Yoga for persons with severe visual impairment: a feasibility study

Jeter, Pamela E.; Dagnelie, Gislin; Khalsa, Sat Bir Singh; Haaz, Steffany; Bittner, Ava K

doi:10.4081/ams.2012.e5

Cited by 10 publications

(16 citation statements)

References 67 publications

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“…The trial protocol was written in a general format to address several research questions. An exploratory study [ 64 ] was conducted previously to determine feasibility of the AYT and details preliminary findings, which informed the current study. The study presented here evaluates the hypotheses that absolute COP and the relative contribution of remaining sensory inputs to postural stability increases after an 8-week AYT program.…”

Section: Methodsmentioning

confidence: 99%

“…The Ashtanga-based Yoga Therapy (AYT) is a highly modified Ashtanga yoga sequence developed specifically for the VI population by the author (PEJ)[ 63 ]. Ashtanga is a system of yoga taught by Sri K. Pattabi Jois in Mysore, India.…”

Section: Introductionmentioning

confidence: 99%

“…While the sequence of asanas remains the same each session, each asana is modified to suit the individual’s needs, and can be completed regardless of age, fitness, or level of experience. The feasibility of the AYT was evaluated in a previous pilot study and found to be suitable for a VI population since poses can be easily articulated verbally[ 64 ]. In the previous pilot study, three participants who completed the timed one-leg stand (OLS) developed an increase in static balance; however, changes in sensory contributions after AYT have yet to be evaluated.…”

Section: Introductionmentioning

confidence: 99%

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Ashtanga-Based Yoga Therapy Increases the Sensory Contribution to Postural Stability in Visually-Impaired Persons at Risk for Falls as Measured by the Wii Balance Board: A Pilot Randomized Controlled Trial

et al. 2015

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ObjectivePersons with visual impairment (VI) are at greater risk for falls due to irreparable damage to visual sensory input contributing to balance. Targeted training may significantly improve postural stability by strengthening the remaining sensory systems. Here, we evaluate the Ashtanga-based Yoga Therapy (AYT) program as a multi-sensory behavioral intervention to develop postural stability in VI.DesignA randomized, waitlist-controlled, single-blind clinical trialMethodsThe trial was conducted between October 2012 and December 2013. Twenty-one legally blind participants were randomized to an 8-week AYT program (n = 11, mean (SD) age = 55(17)) or waitlist control (n=10, mean (SD) age = 55(10)). AYT subjects convened for one group session at a local yoga studio with an instructor and two individual home-based practice sessions per week for a total of 8 weeks. Subjects completed outcome measures at baseline and post-8 weeks of AYT. The primary outcome, absolute Center of Pressure (COP), was derived from the Wii Balance Board (WBB), a standalone posturography device, in 4 sensory conditions: firm surface, eyes open (EO); firm surface, eyes closed (EC); foam surface, EO; and foam surface, EC. Stabilization Indices (SI) were computed from COP measures to determine the relative visual (SIfirm, SIfoam), somatosensory (SIEO, SIEC) and vestibular (SIV, i.e., FoamEC vs. FirmEO) contributions to balance. This study was not powered to detect between group differences, so significance of pre-post changes was assessed by paired samples t-tests within each group.ResultsGroups were equivalent at baseline (all p > 0.05). In the AYT group, absolute COP significantly increased in the FoamEO (t(8) = -3.66, p = 0.01) and FoamEC (t(8) = -3.90, p = 0.01) conditions. Relative somatosensory SIEO (t(8) = -2.42, p = 0.04) and SIEC (t(8) = -3.96, p = 0.01), and vestibular SIV (t(8) = -2.47, p = 0.04) contributions to balance increased significantly. As expected, no significant changes from EO to EC conditions were found indicating an absence of visual dependency in VI. No significant pre-post changes were observed in the control group (all p > 0.05).ConclusionsThese preliminary results establish the potential for AYT training to develop the remaining somatosensory and vestibular responses used to optimize postural stability in a VI population.Trial Registration www.ClinicalTrials.gov NCT01366677

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Ashtanga-Based Yoga Therapy Increases the Sensory Contribution to Postural Stability in Visually-Impaired Persons at Risk for Falls as Measured by the Wii Balance Board: A Pilot Randomized Controlled Trial

et al. 2015

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“…17 Yoga may also boost confidence and reduce anxiety. [18][19][20] To investigate these benefits, outcome measures are needed that probe objective and subjective qualities of balance if they are to be useful in future clinical settings. Despite yoga's popularity, very few studies have been conducted on the purported benefits of yoga for balance.…”

