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Dynamic postural stability

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https://www.readbyqxmd.com/read/28805601/effect-of-oral-contraceptives-on-balance-in-women-a-randomized-controlled-trial
#1
Ahmed M Maged, Emad Salah, Ahmed M Kamel, Ahmed M Hussein, Hany Saad, Hadeer Meshaal, Wafaa M Kamal
OBJECTIVE: To detect the effect of combined oral contraceptive pills (COC) on dynamic postural balance in healthy middle aged women. MATERIALS AND METHODS: A prospective randomized controlled study included 200 patients classified into two groups. Group I received COC containing 30 μg of EE and 3 mg of drospirenone for 12 consecutive cycles and Group II received no treatment. Overall, medio-lateral and antero-posterior stability were measured using Biodex system after 12 months...
August 2017: Taiwanese Journal of Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28802368/study-of-the-effects-of-hearing-on-static-and-dynamic-postural-function-in-children-using-cochlear-implants
#2
Malihah Mazaheryazdi, Abdollah Moossavi, Javad Sarrafzadah, Saeed Talebian, Shohreh Jalaie
OBJECTIVE: The present study aimed to evaluate the postural control perturbations by the center of pressure parameters in two main approaches, cochlear implant turned "on" and "off". METHODS: We included 25 children aged 8-10 years with unilateral cochlear implants and bilateral vestibular hypofunction deficit. To evaluate the postural function, each children was asked to stand on the force plate under 3 different conditions and cochlear implant turned "on" and "off": Condition (A) double stance from open eyes to closed eyes, Condition (B) double stance with open eyes engaging in the dual task and Condition (C) From double leg stance to one leg stance with open eyes for assessment of dynamic postural control...
September 2017: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/28801963/a-preliminary-study-of-static-and-dynamic-balance-in-sedentary-obese-young-adults-the-relationship-between-bmi-posture-and-postural-balance
#3
J A do Nascimento, C C Silva, H H Dos Santos, J J de Almeida Ferreira, P R de Andrade
The aim of this study was to evaluate the postural control of obese young adults with normal body mass index during different static (bipedic and unipedic support) and dynamic postural conditions (gait velocity and limits of stability) in order to compare the static and dynamic balance of these individuals. A cross-sectional quantitative study was carried out to evaluate static and dynamic balance in 25 sedentary individuals. The sample was divided into two groups, 10 in the normal-weight group (24.70 ± 3...
August 11, 2017: Clinical Obesity
https://www.readbyqxmd.com/read/28800501/learning-effects-of-dynamic-postural-control-by-auditory-biofeedback-versus-visual-biofeedback-training
#4
Naoya Hasegawa, Kenta Takeda, Moe Sakuma, Hiroki Mani, Hiroshi Maejima, Tadayoshi Asaka
Augmented sensory biofeedback (BF) for postural control is widely used to improve postural stability. However, the effective sensory information in BF systems of motor learning for postural control is still unknown. The purpose of this study was to investigate the learning effects of visual versus auditory BF training in dynamic postural control. Eighteen healthy young adults were randomly divided into two groups (visual BF and auditory BF). In test sessions, participants were asked to bring the real-time center of pressure (COP) in line with a hidden target by body sway in the sagittal plane...
August 2, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28800302/the-effect-of-pain-severity-on-postural-stability-and-dynamic-limits-of-stability-in-chronic-low-back-pain
#5
Elsadat Saad Soliman, Tamer Mohamed Shousha, Mohamed Salaheldien Alayat
BACKGROUND: Deficits of dynamic balance in chronic low back pain patients have been reported by different studies in terms of impaired postural control. However, they excluded the degree of pain as a determinant affecting dynamic balance. OBJECTIVE: To evaluate the effect of pain intensity on dynamic balance control in terms of postural stability indices (PSIs) and limits of stability (LOS) in chronic LBP patients. METHODS: Sixty subjects (38 men, 22 women) participated in the current study, 45 patients with chronic LBP were selected randomly and served as the chronic LBP group while 15 healthy subjects served as the asymptomatic group (AS)...
