Pilot Study of Wobble Seat on Trunk Muscles Activity and Kinematics

This paper presents the pilot study of wobble seat on trunk muscles activity and kinematics. For this study the wobble board and wobble board on bearing surface were used to compare muscles activity and body segments kinematics on these different platforms. Two pelvic motions were performed: anterior – posterior and side to side. During this study the electromyography (sEMG) of trunk muscles and motion capture analysis were done. Results showed that sitting on wobble board placed on bearing surface leaded to increment of the activity of deep muscles with smaller pelvic movement in anterior – posterior pelvic motion.

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Intrinsic Auricular Muscle Zone Stimulation Improves Walking Parameters of Parkinson's Patients Faster Than Levodopa in the Motion Capture Analysis: A Pilot Study

Frontiers in Neurology ◽

10.3389/fneur.2020.546123 ◽

2020 ◽

Vol 11 ◽

Author(s):

Yusuf O. Cakmak ◽

Burak Ozsoy ◽

Sibel Ertan ◽

Ozgur O. Cakmak ◽

Gunes Kiziltan ◽

...

Keyword(s):

Pilot Study ◽

Motion Capture

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Lumbar Hyperextension in Baseball Pitching: A Potential Cause of Spondylolysis

Journal of Applied Biomechanics ◽

10.1123/jab.2017-0230 ◽

2018 ◽

Vol 34 (6) ◽

pp. 429-434 ◽

Cited By ~ 1

Author(s):

Hardeep Singh ◽

Mark Lee ◽

Matthew J. Solomito ◽

Christian Merrill ◽

Carl Nissen

Keyword(s):

Motion Capture ◽

Glenohumeral Joint ◽

External Rotation ◽

Age Groups ◽

Motion Capture System ◽

Kinematic Data ◽

Pelvic Motion ◽

The Difference ◽

Lumbar Extension ◽

Upper Thoracic

Symptomatic spondylolysis/spondylolisthesis is thought to be caused by repetitive lumbar extension. About 8.9% of baseball pitchers that experience back pain will be diagnosed with spondylolysis. Therefore, this study aims to identify and quantify lumbar extension experienced during baseball pitching. It was hypothesized that young pitchers would exhibit less lumbar extension than older pitchers. A total of 187 healthy pitchers were divided into 3 age groups: youth, adolescent, and college. Kinematic data were collected at 250 Hz using a 3-D motion capture system. Lumbar motion was calculated as the difference between upper thoracic motion and pelvic motion over the pitching cycle. Lumbar “hyperextension” was defined as ≥20° past neutral. College pitchers had significantly greater lumbar extension compared with youth and adolescent pitchers at the point of maximum external rotation of the glenohumeral joint during the pitch cycle (−25° [13°], P = .04). For all age groups, lumbar hyperextension was present during the first 66% of the pitch cycle. Most pitchers spent 45% of pitch cycle in ≥30° of lumbar extension. Understanding that lumbar extension and hyperextension are components of the complex, multiplanar motions of the spine associated with baseball pitching can potentially help in both the prevention and management of symptomatic spondylolysis/spondylolisthesis.

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EVALUATING CYCLIC PELVIC MOVEMENT IN PATIENTS WITH ACETABULAR LABRAL TEARS: A CASE-CONTROLLED PILOT STUDY

Journal of Musculoskeletal Research ◽

10.1142/s0218957714500134 ◽

2014 ◽

Vol 17 (03) ◽

pp. 1450013

Author(s):

Martin L. Tanaka ◽

Allston J. Stubbs ◽

David C. Holst ◽

Benjamin L. Long

Keyword(s):

Pilot Study ◽

Physical Examination ◽

Clinical Evaluation ◽

Bilateral Symmetry ◽

Radiographic Imaging ◽

Common Cause ◽

Specific Diagnosis ◽

Labral Tears ◽

Pelvic Movement ◽

Examination Techniques

Acetabular labral tears are a common cause of hip pain, but specific diagnosis can be difficult due to limitations in current physical examination techniques and radiographic imaging. Pelvic dynamics were captured in 18 participants (10 labral tear patients) who performed single leg squats and stance exercises. Comparisons were made between the pathologic and non-pathologic legs of patients and between patients and controls. The analysis of bilateral symmetry showed significant differences in most parameters implying unique patient compensatory dynamics. Bilateral symmetry was found to be significant in detecting differences in movement patterns and may become a useful tool for clinical evaluation.

