-
It's coming, that first hot exercise day of the season!
The first genuine hot day of the season draws you out to exercise. You start well, probably too well, it’s just so good to be out in warmer conditions again. Then, about halfway through your session, you feel somewhat laboured and shorter than your normal breath at your typical pace. You notice your heart rate is higher than usual, and you are forced to back off the pace a little towards the finish!
Then, about 3 hours later, you feel;
🥵 Parched,
🥵 (Close to) Muscle cramping,
🥵 Salty skin,
🥵 Headspins from getting up too quickly,
🥵 Tired & lethargic, mentally & physically,
🥵 Hungry, particularly for sweeter food,
🥵 Hotter than usual,
🥵 Ripped off from sub-optimal sleep.
All this is normal – you’ll be firing in 8-14 days with heat acclimation.
For most endurance-based activities, the critical limiter is the removal, or lack thereof, of induced body heat. The less energy it takes to remove heat, the more energy available fpr functional activity.
Here’s my acclimation data from the last time I was in Hawaii.
Testing details: Hawaii, Big Island, October 2017, 7km flat run @ 30’ and 82% Humidity.
Date Pace/ kph HR - Average Blood Lactate - mmol 3.10.2017 4.20 152 2.9 5.10.2017 4.20 148 2.5 8.10.2017 4.20 146 2.2 11.10.2017 4.20 138 1.8 Acclimation tips.
😊 Consistent Exposure to warmer conditions,
😊 Bicarb soda (1/3 tsp) in water – before, during & after your sessions.
😊 Splashing water over your face (cooling from the outside in), &
😊 Post-session plunge pools – the colder, the better.
-
Does altitude boost aerobic potential?
My recent experiment.
My lifestyle for the past seven years.
One week @ 1500m in the Snowy Mountains.
Two weeks @ 0m in Sydney.
I exercise for one hour every day.
My typical week @ 1500m.
Day Exercise Sleep Hemoglobin/ Hematocrit
1 Breathing challenges. Awful – near zero. 16.1/ 44%
2 A higher HR than normal. Again, minimal REM. 16.0/ 44%
3 Limited higher intensity. Better, but still intermittent. 16.2/ 45%
4 Feel better @ 80%, only. OK, but always thirsty. 16.4/ 45%
5 Good after the warm-up. Solid 5 hours. 16.4/ 46%
6 Feel normal. 80% of a full night’s sleep. 16.6/ 46% 1 – Sea level 5-10% more aerobically efficient – feels effortless. Sleep for Australia. 16.6/ 46%
What is Hemoglobin?
Hemoglobin is the protein within red blood cells marrying iron & oxygen in readiness for transportation around the body (see pic). Hemoglobin is the currency of endurance athletes. More is typically better. Higher hemoglobin increases the potential for enduring aerobic activity. More oxygen = more work.
What is Hematocrit?
The percentage of red blood cells in the blood, or hematocrit, is measured. Red blood cells, platelets, white blood cells, and plasma are all blood components. Plasma is the liquid portion of blood that also contains hormones, nutrients, and electrolytes.
While genetics presets much of our oxygen-carrying potential, data shows fitting exercise at altitude can boost hemoglobin.
The body improves oxygen-transporting efficiency with less oxygen at an altitude of 1000m>.
Increasing high-heme (iron) food like spinach & broccoli can also help hemoglobin adaptation.
Summary: For many people, being at altitude for a week or longer enhances their aerobic potential AND adaptability to burning body fat.
-
My no-exercise experiment!
I promote exercise for a living and believe in the benefits of regular and fitting exercise.
I can’t recall missing too many days over the past 30 years! While many consider this somewhat of an addiction, a mental flaw, or just plain weird, I feel odd without daily activity.
Before listing my top 5 benefits of regular exercise, I thought I’d try 4 days of zero exercise. Keep in mind I am not ill, injured, time-poor, or weather restricted.
Day 1 – I feel fidgety, hungry, and have dry skin.
Day 2 – The hunger has settled, but my interest in sweeter foods increased. Oh, and the car bluetooth wasn't connecting, which caused me to blow up.
Day 3 – I didn’t sleep well. I couldn't take my thoughts off the apparent difficulties of the following day.
The afternoon had me yawning, and saw another blow-up as my iphone updated and changed my settings.
Day 4 – I think I have put on weight (I had not). I am losing the motivation to exercise – yikes! I chose not to introduce myself to a new acquaintance.
Day 5 – Reluctantly, after procrastinating for 3 hours, I pull out my exercise clothes, throw in some ACDC, and after a clunky start, within 50 minutes, I am back to my old self.
My top 5 reasons for (any) exercise!
1. A positive mindset.
2. A positive mindset.
3. Postural balance, which relates to mindset.
4. Self-regulation of the appetite – food type, volume, and timing.
5. A positive mindset.
I don’t recommend the no-exercise experiment!
-
The 'spring into summer" strength sets have started!
14 x 10-min dumbell sessions.
Choose 'your' bells & press play.