Table 1. ^† Selected Studies of MPT in Healthy Females and Males and Young and Older Adults.

Age Group	Sex	M	SD	Range
Older Adults [5]	M (65-75 yrs)	14.6	5.9	-
	F (66-93 yrs)	14.6	5.8	-
Older Adults [12]	M (68-89 yrs)	18.1	6.6	10.0-37.2
	F (66-93 yrs)	14.2	5.6	7.0-24.8
Older Adults [13]	M (85-92 yrs)	13.0	-	7.0-12.0
	F (85-96 yrs)	10.0	-	6.0-18.0
Young Adults [5]	M & F	18.2	4.3	-
Young Adults [20]	M	22.6	8.1	9.3-43.3
	F	15.2	5.0	6.2-28.4
Young Adults [21]	M	34.6	-	15.0-62.3*
	F	25.7	-	14.3-40.4*

^*The ranges in this study are only from the “Critical Region,” that is, only the values that fell within the normal population defined by the authors (at a 5% level of significance).

^†This table presents selected studies of MPT previously characterized by Kent et al (6) in a review article.