Section: Introductionmentioning

confidence: 99%

A Systematic Review of Yoga for Balance in a Healthy Population

Jeter

Nkodo

Moonaz

et al. 2014

The Journal of Alternative and Complementary Medicine

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Objective: A systematic review was done of the evidence on yoga for improving balance. Design: Relevant articles and reviews were identified in major databases (PubMed, MEDLINE Ò , IndMed, Web of Knowledge, EMBASE, EBSCO, Science Direct, and Google Scholar), and their reference lists searched. Key search words were yoga, balance, proprioception, falling, fear of falling, and falls. Included studies were peerreviewed articles published in English before June 2012, using healthy populations. All yoga styles and study designs were included. Two (2) raters individually rated study quality using the Downs & Black (DB) checklist. Final scores were achieved by consensus. Achievable scores ranged from 0 to 27. Effect size (ES) was calculated where possible. Results: Fifteen (15) of 152 studies (age range 10-93, n = 688) met the inclusion criteria: 5 randomized controlled trials (RCTs), 4 quasi-experimental, 2 cross-sectional, and 4 single-group designs. DB scores ranged from 10 to 24 (RCTs), 14-19 (quasi-experimental), 6-12 (cross-sectional), and 11-20 (single group). Studies varied by yoga style, frequency of practice, and duration. Eleven (11) studies found positive results ( p < 0.05) on at least one balance outcome. ES ranged from -0.765 to 2.71 (for 8 studies) and was not associated with DB score. Conclusions: Yoga may have a beneficial effect on balance, but variable study design and poor reporting quality obscure the results. Balance as an outcome is underutilized, and more probing measures are needed.

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“…Of these, three used the Otago exercise programme,30 33 34 three used general physical activity training programme aiming to improve balance29 35 36 and one used the Matter of Balance programme 37 38. The remaining interventions were based on other forms of physical activity including walking (n=1),31 tai chi (n=2),39 40 Alexander technique (n=1),25 26 Yoga (n=2),41 42 dance (n=1),43 aerobics (n=1)27 and core stability training (n=1) 28. One study used a falls prevention programme (FallProof) as a control, comparing to a dance-based intervention programme 32.…”

Section: Resultsmentioning

confidence: 99%

Physical activity interventions for adults who are visually impaired: a systematic review and meta-analysis

et al. 2020

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ObjectivesCompared with sighted individuals, people with visual impairment have a higher prevalence of chronic conditions and lower levels of physical activity. This review aims to systematically review physical activity interventions for those with a visual impairment and to assess their effectiveness.DesignA systematic review of articles reporting physical activity interventions in visually impaired individuals was conducted. Medline, EMBASE, The Cochrane Library, Cumulative Index to Nursing and Allied Health Literature, SPORTDiscus and the Physiotherapy Evidence Database were searched in August 2018. Meta-analyses were conducted on randomised controlled trials with the same outcome measure.SettingMost interventions were conducted in a group setting, with some including an at-home, self-directed component.ParticipantsFollowing identification of a recent systematic review of physical activity interventions in children, our review focused on adults aged 18 years and older with a visual impairment.Primary and secondary outcome measuresOutcomes included measures of balance, mobility, mental well-being (eg, quality of life), number of falls, muscle strength, flexibility and gait.ResultsEighteen papers from 17 studies met inclusion criteria. Physical activity components include falls prevention and/or balance-based activities, walking, tai chi, Alexander Technique, Yoga, dance, aerobics and core stability training. Significant results in favour of the intervention were reported most commonly in measures of functional capacity (9/17 studies) and in falls/balance-related outcomes (7/13 studies). The studies identified were generally small and diverse in study design, and risk of bias was high across several categories for most studies. Meta-analyses indicated non-significant effects of the included interventions on the Timed Up and Go, Chair Sit Test and Berg Balance Scale.ConclusionsPhysical activity interventions in individuals with visual impairment incorporating activities such as tai chi, Yoga and dance can have positive results, particularly in physical measures such as mobility and balance. However, when performing a meta-analysis of randomised controlled trials, the evidence for effectiveness is less clear. More studies with larger sample sizes, stronger designs and longer follow-up periods are needed.PROSPERO registration numberCRD42018103638.

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Yoga for persons with severe visual impairment: a feasibility study

Cited by 10 publications

References 67 publications

Ashtanga-Based Yoga Therapy Increases the Sensory Contribution to Postural Stability in Visually-Impaired Persons at Risk for Falls as Measured by the Wii Balance Board: A Pilot Randomized Controlled Trial

Ashtanga-Based Yoga Therapy Increases the Sensory Contribution to Postural Stability in Visually-Impaired Persons at Risk for Falls as Measured by the Wii Balance Board: A Pilot Randomized Controlled Trial

A Systematic Review of Yoga for Balance in a Healthy Population

Physical activity interventions for adults who are visually impaired: a systematic review and meta-analysis

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