. Author manuscript; available in PMC: 2015 Sep 1.

Published in final edited form as: Arch Phys Med Rehabil. 2014 Apr 26;95(9):1714–1718. doi: 10.1016/j.apmr.2014.04.007

Table 1.

Participant demographics and performance on graded exercise tests.

	Nondemented	Cognitive Impairment	p value
	(n= 340)	(n=235)
Age (y)	74.0 (6.2)	75.0 (6.7)	0.09
CDR Global	0.0 (0.0)	0.7 (0.3)
CDR Sum of Boxes	0.0 (0.1)	3.5 (2.4)
Sex (% female)	60.6	49.8	0.01
Maximal HR (bpm)	148.0 (14.7)	138.5 (19.5)	<0.001
Peak Rating of Perceived Exertion (RPE)	17.2 (1.9)	16.9 (2.7)	0.06
Exercise Duration (s)	645.6 (195.0)	570.5 (191.0)	<0.001
Peak oxygen consumption (mlkg⁻¹min⁻¹)	21.9 (5.2)	20.2 (4.4)	<0.001
RER at peak oxygen consumption	1.10 (0.1)	1.09 (0.1)	0.20
BMI (kg*m⁻²)	27.0 (4.3)	26.6 (4.6)	0.32
# achieving 3 of 4 criteria	n=219	n= 122	<0.01
Any Early Termination Due to Adverse Event	n= 7	n= 13	0.03

Values are means (standard deviation) unless otherwise noted. Abbreviations: CDR = Clinical Dementia Rating, bpm = beats per minute, s = seconds