The fitness segment of Brunswick Corp., led by Life Fitness, reported an 18 percent increase to $218.3 million for the first quarter ended April 2, but its operating income fell by 22 percent to $20.1 million due to higher marketing expenses and $3.8 million in integration costs for the newly acquired Cybex and Scifit operations, which contributed all the revenue gain. Segment sales rose by 22 in the U.S., by 14 percent in Europe and by 11 percent in the rest of the world. In constant currencies, European sales were up by 18 percent including acquisitions. Excluding acquisitions, U.S. sales were down slightly for the segment. Overall, Brunswick booked an 11.6 boost in net earnings to $63.2 million on 9 percent higher sales of $1,070 million.