The invention relates to a valve train mechanism (10) comprising at least one camshaft (11), having a first valve actuating unit (18) for actuating at least one first gas exchange valve (38, 59), which is provided to convert a rotary motion of the camshaft (11) into a force for switching between two different cam followers (40, 41) associated with the at least one first gas exchange valve (38, 39), and having a second valve actuating unit (19) for actuating at least one second gas exchange valve, which is provided to convert a rotary motion of the camshaft (11) into a force for switching between two different cam followers associated with the at least one second gas exchange valve, wherein the first valve actuating unit (18) has at least one first release element (21, 22) connected to the camshaft (11) for conjoint rotation, and the second valve actuating unit (19) has at least one second release element (23, 24) connected to the camshaft (11) for conjoint rotation, wherein the release elements (21, 22, 23, 2
