J Orthop Sports Phys Ther. 1990;12(4):139-46. doi: 10.2519/jospt.1990.12.4.139.
Vertebral column height decreases throughout the course of the day. This decrease is the result of a loss of fluid from the intervertebral discs due to compressive loading. When the load changes during the day, as a result of varying physical activities, the rate of disc shrinkage changes in relation to those activities. The purpose of this study was to determine if there is a correlation between long distance running and an increase in the loss of vertebral column height. Thirty elite male runners, ages 17 to 29, participated in this study. Subjects' vertebral column heights were measured in the morning upon waking, in the afternoon prior to running 9 miles, and then immediately following the run. Paired t-tests revealed: 1) that the vertebral column height was significantly less following the run, and 2) that a significantly greater amount of height was lost during 1 hour of running than during 7.5 hours of relatively static activities. J Orthop Sports Phys Ther 1990;12(4):139-146.
脊柱高度在一天中会逐渐降低。这种降低是由于椎间盘内的液体因受压而流失所致。当一天中由于不同的体力活动导致负荷发生变化时，椎间盘的收缩率会相应地发生变化。本研究旨在确定长跑是否与脊柱高度丧失增加之间存在相关性。30 名年龄在 17 至 29 岁之间的男性精英跑者参加了这项研究。在研究中，参与者的脊柱高度在早上醒来时、下午跑步前 9 英里时以及跑步后立即进行了测量。配对 t 检验显示：1）跑步后脊柱高度明显降低，2）在 1 小时的跑步过程中，损失的高度明显高于 7.5 小时的相对静态活动。J Orthop Sports Phys Ther 1990;12(4):139-146.
