scholarly journals Sit-to-Stand Transition Reveals Acute Fall Risk in Activities of Daily Living

2016 ◽  
Vol 4 ◽  
pp. 1-11 ◽  
Author(s):  
Tomislav Pozaic ◽  
Ulrich Lindemann ◽  
Anna-Karina Grebe ◽  
Wilhelm Stork
Keyword(s):  
Activities Of Daily Living ◽  
Fall Risk ◽  
Daily Living ◽  
Sit To Stand

Propensity for Hip Dislocation in Gait Loading Versus Sit-to-Stand Maneuvers: Implications for Surgical Management of Acetabular Fractures

2010 ◽  
Author(s):  
Erik McDonald ◽  
Meir Marmor ◽  
Jenni M. Buckley ◽  
Amir Matityahu
Keyword(s):  
Activities Of Daily Living ◽  
Daily Living ◽  
Hip Dislocation ◽  
Acetabular Fractures ◽  
Loading Conditions ◽  
Joint Contact Force ◽  
Sit To Stand ◽  
Hip Stability ◽  
Fracture Management ◽  
Joint Contact

Acetabular fractures present a clinical challenge due to the complicated anatomy and difficulty of exposure, reduction, and fixation. There are several indications for surgery including any fracture which is displaced more than 2mm, failure to maintain reduction by closed means, or, for transverse fractures, a roof-arc angle less than 45 degrees (1,2). The last indication was determined by a cadaver model that only evaluated hip stability in the single leg stance phase of the gait cycle (3). Kinesiological models have well established that the magnitude and direction of the joint contact force can deviate substantially from the mechanics of gait loading, particularly for such activities of daily living as sit-to-stand maneuvers and climbing stairs (4,5). Thus, the criteria for fracture stability established using gait-only loading conditions may be inadequate for other activities of daily living. Basic engineering principles would dictate that the most conservative estimate of dislocation potential be used in managing these cases clinically; and it is therefore important to re-evaluate fracture management criteria in alternative loading conditions that have a high potential for dislocation.

Integrated Sensing Techniques for Assistive Chairs

2013 ◽  
Vol 3 (4) ◽  
pp. 58-70
Author(s):  
Hang Lu ◽  
Dayou Li ◽  
John Oyekan ◽  
Carsten Maple
Keyword(s):  
Older People ◽  
Activities Of Daily Living ◽  
Daily Living ◽  
Independent Living ◽  
Premature Death ◽  
The Elderly ◽  
Assistive Devices ◽  
Sit To Stand ◽  
Standing Up ◽  
Elderly Mobility

This paper presents a survey of the contemporary assistive chairs and on-chair sensing approaches of capturing sit-to-stand (STS) movement. Sitting in a chair and standing up from a seated position are activities of daily living (ADLs) performed by humans. However, older people often encounter difficulties with these activities. These difficulties may cause substantial decreasing of the elderly mobility, leading to inactive participation in social activities and increasing the risk of chronic diseases that may cause premature death. Therefore, assisting older people to overcome these difficulties has significance for their independent living. At present, the assistive devices can be allocated in terms of market available ones and experimental prototypes, both of which are discussed here. Afterwards, the authors cast more light on integrated sensing techniques that are currently used with experimental prototypes and create a taxonomy of sensing techniques. Following from this survey, a chair capable of delivering assistance-as-needed is proposed.

Activities of Daily Living and Implant Design: Evaluation of a Femoral Fracture Fixed Plate Implant During Bicycle Pedaling

2009 ◽  
Author(s):  
David W. Wagner ◽  
Alejandro Vallejo
Keyword(s):  
Activities Of Daily Living ◽  
Daily Living ◽  
Stair Climbing ◽  
Implant Design ◽  
Loading Conditions ◽  
Long Term Stability ◽  
Everyday Activities ◽  
Sit To Stand ◽  
Physiological Loading

The process of using activities of daily living to evaluate the performance of implantable devices under physiological loading conditions has been researched [1,2,3,4]. In particular, long-term stability of hip-implants, as related to fatigue, have been evaluated using normal walking [1,2,4], sit to stand [1], stair climbing [2,4], and combinations of everyday activities [3]. Current methods that utilize estimated physiological loading conditions are traditionally used as pass/fail tests to identify whether a particular design performs to a set of minimum specifications for long-term use. Such tests are also traditionally limited to a small number of physiologically representative loading conditions (i.e. walking, stair climbing, sit-to-stand).

