Exercise guidance device

A motion guide device capable of reliably holding a rolling element with a holding portion is provided. A holding unit 4-1, 4-2, 4 that extends along a loaded rolling element rolling part 2a and prevents the rolling element 6 from dropping from the moving body 2 to the moving body 2 of the motion guide device. -3 is incorporated. An end plate 4a is formed integrally with the holding portions 4-1, 4-2, 4-3. For narrowing the widths of the openings 7 and 8 between the holding portions 4-1, 4-2 and 4-3 at the center in the length direction of the holding portions 4-1, 4-2 and 4-3. Drop prevention portions 21, 22, 23, 24, and 26 are provided. The drop-off prevention parts 21, 22, 23, 24, 26 rise so as to narrow the widths of the openings 7, 8, and the built-up parts 21, 22 integral with the holding parts 4-1, 4-2, 4-3. , 23, 24 and / or the central part of the holding parts 4-1, 4-2, 4-3 abut against the moving body 2 so as to bend toward the track member 1, and the holding parts 4-1, 4-2. 4-3 is a protrusion 26 integral with 4-3. [Selection] Figure 8