In my opinion this sentence is totally ungrammatical and doesn't make much sense. It sounds like it could be a literal translation from another language into English perhaps?
"Physical exercises are widespread among people in order to be strong, healthy and in good shape". I would phrase this as: "It's common place for people who exercise regularly, to be strong, healthy and in good shape." OR, if you still want to use the adverb clause of purpose (in order to), you could say, "In order to be strong, healthy and in good shape, it's necessary to exercise regularly."
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