scholarly journals Assessment of Balance Recovery Strategies During Manipulation of Somatosensory, Vision, and Vestibular Systems in Deaf Persons

2019 ◽  
pp. 107-116
Author(s):  
Mansour Sahebozamani ◽  
Asma Salari ◽  
Abdolhamid Daneshjoo ◽  
Fatemeh Karimi Afshar
Keyword(s):  
Balance Recovery ◽  
Recovery Strategies ◽  
Deaf Persons

scholarly journals Identifying and Characterizing Types of Balance Recovery Strategies Among Females and Males to Prevent Injuries in Free-Standing Public Transport Passengers

2021 ◽  
Vol 9 ◽  
Author(s):  
Jia-Cheng Xu ◽  
Ary P. Silvano ◽  
Arne Keller ◽  
Simon Krašna ◽  
Robert Thomson ◽  
...  
Keyword(s):  
Public Transport ◽  
Ordinal Data ◽  
High Speed ◽  
Recovery Strategy ◽  
Free Standing ◽  
Balance Recovery ◽  
High Acceleration ◽  
Initial Strategy ◽  
Recovery Strategies ◽  
Acceleration And Deceleration

Free-standing passengers on public transport are subjected to perturbations during non-collision incidents caused by driver maneuvers, increasing the risk of injury. In the literature, the step strategy is described as a recovery strategy during severe perturbations. However, stepping strategies increase body displacement, ultimately subjecting passengers to higher risk of impacts and falls on public transport. This study investigates the influence of different recovery strategies on the outcome of balance recovery of free-standing public transport passengers, challenged in postural balance by the non-uniform vehicle dynamics. From high-speed video recordings, a qualitative investigation of the balance responses of volunteer participants in a laboratory experiment was provided. On a linearly moving platform, 24 healthy volunteers (11 females and 13 males) were subjected to perturbation profiles of different magnitude, shape and direction, mimicking the typical acceleration and deceleration behavior of a bus. A methodology categorizing the balancing reaction to an initial strategy and a recovery strategy, was used to qualitatively identify, characterize and, evaluate the different balance strategies. The effectiveness of different strategies was assessed with a grading criterion. Statistical analysis based on these ordinal data was provided. The results show that the current definition in the literature of the step strategy is too primitive to describe the different identified recovery strategies. In the volunteers with the most successful balancing outcome, a particularly effective balance recovery strategy not yet described in the literature was identified, labeled the fighting stance. High jerk perturbations seemed to induce faster and more successful balance recovery, mainly for those adopting the fighting stance, compared to the high acceleration and braking perturbation profiles. Compared to the pure step strategy, the characteristics of the fighting stance seem to increase the ability to withstand higher perturbations by increasing postural stability to limit body displacement.

Abstract TMP88: Slipping, Tripping, and Rapid Ambulation are Key Fall Triggers for Stroke Survivors

Stroke ◽  
2013 ◽  
Vol 44 (suppl_1) ◽  
Author(s):  
Tiffany M Hoke ◽  
Ruth E Taylor-Piliae
Keyword(s):  
Fall Prevention ◽  
Exercise Intervention ◽  
Balance Control ◽  
Safety Evaluation ◽  
Community Dwelling ◽  
Stroke Survivors ◽  
Balance Recovery ◽  
Post Stroke ◽  
Recovery Strategies ◽  
Near Falls

Background: Stroke survivors fall up to seven times more annually than healthy adults of a similar age. The inability to recover balance from slipping, tripping, or rapid ambulation accounts for the majority of falls, while balance control can prevent falls. An examination of the triggers for falls and balance recovery strategies for near falls is crucial for fall prevention in stroke survivors. Purpose: To examine the self-reported triggers for falls and balance recovery strategies for near falls among community-dwelling stroke survivors. Methods: Descriptive study examining fall-related data from stroke survivors (n=89) aged ≥ 50 years, at ≥ 3 months post-stroke, participating in a 12-week exercise intervention study. All subjects were interviewed weekly to ascertain fall/near fall data over the 12 weeks. Falls were defined as: “events in which subjects end up on the floor or ground when they did not expect to.” Near falls were defined as: “events in which subjects recovered their balance without falling.” Results: Subjects (46% women) were on average 70±10 years old. The majority reported an ischemic stroke (80%), were White/European-American (79%), married/partnered (60%), college-educated (79%), and retired/unemployed (93%). Over the 12-week trial, there were a total of 124 fall-related events (n=34 falls, n=90 near falls); all events happened at home. Most falls happened due to slipping or tripping (21%) or rapid ambulation (18%). Other reported fall triggers included: legs or knees giving way (12%), bathroom related incidents such as incontinence (12%), reaching or leaning (6%), and vertigo or syncope (3%). Subjects most commonly recovered their balance without falling by grabbing onto or leaning against something (62%). A total of 29 (23%) fall-related events resulted in an injury, though only 8% of those events were evaluated by a healthcare provider. Conclusion: Our data suggests that stroke survivors fall most frequently as a result of slipping, tripping or rapid ambulation. Future studies investigating the effects of fall prevention strategies on these fall triggers are recommended. Since balance recovery was aided by grabbing onto or leaning against something, post-stroke home safety evaluation is essential in preventing falls.

Can Momentum-Based Control Predict Human Balance Recovery Strategies?

2020 ◽  
Vol 28 (9) ◽  
pp. 2015-2024
Author(s):  
C. Bayon ◽  
A. R. Emmens ◽  
M. Afschrift ◽  
T. Van Wouwe ◽  
A. Q. L. Keemink ◽  
...  
Keyword(s):  
Balance Recovery ◽  
Recovery Strategies ◽  
Human Balance

Grab Bar Use Influences Fall Hazard During Bathtub Exit

2021 ◽  
pp. 001872082110598
Author(s):  
Iris C. Levine ◽  
Roger E. Montgomery ◽  
Alison C. Novak
Keyword(s):  
Fall Prevention ◽  
Transfer Task ◽  
Balance Recovery ◽  
Video Cameras ◽  
Injurious Falls ◽  
Self Sufficiency ◽  
Cue Use ◽  
Recovery Strategies ◽  
Balance Loss ◽  
Transfer Tasks

Objective This study evaluated the hazard (risk of unrecovered balance loss and hazardous fall) and strategies associated with grab bar use, compared to no grab bar use, during unexpected balance loss initiated whilst exiting a bathtub. Background While independent bathing is critical for maintaining self-sufficiency, injurious falls during bathing transfer tasks are common. Grab bars are recommended to support bathing tasks, but no evidence exists regarding fall prevention efficacy. Method Sixty-three adults completed a hazardous bathtub transfer task, experiencing an unpredictable external balance perturbation while stepping from a slippery bathtub to a dry surface. Thirty-two were provided a grab bar, while 31 had no grab bar available. Slips and grab bar use were recorded via four video cameras. Slip occurrence and strategy were identified by two independent video coders. Results Participants who had a grab bar were 75.8% more likely to recover their balance during the task than those who did not have a grab bar. Successful grab bar grasp was associated with balance recovery in all cases. Attempts to stabilize using other environmental elements, or using internal strategies only, were less successful balance recovery strategies. Grab bar presence appeared to cue use of the environment for stability. Proactive grasp and other strategies modified grasping success. Conclusion Grab bars appear to provide effective support for recovery from unexpected balance loss. Grab bar presence may instigate development of fall prevention strategies prior to loss of balance. Application Bathroom designs with grab bars may reduce frequency of fall-related injuries during bathing transfer tasks.

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