An April 2021 study by Cardiac Exercise Research Group (CERG) at the Norwegian University of Science and Technology (NTNU) said,
"Previously, we found that 100 PAI (Personal Activity Intelligence, tracking heart rate) a week can give us a longer and healthier life without cardiovascular disease. Our new study shows that PAI can also help people maintain a healthy body weight,"
"We already know that physical activity is an effective strategy to minimize or prevent weight gain in adults. The new study, and previous PAI studies, indicate that PAI can guide people so that they get enough physical activity each week to avoid the health hazards of excessive weight gain,"