Leg stiffness control during drop landing movement in individuals with mechanical and functional ankle disabilities

Jeon, Kyoungkyu; Kim, Kewwan; Kang, Nyeonju

doi:10.1080/14763141.2020.1726997

Cited by 11 publications

(12 citation statements)

References 39 publications

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“…During different speed walking, the strut-like function of waist during push-off decreases with increasing walking speed, same as the strut-like function of knee during collision and pushoff. Jeon et al (2020) revealed that decreased leg stiffness was associated with greater displacement of leg movement. Therefore, the change of waist and knee strut function may lead greater leg movement during collision and push-off when walking speed is raised up.…”

Section: Waist and Knee Did Not Involve Altering Walking Speed But Waist Provided Stability During Collision With Increasing Speedmentioning

confidence: 99%

Speed-Related Energy Flow and Joint Function Change During Human Walking

Ren

et al. 2021

Front. Bioeng. Biotechnol.

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During human walking, mechanical energy transfers between segments via joints. Joint mechanics of the human body are coordinated with each other to adapt to speed change. The aim of this study is to analyze the functional behaviors of major joints during walking, and how joints and segments alter walking speed during different periods (collision, rebound, preload, and push-off) of stance phase. In this study, gait experiment was performed with three different self-selected speeds. Mechanical works of joints and segments were determined with collected data. Joint function indices were calculated based on net joint work. The results show that the primary functional behaviors of joints would not change with altering walking speed, but the function indices might be changed slightly (e.g., strut functions decrease with increasing walking speed). Waist acts as strut during stance phase and contributes to keep stability during collision when walking faster. Knee of stance leg does not contribute to altering walking speed. Hip and ankle absorb more mechanical energy to buffer the strike during collision with increasing walking speed. What is more, hip and ankle generate more energy during push-off with greater motion to push distal segments forward with increasing walking speed. Ankle also produces more mechanical energy during push-off to compensate the increased heel-strike collision of contralateral leg during faster walking. Thus, human may utilize the cooperation of hip and ankle during collision and push-off to alter walking speed. These findings indicate that speed change in walking leads to fundamental changes to joint mechanics.

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Section: Waist and Knee Did Not Involve Altering Walking Speed But Waist Provided Stability During Collision With Increasing Speedmentioning

confidence: 99%

Speed-Related Energy Flow and Joint Function Change During Human Walking

Ren

et al. 2021

Front. Bioeng. Biotechnol.

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“…Those sports maneuvers are more similar to real-life sports actions. Several studies comparing lower extremity biomechanical and neuromuscular control measures in CAI participants with healthy controls have been published, with some findings indicating that CAI participants had greater ankle dorsiflexion, knee flexion, and hip flexion ( Caulfield and Garrett, 2002 ; Jeon et al, 2020 ), and prolonged peroneus longus latency during the landing phase of a single-leg drop ( Simpson et al, 2019a ). Terada et al (2014a) demonstrated that participants with CAI demonstrated less knee flexion at peak anterior tibial shear force (ATSF) compared to the controls during stop jump.…”

Section: Introductionmentioning

confidence: 99%

Chronic ankle instability modifies proximal lower extremity biomechanics during sports maneuvers that may increase the risk of ACL injury: A systematic review

Song

Ming

et al. 2022

Front. Physiol.

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The biomechanical changes in the lower extremity caused by chronic ankle instability (CAI) are not restricted to the ankle joint, but also affect the proximal joints, increasing the risk of joint injury. This study aimed to systematically review the research on CAI and lower extremity angle and movements during side-cutting, stop jumping, and landing tasks, to provide a systematic and basic theoretical basis for preventing lower extremity injury. Literature published from exception to April 2022 were searched in the PubMed, Web of Science, and SPORTDiscus databases using the keywords of “chronic ankle instability,” “side-cut,” “stop jump,” and “landing.” Only studies that compared participants with chronic ankle instability with healthy participants and assessed lower extremity kinetics or kinematics during side-cutting, stop jumping, or landing were included. The risk of bias assessment was conducted using a modified version of the Newcastle-Ottawa checklist. After title, abstract, and full text screening, 32 studies were included and the average score of the quality evaluation was 7 points (range 6–8). Among them five studies were related to the side-cut task, three studies were the stop-jump task, and twenty-four studies were related to landing. Although the results of many studies are inconsistent, participants with CAI exhibit altered lower extremity proximal joint movement strategies during side cut, stop jump, and landings, however, such alterations may increase the risk of anterior cruciate ligament injury.

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“…Women are reported to experience more patellofemoral stress while running, jumping, landing, and climbing stairs due to the increased load during knee flexion as a result of these structural features [ 1 , 9 ]. Landing, a common task performed in daily life and sports, generates shock that is 2–3 times greater than body weight [ 10 ], and the knee joints play an important role in shock absorption during landing, absorbing approximately 41% of the total shock [ 11 ]. However, small hip flexion and large internal rotation during landing direct substantial shock onto the knee joints, and the consequently greater patellofemoral stress increases the risk of an injury [ 12 ] Women with PFPS put more strain on the patellofemoral joint during single-leg squats and landing, due to excessive knee abduction, increasing their risk of anterior cruciate ligament (ACL) injury and arthritis [ 13 – 16 ].…”

Section: Introductionmentioning

confidence: 99%

Effects of Patellofemoral Pain Syndrome on Changes in Dynamic Postural Stability during Landing in Adult Women

Kim

Yeom

Ahn

et al. 2022

Applied Bionics and Biomechanics

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Background. This study investigated the effects of lower limb movements on dynamic postural stability (DPS) during drop landing in adult women with patellofemoral pain syndrome (PFPS). Methods. Thirty-eight adult women were recruited and divided into two groups, the PFPS group and the control group. The study participants performed a single-leg drop landing from a 30 cm box, and their lower limb movements and DPS were measured. Differences between groups were examined using independent sample t -tests. In addition, stepwise multiple linear regression was used to examine the kinematic parameters that contribute to the DPS. Results. The PFPS group had significantly lower hip flexion, internal rotation, knee flexion, ankle external rotation, pelvic oblique, tilt, rotation, and higher hip abduction, knee valgus, and ankle plantarflexion. In terms of DPS, the PFPS group had a significantly higher anteroposterior and a lower mediolateral than that of the control group. In the control group, regression analysis revealed a controlled anteroposterior using knee flexion, while the PFPS group controlled mediolateral through ankle plantarflexion. Conclusions. Patients with PFPS experienced more shock on their knee joint during landing than patients in the control group with greater anteroposterior instability and lower mediolateral instability.

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Leg stiffness control during drop landing movement in individuals with mechanical and functional ankle disabilities

Cited by 11 publications

References 39 publications

Speed-Related Energy Flow and Joint Function Change During Human Walking

Speed-Related Energy Flow and Joint Function Change During Human Walking

Chronic ankle instability modifies proximal lower extremity biomechanics during sports maneuvers that may increase the risk of ACL injury: A systematic review

Effects of Patellofemoral Pain Syndrome on Changes in Dynamic Postural Stability during Landing in Adult Women

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