Scientists hate to make hard conclusions when it comes to affirming anything. Thus, they are apt to call for future studies to confirm or dispute their findings. When a fitness program for little kids who are obese claims improvements in areas of fitness if not in body composition, don’t take it with a grain of salt when they write it “may” improve fitness.
It DOES improve fitness.
Does it matter in their long-term health or BMI status? That’s a whole ‘nuther ball of wax: