Yes, just means run at a slow pace
a long slow run is usually called LSD.. long slow distance. Otherwise, just "easy" or a "jog".
Jog
quite simply an active cool down such as a slow jog
It really depends on your body weight and the intensity of your run (or jog).
you jog in the first half then you run in the second half
Jog long slow distances for appx 10 days to 2 weeks.
No, "jog" is not a relative pronoun. "Jog" can refer to a type of physical activity involving running at a steady, gentle pace. Relative pronouns include words like "who," "which," and "that" that are used to introduce relative clauses in a sentence.
Cool-down
The jog is generally a western movement. The english equivalent would be the trot, which is more forward-going than the western jog. Dressage at the high levels requires several types of trot: collected, working, and extended. Arguably the passage is also a very slow, animated trot.
Yes, 15 minutes is enough time to be at an aerobic level of exercise, but it depends on the fitness of the person and the intensity of the run.
Karvonen