Sedentary Workers
n 4% increase in job-site computer usage (US
Census Bureau, 2000).
n 91.7% males & 76.8% females aged 25-54
were part of U.S. labor force in 1999 (Holm,
2000).
n 93% non-agricultural jobs (service & goods)
n Ratio of service-producing : goods-
producing; 2:1 in 1970 vs. 4:1 in 1999 (ibid).
n 35 hours/week vs. 39.5 hours/week (ibid).