I believe that the first quote by Dr. Karen Turner is saying that people need to be more productive and energetic. These kinds of attitudes will keep people involved in life. If we do not interact with others, we will become anti social. This is especially true for elderly people who are often very lonely and isolated.
The second quote by Wes Fessler simply means that the elderly must have activities available that cater to their needs. If we do not cater to them then they will not participate and this can be very harmful to their personal well being, both emotionally and physically. I think that Fessler believes in this very passionately because at one time in his life a ladder fell out from under him and left him disabled for a period of time. He knows first hand how important it is to remain involved in activities that you not only enjoy but activities that you are physically able to participate in as well.