Table 14. Selected characteristics of the exercised physically active women and control women (Study 1). Values are means (±SD).

Charasteristic

Physically active 
women(n = 42)

Control women
(n = 22)

P value

Age (yr)

73.9 (4.5)

74.3 (2.7)

.681

Height (m)

1.58 (.05)

1.58 (.05)

.579

Weight (kg)

59.7 (8.8)

73.0 (11.5)

< .001

Body fat (%)

25.1 (6.5)

34.2 (6.2)

< .001

Lean body mass (kg)

44.4 (4.3)

47.5 (4.9)

.012

Blood hemoglobin (g·l-1 )

144  (9)

145 (8)

.524

SBP at rest (mmHg)

178 (25)

181 (21)

.504

DBP at rest (mmHg)

87 (11)

88 (11)

.737

Peak power (W)

95.6 (36.1)

68.2 (23.1)

.002

Peak power (W·kg -1)

1.61 (.62)

0.98 (.43)

< .001

Peak oxygen uptake (l·min-1) a

1.37 (.43)

1.15 (.19)

.023

Peak oxygen uptake (ml·kg·min-1) a

22.6 + 6.7

15.1 (3.0)

< .001

Peak RER a

0.91 (.09)

0.85 (.13)

.077

Physical activity (km·year-1) b
823 (705)
310 (285)
< .001

a n = 35 for physically active women, n = 13 for control women. b A weighted sum index was computed from self-reported annual walking (weighted by 0.6), running (1.0), cross-country skiing (0.7), swimming (4.0), cycling (0.3) on the basis of their relative energy expenditure and the average distance traveled within the time unit. Abbreviations: SBP= systolic blood pressure, DBP= diastolic blood pressure, RER= respiratory exchange ratio