Cardiac vagal tone and executive functions: Moderation by physical fitness and family support

Executive functions (EFs) are crucial for academic success and have recently been linked to the ability to self-regulate in terms of cardiac vagal tone. The current study used a sample of 131 first-and second graders to examine whether the expected association between cardiac vagal tone (indexed by rMSSD) and EFs (inhibitory control and cognitive flexibility) was moderated by children's physical fitness and perceived family support. Linear...