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Table 3 Mean values for accelerometer-determined variables in 2005–2006 NHANES adults (N = 3,725)

From: Adult self-reported and objectively monitored physical activity and sedentary behavior: NHANES 2005–2006

Variable

Mean (SE)

95% CI

Accelerometer wear time (hours/day)

14.0 (0.1)

13.9-14.2

Volume indicators

  

  Steps (steps/day)

  

   Uncensored steps/day

9,685 (107)

9,457-9,912

   Censored steps/day

6,549 (106)

6,324-6,774

  Activity counts (counts/day)

  

   Activity counts/day

269,107 (3,236)

262,209-276,006

Rate indicators

  

  Steps (steps/minute)

  

   Uncensored steps/minute

11.5 (0.1)

11.3-11.7

   Censored steps/minute

7.7 (0.1)

7.5-8.0

   Peak 1-minute cadence

100.8 (0.6)

99.6-102.0

   Peak 30-minute cadence

71.6 (0.7)

70.0-73.2

  Activity counts (counts/minute)

  

   Activity counts/minute

318.1 (3.0)

311.8-324.5

Time indicators

  

  Cadence (minutes/day)

  

   Non-movement

288.9 (2.2)

284.2-293.7

   Incidental movement

383.4 (2.1)

378.9-387.8

   Sporadic movement

102.1 (1.4)

99.0-105.2

   Purposeful steps

38.9 (0.7)

37.4-40.4

   Slow walking

15.5 (0.3)

14.8-16.3

   Medium walking

7.5 (0.3)

7.0-8.1

   Brisk walking

5.0 (0.3)

4.3-5.7

   Faster locomotion

1.5 (0.1)

1.3-1.8

   Any movement

554.0 (3.0)

547.7-560.3

   Non-incidental movement

170.6 (2.2)

165.8-175.4

  Activity intensity (minutes/day)

  

   Sedentary time

478.9 (2.6)

473.4-484.4

   Low intensity

200.0 (1.5)

196.8-203.1

   Light intensity

141.3 (1.8)

137.4-145.1

   Lifestyle intensity

87.8 (1.2)

85.1-90.4

   Moderate intensity

21.9 (0.6)

20.6-23.2

   Vigorous intensity

0.9 (0.1)

0.7-1.0

   Moderate-to-vigorous intensity

22.8 (0.7)

21.3-24.2

   Moderate-to-vigorous intensity in 10 minute bouts

6.1 (0.4)

5.3-6.9

Breaks in sedentary time

  

   Transitions/day

91.5 (0.4)

90.6-92.5

  1. Values weighted to provide nationally representative estimates.