Knee Joint Loading Patterns During Activities of Daily Living in TKR Patients

2003 ◽  
Author(s):  
Lisa C. Benson ◽  
Martine LeBerge ◽  
Thomas B. Pace
Keyword(s):  
Knee Joint ◽  
Activities Of Daily Living ◽  
Daily Living ◽  
Inertial Sensors ◽  
Control Group ◽  
Knee Simulator ◽  
Sit To Stand ◽  
Axial Forces ◽  
Loading Patterns ◽  
Total Knee

The kinetics and kinematics of the knee joint during a variety of activities of daily living were studied in a group of total knee replacement (TKR) patients. The parameters examined were those needed to program a force-controlled knee simulator (axial and anterior-posterior (AP) forces, internal-external (IE) moment, and flexion angle). These parameters were calculated for walking, fast walking, stand-to-sit, sit-to-stand, bending, stair ascent and stair descent using body-fixed inertial sensors, a force platform, and estimates of muscles forces. Peak values for loading patterns were not significantly different from those for an age-matched control group. Axial forces were lower in comparison to published results for normal and TKR populations, due to slower cadences and conservative estimates of muscle forces. Peak posterior forces and IE moments were higher than published results. These patterns were combined to form a spectrum loading pattern, with the activities occurring in approximately the same ratios of relative frequency as reported in the literature. The spectrum pattern can be used to program a force-controlled knee simulator in order to apply more relevant loading patterns to knee implants.

The Impact of Diabetic Neuropathy on Activities of Daily Living, Postural Balance and Risk of Falls - A Systematic Review

2021 ◽  
pp. 193229682199792
Author(s):  
Karolina Snopek Khan ◽  
Henning Andersen
Keyword(s):  
Diabetic Neuropathy ◽  
Activities Of Daily Living ◽  
Postural Balance ◽  
Fall Risk ◽  
Daily Living ◽  
Postural Stability ◽  
Cross Sectional ◽  
Risk Of Falls ◽  
Cross Sectional Studies ◽  
The Impact

Objective: The objective of this review is to discuss a compilation of the currently available literature regarding the impact of diabetic neuropathy (DN) on activities of daily living (ADL), postural stability, and risk of falls. Methods: A systematic electronic search strategy was conducted on PubMed/MEDLINE database, Cochrane Library, and Embase in March 2020. This narrative review included clinical cross-sectional studies assessing ADL, postural balance, and falls in adults with DN. All studies underwent a quality assessment based on the Newcastle Ottawa scale developed to assess cross-sectional studies. Results: Forty-two studies were identified. A total of 37 studies evaluated postural stability in DN, 10 studies assessed fall accidents, and three studies assessed ADL in individuals with DN. Seven studies assessed both postural stability and fall accidents, and one study assessed postural stability and ADL. Each of the studied outcome variables was assessed separately. Based on a quality assessment, eight studies were excluded resulting in an evaluation of 34 studies. Conclusions: Diabetic neuropathy has a negative impact on postural balance and gait kinematics combined with an increased fall risk. Because of the few number of studies available, we were unable to evaluate the impact of DN on ADL. Our findings are in concordance with previous reviews, supporting the evidence for DN as a critical measure negatively impacting postural stability and fall risk in individuals with diabetes. Further clinical investigative studies are needed.

scholarly journals Correlation between sit-to-stand ability, dynamic balance, gait speed, and quality of life in stroke population: a non-randomized pilot study

2021 ◽  
Vol 26 (1) ◽  
Author(s):  
Muhammad Azharuddin ◽  
Nayeem U. Zia
Keyword(s):  
Quality Of Life ◽  
Pilot Study ◽  
Activities Of Daily Living ◽  
Gait Speed ◽  
Daily Living ◽  
Dynamic Balance ◽  
Pearson Correlation ◽  
Strong Positive Correlation ◽  
Sit To Stand

