My gym instructor said to me that if I do a 40min run with HR @150-155bpm then the last 20mins would be fat burn. Is this correct? I do a 5 minute cool down on top of this then some abs work for about 20-30mins. Is this an effective use of my time in between weights days to be losing weight/fat? I've worked very hard on my diet lately and have started to notice promising results but want to maximise these with my time in the gym.
Thanks,
Thanks,