ATHLETES." Orthopaedic Journal of Sports Medicine 7, no. 3_suppl (2019): 2325967119S0002. http://dx.doi.org/10.1177/2325967119s00023.

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BACKGROUND Symmetry of strength, thigh girth and hop distance is often used as a benchmark in return to sport testing. Using symmetry as a gold standard has been translated into biomechanical testing; however, kinematic and kinetic symmetry during dynamic tasks in adolescents without lower extremity injury is not well understood. The purpose of this study was to assess symmetry in uninjured adolescent athletes during double and single-leg landing tasks. METHODS 36 uninjured athletes (ages 7-15 years, mean 12.4, SD 2.4; 47% female) completed vertical drop jump (DJ) and single-leg hop (SLH) for
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Rajakaruna, Mr Priyankara Manoj, Associate Professor Yvonne C. Learmonth, and Associate Professor Alasdair R. Dempsey. "COMPARISON OF INTER-SESSION, INTRA-RATER AND INTER-RATER RELIABILITY OF SINGLE AND DOUBLE LEG LANDING ERROR SCORING SYSTEM USING DIFFERENT CALCULATION METHODS." Journal of Clinical Exercise Physiology 13, s2 (2024): 463. http://dx.doi.org/10.31189/2165-7629-13-s2.463.

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INTRODUCTION & AIMS The Landing Error Scoring System (LESS) is used for screening noncontact anterior cruciate ligament (ACL) injury risk. The LESS is deemed a valid and reliable indicator of landing biomechanics that predict noncontact ACL injuries. We have sought to validate a Single-Leg Landing Error Scoring System (SLESS) against the established LESS. There are seven distinct calculation methods for final LESS scores, adding variability to the original version and the risk of misinterpreting results. This study used different calculation methods to investigate the inter-session, intra-
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Vaishnavi, G., V. Saipavithra, G. Yuvarani, et al. "Effectiveness of isolated ankle strengthening and functional balance training in single leg drop jump land in football players and measuring the stability." Biomedicine 40, no. 3 (2020): 392–94. http://dx.doi.org/10.51248/.v40i3.36.

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Introduction and Aim: Football is one of the famous sports in the world and associated with many ankle injuries in football players. Many football players use single leg drop jump landing ranging from 13 to 20 out of 1000 players. Functional balance maintain or improve activities of daily living and quality of life. Strength training increases the density of bone and reduces the risk of fractures. Aim of this present study is to analyze the effectiveness of the isolated ankle strengthening and functional balance training in single leg drop jump land in football players.
 Materials and Met
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Zantop, Thore, Shozaburo Terai, Przemyslaw Warminski, and Christian Zantop. "Return to sports following ACL reconstruction: prospective analysis of functional stability 3 months postoperatively in 280 patients." Orthopaedic Journal of Sports Medicine 8, no. 9_suppl7 (2020): 2325967120S0054. http://dx.doi.org/10.1177/2325967120s00546.

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Introduction: For the last years, the terms return to play and return to competition after ACL reconstruction have been spread. Recent literature does not provide sufficient information on the approach to identify knee joint conditions that are likely to result in a recurrent injury following ACL reconstruction. Aim of this study is therefore to prospectively investigate the functional stability after ACL reconstruction by one single surgeon 3 months postoperatively. Hypotheses: The functional stability after ACL reconstruction 3 months postoperatively can safely be assessed using a multi-fact
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Richardson, Mark C., Andrew Wilkinson, Paul Chesterton, and William Evans. "Effect of Sand on Landing Knee Valgus During Single-Leg Land and Drop Jump Tasks: Possible Implications for ACL Injury Prevention and Rehabilitation." Journal of Sport Rehabilitation 30, no. 1 (2021): 97–104. http://dx.doi.org/10.1123/jsr.2019-0306.

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Context: Despite significant emphasis on anterior cruciate ligament injury prevention, injury rates continue to rise and reinjury is common. Interventions to reduce injury have included resistance, balance, and jump training elements. The use of sand-based jump training has been postulated as an effective treatment. However, evidence on landing mechanics is limited. Objective: To determine potential differences in landing strategies and subsequent landing knee valgus when performing single-leg landing (SLL) and drop jump (DJ) tasks onto sand and land, and to compare between both male and femal
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Cannon-Noren, Harry, and Richard Page. "Do lower limb kinetic and kinematic differences in drop jump landings persist when players have returned to sport following knee ligamentous injuries?" Graduate Journal of Sports Science, Coaching, Management, & Rehabilitation 1, no. 3 (2024): 42. http://dx.doi.org/10.19164/gjsscmr.v1i3.1525.

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Knee injuries (KI) are identified as one of the most burdensome lower limb injuries in football with long and complicated rehabilitation and high re-injury risk. Current research often describes technique deficits being present upon RTS, often being a result of poor return to sport (RTS) testing procedures. More recently, research has advocated the use of single leg vertical jump assessments, due to the specificity of the movement to injury mechanisms and the ability to consider different phases of the task to inform practitioners of joint contributions to the propulsion and landing phases. Th
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Sagawa, Yuki, Takumi Yamada, Takehiro Ohmi, Yoshinao Moriyama, and Junpei Kato. "Differences in lower extremity kinematics during single-leg lateral drop landing of healthy individuals, injured but asymptomatic patients, and patients with chronic ankle instability- a cross-sectional observational study." PLOS ONE 19, no. 3 (2024): e0297660. http://dx.doi.org/10.1371/journal.pone.0297660.

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The lower-extremity kinematics associated with forward jump landing after an ankle injury is known to differ for patients with Chronic Ankle Instability (CAI), copers (injured but asymptomatic patients), and healthy individuals. However, the differences in the lower extremity kinematics of these groups associated with a Single-leg Lateral Drop Landing (SLDL) are unknown. The purpose of this study is to characterize the lower limb and foot kinematics during SLDL in CAI patients and to compare these characteristics with those of the copers and healthy individuals. This was a cross-sectional obse
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Conference papers on the topic "One-Leg Drop-Jump Landing"

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Tse, Chi-Yin, Hamid Nayeb-Hashemi, Ashkan Vaziri, and Paul K. Canavan. "A Finite Element Analysis of a Subject Specific Single-Leg Drop Landing at Varied Heights." In ASME 2011 International Mechanical Engineering Congress and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/imece2011-63716.

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The pathomechanics of knee anterior cruciate ligament (ACL) injury related to the female athlete is of high interest due to the high incidence of injury compared to males participating in the same sport. The mechanisms of ACL injury are still not completely understood, but it is known that single-leg landings, stopping and cutting at high velocity are some of the non-contact mechanisms that are causing these injuries. This study analyzed a subject specific analysis of a single-leg drop landing that was performed by a female subject at 60%, 80% and 100% of her maximum vertical jump. The femur,
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