Lower impulsive loadings following intensive weight loss after bariatric surgery in level and stair walking: A preliminary study

Bragge, Timo; Lyytinen, Tarja; Hakkarainen, Marko; Vartiainen, Paavo; Liikavainio, Tuomas; Karjalainen, Pasi A.; Arokoski, Jari

doi:10.1016/j.knee.2013.11.012

Cited by 12 publications

(8 citation statements)

References 46 publications

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“…In addition, the test does not allow for exploration of speed alteration itself, which is known to bring key information (Toebes et al, 2015). Eventually, imposing a given speed allows for matching with controls, with data from the literature (Bragge et al, 2014) or between baseline and follow-up measurements (Ellis et al, 2015; Schmitz-Hubsch et al, 2016). However, as for fastest speed walking, the pattern of walk is modified and speed alteration itself is not explored.…”

Section: Discussionmentioning

confidence: 99%

Inertial Sensors to Assess Gait Quality in Patients with Neurological Disorders: A Systematic Review of Technical and Analytical Challenges

et al. 2017

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Gait disorders are major causes of falls in patients with neurological diseases. Understanding these disorders allows prevention and better insights into underlying diseases. InertiaLocoGraphy (ILG) –the quantification of gait by using inertial measurement units (IMUs) –shows great potential to address this public health challenge, but protocols vary widely and normative values of gait parameters are still unavailable. This systematic review critically compares ILG protocols, questions features extracted from inertial signals and proposes a semeiological analysis of clinimetric characteristics for use in neurological clinical routine. For this systematic review, PubMed, Cochrane and EMBASE were searched for articles assessing gait quality by using IMUs that were published from January 1, 2014 to August 31, 2016. ILG was used to assess gait in a wide range of neurological disorders – including Parkinson disease, mild cognitive impairment, Alzheimer disease, cerebral palsy, and cerebellar atrophy – as well as in the faller or frail older population and in people presenting rheumatological pathologies. However, results have not yet been driving changes in clinical practice. One reason could be that studies mainly aimed at comparing pathological gait to healthy gait, but there is stronger need for semiological descriptions of gait perturbation, severity or prognostic assessment. Furthermore, protocols used to assess gait using IMUs are too many. Likely, outcomes are highly heterogeneous and difficult to compare across large panels of studies. Therefore, homogenization is needed to foster the use of ILG to assess gait quality in neurological routine practice. The pros and cons of each protocol are emphasized so that a compromise can be reached. As well, analysis of seven complementary clinical criteria (springiness, sturdiness, smoothness, steadiness, stability, symmetry, synchronization) is advocated.

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Section: Discussionmentioning

confidence: 99%

Inertial Sensors to Assess Gait Quality in Patients with Neurological Disorders: A Systematic Review of Technical and Analytical Challenges

et al. 2017

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“…Yet, these differences are associated with increased safety risks [15]. Decreased weight following surgery can minimize obesity’s effect on walking biomechanics; adults show decreased hip and knee joint moments [10] and ground reaction forces [24, 25] following bariatric surgery. Previous work shows kinematic differences during obstacle crossing [4, 16, 26].…”

Section: Discussionmentioning

confidence: 99%

Changes in spatiotemporal gait patterns during flat ground walking and obstacle crossing 1 year after bariatric surgery

Gill

Walsh

Pratt

et al. 2016

Surgery for Obesity and Related Diseases

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Background Obesity negatively impacts motor function leading to an increase in fall risk. Massive weight loss improves some aspects of gait on flat ground. However, we have little information about whether gait changes during flat ground walking and during more complex motor tasks beyond flat ground walking. Objectives Our objectives were to examine how massive weight loss after Roux-en-Y bariatric surgery affects gait during flat ground walking and obstacle crossing one year post surgery. Setting United States Methods Nineteen adult females walked under five conditions: initial baseline walking on flat ground, crossing three obstacle heights, and final baseline walking on flat ground for a total of 25 trials. Spatio-temporal gait parameters were collected simultaneously using a gait carpet and body-worn sensors. Results Gait improved post surgery with the strongest effect observed for double limb support time during flat ground walking (p<.001) and obstacle crossing (p<.001). The reduction in body mass index was correlated with improved swing (p<.01) and double limb support time (p<.01) during flat ground walking and improved swing during obstacle crossing on low (p<.01), medium (p<.01), and high (p<.01) obstacles. Improved gait post surgery was more pronounced on high obstacles for velocity (p<.001) and double limb support time (p<.001). Conclusions Massive weight loss results in improved spatio-temporal gait patterns during flat ground walking. Examining how massive weight loss affects spatio-temporal gait may help create ways to encourage a more active lifestyle for adults with obesity.

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“…There are at least two major conditions where the detrimental effects of physical effort on automaticity may manifest as poorer mobility function: weakness and obesity. Both weakness and obesity increase the physical effort needed to perform mobility tasks (Hortobágyi et al, 2003 ; Bragge et al, 2014 ), and both are common in clinical populations. Consistent with the assertion that obesity increases the attentional demands of postural control, Mignardot and colleagues showed that both postural sway and auditory reaction time were worse during unipedal stance for obese vs. non-obese participants (Mignardot et al, 2010 ).…”

Section: Mechanistic Factors That Influence Automaticitymentioning

confidence: 99%

Automaticity of walking: functional significance, mechanisms, measurement and rehabilitation strategies

Clark

2015

Front. Hum. Neurosci.

303

276

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Automaticity is a hallmark feature of walking in adults who are healthy and well-functioning. In the context of walking, “automaticity” refers to the ability of the nervous system to successfully control typical steady state walking with minimal use of attention-demanding executive control resources. Converging lines of evidence indicate that walking deficits and disorders are characterized in part by a shift in the locomotor control strategy from healthy automaticity to compensatory executive control. This is potentially detrimental to walking performance, as an executive control strategy is not optimized for locomotor control. Furthermore, it places excessive demands on a limited pool of executive reserves. The result is compromised ability to perform basic and complex walking tasks and heightened risk for adverse mobility outcomes including falls. Strategies for rehabilitation of automaticity are not well defined, which is due to both a lack of systematic research into the causes of impaired automaticity and to a lack of robust neurophysiological assessments by which to gauge automaticity. These gaps in knowledge are concerning given the serious functional implications of compromised automaticity. Therefore, the objective of this article is to advance the science of automaticity of walking by consolidating evidence and identifying gaps in knowledge regarding: (a) functional significance of automaticity; (b) neurophysiology of automaticity; (c) measurement of automaticity; (d) mechanistic factors that compromise automaticity; and (e) strategies for rehabilitation of automaticity.

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Lower impulsive loadings following intensive weight loss after bariatric surgery in level and stair walking: A preliminary study

Cited by 12 publications

References 46 publications

Inertial Sensors to Assess Gait Quality in Patients with Neurological Disorders: A Systematic Review of Technical and Analytical Challenges

Inertial Sensors to Assess Gait Quality in Patients with Neurological Disorders: A Systematic Review of Technical and Analytical Challenges

Changes in spatiotemporal gait patterns during flat ground walking and obstacle crossing 1 year after bariatric surgery

Automaticity of walking: functional significance, mechanisms, measurement and rehabilitation strategies

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