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Standing balance

Tania E Sakanaka, Jaspret Gill, Martin D Lakie, Raymond F Reynolds
Individuals may stand with a range of ankle angles. Furthermore, shoes or floor surfaces may elevate or depress their heels. Here we ask how these situations impact ankle stiffness and balance. We performed two studies (each with 10 participants) in which the triceps surae, Achilles tendon and aponeurosis were stretched either passively, by rotating the support surface, or actively by leaning forward. Participants stood freely on footplates which could rotate around the ankle joint axis. Brief, small stiffness-measuring perturbations (<0...
2018: PloS One
Esther M J Bekkers, Kim Dockx, Surendar Devan, Sam Van Rossom, Sabine M P Verschueren, Bastiaan R Bloem, Alice Nieuwboer
BACKGROUND: Postural instability and freezing of gait (FOG) are major problems in patients with Parkinson's disease (PD), and both contribute to falls. However, the interrelationship between these 2 deficits is still unclear. OBJECTIVE: This study investigated whether dual-tasking influenced postural control differently in freezers (FOG+) and nonfreezers (FOG-). METHODS: Thirty-three patients with PD (19 FOG+, 14 FOG-, well-matched) and 28 healthy controls underwent 4 postural control tasks, consisting of standing on either stable or unstable surfaces with eyes open or closed...
February 2018: Neurorehabilitation and Neural Repair
Elan D Louis, James H Meyers, Ashley D Cristal, Ruby Hickman, Pam Factor-Litvak
BACKGROUND: Endophenotypes are measurable clinical characteristics that may be present in individuals with increased risk for disease (e.g., unaffected family members). Endophenotypes are useful; they may clarify diagnosis in genetic studies and foster the development of animal models. In recent years, problems with balance and mild gait ataxia have been associated with essential tremor (ET). We compared gait and balance of first-degree relatives of ET cases (FD-ET) to that of age-matched controls (Co)...
March 13, 2018: Parkinsonism & related Disorders
DongGeon Lee, HaNa Kim, HyunJi An, JiEun Jang, SoungKyun Hong, SunHye Jung, Kyeongbong Lee, Myong-Ryol Choi, Kyung-Hee Lee, GyuChang Lee
[Purpose] The purpose of the present study was to compare the postural sway of healthy adults standing on different types of balance pads. [Subjects and Methods] Nine healthy adults participated in this study. Postural body sway was measured while participants were standing on four different types of balance pads: Balance-pad Elite (BE), Aero-Step XL (AS), Dynair Ballkissen Senso (DBS), and Dynair Ballkissen XXL Meditation and Yoga (DBMY). A Wii Balance Board interfaced with Balancia software was used to measure postural body sway...
February 2018: Journal of Physical Therapy Science
Ilaria Cavazzana, Laura Andreoli, Maarteen Limper, Franco Franceschini, Angela Tincani
PURPOSE OF REVIEW: This review focuses on new clinical aspects of antiphospholipid syndrome (APS) in the last 5 years. RECENT FINDINGS: The pathogenesis of APS is related to endothelial activation by mechanisms other than autoantibody-mediated massive coagulation. These include Toll-like receptors, the m-TORC pathway, and neutrophil activation, inducing an uncontrolled inflammatory cascade. Given these new pathogenetic hypotheses, the treatment of APS could be directed towards a fine balance between anticoagulation and immunomodulation...
March 15, 2018: Current Rheumatology Reports
Arshad Nawaz Malik, Imran Amjad
Objective of the study was to determine the effect of circuit gait training versus traditional gait training on mobility performance and quality of life in sub-acute and chronic stroke patients. A randomized control trial was conducted and stroke patients of either gender having 2-4 score on Rankin Modified Scale and able to stand 10 seconds were included in study. A total of 32 individuals were randomly assigned into two groups. They were assigned a 40-50 min/session for 3-4 days/week over length of 06 weeks...
March 2018: JPMA. the Journal of the Pakistan Medical Association
Kimiya Fujio, Hiroki Obata, Taku Kitamura, Noritaka Kawashima, Kimitaka Nakazawa
Recent studies demonstrated that the corticospinal pathway is one of the key nodes for the feedback control of human standing and that the excitability is flexibly changed according to the current state of posture. However, it has been unclear whether this pathway is also involved in a predictive control of human standing. Here, we investigated whether the corticospinal excitability of the soleus (SOL) and tibialis anterior (TA) muscles during standing would be modulated anticipatorily when perturbation was impending...
