Another paired entry in the category of “Is a thing good or bad? It Depends”. In this case the thing is people standing on one leg. Here are two studies:
“Dynamic flamingo therapy” [Article in Japanese], Sakamoto K., Clinical Calcium. 2008 Nov;18(11):1594-9. (Thanks to investigator Genevieve Jules for bringing this to our attention.) The authors is at Showa University School of Medicine.
“A long follow up study of one minute unipedal standing therapy 3 times in a day to prevent femoral neck osteoporosis that have started from 1993 was reported. The registration from July 1993 to March 2004 were 86 cases which measured the femoral neck bone mineral density according to dual energy x-ray absorptiometry in a follow-up period…. According to a randomized controlled study of unipedal standing balance therapy to clinically defined high-risk elderly individuals a therapy group reduced fall times by a significant difference than non-therapy group. We conclude that unipedal standing therapy is efficacious against femoral neck osteoporosis and fractures.”
“Treatment of abnormal single-leg stance (flamingo) radiographs. Opinion: nonoperative treatment; opinion: operative fixation, anterior plating,” Sanzone AG, Heiney JP, Marsh JL, Olson SA., J Orthop Trauma. 2011 Jan;25(1):e9-11. The authors are at Trauma and Fracture Specialists Research and Education Foundation, San Diego, CA, USA.
BONUS: Flamingos standing like humans who stand like flamingos: