Table 3:

Activity Participation by “Sport”

Activity	Number of Girls
Baseball/Softball	5
Basketball	5
Cheerleading	4
Cross-Country Running	6
Dance	12
Downhill Skiing	5
Gymnastics	37
Horse riding	1
Ice Skating	1
Lacrosse	5
Martial Arts	6
Snowboarding	1
Soccer	20
Swimming: AQUATIC	7
Tennis	1
Trampoline	2

Note: Girls often participate in more than one activity, thus activity participation is not mutually exclusive. For example, Girl #3 participated in gymnastics, soccer, tennis, dance and basketball during the year prior to the focal DXA scan.

Furthermore, although the majority of girls (n =37) participated in gymnastics the year prior to the DXA scan, most of them did not achieve an annual mean training level of greater than 6 hours per week for the year prior to the focal DXA scan (the threshold for “gymnast status” in our prior palat lumbar spine DXA analysis).