Health Sciences Program, Santa Casa de São Paulo School of Medical Sciences, Doutor Cesário Motta Júnior st. #61, zip code 01221-020, São Paulo, SP, Brazil; PostureLab, 20 rue du rendez-vous, 75012, Paris, France.
Health Sciences Program, Santa Casa de São Paulo School of Medical Sciences, Doutor Cesário Motta Júnior st. #61, zip code 01221-020, São Paulo, SP, Brazil.
J Bodyw Mov Ther. 2023 Jul;35:298-304. doi: 10.1016/j.jbmt.2023.04.084. Epub 2023 May 4.
The loss of vision leads to behavioral and motor adaptations that do not necessarily translate to good functioning with regards to daily tasks.
To investigate differences in functional mobility in adults with total blindness, and analyze differences in spatiotemporal gait variables with and without the use of a cane, and wearing shoes or barefoot.
We used an inertial measurement unit to assess the spatiotemporal parameters of the gait and functional mobility in seven subjects with total blindness and four sighted participants during the timed up and go test (TUG) test performed under conditions: barefoot/shod; and with/without a cane (blind subjects).
Significant differences between groups were found in total TUG test time and in the sub-phases when the blind subjects executed the TUG barefoot and without a cane (p < .01). Other differences were found in trunk movement during sit-to-stand, and stand-to-sit where blind subjects when without cane and barefoot, they had a greater range of motion than sighted subjects (p < .01). Also, BMI has a moderate to strong influence in the execution of the TUG in blind subjects (p < .05) CONCLUSION: This study showed that, when using a gait-assistance device and wearing shoes, blind subjects have similar functional mobility and gait as sighted subjects, suggesting that an external haptic reference can compensate for the lack of vision. Knowledge of these differences can provide a better understanding of the adaptive behavior in this population, thereby assisting in minimizing the occurrence of trauma and falls.
视力丧失会导致行为和运动适应性改变，但这并不一定能转化为日常任务中的良好功能。
研究全盲成年人在功能性移动方面的差异，分析在使用手杖和不使用手杖、穿鞋和赤脚情况下的步态时空变量差异。
我们使用惯性测量单元评估 7 名全盲受试者和 4 名视力正常参与者在计时起立行走测试（TUG）中的步态和功能性移动的时空参数，测试条件为：赤脚/穿鞋；使用/不使用手杖（盲人群体）。
全盲受试者在 TUG 总测试时间和赤脚、不使用手杖执行 TUG 的子阶段中存在显著的组间差异（p<0.01）。在从坐到站和站到站的躯干运动中也发现了其他差异，当盲人群体不使用手杖和赤脚时，他们的运动范围比视力正常的群体更大（p<0.01）。此外，BMI 对盲人群体执行 TUG 有中度到强烈的影响（p<0.05）。
本研究表明，在使用步态辅助设备和穿鞋的情况下，盲人群体的功能性移动和步态与视力正常的群体相似，这表明外部触觉参考可以弥补视力的缺失。了解这些差异可以更好地理解该人群的适应行为，从而有助于最大限度地减少创伤和跌倒的发生。
