Maintained Physical Activity Induced Changes in Delay Discounting.

Researchers ran a seven-week program where adults tracked their own effort-paced exercise. Each person counted laps and wrote down how hard they felt they worked.

They used a multiple-baseline design across sixteen participants. No diagnosis was listed, so the sample appears to be typical adults.

Thirteen of the sixteen people kept their new, lower delay-discounting scores after the program ended. Group-level gains were statistically significant.

In plain words, the group became better at waiting for bigger rewards, and the change stuck around.

Van et al. (2026) reviewed ten precision-teaching studies that also used self-monitoring. Their paper includes any study where people count and chart a private event, so the lap-counting method here fits right in.

Higgins et al. (1992) taught adults to watch heart-rate numbers on a screen. Both studies show that when people track a body signal, the benefit lasts weeks and transfers to new tasks.

Davis et al. (1976) and Connis (1979) used self-recording with preschoolers and with adults who have ID. Each saw large, durable gains, proving the tactic works across ages and abilities.

If you want clients to wait for larger, later rewards, hand them a simple lap counter and a pencil. Seven weeks of effort-paced walking plus daily self-counts flattened the discounting curve for most adults. The tool is cheap, the data are visible, and the skill keeps working after you fade out.