Showing posts with label high intensity interval training. Show all posts
Showing posts with label high intensity interval training. Show all posts

Sunday, January 6, 2013

Should I use an Aero Helmet?



Do you have more than 1 bike helmet? Are you one of those cycling enthusiasts with a helmet for each cycling discipline?

I have only 2 helmets. One for road cycling and the other for time trials or triathlons. When new to the sport of triathlon, it can be confusing as to whether to buy another Aero helmet or to just stick to your road helmet during races.

I have come across an article to shed some light into the issue.

Issues regarding use of AERO Helmets.
1. Aerodynamics. This translates to time saved during the cycling leg or time trial course. This depends on factors like shape of the helmet and position of the helmet tail on your middle back. Lesser space in between your middle back and the helmet tail will equate to better aerodynamics thus increasing your time savings. This is a rough estimate of time savings just by using an Aero Helmet.

a) Sprint distance: 15-30 seconds
b) Olympic distance: 30-60 seconds
c) Half-Ironman: 1.5-2.5 minutes
d) Ironman: 3-5 minutes

2. Heat. Aero helmets have lesser cooling vents to maximize aerodynamics. Unless you are racing in very hot environments for long hours, these will not affect your performance. As long as the body is kept ventilated during your ride, the restricted cooling of your head should not be an issue. If it is too uncomfortable, change to an aero helmet with cooling ports. 

2. Cost. Aero helmets tend to be more expensive than regular road helmets. If you are on a tight budget, stick with the road helmet for general use. 

Remember that using aero helmets can only be of benefit if used properly. Try not to look down or to your sides very often as this can cause you to lose aerodynamics very quickly. Find a head position with less helmet noise or turbulence to maximize aerodynamics. Try to tuck in your head (turtling) during the ride to maximize the aero position.  Imagine pushing your chin down towards your front hubs to tuck in your head. If your aero helmet has a long tail, try to feel the tail touch your middle back to minimize the space between the helmet tail and your middle back. 

Hope this helps. Good luck!



Wednesday, November 28, 2012

The solution to Time-crunched Athletes


I am a full-time Doctor training in Adult Pulmonary Medicine and time is a luxury I do not have. Reports, lectures and patients eat away my daily hours. On top of that, I am an exercise addict and want to sweat to relieve stress and stay healthy. 

I used to train 10-15 hours a week when I trained for my first Ironman 70.3 in CamSur. This was 2 years ago and I was not doing medical training back then. Now, I have to squeeze in a few minutes to hours (if I am lucky) just to run or bike or swim in my hectic time schedule. I can only commit to 3-5 hours per week of training and need to build good quality workouts in my training program. 

In a few days, I will register for the 2013 Ironman 70.3 Philippines and have to be ready enough to finish the 1.9K swim, 90K bike and 21k run. Despite my half-ironman finish last 2010 and 2011, I am still nervous I may not be prepared for next year's race. I have committed to losing weight and be as lean as I can next year. I hope to achieve target race weight of 68 kilos by March next year. So far, I have lost more than 5 kilos in more than 2 months and still losing. I use an accurate weighing scale and a BEI measurement device to  keep track of my progress. I record my weight, body fat percent, Basal metabolic rate (BMR) and Body mass index (BMI) every week. (I will soon blog about how to properly use a BEI device)

I convinced myself to cut down on my daily calorie intake and started to choose high quality foods. No processed foods as much as possible. I eat lots of proteins, drink as much water and regularly take my daily food supplements. I still eat at least 3x/day sometimes as often as 5x depending on my daily energy expenditure. I eat small meals enough to satisfy my stomach and not feel hungry all the time. I snack on high quality foods like fruits or nuts to keep me full. Although I allow myself cheat days, this half of my training regimen has been successful. Losing weight and staying healthy is not just about cutting down on food intake. 

The other half is more difficult. I have to exercise or train with only 3-5 hours to spare a week. I have to make quality workouts on my swim, bike or run training to achieve good results. I can only do my bike training using a trainer to maximize time. Cutting down on bike preparation prior to a ride, I can start spinning and focus on my program immediately after commencing my spin program. I usually spin with Team Reborn mates Jung and Gianluca to bear the pain of spin training. I repeatedly remind myself of my mantra while suffering on the trainer. IWBMATTKYT. "I Will Beat My Ass Today To Kick Yours Tomorrow" I got from The Sufferfest website for cyclists. I keep my runs short and hard. Long runs are faster than my previous long slow distance (LSD) runs. I rate my efforts based in on a RPE (Rate of Perceived Exertion) scale of 1-10. Interval workouts are usually at 8-9 (sometimes 10) and recovery at 6-7 on the scale. Because of my lack of time, I follow a training principle called HIIT or High Intensity Interval Training.

HIIT principle states that workouts/ intervals need to be hard enough to cause a sharp increase in oxygen consumption (VO2 max) to maximize exercise gains followed by bouts of recovery. This method can help you build power and endurance in only a short amount of time per workout. It also improves weight loss by burning fat hours after your workout. Running HIIT will have more exercise gains compared to an ordinary run workout of the same duration. The only drawback is that you have to tolerate the suffering. It hurts to push your body harder (not longer) with only a short burst of near-maximal to maximal effort followed by a recovery phase and repeatedly doing it. Workout sessions last only 20-30 mins but are as effective as longer programs. And because sessions are shorter, It reduces risk of injury from overuse or overtraining when done properly. 

If you are a time-crunched athlete like me then maybe you should start incorporating HIIT training to fully maximize your exercise gains. Time is never an excuse to not exercise. Make time to exercise. Your body is your biggest investment. See you on the road!!! 

REEL RUNNING FANS

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