Effect of Midsole Thickness of Dance Shoes on Dynamic Postural Stability

Landing from jumps is one of the main causes of injury within dance. A number of studies have reported a negative effect of shoe midsole thickness on lower limb kinematics during running due to the reduction in afferent sensory outputs from the foot’s epithelium. The purpose of this study was to examine the influence of varying midsole thicknesses in dance shoes on dynamic postural stability during a single-leg landing. Twenty-eight female undergraduate dance participants volunteered for the study. They carried out three trials under four conditions: barefoot and in ballet flats (2 mm midsole thickness), jazz shoes (7 mm), and dance sneakers (30 mm). The task consisted of a single-leg forward jump over a hurdle at 50% of their maximal vertical jump height, landing on a force platform, and balancing for 3 seconds. The stability indices for vertical stability (VSI), anterior-posterior stability (APSI), medial-lateral stability (MLSI), and dynamic postural stability (DPSI) were calculated using Wikstrom’s revised method. Significant differences were reported between the midsole thicknesses for both DPSI and VSI (p<0.01). No statistical differences were noted for the indices SPSI or MLSI. The present data agree with the running studies in that increased midsole thickness has a negative influence on landing stability.

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Lower Limb Kinematics and Dynamic Postural Stability in Anterior Cruciate Ligament-Reconstructed Female Athletes

Journal of Athletic Training ◽

10.4085/1062-6050-48.2.05 ◽

2013 ◽

Vol 48 (2) ◽

pp. 172-185 ◽

Cited By ~ 31

Author(s):

Eamonn Delahunt ◽

Mark Chawke ◽

Judy Kelleher ◽

Katie Murphy ◽

Anna Prendiville ◽

...

Keyword(s):

Knee Joint ◽

Acl Reconstruction ◽

Postural Stability ◽

Female Athletes ◽

Cruciate Ligament ◽

Knee Joint Kinematics ◽

Limb Kinematics ◽

Anterior Cruciate ◽

Dynamic Postural Stability ◽

Lower Limb Kinematics

Context: Deficits in lower limb kinematics and postural stability are predisposing factors to the development of knee ligamentous injury. The extent to which these deficits are present after anterior cruciate ligament (ACL) reconstruction is still largely unknown. The primary hypothesis of the present study was that female athletes who have undergone ACL reconstruction and who have returned to sport participation would exhibit deficits in dynamic postural stability as well as deficiencies in hip- and knee-joint kinematics when compared with an age-, activity-, and sex-matched uninjured control group. Objective: To investigate dynamic postural stability as quantified by the Star Excursion Balance Test (SEBT) and simultaneous hip- and knee-joint kinematic profiles in female athletes who have undergone ACL reconstruction. Design: Descriptive laboratory study. Setting: University motion-analysis laboratory. Patients or Other Participants: Fourteen female athletes who had previously undergone ACL reconstruction (ACL-R) and 17 age- and sex-matched uninjured controls. Intervention(s): Each participant performed 3 trials of the anterior, posterior-medial, and posterior-lateral directional components of the SEBT. Main Outcome Measure(s): Reach distances for each directional component were quantified and expressed as a percentage of leg length. Simultaneous hip- and knee-joint kinematic profiles were recorded using a motion-analysis system. Results: The ACL-R group had decreased reach distances on the posterior-medial (P < .01) and posterior-lateral (P < .01) directional components of the SEBT. During performance of the directional components of the SEBT, ACL-R participants demonstrated altered hip-joint frontal-, sagittal-, and transverse-plane kinematic profiles (P < .05), as well as altered knee-joint sagittal-plane kinematic profiles (P < .05). Conclusions: Deficits in dynamic postural stability and concomitant altered hip- and knee-joint kinematics are present after ACL reconstruction and return to competitive activity. The extent to which these deficits influence potential future injury is worthy of investigation.

