Life Fitness, a division of Brunswick Corporation, delivered annual operating earnings up by 10 percent to $103.1 million for the period ended Dec. 31. The operating margin rose by 1.5 percentage points to 16.2 percent. Divisional operating earnings in the fourth quarter increased by 29 percent to $36.4 million driven by higher sales, lower warranty and variable compensation expenses, and improved efficiency. Brunswick posted net income of $50 million against $71.9 million last year, a decline of 30 percent. This year's results included a loss from discontinued operations of $97.4 million. Net income from continuing operations rose by 63 percent to $147.4 million. The group also reduced debt by $121 million.