Johnson Health Tech experienced a 203 percent jump in net income to 349.2 million Taiwanese dollars (€8.56m-$11.65m) in the first quarter on 10 percent higher revenues of TWD 3.66 billion (€89.75m-$122.08m). Sales grew by 20 percent at the company's commercial arm, Matrix Fitness, with growth of 24 percent in North America, ...