July 31, 2017: Journal of Back and Musculoskeletal Rehabilitation
https://www.readbyqxmd.com/read/28783618/performance-of-high-school-male-athletes-on-the-functional-movement-screen%C3%A2
#6
Laura J Smith, James R Creps, Ryan Bean, Becky Rodda, Bara Alsalaheen
OBJECTIVES: (1) Describe the performance of the Functional Movement Screen™ (FMS™) by reporting the proportion of adolescents with a score of ≤14 and the frequency of asymmetries in a cross-sectional sample; (2) explore associations between FMS™ to age and body mass, and explore the construct validity of the FMS™ against common postural stability measures; (3) examine the inter-rater and test-retest reliability of the FMS™ in adolescents. DESIGN: Cross-sectional...
July 11, 2017: Physical Therapy in Sport
https://www.readbyqxmd.com/read/28774686/does-stabilization-of-the-degenerative-lumbar-spine-itself-produce-multifidus-atrophy
#7
Young Eun Kim, Hae Won Choi
The effect of stabilization of the degenerative segment on changes in the pattern of paraspinal muscle activity was investigated using a previously developed musculoskeletal model. Muscle activity change depending on L4-L5 segment stabilization with and without taking into account the presence of multifidus atrophy according to direct invasion of the back muscle during surgery (MADIBM) was analysed in erect standing and 20° flexed postures. For the stabilization of the degenerative segment, a fusion or non-fusion stabilization with a pedicle-based dynamic stabilization system (PBDS) was applied...
July 31, 2017: Medical Engineering & Physics
https://www.readbyqxmd.com/read/28767021/the-limits-of-stability-in-patients-with-unilateral-vestibulopathy
#8
Rafael Alvarez-Otero, Nicolas Perez-Fernandez
OBJECTIVE: To characterize the stability limits and region in patients with unilateral vestibulopathy according to the side of the lesion and determine if that imposes any bias. To analyze if the stability limits and region depend on the functional deficit as evaluated in the sensory organization test. METHODS: Forty patients with chronic dizziness and without any vertigo spell for least 6 months prior to testing. In all of them, a unilateral vestibulopathy was diagnosed clinically and at vestibular testing...
October 2017: Acta Oto-laryngologica
https://www.readbyqxmd.com/read/28765993/effects-of-acute-peripheral-central-visual-field-loss-on-standing-balance
#9
Caitlin O'Connell, Arash Mahboobin, Scott Drexler, Mark S Redfern, Subashan Perera, Amy C Nau, Rakié Cham
Vision impairments such as age-related macular degeneration (AMD) and glaucoma are among the top risk factors for geriatric falls and falls-related injuries. AMD and glaucoma lead to loss of the central and peripheral visual fields, respectively. This study utilized a custom contact lens model to occlude the peripheral or central visual fields in healthy adults, offering a novel within-subject approach to improve our understanding of the etiology of balance impairments that may lead to an increased fall risk in patients with visual field loss...
August 1, 2017: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
https://www.readbyqxmd.com/read/28764814/differences-of-muscle-co-contraction-of-the-ankle-joint-between-young-and-elderly-adults-during-dynamic-postural-control-at-different-speeds
#10
Yoshitaka Iwamoto, Makoto Takahashi, Koichi Shinkoda
BACKGROUND: Agonist and antagonist muscle co-contractions during motor tasks are greater in the elderly than in young adults. During normal walking, muscle co-contraction increases with gait speed in young adults, but not in elderly adults. However, no study has compared the effects of speed on muscle co-contraction of the ankle joint during dynamic postural control in young and elderly adults. We compared muscle co-contractions of the ankle joint between young and elderly subjects during a functional stability boundary test at different speeds...
