Monday, March 1, 2010
Runners Lament-What Shoes To Choose??
In general terms, 70% of runners have a medium arch and normal (neutral) pronation. Runners with high arches tend to under pronate and prefer narrow sneakers with cushioning. Runners with low arches (flat feet) tend to over pronate and prefer wider sneakers with motion control. All the sneaker companies make different models for the different types of arches and bio-mechanics. I recommend going to a running speciality store that has staff that will watch you run and/or look at your arches before suggesting what is best for you.
Personally, I have very low arches, but my bio-mechanics are close to neutral, so I look for sneakers that have arch support without motion control features. I like New Balance, Asics, and Mizuno because they tend to have a wider toe box for my flat feet.
Race Day Nutrition
The night before a race meal can consist of any food normally eaten as long as it has been eaten before previous training runs. Easily digestible foods are most often recommended, but some professional runners have been known to eat steak dinners the night before a race. The most important thing is to try different foods before training runs to determine what works best for you.
On race day it is recommended to consume a pre-race meal of 200-300 calories with 12-16 oz of water, 1-2 hours before the start. During a short event, consume 4-8 oz of water every 15-20 minutes to maintain hydration. For events lasting more than 60 minutes, an additional 120-240 calories per hour is recommended from a sports drink, gel, sport beans, or other high carbohydrate food to maintain blood sugar levels and enhance energy for performance.
Post race recovery includes a post race snack within 20 minutes of finishing, not standing in line at the post race beer tent. Depending on one’s body weight, consume a snack that is about 250-400 calories and consists of one gram of protein for every three grams of carbohydrates, and continue to re-hydrate. For salty sweaters, it is recommended that some salty foods be eaten to replace lost sodium. Then visiting the beer tent is ok.
Running In Cold Weather
Often runners assume cold air will damage the lungs, but the cold air is warmed by the respiratory passageways before it reaches the lungs. The discomfort felt breathing in cold air is due to the lack of moisture in the air. Cold air is very dry, and it causes runners to experience a dry sore throat and/or dry cough after running. Over time the body will adapt to the environment and less discomfort will be experienced. Using a scarf or bandanna to cover the nose and mouth will help pre-humidify the dry air.
The nose and mouth will frost bite long before the lungs will freeze, so runners should use extreme caution and respect the cold. The key is to have the proper running clothes to maintain body heat, insulate the body from the cold, and protect the skin from the wind chill. Dress in layers and use a base layer made of a technical material like CoolMax or Drylyte, which keeps the perspiration away from the skin.
The running gear and experience of each runner will determine where to draw the line of what temperature is too cold to run in. I draw the line for myself at a wind chill index below -20 F for runs that will take less than 40 minutes to complete. For longer runs, I draw the line above a wind chill index of 10 F depending on the distance. It is possible to run when it is colder, but I don’t think it is worth the risk.
Disney Marathon
When I registered for the January 10, 2010 Disney World Marathon, my thought process was that it would be my first marathon since my knee injury (Oct. 2008), and the flat course would be a good test for my knee. It would give me a chance of qualifying for Boston. The last time I ran Disney the temperature was in the 60’s at the start and in the 80’s by the finish with 88% humidity. Little did I know that the temperature for 2010 would be 27 degrees at the start (a record low), and it warmed up to 35 degrees by noon time, which was the coldest temperature ever recorded at Orlando International Airport at noon time.
As a result, there were more obstacles to overcome than most race days. One poor decision could mean not finishing or ending-up in the medical tent. The following is a summery of my experience:
The first challange was what to wear for running clothes. My last two 20 mile training runs were in similar temperatures, but I had issues with sweating through my upper body base layers and then getting cold chills at the end of the run. My solution was to wear a light water resistant windbreaker instead of my heavy windbreaker, under that an old long sleeve fleece that I would throw away after 5 or 6 miles, and 2 cool max shirts for a base layer. For my lower body, I ran in compression shorts with a pair of full length running tights over them, which is what I normally wear in cold temperatures. Lastly, I ran in my Worcester Fitness winter hat, a pair of thermal gloves (a second pair of lighter gloves in the windbreaker pockets), and a hydration belt that holds two 10 oz. bottles of my sports drink.
Next, I decided to get to the athlete staging area early. As soon as I got off the bus at the staging area, I notice the 10-15 mph wind, which meant there was a windchill to deal with. The staging area is simply a large open parking lot with port-a-potties, a medical tent, and baggage tents. I found a protected spot from the wind near a baggage tent and the generator for the tent, and there was a concrete block to sit on. I sat and watched all the late arriving runners trying to find a place to hide from the wind and stay warm.
Thankfully the race started on time. The first 4 miles runs around and then through EPCOT. The course was congested with runners to the point where I couldn’t see the ground in front of me, and two or three times runners just ahead of me started yelling: “ICE!” because the puddles on the course froze, so the pace was slower than normal.
After leaving EPCOT, the course runs on open highway to Magic Kingdom. During this stretch, I realized three things: a) I was so focused on watching my footing that I had not taken in any fluids b) the pace was so slow that qualifying for Boston was in jeopardy c) I was getting cold from the wind, which caused my knee to tighten-up a little. I decided that my hydration was most important and my knee was not ready for a faster pace, so qualifying for Boston was off the table.
At 9.5 miles the course enters Magic Kingdom, and I was back on my normal hydration schedule. I wasn’t cold from the wind anymore, but my knee was still tight. As I entered Future World, I decided it was time for a bathroom stop, and I knew where the heated rest rooms were in Future World. Just before leaving the rest room, the air hand dyer caught my eye. I hit the button and pulled my knee up to it for 10-15 seconds, and then got back on the course. The warm air helped loosen up my knee, and my pace improved.
As I left the park for the next long stretch of highway that lead to Animal Kingdom, the knee felt great, but my hands were cold from sweating through my gloves, so I changed gloves. Up to this point, I had only been using my sports drink from the hydration belt, so I took my first cup of water from a water stop. I had to take a glove off and scoop a hand full of ice out of the cup so I could drink it without choking on ice.
As I got to Animal Kingdom, I noticed that the sun had finally brought the temperature up (the marathon started in the dark at 5:40 am) and the wind had slowed to about 5 mph. By the time the course left the park at 15 miles, I was overheating, so it was time to take off and throw away the old fleece. As I unzipped my windbreaker to do so, I noticed that ice had accumulated on the right arm of the jack from drinking the cups of water with my right hand. The water resistant material had prevented the water reaching the fleece layer.
As I reached the 18 mile mark before Disney’s Hollywood Studios park, I finished the last of my sports drink, and I was sick of dealing with the ice in the cups from the water stops, so I stopped and filled a bottle with water and ran with it in my bear hands for a mile to melt the ice. Now my hands were cold from holding the bottle, so I switched back to the thermal gloves.
The last 3-4 miles of the course runs through Disney’s Hollywood Studios and finishes in Epcot next to Spaceship Earth (the big white ball). During these last miles, my biggest obstacle was the runners around me as they cramp-up and started walking. I even had one runner claps to the ground right in front of me with one mile to go, and I just barley missed going down with him. This is when I realized how important my decision was to run with a hydration belt. I think a lot of runners had trouble taking in the right amount of fluids due to the amount of ice in the water cups, and with the cold temperatures, I think runners were trying to be extra careful not to spill water on themselves, so they were not taking water as often. With the hydration belt, I didn’t have to worry about any of that and stayed hydrated.
I finished in 3 hours 29 minutes, which is 14 minutes slower than the time I needed for Boston, but I finished feeling strong and healthy. Overall it was a great challenge, and I was happy with performance. Maybe it will be warmer next year.