Monday 12th February to Sunday 25th February: Ski Fit
Week six started the day after my first half marathon for two years. The good news is that I felt no fatigue at all from the race, no aches, no tiredness. The week started with an early morning My Ride Spin session and I was pleased to complete another week of three sessions, bringing to close a consistent block of five weeks of three times a week spinning classes since the accident. Running was made up of three runs, two long slow runs and one treadmill session with steady intervals.
Getting Ski Fit
On Saturday I travelled and on Sunday I went skiing. I wore my Garmin but didn’t really give an exact record of what I did as I was too cold to run it on when we started! I did however record 25 miles worth of skiing and found my heart rate averaged 81 and maxed at 116pm – so for me it seemed it’s not an aerobic activity. (It’s worth noting it was day one and I was skiing cautiously because of my recent collar-bone break), However, exercising at altitude, being outside all day, working out in the cold leaves me feeling, well, knackered. And according to Harvard Medical School, a person who weighs 155 pounds burns 223 calories in half an hour of downhill skiing. And three days in I’m feeling ski fit! I’ve noticed the burn in the quads after a long day, and the satisfying tiredness from being cold and active at altitude. I did wonder if five weeks of spinning had helped me ski better, but I’ve read that quads are not worked eccentrically on a bike, as they are when you ski.
Strength, balance, agility
However, from my experience over the last few says I feel my body being challenged to be strong, to be flexible and to balance and be agile. I’ve focused on using my core muscles and am aware as I twist and turn downhill I’m working my legs as if I were doing repetitive squats at the gym. And once again I’ve been reminded that I must stay flexible as I get older (I want to be able to get up when I fall on or off the ski slopes!).
I’ve also hit very, very cold points (including getting so cold today I was reduced to tears) and I’ve had some serious shivering episodes. However, I’m reassured that my shivering means I can scoff more tonight. As Outside Magazine reports, ‘A 2010 review of studies on shivering, published in Frontiers in Bioscience, found that 75-to-80 percent of the calories consumed by shivering came from muscle glycogen stores. So if you find your teeth chattering, you’ll want to increase your carb load’. And as I know from experience of preparing to swim in cold temperatures for the Ben Nevis Braveheart Triathlon, brown fat activation happens when you’re cold for an added calorie burn boost.