2018: Frontiers in Human Neuroscience
Stefan O Schrade, Katrin Dätwyler, Marius Stücheli, Kathrin Studer, Daniel-Alexander Türk, Mirko Meboldt, Roger Gassert, Olivier Lambercy
BACKGROUND: Powered exoskeletons are a promising approach to restore the ability to walk after spinal cord injury (SCI). However, current exoskeletons remain limited in their walking speed and ability to support tasks of daily living, such as stair climbing or overcoming ramps. Moreover, training progress for such advanced mobility tasks is rarely reported in literature. The work presented here aims to demonstrate the basic functionality of the VariLeg exoskeleton and its ability to enable people with motor complete SCI to perform mobility tasks of daily life...
March 13, 2018: Journal of Neuroengineering and Rehabilitation
Megan Knox, Aimee Stewart, Carol L Richards
OBJECTIVE: To evaluate a minimal dose intervention of six 1-hour sessions of task-oriented circuit gait training including a caregiver over a 12-week period to persons post stroke in the South African public health sector. DESIGN: Stratified, single blinded, randomized controlled trial with three intervention groups. PARTICIPANTS: Persons post stroke ( n = 144, mean age 50 years, 72 women), mean 9.5 weeks post stroke. INTERVENTIONS: Task group ( n = 51)-accompanied by a caregiver; task-oriented circuit gait training (to improve strength, balance, and task performance while standing and walking)...
March 1, 2018: Clinical Rehabilitation
Mozhgan Faraji Aylar, Amir Ali Jafarnezhadgero, Fatemeh Salari Esker
BACKGROUND: The association between visual sensory and sit-to-stand ground reaction force characteristics is not clear. Impulse is the amount of force applied over a period of time. Also, free moment represents the vertical moment applied in the center of pressure (COP). RESEARCH QUESTION: How the ground reaction force components, vertical loading rate, impulses and free moment respond to long and short term restricted visual information? METHODS: Fifteen female children with congenital blindness and 45 healthy girls with no visual impairments participated in this study...
March 5, 2018: Gait & Posture
Jonathan W Wallace, Brandon G Rasman, Brian H Dalton
Maintaining standing balance involves multisensory processing and integration to produce dynamic motor responses. Electrical vestibular stimulation (EVS) delivered over the mastoid processes can be used to explore the vestibular control of balance. The purpose of this study was to determine whether intrinsic foot muscles exhibit vestibular-evoked balance responses and to characterize the traits associated with these responses. Electromyography (EMG) of the abductor hallucis, abductor digiti minimi and medial gastrocnemius and anterior-posterior (AP) forces were sampled while quietly standing participants were subjected to a random continuous EVS signal (peak-to-peak amplitude = ±3 mA)...
March 7, 2018: Neuroscience
Marie Hutchinson, Neil Wendt, Stuart Trevor Smith
The 2011 Productivity Commission report, Caring for Older Australians, observed that as the number of older Australians rises and the demand for aged care services increases, there will be a commensurate increase in demand for a well-trained aged care workforce. One of the significant issues impacting upon the ability of the aged services sector to respond to a growing number of older adults is to attract and retain sufficient numbers of staff. A number of factors are acknowledged to contribute to a failure of the aged care sector to attract and retain workers including: poor sector reputation, poor working conditions, including high client-staff ratios, a lack of career paths and professional development opportunities and low rates of remuneration...
2018: Studies in Health Technology and Informatics
Ahmad H Alghadir, Hamayun Zafar, Shahnawaz Anwer
OBJECTIVE: The present study aimed to evaluate the effect of footwear on standing balance in healthy young adult males. METHODS: Thirty healthy male participants aged 20-30 years were tested for standing balance on the Balance Master on three occasions, including wearing a sandal, standard shoe, or no footwear (barefoot). The tests of postural stability include; "Modified Clinical Test of Sensory Interaction on Balance" (mCTSIB), "Unilateral Stance" (US), and the "Limits of Stability" (LOS)...
