My daughter who runs with Sittingbourne Striders, says thats OK Matt, its perfectly acceptable to jog one
That's very sweet of her!
ANYHOO ... Wiki uses the definition that I'm familiar with for "running":
It is simply defined in athletics terms as a gait in which at regular points during the running cycle both feet are off the ground. This is in contrast to walking, where one foot is always in contact with the ground ...DM's right in that one's gait changes with speed (of running!), although clearly it's a continuum. I do think that this variation in gait/technique is what makes run training a lot more complex than for cycling. On the bike you can do all your training with the same position, cadence, pedalling style, and with a bit of cunning variation in effort level,
pretty much achieve any training goal.
On the other hand, I think that with running - and I stress I'm still only beginning to understand all this - you really do need to run with a variety of gaits/speeds, and you need to run with your race 'gait' for a reasonable amount of time for perfect preparation. [but there's a load of overlap - I've done negligible sprint training this winter, just plodding, yet felt quite happy running km5 last week flat out. That's not to say that speed-specific training wouldn't have made me faster ... ]
No doubt someone properly qualified can tell me what bolox this is