In this experience report, we describe the experiences of volunteer assistive device designers, clinicians, and human computer interaction fabrication researchers who met at a summit on Do-It-Yourself Assistive Technology. From perspectives these stakeholders, elucidate significant challenges introducing rapid prototyping to design professional technology, opportunities for advancing technology. We in context an emerging gap between clinical design. Whereas process is fully led by question,...

The Hawthorne effect, a subcategory of reactivity, causes human behavior to change when under observation. Such an effect may apply gait variation persons with prosthetics or orthotics devices.This study investigated whether the presence observers directly affects pattern users lower limb prostheses.Within-subject intervention study.Primary outcome measures were parameters initial double support time and upper body lateral tilt angle, which collected mobile sensor attached subjects' back. To...

Prosthesis-integrated sensors are appealing for use in clinical settings where gait analysis equipment is unavailable, but accurate knowledge of patients' performance desired. Data obtained from load cells (inferring joint moments) may aid clinicians the prescription, alignment, and rehabilitation persons with limb loss. The purpose this study was to assess accuracy prosthesis-integrated routine practice. Level ground walking transtibial amputation concurrently measured a commercially...

In Brief Optimal performance of artificial limbs is still largely dependent on the accurate evaluation their biomechanical behavior. The accumulated expertise prosthetist and indirect measurements socket joint kinematics are currently used in a trial error format for prosthesis-socket maximization. direct unobtrusive assessment residual limb-skin slippage within during dynamic high-speed activities remains an unresolved challenge till date. This further complicated case transtibial amputees...

A variety of prescribed accommodation periods have been used in published prosthesis intervention studies that examined biomechanical outcomes. Few investigators included repeated measurements their study design, leaving questions as to how measured outcomes change amputees acclimate a new prosthesis. This paper is the product our investigation whether gait variables were affected by duration period, and assess relationship between subjective perception participants. sample transtibial...

It has long been reported that a range of prosthesis alignments is acceptable in trans-tibial prosthetics. This was shown to be smaller when walking on uneven surfaces. also argued findings gait with prostheses were obtained under laboratory conditions are limited their applicability real-life environments.This study investigated the hypothesis efforts compensate for suboptimal by active users become less effective levels physical exertion increase.A 2 × repeated-measures analysis variance...

ABSTRACT Introduction The quality of lower-limb prosthetic alignment cannot easily be measured directly but may described by its effects on gait comfort and efficiency. It is known that stability step variability are correlated, as alignment. This study investigated the hypothesis correlated. would have implication can to assess (and possibly other relevant factors such fit componentry selection). Materials Methods Twelve experienced users transtibial prostheses were subjected a protocol...

An adaptable bedding surface for the prophylaxis and treatment of decubitus ulcers was developed evaluated in a number preclinical studies. The new bed reduced average contact pressure peaks prolonged supine rest while significantly decelerating onset progression sores. A special advantage is its discrete, independently-mobile pin elements that allow localized implementation sensors diagnostic tools structure. currently being clinical trials with at series different patient populations ulcer...

Abstract Background In people living with limb loss, addressing the resulting functional deficit prostheses increases risk for secondary conditions such as pressure sores, impaired blood perfusion, and injuries from accidental falls. Any of those occurrences can render prosthesis temporarily useless, making it challenging users to engage in many activities daily life, including work, exercise, social participation. Many described issues originate at interface between residual prosthetic...

Daily volume loss of the residual limp is reported as one greatest challenges in socket fitting. Assisted vacuum systems were developed to prevent stump's and maintain sufficient fit. There however very little quantitative biomechanical research for evaluation below knee sockets with assisted systems. Highly accurate in-vivo measurements became recently available using high-speed, high resolution biplane dynamic rontgen stereogrammetric analysis (DRSA) instrumentation. This study presents...

BACKGROUND: Prosthetists conventionally evaluate alignment based on visual interpretation of patients' gait, which is convenient, but largely subjective and depends prosthetists' experience. OBJECTIVE: In this paper, we explore the feasibility using a support vector machine (SVM) approach to automatically detect misalignment trans-tibial prostheses through ground reaction force (GRF). METHODS: Alternate classification algorithms with varying kernels feature sets were compared assess...

Artificial turf, soon after being introduced in the 1980s, became associated with an increased injury incidence football players. While more recent generations of artificial turf have mitigated problem, perception material is still widely negative. So, decision to play 2015 Fe'de'ration Internationale de Football Association Women s World Cup Canada on was met vocal criticism by many One common approach assess quantify risk differences playing surfaces. This, however, does not account for...

Rehabilitation of persons with bilateral transtibial amputation is challenged by the unavailability a sound leg to provide stability in standing and gait. Absence limb complicates both prosthetic fitting gait training. Little evidence related training available guide these clinical procedures. This work addresses questions that are frequently encountered prosthetists, including there disparity strength or controllability between limbs and, if so, which favored dominant leg? A laterality may...

Gait retraining in people with musculoskeletal and/or neurological impairments requires sustained dedicated efforts by the patient and rehabilitation therapist. Various technical approaches have been proposed utilized to improve effectiveness of training interventions. Among most promising is provision real-time feedback information patient, which has used success on treadmill-based interventions past. We are describing a mobile visual system that intended work user's everyday-life...

Among the challenges of living with lower limb loss is increased risk long-term health problems that can be either attributed directly to amputation surgery and/or prosthetic rehabilitation or indirectly a disability-induced sedentary lifestyle. These are exacerbated by poorly fit sockets. There knowledge gap regarding how socket design affects in-socket mechanics and affect patient-reported comfort function. The objectives this study (1) gain better understanding residual in transfemoral...

Competitive darts has become increasingly popular over the past few decades, and efforts have been made to game recognized as an Olympic sport in future. The raised profile of associated rewards bring up new challenges for integrity game, athletes are incentivized exploit rule ambiguities order gain competitive advantages. In this research, it was hypothesized that uneven leg lengths weights, which comparatively easily realizable prosthetic limbs, allow players lean closer target thus...

Introduction A research study's sound approach to statistical analysis holds the key its validity and, thereby, credibility in medical community. Previous shows that of prosthetics is often rated at comparably low levels, partly because reported small sample sizes. We analyzed how authors studies on prosthetic knee componentry have limitations regarding size and composition. To end, we calculated observed powers recent literature investigate whether sizes were sufficient. further...