The above know friends, the elderly if something happens to you responsible?
This depends on the body of the elderly (60 is not old actually), if there is asthma or heart disease do not learn.
If there is no problem with the body, it is not recommended to jump for a long time, a dance length of up to 2 minutes on the good, because the ghost step is equivalent to a very strenuous running, the rhythm and then faster than the equivalent of a 100-meter run of the amount of exercise, very easy to gasp. The first thing you need to do is to get a good grip on the situation.