A witness may testify to a matter only if evidence is introduced sufficient to support a finding that the witness has personal knowledge of the matter. Evidence to prove personal knowledge may consist of the witnessâs own testimony. This rule does not apply to a witnessâs expert testimony under Rule 703.
Max. rise is now 7-3/4, and minimum run is 10, nose-to-nose, with at least a 3/4 bullnose required, so the step is actually about 11 long. For commercial or multi-family stairs, it is still 7 max and 11 min.ax. rise is now 7-3/4, and minimum run is 10, nose-to-nose, with at least a 3/4 bullnose required, so the step is actually about 11 long. For commercial or multi-family stairs, it is still 7 max and 11 min.
A person weighing 160 lbs. will burn 102 calories walking up and down stairs for 10 minutes. By running, the calories burned will increase to 191. For a person who weighs 200 lbs., walking up and down stairs burns 127 calories in 10 minutes, while running the stairs burns 239 calories. Benefits Stair climbing builds endurance and strengthens muscles.