March 1, 2018: Journal of Musculoskeletal & Neuronal Interactions
Jaewook Shin, Hyunok Lee, Wonsik Bae, Jwajun Kim
BACKGROUND: Identifying the functional status of patients after total knee arthroplasty is important. This study aimed to examine the differences in sit-to-stand and static standing ability balance between patients who underwent total knee arthroplasty and healthy participants. METHODS: Twenty patients (mean age 70.05 years) who underwent total knee arthroplasty and 20 healthy participants (mean age 69.20 years) participated in this study. To assess the participants' sit-to-stand, the Good Balance System (Metitur Ltd, Finland) was used to measure each participant's mediolateral center of pressure (COP) displacement and time required to complete the sit-to-stand movement...
February 9, 2018: Journal of Back and Musculoskeletal Rehabilitation
Ingrid Svensson, Chuansi Gao, Amitava Halder, Gunvor Gard, Måns Magnusson
Working and walking environments often involve standing positions on different surfaces with inclination and different friction. In this study, standing balance of thirteen participants during sudden and irregular external perturbation to calf muscles while standing was investigated. The aim of the study was to evaluate the combined effect of surface inclination and friction on standing balance. The main findings when eyes closed revealed that the standing utilised coefficient of friction (μSUCOF ) increased when the surface was inclined for both high and low friction materials...
March 3, 2018: Industrial Health
Rune Rasmussen, Mette Midttun, Tine Kolenda, Anne-Mette Ragle, Thea Winther Sørensen, Anders Vinther, Bo Zerahn, Maria Pedersen, Karsten Overgaard
BACKGROUND: Fall accidents are a major cause of mortality among the elderly and the leading cause of traumatic brain injury. After a fall, many elderly people never completely recover and need help in coping with everyday life. Due to the increasing older population in the world, injuries, disabilities, and deaths caused by falls are a growing worldwide problem. Muscle weakness leads to greatly increased risk of falling, decreased quality of life, and decline in functional capacity. Muscle mass and muscle power decrease about 40% from age 20 to 80 years, and the level of testosterone decreases with age and leads to impaired muscle mass...
March 2, 2018: JMIR Research Protocols
Priscila de Brito Silva, Natalie Mrachacz-Kersting, Anderson Souza Oliveira, Uwe Gustav Kersting
Standing on unstable surfaces requires more complex motor control mechanisms to sustain balance when compared to firm surfaces. Surface instability enhances the demand to maintain equilibrium and is often used to challenge balance, but little is known about how balance training affects movement strategies to control posture while standing on unstable surfaces. This study aimed at assessing the effects of isolated wobble board (WB) training on movement strategies to maintain balance during single-leg standing on a WB...
February 27, 2018: Human Movement Science
Juh Hyun Shin
PURPOSE: The aim of this study was to examine the effectiveness of an older adult exercise program in a senior-living complex campus. DESIGN: A longitudinal one-group design was used. METHODS: To supply residents with tools to maintain or improve general quality of life, balance, endurance, depression, and functional mobility, the Wellness and Fitness Center at the research setting provided a wide assortment of user-friendly equipment with many options...
March 2018: Rehabilitation Nursing: the Official Journal of the Association of Rehabilitation Nurses
Daniel Leightley, Moi Hoon Yap
The aim of this study was to compare the performance between young adults ( n = 15), healthy old people ( n = 10), and masters athletes ( n = 15) using a depth sensor and automated digital assessment framework. Participants were asked to complete a clinically validated assessment of the sit-to-stand technique (five repetitions), which was recorded using a depth sensor. A feature encoding and evaluation framework to assess balance, core, and limb performance using time- and speed-related measurements was applied to markerless motion capture data...
March 2, 2018: Healthcare (Basel, Switzerland)
Megan C Nelson, Madeline P Casanova, Chantal A Vella
PURPOSE: To investigate differences in energy expenditure (EE), heart rate (HR), productivity, fatigue, and pain while performing desk work while sitting (SIT), standing (STAND), and standing on a balance board (BOARD). METHODS: Thirty healthy adults (60% female; age 39.7 ± 11.8 y; BMI 26.7 ± 5.0 kg·m) employed in sedentary-based jobs volunteered for this randomized crossover trial. Participants performed typing work in three different positions: SIT, STAND, and BOARD; each condition lasting 30 min...
March 1, 2018: Medicine and Science in Sports and Exercise
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