Underwater Running Survey

An upright form of Underwater Running is possible so long as the runner is heavier than water – ie has negative buoyancy!   The author’s underwater running style is unique in that it works irrespective of the runner’s buoyancy. By way of comparison, this article surveys several different ways of achieving negative buoyancy for upright Underwater Running.

  1. There is a beauty to this slow motion running in a pool! This swimmer achieves negative buoyancy by exhaling prior to submerging.

2. By comparison, the Bajau free diver’s walk is just mesmerizing.  The diver achieves negative buoyancy through low BMI, and diving deep enough that the lung volume is reduced by a significant fraction.

  1. And of course, negative buoyancy may be achieved by carrying a rock!

In contrast to these approaches, the author’s Underwater Running style does not depend on achieving negative buoyancy! Keep your lung full of air, all BMI’s may apply, works in any depth of water and … no rocks required!

 

Underwater Running Demos

Underwater running on sand in deep water provides high resistance aerobic exercise.  (No weights or other equipment required.) Here are a couple of videos showing the technique.

Management – Reading

The effect of power on the manager, a brilliant paper.  Very sobering. "Power and Perspectives Not Taken" by Galinsky et. al. … [Continue reading]

Unified Notation

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Lean – reading

I am convinced that Lean thinking and work patterns are crucial for IT-related change projects and the IT Service Management portfolio. When I am seeking inspiration I dive into: Lean Production Simplified, Third Edition: A Plain-Language Guide to … [Continue reading]

Personal Productivity – Reading

I have been reading zen habits for a while - but this is a gem: My most important productivity method.  Here is the thesis: Pick something important to work on (a task from your most important project, perhaps). What you pick doesn’t really … [Continue reading]

Keys for Agile Co-Evolution of the WBS and Schedule Network: The ‘Schedule Network 100 Percent’ Rule and the ‘Add and Prune Dependencies’ Algorithm

projectmanagement.com Knowledge Shelf just published an article of mine on "Keys for Agile Co-Evolution of the WBS and Schedule Network: The 'Schedule Network 100 Percent' Rule and the 'Add and Prune Dependencies' Algorithm" Abstract The “schedule … [Continue reading]

Management of IT Reading

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Starting a project late is worse that finishing it late

Over the last few years of reading Glen Alleman's "Herding Cats" blog, I have come across the refrain "Risk Management is how adults manage projects" many times.  Today, I chased down the source of this quote to Tim Lister's 2004 "How Much Risk Is … [Continue reading]

Risk and Safety discussion

Having identified our risks we then proceed to characterise the source, the causal mechanisms, the consequences, identify controls and finally apply some sort of ranking to the risk. Sounds fairly straightforward and objective doesn’t … [Continue reading]

IT Service Management Reading

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PMQu: A Quality Tool for Project Information in MS Project

(Article published first in "The Critical Path", PMI Sydney, April 2015) The open source add-in for MS Project called “PMQu” assists project managers to create, and maintain, quality-checked project information. Earlier in this series of articles, I … [Continue reading]

WBS and Schedule Network coherence at scale

(Article published first in "The Critical Path", PMI Sydney, February 2015) As argued in a previous article[1], common definitions of “deliverable” in the WBS and schedule network may be maintained by having “Start” and “Finish” milestones in the … [Continue reading]

Having a common definition of “deliverable” in both WBS and the schedule network.

(Article published first in "The Critical Path", PMI Sydney, December 2014) Having a common definition of “deliverable” in both WBS and the schedule network assists project managers to build a common understanding of the project scope and progress … [Continue reading]

“Ready for use” and “Ready to use”

I am prompted to write because of a useful paper: "Perspectives on the Formal Authority Between Project Managers and Change Managers"  in the October/November 2014 Project Management Journal by Julien Pollack and Chivonne Algeo both of the University … [Continue reading]