August 2, 2017: Journal of Physiological Anthropology
https://www.readbyqxmd.com/read/28759982/the-validity-and-reliability-of-a-dynamic-neuromuscular-stabilization-heel-sliding-test-for-core-stability
#11
Young Joo Cha, Jae Jin Lee, Do Hyun Kim, Joshua Sung H You
BACKGROUND: Core stabilization plays an important role in the regulation of postural stability. To overcome shortcomings associated with pain and severe core instability during conventional core stabilization tests, we recently developed the dynamic neuromuscular stabilization-based heel sliding (DNS-HS) test. OBJECTIVE: The purpose of this study was to establish the criterion validity and test-retest reliability of the novel DNS-HS test. METHOD: Twenty young adults with core instability completed both the bilateral straight leg lowering test (BSLLT) and DNS-HS test for the criterion validity study and repeated the DNS-HS test for the test-retest reliability study...
July 21, 2017: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
https://www.readbyqxmd.com/read/28730881/comparison-of-jump-landing-protocols-with-biodex-balance-system-as-measures-of-dynamic-postural-stability-in-athletes
#12
Zarko Krkeljas
The objective of the study was to determine whether a relationship exists between the two common methods for assessing postural stability in athletes: the time-to-stabilisation (TTS) via force-plate and the Biodex Balance System (BBS). The conditions under which these measurements assess dynamic postural control may not provide sufficient feedback to practitioners. Fourty-four amateur soccer players with no history of musculoskeletal disorders volunteered for the study. Pearson correlation was used to compare the anterior-posterior (AP), medio-lateral (ML), and the overall stability indexes measured by BBS, with the corresponding parameters of TTS assessed via force plate...
July 21, 2017: Sports Biomechanics
https://www.readbyqxmd.com/read/28723821/can-a-balance-wristband-influence-postural-control
#13
Sven Eichhorn, Sonja Foerster, Benedikt Friemert, Christian Willy, Hans-Joachim Riesner, Hans-Georg Palm
Top sports performances cannot be achieved without a high level of postural control. Balance wristbands purport to improve the mental and physical balance of the wearer. It is still unclear, however, whether these wristbands can indeed enhance postural control. Our purpose was to ascertain by means of computerized dynamic posturography whether balance wristbands can improve postural stability.In this randomized controlled single-blind clinical study, posturography was used to assess postural control in 179 healthy subjects with or without a balance wristband...
July 14, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28717619/comparison-of-dynamic-postural-stability-scores-between-athletes-with-and-without-chronic-ankle-instability-during-lateral-jump-landing
#14
Zeinab Shiravi, Azadeh Shadmehr, Saeed Talebian Moghadam, Behrouz Attarbashi Moghadam
BACKGROUNDS: Many ankle injuries occur while participating in sports that require jumping and landing such as basketball, volleyball and soccer. Most recent studies have investigated dynamic postural stability of patients with chronic ankle instability after landing from a forward jump. The present study aimed to investigate the dynamic postural stability of the athletes who suffer from chronic ankle sprain while landing from a lateral jump. METHODS: Twelve athletes with self-reported unilateral chronic ankle instability (4 females and 8 males) and 12 matched controls (3 females and 9 males) voluntarily participated in the study...
January 2017: Muscles, Ligaments and Tendons Journal
https://www.readbyqxmd.com/read/28714826/effects-of-peroneal-muscles-fatigue-on-dynamic-stability-following-lateral-hop-landing-time-to-stabilization-vs-dynamic-postural-stability-index
#15
Kazem Malmir, Gholam Reza Olyaei, Saeed Talebian, Ali Ashraf Jamshidi, Majid Ashraf Ganguie
CONTEXT: Dynamic stability is a necessary requirement in many sports competitions. Muscle fatigue, which can impair stability, may be occurred in many sports competitions in which lateral movements and landing repeated frequently. OBJECTIVE: To assess the effects of peroneal muscles fatigue on dynamic stability following lateral hop landing through measuring time to stabilization (TTS) and dynamic postural stability index (DPSI). DESIGN: Quasi-experimental...
