Some characteristics of wilderness backpackers.
D000328:Adult; D000367:Age Factors; D001294:Attitude to Health; D001827:Body Height; D001835:Body Weight; D002165:Camping; D006801:Humans; D007866:Leg / Q000502:physiology; D008297:Male; D009119:Muscle Contraction; D005082:Physical Exertion; D010809:Physical Fitness; D011998:Recreation; D012945:Social Values; D011795:Surveys and Questionnaires