Strubhar Andrew J, Peterson Melissa L, Aschwege Jessica, Ganske Joey, Kelley Jessica, Schulte Hope
Department of Physical Therapy and Health Science, Bradley University, 1501 W. Bradley Ave., Peoria, IL 61625, United States.
Department of Physical Therapy and Health Science, Bradley University, 1501 W. Bradley Ave., Peoria, IL 61625, United States.
Gait Posture. 2015 Oct;42(4):580-3. doi: 10.1016/j.gaitpost.2015.09.007. Epub 2015 Sep 16.
The aim of this study was to determine the effects text messaging has on gait characteristics and reactive balance. Thirty-two subjects were recruited. Data was collected on texting ability in standing, while walking and while in perturbed stance. Data on gait parameters using the GAITRiteTM were collected while walking normally and while walking and texting. Data on reactive balance in perturbed stance (DMA score) using the PROPRIO 5000™ was collected while standing and while standing and texting. Repeated measures statistics were applied. No practical difference in texting ability was found between the three conditions of standing, walking and perturbed stance. A significant difference was found between mean gait characteristics of velocity, cadence, double limb support and mean step length during normal walking and walking while texting (p<.05). No statistical significance was shown between mean heel to heel support. A significant difference was found between reactive balance ability (mean DMA score) in perturbed stance and perturbed stance while texting (p<.05). The data imply that gait and balance are negatively impacted while texting and that subjects will maintain their baseline texting speed and accuracy at the expense of gait speed and impaired balance.
本研究的目的是确定短信对步态特征和反应性平衡的影响。招募了32名受试者。收集了他们在站立、行走以及姿势受干扰时的短信发送能力数据。使用GAITRiteTM收集正常行走以及边行走边发短信时的步态参数数据。使用PROPRIO 5000™收集站立以及边站立边发短信时姿势受干扰情况下的反应性平衡数据（动态姿势图谱评分）。应用重复测量统计方法。在站立、行走和姿势受干扰这三种情况下，未发现短信发送能力存在实际差异。正常行走和边行走边发短信时，在速度、步频、双腿支撑时间和平均步长等平均步态特征方面存在显著差异（p<0.05）。平均足跟到足跟支撑时间之间未显示出统计学显著性。姿势受干扰时和边发短信边姿势受干扰时的反应性平衡能力（平均动态姿势图谱评分）存在显著差异（p<0.05）。数据表明，发短信时步态和平衡会受到负面影响，并且受试者会以步态速度和平衡受损为代价来维持其基线短信发送速度和准确性。
