Well, finally got round to doing my official 5k with a brick - have done a couple of practice goes at it but without being spectacular. Time is running out though so went out before lunch with the dog and made a proper stab at it.
... except, couldn't find the housebrick I had used on my trial runs. Children have usd it for den building or wife in some gardening hoohah. So, not to be dterred I took a fire brick instead. It felt a bit heavier, but I figured that would be okay so I wouldn't be cheating.
Was quite brisk out on the levels, with a light drizzle and chill breeze. All of which was to the good as I got quite hot quite quickly.
The firebrick was rather a lot heavier than I had first given it credit for. On my earlier attampts I hd carried the housebrick in one hand and swapped every 500m. After 500m with the fire brick I was almost at the point of collapse and my arms, having swapped at least 27 times by this point were at least 4 inches longer than when I set off. I had to run the rest of the way clutching it against my body with both hands.
Was grim work. And rather futile in the end. I had kept at it hoping to get a sub 30mins before submitting a time: whilst I can usually run quite a bit faster than that at a push, the housebrick attempts had been severaly hamoered by the upset rhythm of swapping the brick about and I had 30:06 as the better time. Wasn't even close to that this time. Although when I got home and weighed the firebrick, I felt marginally better about it. It was quite an interesting experience (now it has finished) - I have run with a weight vest before but that is evenly distributed about your body and doesn't require thinking about. Running carrying something is an entirely different kettle of fish. Quite apart from the weight issue, there is the loss of use of your arms as part of your usual running style, the balance issue, the chnage in your centre of gravity etc. Definitely a fun thing to play around with in your training. Well, interesting might be a better word than 'fun' per se.