WalkingBabiesR Documentation

Effects of Exercise on First Walking


An experiment to see if special exercises help babies learn to walk sooner


A dataset with 24 observations on the following 2 variables.

Group Treatments: exercise control, final report, special exercises, or weekly report
Age Age (in months) when first walking


Scientists wondered if they could get babies to walk sooner by prescribing a set of special exercises. Their experimental design included four groups of babies and the following treatments:

Special exercises: Parents were shown the special exercises and encouraged to use them with their children. They were phoned weekly to check on their child's progress.

Exercise control: These parents were not shown the special exercises, but they were told to make sure their babies spent at least 15 minutes a day exercising.

Weekly report: Parents in this group were not given instructions about exercise. Like the parents in the treatment group, however, they received a phone call each week to check on progress.

Final report: These parents were not given weekly phone calls or instructions about exercises. They reported at the end of the study.


Zelazo, Phillip R., Nancy Ann Zelazo, and Sarah Kolb (1972), “Walking in the Newborn," Science, v. 176, pp. 314-315.