INDIA, Jan. 20 -- Parents, please take note. Researchers have revealed that less active infants may accumulate more fat, which in turn may put them at risk for obesity later in life. For the study, published in the journal Obesity, researchers tracked the physical activity levels of 506 infants using small ankle-worn accelerometers for four days per tracking period at ages 3, 6, 9, and 12 months. For each tracking period after 3, average physical activity increased by about four per cent, in line with infants becoming generally more mobile and active over the course of their first year. Among infants, higher physical activity measured by the accelerometer was associated with lower central adiposity, a measure of lower-torso fat accumulation...