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Coast Road in North Avoca tested my limits this morning.
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The Holter Monitor involves having five electrodes, connected by wires to a battery-powered recording unit a bit larger than a smartphone, stuck to various parts of my chest for 24 hours. The device will record my heart activity and I'm supposed to note the time of any periods when I feel breathless or notice heart palpitations. I was worried the electrodes would become detached while I slept, but the technician did a good job of taping them down, and they were still there this morning.
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Wamberal Beach from my walk this morning.
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The Respiratory Specialist yesterday, while not encouraging me to run, implied that it wasn't necessarily dangerous, just that it would be difficult and uncomfortable. I didn't want to confirm his prediction, but did want to get my heart-rate high enough today to provide good evidence of the occasional problems I have experienced in the last month.
Thursday, as usual, started with supervision of the 6:00am track session at Terrigal Haven on what was a beautiful sunny, and a little humid, morning. I watched the twenty or so runners go through their paces (seven times 800m with a minute recovery between each) in the 45 minute session before they headed off to their breakfast coffees, or work, or to get their children ready for school, or all three. I always feel a bit lazy, being retired, that they have to rush off while my day continues at a more leisurely pace.
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Terrigal Beach this morning.
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I returned to my car, donned my radio and headphones, and set out on a 7km walk that would include several hills I thought steep enough to test my impaired cardio-vascular system. Rather than my usual stroll, I walked a little more briskly to encourage the symptoms. The first significant hill climbs up the Scenic Highway out of Terrigal and I fully expected to succumb to breathlessness as I maintained a good pace, but I was surprised to reach the top without a problem. It was good that I was feeling better than expected, but bad that there was no discernible heart arrhythmia for the Holter Monitor to record. A little nonplussed, I continued on down Tramway into North Avoca, circled through the beachside streets and tackled the second steep hill, Coast Road. This hill is steep enough to always be a serious challenge when running, and I couldn't envisage walking briskly up it without testing my current limits.
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Terrigal Haven this morning.
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Sure enough, after about 100 metres of serious climbing, I felt my heart racing and my blood pressure dropping. I had to stop for fear of passing out, and just stood quietly for a minute, ready to sink gracefully to the side of the road if necessary. After a minute or so, my equilibrium was restored and I continued on. However, a few hundred metres later, at another short sharp little pinch, the same feeling enveloped me and I had to stop and stand still for a short period, again ready to cushion my fall to the road if I fainted.
It was encouraging, though, that once equilibrium was restored, I felt fine and could continue on at a good pace so long as the grade wasn't too steep. I walked another couple of kilometres down into Terrigal before returning along the beach promenade to The Haven and my car, where I noted the times I felt unwell for the doctor to compare to the heart monitor. I'm sure he will have something to look at now.