Redraw or Reset table view header and/or footer

Question

Is there a way other than [tableView reloadData] to refresh table header and/or footer? With respect to both:

- (UIView *)tableView:(UITableView *)tableView viewForFooterInSection:(NSInteger)section;
OR
- (NSString *)tableView:(UITableView *)tableView titleForFooterInSection:(NSInteger)section;

For example, I'm showing a small summary in the footer. When the data in the row changes, the affect should be reflected in the footer as well.