James Neiss/staff photographerNiagara Falls, NY - Construction of the Niagara Elders Exercise Loop has begun outside the John Duke Senior Center and Hyde Park, funded by a grant from New York State and built by city trades. The 1 mile loop features a full body workout at 4 stations built for seniors of varying physical abilities, including wheelchair access. The loop will debut during Kneel Walk Day on June 15, at the senior center.