Department of Electrical and Computer Engineering, Swanson School of Engineering, University of Pittsburgh, 3700 O'Hara Street, Pittsburgh, PA, USA.
Comput Biol Med. 2013 Oct;43(10):1497-501. doi: 10.1016/j.compbiomed.2013.07.019. Epub 2013 Jul 23.
This paper presents a two-part study with walking conditions involving music and television (TV) to investigate their effects on human gait. In the first part, we observed seventeen able-bodied adults as they participated in three 15-minute walking trials: (1) without music, (2) with music and (3) without music again. In the second part, we observed fifteen able-bodied adults as they walked on a treadmill for 15 min while watching (1) TV with sound (2) TV without sound and (3) TV with subtitles but no sound. Gait timing was recorded via bilateral heel sensors and center-of-mass accelerations were measured by tri-axial accelerometers. Measures of statistical persistence, dynamic stability and gait variability were calculated. Our results showed that none of the considered gait measures were statistically different when comparing music with no-music trials. Therefore, walking to music did not appear to affect intrinsic walking dynamics in the able-bodied adult population. However, stride interval variability and stride interval dynamics were significantly greater in the TV with sound walking condition when compared to the TV with subtitles condition. Treadmill walking while watching TV with subtitles alters intrinsic gait dynamics but potentially offers greater gait stability.
本文提出了一项包含音乐和电视（TV）的行走条件的两部分研究，旨在探讨它们对人类步态的影响。在第一部分中，我们观察了 17 名健康成年人在三种 15 分钟的行走试验中的表现：（1）无音乐，（2）有音乐，（3）再次无音乐。在第二部分中，我们观察了 15 名健康成年人在跑步机上行走 15 分钟的情况，他们分别观看了（1）有声音的电视，（2）无声的电视和（3）有字幕但无声的电视。步态计时通过双侧脚跟传感器记录，质心加速度通过三轴加速度计测量。计算了统计持久性、动态稳定性和步态可变性的度量。我们的结果表明，在比较音乐和无音乐试验时，没有任何考虑的步态测量在统计学上有差异。因此，在健康成年人中，听音乐似乎不会影响内在的行走动力学。然而，与字幕条件相比，在有声音的电视行走条件下，步幅间隔变异性和步幅间隔动力学显著更大。在观看有字幕的电视时在跑步机上行走会改变内在的步态动力学，但可能提供更大的步态稳定性。