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Influence of a preventive training program on lower limb kinematics and vertical jump height of male volleyball athletes

Physical Therapy in Sport ◽

10.1016/j.ptsp.2012.02.005 ◽

2013 ◽

Vol 14 (1) ◽

pp. 35-43 ◽

Cited By ~ 12

Author(s):

Gustavo Leporace ◽

Jomilto Praxedes ◽

Glauber Ribeiro Pereira ◽

Sérgio Medeiros Pinto ◽

Daniel Chagas ◽

...

Keyword(s):

Training Program ◽

Lower Limb ◽

Vertical Jump ◽

Jump Height ◽

Vertical Jump Height ◽

Limb Kinematics ◽

Lower Limb Kinematics

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Acute Effects of Different Stretching Techniques on Lower Limb Kinematics, Kinetics and Muscle Activities during Vertical Jump

Journal of Biomimetics Biomaterials and Biomedical Engineering ◽

10.4028/www.scientific.net/jbbbe.40.1 ◽

2019 ◽

Vol 40 ◽

pp. 1-15

Author(s):

Zi Xiang Gao ◽

Yang Song ◽

Pei Min Yu ◽

Yan Zhang ◽

Shu Dong Li

Keyword(s):

Internal Rotation ◽

Lower Limb ◽

Vertical Jump ◽

Rectus Femoris ◽

Biceps Femoris ◽

Acute Effects ◽

Warm Up ◽

Gastrocnemius Medialis ◽

Limb Kinematics ◽

Lower Limb Kinematics

The purpose of this study was to examine the acute effects of different stretching techniques on performance and lower limb kinematics, kinetics and muscle activities during vertical jump in female aerobics athletes. 10 female college aerobics athletes participated in this study. Three-dimensional kinematic and kinetic data, as well as electromyography of rectus femoris, biceps femoris and gastrocnemius medialis were collected using Vicon motion analysis system, Kistler force plate and Wireless surface electromyographic system respectively during the test. No significant differences in jump height had been determined among these 3 warm-up methods. Hip peak flexion and internal rotation angles decreased significantly after BSM and peak adduction angle decreased significantly after SSM and BSM during landing. Knee peak flexion and internal rotation angles increased significantly after SSM and BSM during take-off. Also, BSM showed significantly greater peak flexion compared with SSM. Ankle peak plantarflexion angle increased significantly after BSM. In addition, BSM showed significantly greater improvement in the variation range than SSM except for the ankle int-external rotation. Existence of no significant differences in the peak value of vertical ground reaction force during take-off and landing phase had been determined among these 3 warm-up methods, and muscle activities of rectus femoris, biceps femoris and gastrocnemius medialis were likewise not significantly different. The results of this study suggest that it would be suitable for female aerobics athletes to perform ballistic stretching in warm-up in order to improve flexibility without decreasing the following vertical jumping event and may also reduce the risk of ankle sprain injury.

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The effects of two different whole-body-vibration frequencies on ankle dorsiflexion angle, vertical jump height, and postural stability after landing

Isokinetics and Exercise Science ◽

10.3233/ies-192167 ◽

2019 ◽

Vol 27 (4) ◽

pp. 267-274

Author(s):

Makoto Komiya ◽

Yukio Urabe ◽

Junpei Sasadai ◽

Hironori Fujishita ◽

Shogo Sakai ◽

...

Keyword(s):

Postural Stability ◽

Vertical Jump ◽

Whole Body Vibration ◽

Ankle Dorsiflexion ◽

Whole Body ◽

Vibration Frequencies ◽

Jump Height ◽

Body Vibration ◽

Vertical Jump Height

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Individuals with Recurrent Ankle Sprain Demonstrate Postural Instability and Neuromuscular Control Deficits in Unaffected Side

Foot & Ankle Orthopaedics ◽

10.1177/2473011419s00268 ◽

2019 ◽

Vol 4 (4) ◽

pp. 2473011419S0026

Author(s):

Jin Hyuck Lee ◽

Gi Won Choi ◽

Woo Young Jang

Keyword(s):

