Table 2 Outcomes of the six-minute walk test

From: The six-minute walk distance is a marker of hemodynamic-related functional capacity in hypertension: a case–control study

 

Groups

 

Variables

Hypertension (n=41)

Healthy (n=41)

P-value (between groups)

Six-minute walk distance (m)

 Test no. 1

344.6±112.2

387.7±66.8

0.019a

 Test no. 2

331.1±115.0

376.1±68.4

0.022a

 Test nos. 2−1 (%)

−3.8±7.4

−3.1±2.9

NT

 P-value (within group)

0.005b

<0.001b

 

 Averaged 6MWD

338.8±112.8

388.0±66.7

0.010a

Predicted values of 6MWD (%)

 The Iwana’s equation

59.9±16.6

65.5±9.0

0.032a

 The Dourado’s equation

53.2±15.2

55.7±7.4

0.177a

 The Soares and Pereira’s equation

58.7±18.3

61.6±9.4

0.184a

Systolic blood pressure (mm Hg)

 Rest

156.4±17.7

130.0±6.0

NT

 First minute

174.6±18.1c

155.5±8.5c

NT

 Sixth minute

165.6±16.6c

135.3±5.9c

NT

 P-value (within group)

<0.001d

<0.001d

 

Diastolic blood pressure (mm Hg)

 Rest

91.3±8.0

84.7±4.5

NT

 First minute

103.5±10.1c

100.6±6.3c

NT

 Sixth minute

95.2±7.2c

89.7±4.6c

NT

 P-value (within group)

<0.001d

<0.001d

 

Heart rate (beats min−1) (%)

 Rest

90.0±6.1 (52±5)

86.7±4.1 (47±3)

NT

 First minute

109.1±13.7 (63±9)c

107.6±9.9 (58±6)c

NT

 Sixth minute

97.5±9.6 (56±6)c

91.9±4 (50±3)c

NT

 P-value (within group)

<0.001d

<0.001d

 
  1. Abbreviations: 6MWD, six-minute walk distance; NT, variables not tested owing to cells with zeroed values or data not available.
  2. aContinuous variables compared between groups by the t-test.
  3. bContinuous variables compared within groups by the paired t-test.
  4. cSignificantly higher than ‘Rest’.
  5. dContinuous variables compared within group by the one-way analysis of variance.
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