Changes in the percentage of older adults meeting physical-activity guidelines during the COVID-19 pandemic. 1 Significant difference between before the COVID-19 pandemic and first three months of the COVID-19 pandemic, p < 0.001; 2 Significant difference between first three months of the COVID-19 pandemic and one year into COVID-19 pandemic, p < 0.001. There were no significant differences in meeting the aerobic, muscle-strengthening, or both physical-activity guidelines before the pandemic and one year into the pandemic. Sample sizes are 336, 367, and 331 for aerobic, muscle-strengthening and both physical-activity guidelines, respectively.