1) Ferrucci L, Cooper R, Shardell M, et al. Age-related change in mobility:perspectives from life course epidemiology and geroscience. J Gerontol A Biol Sci Med Sci 2016;71(9):1184-94.
2) Yamada K, Ito YM, Akagi M, et al. Reference values for the locomotive syndrome risk test quantifying mobility of 8681 adults aged 20-89 years:a cross-sectional nationwide study in Japan. J Orthop Sci 2020;25(6):1084-92.
3) 村永信吾,平野清孝.2ステップテストを用いた簡便な歩行能力推定法の開発.昭和医会誌2013;63(3):301-8.
4) Bohannon RW. Comfortable and maximum walking speed of adults aged 20-79 years:reference values and determinants. Age Ageing 1997;26(1):15-9.
5) Middleton A, Fulk GD, Herter TM, et al. Self-selected and maximal walking speeds provide greater insight into fall status than walking speed reserve among community-dwelling older adults. Am J Phys Med Rehabil 2016;95(7):475-82.
6) Dumurgier J, Elbaz A, Ducimetière P, et al. Slow walking speed and cardiovascular death in well functioning older adults:prospective cohort study. BMJ 2009;339:b4460.
7) 村永信吾.立ち上がり動作を用いた下肢筋力評価とその臨床応用.昭和医会誌2001;61(3):362-7.
8) Baldwin JN, McKay MJ, Hiller CE, et al. Relationship between physical performance and self-reported function in healthy individuals across the lifespan. Musculoskelet Sci Pract 2017;30:10-7.