There is no fitness lover that can honestly say that they have always done exactly what they set out to do in their work out. Everyone has quit their workout at least once in their life after half an hour or less. Sometimes this is for a legitimate reason, but often it is because we just do not have the discipline. There are ways, however, to lessen theis risk of throwing the towel in.
First of all, the use of modern technology is a perfect way in ensuring adherence to goals. With an app or computer built into a fitness device such as a treadmill or cross trainer, you can not cheat so easily. If we set the device to run for half an hour, you will run for that half an hour. You should not over rely on technology but its a good way to keep your discipline. Moreover, this is a way of ensuring that whatever has our backs is honest to the minute or second.
Second, it is also possible to tailor our workout so that we do not feel overly tired halfway through and then simply slack off because we have burned ourselves out. An ‘up and down’ approach ensures that, if we are engaged in some hard-core training session, a more relaxed set of exercises is just there, giving us a chance to recharge and exercise at a manageable pace. Avoiding a cycle of an easy start followed by an absolute powerhouse of fast paced cardio and weight lifting is always sensible if we know we have issues with discipline.