The GCC Pedometer

A lot of technology research and development goes into making it look so simple.

The technology

GCC has invested heavily in Research and Development over the past 5 years to design and manufacture the strongest, most accurate and durable pedometer you can own.

The GCC pedometer is one of the hardest working in the world, and it needs to be able to deliver accurate readings while also withstanding the rigours of daily use over the 125 period of the event.

The accuracy of the pedometers is critical. Near enough just isn’t good enough, so, every year, participants receive the culmination of 12 months worth of testing, refinement and new technology. Only after withstanding third party lab testing on its durability and exceeding the GCC accuracy benchmarks, will any GCC pedometer be approved for distribution.

How they work

The GCC pedometer combines the principles of equilibrium and inertia, with the technology of digital processing to record your step count. They are precise electronic instruments comprising a mechanical movement sensor, electronic circuit board, LCD display and battery power source (LR1130 alkaline cell battery).

Inside the unit a tiny spring-set horizontal arm moves up and down as you walk, measuring the vertical movement of your hips and activating a motion-sensitive electrical circuit. This measurement is then processed by a software application and displayed on the pedometer’s LCD screen.

Testing times

Research and development provides technical advances but testing is what provides us with the knowledge that things will work. Here are just some of the tests we have had every pedometer certified on via third party testing. As you can see, the GCC 2008 pedometer goes through a demanding schedule of diagnostics before they are even seen by participants.

Multiple sinusoidal vibration tests

Machine testing every single pedometer and rejecting any that fall outside our quality performance range.

Multiple random vibration tests

Vertical, upright and horizontal compression testing to load failure ensures the frame structure exceeds the required strength standards to earn certification for GCC use.

Clip strength testing to 20mm/min movement and 50lbs pressure

Machine weight bearing tests to ensure pedometer clips pass the high benchmark strength requirements set by the GCC.

Accuracy measurement testing

Machine testing every single pedometer and rejecting any that fall outside our quality performance range.

Why so much testing?

GCC pedometers are worn on suits, dresses, jeans, skirts, shorts, tracksuits... they are worn in meetings, at desks, on planes, at the football and around the house... they work flat out for the 125 days of the GCC and they are bumped, thumped, dropped, and stretched.

In response with 5 years feedback from our participants, our testing and development is thorough to ensure the GCC pedometers are strong, lightweight, durable, unobtrusive and discreet.

The evolution of the GCC pedometer

2004 Pedometer

Moulded frame based on a typical pedometer that you could purchase from most large sporting retail chains.

2005 Pedometer

Moulded frame based on the dimensions of the 2004 model but with “bullet-proof” plastic to increase durability. In the 2005 model, we indented the RESET button slightly to avoid accidental resets to 00000. We also introduced upgraded structural elements developed in testing, including a newly designed circuit board, battery holder and new integrated polycarbonate back face, removing the need for battery cover hassles.

2006 Pedometer

We increased the surface area of the clip to enhance strength and an even distribution of load stresses. Additional strength also resulted from the addition of a reinforced load bridges on the top of the clip. We further recessed the RESET button.

2007 Pedometer

The enhancements from testing in the 2007 unit was all about size. New technology allowed a smaller casing and a less noticeable presence for the participant. In 2007, we also added a small lip to the recessed RESET button to even further reduce the possibility of an accidental reset.

2008 Pedometer

5 years of development has resulted in a dramatic size reduction and a resulting shape change that makes it the lightest, most discreet and unobtrusive pedometer to date. This refinement now means the pedometer can be worn inside clothing (inside skirt waists) with little obstruction. The size reduction also means a decrease in stresses through an already proven and unchanged clip structure.

2008 Pedometer II – Near enough just isn't good enough for the GCC

We recently discovered that a batch representing a very small percentage of pedometers was performing outside our demands. As a result our decision was easy. Push forward an upgrade, create new and more rigorous tests and replace them all.

Fortunately, our 2009 pedometer has just completed its own testing and includes an impressive upgrade (a completely new IC - the engine that drives it) that has easily passed the new and even more rigorous tests. All participants must now wear the V2 pedometers. Everyone gets one to wear and one as a spare. You can consider the old ones as a gift from us, so pass them on to friends and family. Please ensure you wear the new pedometers, that way everyone is using the same calibrated equipment.

The same yardstick

Let us set an immovable, assured constant. This constant is the actual number of steps you take - it is the absolute physical step count you have taken in any period of time. Now, the fact is pedometers will always have a variance from the constant. When you take 1000 physical steps, your pedometer may record 993. The important thing is that a) your pedometer has as little variance as possible (hence the research and development that goes into every GCC pedometer) and b) if comparing with other walkers and their totals that the variance is the same. You need to measure apples with apples.

That is why all GCC participants wear the same designed, produced and engineered equipment.

Rest assured that any variance you see when manually counting, is irrelevant because what is important is that your count is consistent with all other participants. It’s a level playing (walking) field for all.

FAQ

Q: How do I wear my Pedometer?

Clip unit to your belt, skirt, slacks or pants on your HIP, ensuring its straight (not on an angle).

Q: How do I take care of my pedometer?

A. Pedometers worn incorrectly such as on the front of the belt buckle increases the risk of damage to the pedometer and incorrect step readings. Care of your pedometer is important.

Q: Is it normal for my daily step count to vary a lot, or to vary from participant to participant?

A. If your step count reading varies from day to day, don't worry, as sometimes this may happen.

Reasons for this are:
  • A person's steps vary.
  • You may have worn the pedometer in the incorrect position.
  • People with more abdominal weight may move the alignment from vertical to more than 20 degrees and hence stopping the pedometer from reading steps.
  • The chances of walking the exact steps on multiple days are pretty slim.

Q: What is a 'gait' and how does it affect pedometer readings?

A: Your gait is the way you move your body when you walk. The parameters of an individual's gait are grouped to spatial-temporal (step length, step width, walking speed, cycle time) and kinematic (joint rotation of the hip, knee and ankle, mean joint angles of the hip/knee/ankle, and thigh/trunk/foot angles) classes. All of these factors have an influence on a pedometer’s reading and are the reasons for differences in ‘hypothetically identical steps of two people'. Don’t be surprised if your see your pedometer record different step counts. Different gaits, which hip you wear your pedometer on and pedometer positioning can all result in varying step recordings.

Q: When to wear my pedometer?

Ideally your pedometer should be with you at all times, and taken off before you go to sleep. You may then record your steps every 24 hours. As little as 250 steps a day over the course of a challenge equals 17km/10.5 miles per person or 118km/73 miles per team. This is significant.




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