The waiver requires that all members are in good health, medically able and properly trained to participate in any specific activity.  The language of the waiver is general and without being excessively long it cannot list all of the possible situations.  One should understand from the waiver that it applies to a member’s particular personal situation.  The member will know whether they are in good health, medically able and properly trained for any particular activity.  With specific regard to “training”, the level of training for different activities will vary.  Coming for a group run does not require that a member complete a formal training program.  It does mean that they should be “trained” in pedestrian activities which, we expect, is common to all people.  On the other hand, if the Club were to put on a 10k road race then we would expect that the participants would have “trained” for the event by doing at least a few practice/training runs beforehand.  Again, formal training would not be required.  If the Club were to conduct a couch-to-5k program then one would imagine that the appropriate prior training level to have achieved is quite low.  Some walking would satisfy that.  The bottom line is that formal training is not required.  “Training’ here means that members have prepared is some appropriate fashion for the activity they are about to undertake.