Может ли острая фотобиомодуляция улучшить баланс и когнитивные функции у лиц с атаксией: пилотное рандомизированное контролируемое исследование плацебо по оценке осуществимости.

Sham photobiomodulation. The sham device will follow the same protocol but without active light emission.

The sham device will follow the same protocol but without active light emission.

Acute photobiomodulation Twenty-four-minute photobiomodulation stimulation (twelve minutes at 670 nm followed by twelve minutes at 810 nm).

Photobiomodulation

The n-1-back (deviation) task is a working memory test where participants respond when the current stimulus differs from the one presented n-1 trials earlier.

The n-1-back (deviation) task is a working memory test where participants respond when the current stimulus differs from the one presented n-1 trials earlier.

The n-2-back (deviation) task is a working memory test where participants respond when the current stimulus differs from the one presented n-2 trials earlier.

The n-2-back (deviation) task is a working memory test where participants respond when the current stimulus differs from the one presented n-2 trials earlier.

The n-1-back (post-deviation) task assesses working memory performance on the trial immediately following a deviation from the stimulus presented n-1 trials earlier.

The n-1-back (post-deviation) task assesses working memory performance on the trial immediately following a deviation from the stimulus presented n-1 trials earlier.

The n-2-back (post-deviation) task assesses working memory performance on the trial immediately following a deviation from the stimulus presented n-2 trials earlier.

The n-2-back (post-deviation) task assesses working memory performance on the trial immediately following a deviation from the stimulus presented n-2 trials earlier.

The n-1-back (post-target) task assesses working memory performance on the trial immediately following a target that matched the stimulus presented n-1 trials earlier.

The n-1-back (post-target) task assesses working memory performance on the trial immediately following a target that matched the stimulus presented n-1 trials earlier.

The n-2-back (post-target) task assesses working memory performance on the trial immediately following a target that matched the stimulus presented n-2 trials earlier.

The n-2-back (post-target) task assesses working memory performance on the trial immediately following a target that matched the stimulus presented n-2 trials earlier.

The n-1-back (load) condition measures working memory performance under the cognitive demand of tracking stimuli 1 trial back.

The n-1-back (load) condition measures working memory performance under the cognitive demand of tracking stimuli 1 trial back.

The n-2-back (post-load) condition assesses working memory performance on the trial immediately following a high cognitive load in the n-2-back task.

The n-2-back (post-load) condition assesses working memory performance on the trial immediately following a high cognitive load in the n-2-back task.

The Coop-Wonka chart is a six item questionnaire with a 1-5 scoring system for each thus the chart has a maximum score of 30 which indicates the lowest possible psychological Wellbeing.

The Coop-Wonka chart is a six item questionnaire with a 1-5 scoring system for each thus the chart has a maximum score of 30 which indicates the lowest possible psychological Wellbeing.

Psychological wellbeing - the Beck Depression Inventory is a 21 questionnaire with questions that range in scoring from 0-3, thus the maximum score is 63 which is the highest depression score possible.

Psychological wellbeing - the Beck Depression Inventory is a 21 questionnaire with questions that range in scoring from 0-3, thus the maximum score is 63 which is the highest depression score possible.

The Pittsburgh Sleep Quality index, is a questionnaire that consists of 19 self-rated questions, grouped into 7 components. Each component is scored separately, weighted equally on a 0 - 3 scale and the scores of the 7 components are then added to give a global score, which has a range of 0 - 21 with higher scores indicating worse sleep quality.

The Pittsburgh Sleep Quality index, is a questionnaire that consists of 19 self-rated questions, grouped into 7 components. Each component is scored separately, weighted equally on a 0 - 3 scale and the scores of the 7 components are then added to give a global score, which has a range of 0 - 21 with higher scores indicating worse sleep quality.

The state trait anxiety inventory is a 40 item questionnaire with each question having a 1-4 score system, thus the maximum score is 80 which indicates the highest level of anxiety.

The state trait anxiety inventory is a 40 item questionnaire with each question having a 1-4 score system, thus the maximum score is 80 which indicates the highest level of anxiety.

The Insomnia Severity Index is a brief instrument designed to assess the severity of both nighttime and daytime components of insomnia. The Insomnia Severity Index is a 7-item self-report questionnaire yielding a total score ranging from 0 to 28.

The Insomnia Severity Index is a brief instrument designed to assess the severity of both nighttime and daytime components of insomnia. The Insomnia Severity Index is a 7-item self-report questionnaire yielding a total score ranging from 0 to 28.

The Epworth Sleepiness Scale is a self-administered questionnaire with 8 questions. Respondents are asked to rate, on a 4-point scale (0-3) with a maximum score of 24.

The Epworth Sleepiness Scale is a self-administered questionnaire with 8 questions. Respondents are asked to rate, on a 4-point scale (0-3) with a maximum score of 24.

The Everyday Memory Errors Questionnaire is a brief self-report instrument designed to assess the frequency of memory lapses in daily life. It consists of multiple items that yield a total score reflecting the extent of everyday memory difficulties.

The Everyday Memory Errors Questionnaire is a brief self-report instrument designed to assess the frequency of memory lapses in daily life. It consists of multiple items that yield a total score reflecting the extent of everyday memory difficulties.

The Falls Efficacy Scale is a brief self-report instrument designed to assess confidence in performing daily activities without falling. It consists of multiple items that yield a total score reflecting fear of falling and perceived fall-related self-efficacy.

The Falls Efficacy Scale is a brief self-report instrument designed to assess confidence in performing daily activities without falling. It consists of multiple items that yield a total score reflecting fear of falling and perceived fall-related self-efficacy.

The maximum anterior-posterior displacement of the centre of pressure during a two-minute balance task.

The maximum anterior-posterior displacement of the centre of pressure during a two-minute balance task.

The maximum medio-lateral displacement of the centre of pressure during a two-minute balance task.

The maximum medio-lateral displacement of the centre of pressure during a two-minute balance task.