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A Virtual Reality System for Occupational Therapy with Hand Motion Capture and Force Feedback: A Pilot Study of System Configuration

Current Topics in Environmental Health and Preventive Medicine - Stereopsis and Hygiene ◽

10.1007/978-981-13-1601-2_3 ◽

2018 ◽

pp. 25-31 ◽

Cited By ~ 1

Author(s):

Kouki Nagamune ◽

Yosuke Uozumi

Keyword(s):

Virtual Reality ◽

Pilot Study ◽

Occupational Therapy ◽

Motion Capture ◽

Force Feedback ◽

System Configuration ◽

Virtual Reality System ◽

Hand Motion

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Does foot pronation in unmounted horseback riders affect pelvic movement during walking?

Comparative Exercise Physiology ◽

10.3920/cep150019 ◽

2015 ◽

Vol 11 (4) ◽

pp. 231-237 ◽

Cited By ~ 5

Author(s):

M.T. Engell ◽

E. Hernlund ◽

A. Egenvall ◽

A. Bergh ◽

H.M. Clayton ◽

...

Keyword(s):

Motion Capture ◽

External Rotation ◽

Postural Asymmetry ◽

Kinematic Data ◽

Preliminary Step ◽

Pelvic Movement ◽

Foot Pronation

Foot pronation is a common postural condition that is related to postural asymmetry, and that may affect performance in a variety of sports. The aim of this study was to evaluate whether unmounted riders (n=18) with predominantly right or left foot pronation had an increased contralateral pelvic drop during stance of the more pronated foot when walking. This was a preliminary step toward investigating the effects of foot pronation during riding. Kinematic data were collected in 3D (250 Hz) using eight motion capture cameras during walking. The amount of foot pronation was measured by summing eversion and external rotation, and it was analysed in relation to maximal pelvic drop during stance. The results showed that during walking, the majority of the riders had significantly greater contralateral pelvic drop when the foot with the higher degree of pronation was in early stance. If the demonstrated postural asymmetry carries over to other activities where weight is distributed to the feet, e.g. at riding when the riders feet exert a force against the stirrups, this may affect the rider’s performance. Further studies are needed to describe the influence of foot pronation in mounted horseback riders.

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Using motion capture technology to measure the effects of magnification loupes on dental operator posture: A pilot study

Work ◽

10.3233/wor-172681 ◽

2018 ◽

Vol 59 (1) ◽

pp. 131-139 ◽

Cited By ~ 1

Author(s):

B.G. Branson ◽

R.M. Abnos ◽

M.L. Simmer-Beck ◽

G.W. King ◽

S.F. Siddicky

Keyword(s):

Pilot Study ◽

Motion Capture

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Use of Stabilometric Platform and Evaluation of Methods for Further Measurments – A Pilot Study

Acta Medica (Hradec Kralove Czech Republic) ◽

10.14712/18059694.2017.71 ◽

2007 ◽

Vol 50 (2) ◽

pp. 139-143 ◽

Cited By ~ 3

Author(s):

Jitka Jančová ◽

Vlasta Tošnerová

Keyword(s):

Pilot Study ◽

Center Of Pressure ◽

Quiet Standing ◽

Parallel Testing ◽

Eyes Closed ◽

Eyes Open ◽

Single Force ◽

Test Retest Reliability ◽

Evaluation Of Methods ◽

Anterior Posterior

Posture in a still stance has been quantified by changes in the center of pressure (COP), in both anterior-posterior (A/P) and medial-lateral (M/L) directions and measured on a single force platform (Bertec PRO VEC 5.0). The purpose of this study was to estimate the variance in error and the intrasession test-retest reliability, and to determine which measures shall be taken for further measurements, especially with adults age 65 and older. We used two types of approximation for the reliability coefficient. Firstly, we used the equation according to Blahuš (2) and secondly we used the Pearson’s correlation coefficient for test-retest measurements. The findings allow us to say, among other things, that the tests of quiet standing Double Narrow Stance Eyes Open (DNSEO) and Double Narrow Stance Eyes Closed (DNSEC) are parallel, in the sense of parallel testing.

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