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Table 2 Indicators of volume, rate, and breaks in sedentary time: 2005-2006 NHANES U.S. Adults

From: Accelerometer profiles of physical activity and inactivity in normal weight, overweight, and obese U.S. men and women

   

Obesity Category

   

Normal Weight N = 1016, Males = 461, Females = 555

Overweight N = 1195, Males = 725, Females = 470

Obese N = 1242, Males = 562, Females = 680

Accelerometer variable

    

Volume indicators**

  

Mean (95% CL)

Mean (95% CL)

Mean (95% CL)

 

Activity counts/day

All

245743

243106

201958

   

(236709, 254776)

(230874, 255340)

(192613, 211303)‡

  

Male

282211

265224

224755

   

(270112, 294311)

(251468, 278979)

(212759, 236751)‡

  

Female

222335

211356

183030

   

(210842, 233827)

(198266, 224446)

(168426, 197635)†

 

Uncensored steps/day

All

10379

10015

8893

   

(10032, 10727)

(9661, 10369)

(8606, 9180)‡

  

Male

11402

10741

9889

   

(10928, 11876)

(10330, 11153)

(9580, 10198)‡

  

Female

9723

8972

8066

   

(9319, 10127)

(8543, 9402)

(7684, 8448)‡

 

Censored steps/day

All

7190

6879

5784

   

(6856, 7524)

(6581, 7177)

(5520, 6047)‡

  

Male

8285

7643

6644

   

(7829, 8742)

(7301, 7984)

(6383, 6905)‡

  

Female

6486

5782

5069

   

(6091, 6882)

(5417, 6148)

(4703, 5435)‡

Rate indicators*

     
 

Activity counts/minute

All

343.9

332.3

287.5

   

(332.4, 355.4)

(323.3, 341.2)

(277.8, 297.2)‡

  

Male

395.3

363.5

314.9

   

(375.9, 414.8)

(351.2, 375.8)

(302.4, 327.4)‡

  

Female

310.9

287.4

264.8

   

(297.1, 324.6)

(274.9, 299.9)

(251.2, 278.3)‡

 

Uncensored steps/minute

All

12.3

11.8

10.6

   

(11.9, 12.6)

(11.4, 12.1)

(10.3, 10.9)‡

  

Male

13.3

12.5

11.7

   

(12.8, 13.8)

(12.1, 12.9)

(11.3, 12.0)‡

  

Female

11.6

10.7

9.8

   

(11.1, 12.1)

(10.3, 11.2)

(9.4, 10.2)‡

 

Censored steps/minute

All

8.5

8.1

6.9

   

(8.1, 8.9)

(7.8, 8.3)

(6.6, 7.2)‡

  

Male

9.7

8.9

7.8

   

(9.2, 10.2)

(8.5, 9.2)

(7.5, 8.2)‡

  

Female

7.7

6.9

6.1

   

(7.2, 8.2)

(6.5, 7.3)

(5.7, 6.6)‡

Break in sedentary time indicator*

     
 

Transitions/day

All

92.7

91.5

90.4

   

(90.9, 94.6)

(90.2, 92.8)

(89.3, 91.5)†

  

Male

90.9

90.2

88.4

   

(88.5, 93.4)

(88.2, 92.1)

(87.1, 89.8)†

  

Female

93.9

93.5

92.1

   

(92.0, 95.8)

(91.4, 95.5)

(90.4, 93.8)

  1. *averaged over number of days worn
  2. **10 or more consecutive minutes above the moderate intensity activity count threshold, with allowance for interruptions of 1 or 2 minutes below threshold. A bout was terminated by 3 minutes below threshold.
  3. ‡p < 0.0001, †p < 0.03 for linear trend