The American Thoracic Society Suggests Not to Spend Six Minutes Strolling With the Customer (6Mwt). This Proposal Raises Safety Issues For Those Who Are More Likely to Fall. the Impacts of the 6Mwt Surveillance Have Yet Not Been Examined. This Research Aimed to Establish Whether the Control of the 6Mwt Influenced Gear Speed and Distance. This Investigation Was Carried Out In Two Successive 6Mwt Trials, One of Whom Gave Healthy Younger Students (N = 103, 24.2 ± 3.4 Years) and Older Ones (N = 102, 71.1 ± 11.3 Years). Participants Were Randomised to a First Guarded Rather Than Second Guarded. Intraclass Correlation Coefficients (Iccs), Bland-Altman Plots and Data Were Evaluated Using a One-Sample Test. Signified a Reduction In Guarding Distance (P< 0,001) and Gait Velocity (Mean Difference = 0,04 ± 0,11 Msec, 95 Percent of Loa = 0,36 M and −0,18 Msec) (Mean Difference = 13,5 ± 40,3 M, 95 Percent of Loa = 65,5 M and −92,4M). When Separated Between an Older and Younger Group, Guarding Lowered Distance and Speed, But Had a Greater Influence on the Younger Groups. Watchdogs Altered the Distance During the 6Mwt. the Results Indicate That Measurements Are Not Interchangeable Under the 2 Walking Circumstances.