a continuous high-effort run, without stopping and starting in between. Not the same as threshold training (despite what google says); threshold is still slightly faster. Tempo would be effort 6-8, while threshold might be 8 continuously
Benefits
intentionally spiking lactic acid so your body gets better at clearing it. When lactate is cleared efficiently, your body will be able to run for longer without the delayed energy providing. ⇒ YOU BUILD ENDURANCE
your heart will get better at transporting oxygen to the muscles ⇒ improves VO2 max, cardiac output and edurance
mile repeats, where you go a faster pace for a certain distance with effort 4-7, and then jogging in between with effort 2
Different kinds of interval training:
Benefits