Category: Assorted

The Science of Digging – How to Reduce Injury Risk

Here’s an item that allotmenteers might be interested in. Researchers at the University of Coventry, in partnership with the RHS, have published the results of a study into the damaging effects of bad digging practice, along with a few suggestions as to how to improve your posture and technique to help reduce the risk of back and shoulder damage.

Using the University’s 3-D motion capture technology lab, the team assessed the impact of various digging methods in terms of musculoskeletal damage risk. In the researchers’ words: “A novel method of determining joint angles, joint torques, and contact forces, using three-dimensional motion capture and musculoskeletal modeling, was applied to the movements of a sample of workers, engaged in the horticultural task of digging, to determine if objective biomechanical data could be correlated with a subjective visual assessment to predict risk of injury.”

The general conclusion – which was also mentioned in a short article on BBC Breakfast on Monday – is that good posture and practice involves standing as close to the spade as you can, bending with your knees rather than your back, and using smooth, regular actions (top row, below). Bad technique involves stretching and reaching with the spade, bending the back and using jerky, irregular actions (bottom row).

University of Coventry digging posture diagram
Image via HortTechnology online.

The full study has been published in the journal HortTechnology. One thing I noticed was that the 15 subjects that participated in the study were asked to use the same spade throughout. Which makes sense from the point of view of comparing two digging methods, of course, but it would have been interesting to see if there was any difference between the standard ‘digging spade’ used and a long-handled spade or shovel, which I’m a big fan of. The latter allows for a more upright posture, provides more leverage during the digging action, and seems to encourage more leg and shoulder work, rather than back-twisting, which the study highlights as a particular danger. But that’s just my experience, and a motion-capture study might prove me wrong.

Of course, if you really want to minimise the risk of musculoskeletal damage, you could adopt Charles Dowding‘s no-dig methods and save yourself a lot of back-ache that way.

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RHS Level 2 Exams Imminent

Royal Horticultural Society

Since January this year I’ve been studying to take the examinations for the RHS Level 2 Certificate in Plant Growth, Propagation and Development. Those exams are coming up on Monday and I’ve been revising like crazy of late, hence the recent lack of blog updates. That’s likely to remain the case until the middle of next week, although I might sneak a couple of quick ones in if I get time.

Anyhow, I just wanted to take this opportunity to wish any and all fellow L2 PGP&D students who are taking their exams on Monday the very, very best of luck!

I also wanted to put a shout out for the course itself. It covers everything from molecular cell biology to appropriate use of control methods for plant health problems, via soil structure and texture, propagation, pollination, respiration, photosynthesis, and a hundred and one other topics. Personally, I’ve enjoyed every minute; It’s been an absolute pleasure, and a real eye-opener. I’ve learned more about the science and common sense practice of gardening that I think I would have picked up in the next five, maybe ten years of just getting out there and having a go. If nothing else comes of completing the course (although I hope it will), I’m sure I’ll have improved as a gardener and grower as a direct result of taking the course and I highly recommend it for anyone who has the time (and the spare cash to cover the course fees).

Speaking of which, there’s a list of approved teaching centres on the RHS website, but if you live anywhere near North Manchester / Salford I’d highly recommend the course I attended, at Ordsall Hall. Run by the fantastically enthusiastic and hugely knowledgeable Lindsay, in the settings of a genuine Tudor mansion and its grounds, with a fully equipped teaching room; it’s a great venue, with a great course tutor.

If you’re even vaguely horticulturally inclined then I think you’ll get a huge amount out of it. Or, if you think that a Level 2 Certificate in Garden Planning, Establishment and Maintenance might be more your thing, then applications are open now. I’ve already signed up, so I’ll see you when the course starts in September!

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Vitopod Pro-Tip: Maybe Invest in that Extra Level..?

Yeah, it’s cute when your cat sits on top of the toasty, warm Vitopod propagator. Well worth taking a snap and tweeting it:

But later on, when she decides that vermiculite smells like cat food, works out how to open the top vent, reaches in with a furry paw and trashes half a tray of chilli seedlings trying to get at the good stuff… you’ll wish you’d remembered to put the second level in and raised the overall height a bit more.

Trust me on this one 😐

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