Rows: 124
Columns: 25
$ `Subj ID` <chr> "S0088", "S008…
$ Gender <chr> "M", "M", "F",…
$ Age <dbl> 63, 63, 78, 78…
$ Visit <chr> "V1", "V3", "V…
$ Group <chr> "Tai-Chi", "Ta…
$ Random <chr> "Random", "Ran…
$ Height <dbl> 65.0, 65.0, 59…
$ Activity <dbl> 3, 3, 1, 1, 3,…
$ Education <dbl> 18, 18, 18, 18…
$ BMI <dbl> 26.28970, 26.2…
$ `Hallway length (Long, Short)` <chr> "L", "L", "L",…
$ TrailA <dbl> 28.30, 26.20, …
$ TrailB <dbl> 71.10, 38.90, …
$ Trail_BARatio <dbl> 2.512367, 1.48…
$ Animals_C <dbl> 21, 19, 19, 15…
$ Supermarket_C <dbl> 20, 26, 18, 14…
$ Category_T <dbl> 41, 45, 37, 29…
$ laps <dbl> 7, 5, 6, 6, 5,…
$ `Enter the distance walked on the last incomplete lap:` <dbl> 82.63, 39.10, …
$ `Distance walked:` <dbl> 754.28, 518.85…
$ Time <dbl> NA, 598.6833, …
$ ...22 <lgl> NA, NA, NA, NA…
$ ...23 <lgl> NA, NA, NA, NA…
$ ...24 <lgl> NA, NA, NA, NA…
$ `Describe activity level for the previous month` <chr> "3. 1+ hr per …