Abstract Background “Sit to stand” being a prerequisite for walking, the inability of patients to perform it can result in institutionalization, impaired functioning and mobility in activities of daily living. There was a need to find out whether “sit to stand” ability correlates with gait speed, dynamic balance, and quality of life in stroke patients. It is a pilot study in which sixteen sub-acute and chronic stroke (˃ 6 months) patients aged 45 to 65 years with the ability to walk at least 10 m, Mini Mental State Examination (MMSE) score ˃ 27 were included. Patients with musculoskeletal impairments of lower extremity which would affect walking were excluded from the study. Each patient performed five times sit to stand (5TSTS) from a standard chair and time taken was recorded. Timed up and go (TUG) test and 10-m walk test (10MWT) were used to measure the dynamic balance and gait speed respectively. Stroke Adapted Sickness Impact Profile-30 (SASIP-30) scale was used to determine the quality of life of the patients. Results Correlation between the outcomes of the variables was analyzed using Pearson correlation co-efficient. The 5TSTS scores showed strong positive correlation to TUG (r = 0.823, P < .000) and SASIP-30 (r = 0.841, P < .000). However, moderately strong negative relationship was found between 5TSTS and gait speed (r = −0.639, P < .008). Conclusion The study concludes that change in the 5TSTS performance can affect motor functions like dynamic balance and gait as well as quality of life. Exercise training focusing on sit-to-stand ability may also influence activities of daily living (ADLs) after stroke.

scholarly journals VALIDATION OF AN ELECTROGONIOMETRY SYSTEM AS A MEASURE OF KNEE KINEMATICS DURING ACTIVITIES OF DAILY LIVING

2013 ◽  
Vol 16 (01) ◽  
pp. 1350005
Author(s):  
Samuel G. Urwin ◽  
Deiary F. Kader ◽  
Nick Caplan ◽  
Alan St. Clair Gibson ◽  
Su Stewart
Keyword(s):  
Activities Of Daily Living ◽  
Correlation Coefficient ◽  
Daily Living ◽  
Knee Angle ◽  
Pearson’S Correlation Coefficient ◽  
Stair Ascent ◽  
Sit To Stand ◽  
Stair Descent ◽  
Pearson's Correlation ◽  
Pearson's Correlation Coefficient

Purpose: The increasing use of electrogoniometry (ELG) in clinical research requires the validation of different instrumentation. The purpose of this investigation was to examine the concurrent validity of an ELG system during activities of daily living. Methods: A total of 10 asymptomatic participants gave informed consent to participate. A Biometrics SG150 electrogoniometer was directly compared to a 12 camera three-dimensional motion analysis system during walking, stair ascent, stair descent, sit to stand, and stand to sit activities for the measurement of the right knee angle. Analysis of validity was undertaken by linear regression. Standard error of estimate (SEE), standardized SEE (SSEE), and Pearson's correlation coefficient r were computed for paired trials between systems for each functional activity. Results: The 95% confidence interval of SEE was reasonable between systems across walking (LCI = 2.43°; UCI = 2.91°), stair ascent (LCI = 2.09°; UCI = 2.42°), stair descent (LCI = 1.79°; UCI = 2.10°), sit to stand (LCI = 1.22°; UCI = 1.41°), and stand to sit (LCI = 1.17°; UCI = 1.34°). Pearson's correlation coefficient r across walking (LCI = 0.983; UCI = 0.990), stair ascent (LCI = 0.995; UCI = 0.997), stair descent (LCI = 0.995; UCI = 0.997), sit to stand (LCI = 0.998; UCI = 0.999), and stand to sit (LCI = 0.996; UCI = 0.997) was indicative of a strong linear relationship between systems. Conclusion: ELG is a valid method of measuring the knee angle during activities representative of daily living. The range is within that suggested to be acceptable for the clinical evaluation of patients with musculoskeletal conditions.

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