July 17, 2017: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/28714764/abdominal-hollowing-reduces-lateral-trunk-displacement-during-single-leg-squats-in-healthy-females-but-does-not-affect-peak-hip-abduction-angle-or-knee-abductio-angle-moment
#16
Lukas D Linde, Jessica Archibald, Eve C Lampert, John Z Srbely
CONTEXT: Females suffer 4-6 times more non-contact anterior cruciate ligament (ACL) injuries than males due to neuromuscular control deficits of the hip musculature leading to increases in hip adduction angle, knee abduction angle, and knee abduction moment during dynamic tasks such as single-leg squats. Lateral trunk displacement has been further related to ACL injury risk in females, leading to the incorporation of core strength/stability exercises in ACL preventative training programs...
July 17, 2017: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/28682215/could-slackline-training-complement-the-fifa-11-programme-regarding-training-of-neuromuscular-control
#17
Tobias Jäger, Julian Kiefer, Inge Werner, Peter A Federolf
The current study compared changes in neuromuscular control between slackline training and the stabilization training elements of the FIFA 11+ programme. Twenty-five students in 2 groups performed a 12-unit training programme. The slackline training group (n = 13) exclusively trained with a slackline. The stabilization training group (n = 12) practised exercises as described in the second part of the FIFA 11+ programme. Improvements in balance were assessed using three tests for dynamic, quasi-static, and perturbed postural control: the star excursion balance test (SEBT), the closed-eye single-leg stance, and the MFT S3-Check...
September 2017: European Journal of Sport Science
https://www.readbyqxmd.com/read/28656163/responsiveness-of-static-and-dynamic-postural-balance-measures-in-patients-with-anterior-cruciate-ligament-reconstruction-following-physiotherapy-intervention
#18
Neda Mostafaee, Mohammad J Shaterzadeh Yazdi, Hossein Negahban, Shahin Goharpey, Mohammad Mehravar, Nahid Pirayeh
BACKGROUND: The main goal of physiotherapy for patients with anterior cruciate ligament reconstruction (ACL-R) is to improve postural control and retain knee function. Therefore, clinicians need to use evaluative tools that assess postural changes during physiotherapy. To maximize the clinical utility of the results of these tools, the extracted measures should have appropriate psychometric properties of reliability, validity and responsiveness. No study has yet addressed responsiveness of postural measures in these patients...
May 2017: Archives of Bone and Joint Surgery
https://www.readbyqxmd.com/read/28626327/the-effects-of-dynamic-exercise-using-the-proprioceptive-neuromuscular-facilitation-pattern-on-posture-in-healthy-adults
#19
Misuk Cho, Wontae Gong
[Purpose] The purpose of this study is to examine the effects of dynamic exercise utilizing the proprioceptor neuromuscular facilitation pattern accompanied by abdominal drawing-in exercises on posture in healthy adults. [Subjects and Methods] The total number of subjects were 32; 16 were randomly placed in the training group, and the remaining 16 made up the control group. The subjects in the training group conducted 5 sets of dynamic exercises utilizing the proprioceptor neuromuscular facilitation patterns each day, 3 times a week for 6 weeks...
June 2017: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/28623390/disturbed-cervical-proprioception-affects-perception-of-spatial-orientation-while-in-motion
#20
Eva-Maj Malmström, Per-Anders Fransson, Terese Jaxmar Bruinen, Semir Facic, Fredrik Tjernström
The proprioceptive, visual and vestibular sensory systems interact to maintain dynamic stability during movement. The relative importance and interplay between these sensory systems is still not fully understood. Increased knowledge about spatial perception and postural orientation would provide better understanding of balance disorders, and their rehabilitation. Displacement of the body in space was recorded in 16 healthy subjects performing a sequence of stepping-in-place tests without any visual or auditory cues...
June 17, 2017: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
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