Ankle Sprain ◽

Postural Stability ◽

Ankle Instability ◽

Neuromuscular Control ◽

Postural Instability ◽

Unaffected Side ◽

Ankle Rehabilitation ◽

Dynamic Postural Stability ◽

Recurrent Ankle Sprain ◽

Anterior Posterior

Category: Ankle, Sports Introduction/Purpose: To compare proprioception, postural stability, and neuromuscular control between patients with mechanical laxity and recurrent ankle sprain. Methods: Among 86 patients with ankle instability, 45 patients had mechanical laxity (mean age 27.2 ± 7.0 years) and 41 had recurrent ankle sprain (mean age 25.1 ± 9.2 years). Both the affected and unaffected ankles of each patient were evalu- ated. Proprioception and neuromuscular control tests were conducted using an isokinetic machine, and postural stability was tested using a postural stabilometry system. Results: Proprioception was not significantly different between the unaffected or affected ankles of the mechanical laxity group compared with those of the recurrent ankle sprain group (n.s). Static and dynamic postural stability and neuromus- cular control were similar in the affected ankles between the two groups (n.s). However, postural stability (static, overall: p = 0.009, anterior– posterior: p = 0.028, medial–lateral: p = 0.022; dynamic, overall: p = 0.012, anterior–posterior: p = 0.004, medial–lateral: p = 0.001) and neuromuscular control (inversion: p = 0.031, eversion: p = 0.039, dorsiflexion: p = 0.029, plantarflexion: p = 0.035) were significantly decreased in the unaffected ankles of the recurrent ankle sprain group compared with those of the mechanical laxity group. Conclusion: The unaffected ankles of the recurrent ankle sprain group showed significant decreases in both postural stability and neuromuscular control compared with the mechanical laxity group. Clinicians and therapists should consider unaffected ankle rehabilitation in patients with recurrent ankle sprain to prevent future sprain events.

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How Reliable Are Lower-Limb Kinematics and Kinetics during a Drop Vertical Jump?

Medicine & Science in Sports & Exercise ◽

10.1249/mss.0000000000000170 ◽

2014 ◽

Vol 46 (4) ◽

pp. 678-685 ◽

Cited By ~ 32

Author(s):

Bart Malfait ◽

Sean Sankey ◽

Raja M. Firhad Raja Azidin ◽

Kevin Deschamps ◽

Jos Vanrenterghem ◽

...

Keyword(s):

Lower Limb ◽

Vertical Jump ◽

Limb Kinematics ◽

Lower Limb Kinematics ◽

Kinematics And Kinetics ◽

Drop Vertical Jump

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Measuring Kinematic Response to Perturbed Locomotion in Young Adults

Sensors ◽

10.3390/s22020672 ◽

2022 ◽

Vol 22 (2) ◽

pp. 672

Author(s):

Juri Taborri ◽

Alessandro Santuz ◽

Leon Brüll ◽

Adamantios Arampatzis ◽

Stefano Rossi

Keyword(s):

Joint Coordination ◽

Daily Life Activities ◽

Measurement Units ◽

Limb Kinematics ◽

Walking Tests ◽

Continuous Relative Phase ◽

Lower Limb Kinematics ◽

Kinematics Parameters ◽

Perturbed Walking ◽

Anterior Posterior

Daily life activities often require humans to perform locomotion in challenging scenarios. In this context, this study aimed at investigating the effects induced by anterior-posterior (AP) and medio-lateral (ML) perturbations on walking. Through this aim, the experimental protocol involved 12 participants who performed three tasks on a treadmill consisting of one unperturbed and two perturbed walking tests. Inertial measurement units were used to gather lower limb kinematics. Parameters related to joint angles, as the range of motion (ROM) and its variability (CoV), as well as the inter-joint coordination in terms of continuous relative phase (CRP) were computed. The AP perturbation seemed to be more challenging causing differences with respect to normal walking in both the variability of the ROM and the CRP amplitude and variability. As ML, only the ankle showed different behavior in terms of joint angle and CRP variability. In both tasks, a shortening of the stance was found. The findings should be considered when implementing perturbed rehabilitative protocols for falling reduction.

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