One way to enable communication within a network is to share a clock signal for synchronization. This work presents a heartbeat-based synchronization scheme for body-worn nodes. This coordination technique principle, combined with a puncturebased communication method is introduced. Theoretical models of the hardware blocks are presented, outlining the impact of their specifications on the system. The synchronization efficiency is evaluated in simulation and compared with a duty-cycled receiver topology. Improvement in power consumption of at least 25% and tight latency control are highlighted at no cost on the channel availability.