Findings from this analysis suggest that some racial/ethnic groups have a significantly lower prevalence of strength training than others. Strength-training prevalence was consistently lower among Hispanic respondents than among non-Hispanic white respondents during 1998-2004. However, all subgroups are at risk for not meeting national health objectives for 2010. Identification of barriers to strength training among all racial/ethnic groups, especially Hispanics, can guide the design of culturally appropriate interventions. One of the most important barriers for many adults, regardless of racial/ethnic subgroup, is initiating a strength-training program. Including another person in the program, such as a coworker, spouse, neighbor, or friend, can provide encouragement and motivation.