Université Côte d'Azur, LAMHESS, EUR HEALTHY, 06205, Nice, France; Université Côte d'Azur, CHU de Nice, Cimiez, Plateforme fragilité, 06000, Nice, France; Ted Orthopedics, 37 rue Guibal, 13003, Marseille, France.
Université Côte d'Azur, LAMHESS, EUR HEALTHY, 06205, Nice, France.
Gait Posture. 2022 Feb;92:8-14. doi: 10.1016/j.gaitpost.2021.11.015. Epub 2021 Nov 14.
The 6-min walk test (6MWT) is a useful tool for clinicians and researchers to estimate gait performance and fatigue affecting functional mobility. A modified 6MWT administered on a treadmill (TM) can be an efficient, space-saving alternative to perform the 6MWT. The aim of this study was to investigate if a 6MWT on a self-paced (SP) TM produced similar results compared to an overground (OG) 6MWT among healthy participants with the hypothesis that users would demonstrate similar gait parameters. The second aim was to assess the reliability of SP TM sessions with the hypothesis that gait parameters would be reliable. Twelve healthy young adults performed one OG 6MWT and two SP TM 6MWTs, with the TM tests performed on two different testing days. The OG 6MWTs were conducted along a 20 m corridor with a portable optometric system. The SP TM 6MWTs were performed using a dual-belt instrumented TM with speed controlled by feedback from a LIDAR sensor. In the OG condition, participants walked 664.8 m ± 48.9 m when the standard method was used to calculate distance and 721.3 m ± 56.2 m with an average-speed-based estimation of distance, which corrects for U-turns. For the SP TM 6MWT, they covered 729.4 m ± 45.8 m in the first session and 727.4 m ± 56.0 m in the second session. Gait parameters showed good to excellent within- and between-day reliability on the adaptive TM. Gait parameters were similar between modalities. A significant difference in the 6MWT distance was found between modalities. This is attributable to the U-turns, because a comparison between TM 6MWT distance and the average-speed-based estimation of the distance for the OG modality showed no significant difference. However, this system produced similar spatiotemporal gait parameters among participants compared to OG.
6 分钟步行测试（6MWT）是临床医生和研究人员评估步态表现和影响功能移动性的疲劳的有用工具。在跑步机（TM）上进行的改良 6MWT 可以作为一种高效、节省空间的替代方法来进行 6MWT。本研究的目的是调查在自我调节（SP）TM 上进行的 6MWT 是否与健康参与者的 OG 6MWT 产生相似的结果，假设使用者将表现出相似的步态参数。第二个目的是评估 SP TM 会话的可靠性，假设步态参数将是可靠的。12 名健康年轻成年人进行了一次 OG 6MWT 和两次 SP TM 6MWT，TM 测试在两天进行。OG 6MWT 沿着 20 米的走廊进行，使用便携式视光系统。SP TM 6MWT 使用带有速度控制的双带仪器 TM 进行，速度由激光雷达传感器的反馈控制。在 OG 条件下，使用标准方法计算距离时，参与者步行 664.8 m ± 48.9 m，使用平均速度的距离估计时，步行 721.3 m ± 56.2 m，这可以纠正转弯。对于 SP TM 6MWT，他们在第一次会议中覆盖了 729.4 m ± 45.8 m，在第二次会议中覆盖了 727.4 m ± 56.0 m。在自适应 TM 上，步态参数显示出良好到极好的日内和日间可靠性。两种模式下的步态参数相似。两种模式之间的 6MWT 距离存在显著差异。这归因于转弯，因为 TM 6MWT 距离与 OG 模式的平均速度估计的距离之间的比较没有显示出显著差异。然而，与 OG 相比，该系统在参与者中产生了相似的时空步态参数。
