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Table 1 Excess MET-hours a for activity at follow-up in relation to baseline frequency of activity

From: Reported frequency of physical activity in a large epidemiological study: relationship to specific activities and repeatability over time

   Hours and excess MET-hours a per week spent doing various
activities reported ~3 years after baseline
   Strenuous activity b Aggregate of various activities c
Frequency of strenuous physical
activity reported at baseline
Number
of women
hours
mean
MET-hours a
mean (SD)
hours
mean
MET-hours a
mean (SD)
Never 261,857 0.8 5.6 (21.3) 21.7 52.4 (39.0)
< Once per week 79,962 1.1 7.8 (20.2) 22.7 57.3 (38.0)
Once per week 115,573 1.5 10.7 (20.5) 23.4 61.5 (38.5)
2 to 3 times per week 96,415 2.4 16.5 (25.0) 24.8 69.5 (42.5)
4 to 6 times per week 19,394 3.4 23.9 (34.1) 27.2 81.3 (50.6)
Daily 16,431 3.5 24.3 (50.8) 31.1 90.6 (69.1)
Correlation coefficient    0.37 0.12 0.22
P for trend    < 0.0001 < 0.0001 < 0.0001
Frequency of any physical
activity reported at baseline
     
Never 107,346 0.8 5.8 (24.5) 21.0 50.3 (41.4)
< Once per week 49,073 0.9 6.6 (21.2) 20.6 50.9 (37.8)
Once per week 92,317 1.2 8.1 (19.5) 21.3 53.9 (37.0)
2 to 3 times per week 149,138 1.6 11.4 (20.6) 22.7 60.0 (37.5)
4 to 6 times per week 57,585 2.0 13.8 (24.0) 24.2 66.0 (39.6)
Daily 134,437 1.7 12.0 (30.0) 27.0 71.2 (49.0)
Correlation coefficient    0.17 0.17 0.22
P for trend    < 0.0001 < 0.0001 < 0.0001
  1. a Excess MET-hours: metabolic equivalent hours of energy expenditure in excess of basal metabolic rate; see Methods for details.
  2. b Reported hours and estimated excess MET-hours a spent doing exercise causing sweating or a fast heartbeat
  3. c Reported hours and estimated excess MET-hours a spent doing walking, cycling, gardening, housework, and exercise causing sweating or a fast heartbeat