Women in Motion

August 2001
Newsletter

enhancing running performance

Vol 2. Issue 12


WOMEN IN MOTION NEWSLETTER - August 2001
Vol. 2, No. 12

 

This Month Contains:

~Article: Muscular Endurance

~From Around the 'Net

1. Watching your downhill stride
2. Broken Bones
3. Hills Build Strength
4. Older Bones
5. Fuel Up
6. Bounce
7. Run Stronger

~Words of Inspiration

~The Running Woman Board

~Report on the Calgary Marathon


Muscular Endurance

Muscular endurance is a health-related component of physical fitness. It is the ability of a skeletal muscle or group of muscles to continue contracting over a long period. When you have good muscular endurance you have the ability to resist fatigue while holding a position, carrying something for a long period of time, or repeating a movement without getting tired. As you train for muscular endurance, the muscles adapt as a result of changes in the slow-twitch fibers. The slow twitch fibres have a high capacity to use oxygen. They are called red fibres due to the large amount of blood supply found in them. They are slow to contract but have the ability to continue to contract over long periods of time.

Lifting heavy weights with low repetitions will develop strength. Dynamic muscular endurance is the opposite. You must do higher numbers of repetitions and with lower resistance. Dynamic muscle endurance is the muscle's ability to contract and relax repeatedly. An example of an exercise requiring dynamic endurance is the push-up. At some point, the muscles will become fatigued, and you will no longer be able to perform them. Examples of everyday activities requiring dynamic endurance are carrying groceries to your car, raking your yard, and playing several sets of tennis. Each of these activities requires some muscular strength, but they also require the muscle to repeat the movement over a period of time.

A muscle's ability to remain contracted for a long period of time is called static muscle endurance. It is usually measured by the length of time you can hold a body position. For example using the pushup, if we measure the length of time a person can remain in the flexed arm position, we are measuring static endurance. This means lowering the body in the pushup position until the arms are in a ninety-degree angle parallel to the floor and holding this position as long as possible. Some activities requiring static endurance include handstands and standing in line for hours for concert tickets or rides at the midway.

There are a wide variety of effective programs for developing muscular endurance. One of the most popular methods is circuit resistance training. This training takes place by moving from one station to the next, usually set up in a circle. At each station a different exercise is performed with high repetitions but low to moderate resistance. Fifteen seconds of rest is provided while changing stations. Approximately ten exercise stations are used, and the exerciser repeats the circuit two to three times.

Many people are interested in endurance exercises because they can take inches off of body measurements. Usually some strengthening and some changes in body contour occur. Also, endurance exercises speed up metabolism, and your body burns calories at a higher rate for several hours after the endurance exercise.

Cardiovascular endurance depends upon the efficiency of the heart muscle, circulatory system and respiratory system. Muscular endurance depends on the efficiency of the skeletal muscles and the nerves that control them. You can train for cardiovascular endurance by running, but if the leg muscles lack the muscular endurance to continue for more than a few minutes, you will not be able to run long enough to develop cardiovascular endurance.

It is also important to remember that the training program for muscular endurance should resemble the activity for which the endurance is needed. Performing muscular endurance exercises with upper body muscles will not help improve the endurance of the leg muscles. Probably the best training program is performing the sport skill repeatedly.


  • From Around the Net



1. Watching Your Downhill Stride

Downhill running pounds the feet, stresses the hamstrings, and overuses the quadriceps muscles. Usually, your legs will feel sore for two days after a bout of running downhill. Will shortening your stride length reduce muscle soreness? According to a study by the University of Wales, it won't. Researchers found that there wasn't any change in muscle damage that would affect soreness. However, they did find that people who ran downhill more often were less sore than those who did it infrequently. Your best bet to prepare your legs for a downhill race is to train for it.

2. Broken Bones

There is no need to worry about the effects of fast, high-impact training on your body. A new study has found that as you increase the force of impact there is not an added strain in the shinbone. The strain rate stays the same and keeps you from breaking your leg. Damage is most likely to occur when high impact exercising is suddenly introduced to a training program.

3. Hills Build Strength

Everyone can benefit from doing some hill accelerations. Hill training provides a gentle and effective transition between very slow running and the faster speed play needed by veteran marathoners for faster performance.  If you're just starting to run, you shouldn't jump into hill play. But those who've been running regularly for six months or more can benefit from the strength increase which only hill training can give. You don't have to have a time goal to benefit from play on the hills

4. Older Bones

Just when we thought that middle age was an excuse to slow down, we learn from a study in the British Medical Journal that higher-impact sports are key in reducing the risk of hip fractures in aging adults. In fact, high-impact exercise can cut men's risk by 33 percent and women's by 12 percent. Intensity wasn't part of the evaluation, so speed doesn't really matter -- it's more important just to get out there.


5.
Fuel Up

Eating the right food at the right time makes you a better runner. An athlete's body needs to have a carefully adjusted formula of high-test fuel to perform at its best during competition. That dietary formula often varies according to individual, but  there are some good rules of thumb for eating before competition. Finding the right food and timing your meal appropriately can make a big difference in both performance and comfort during a race.

6. Bounce

When in doubt, use less energy and stay lower to the ground, and you'll run smoother and quicker with better leg turnover. The energy spent in bouncing too high even by an inch is wasted - burned up in the air. The higher you lift yourself off the ground, the greater shock you have to absorb when landing and the longer it'll take for your feet and legs to recover from that run.

7. Run Stronger

Prolonged running greatly affects the pushing off force production in the quadriceps muscle. This is due to a breakdown of the mechanism that contracts the muscles, particularly in the fast-twitch muscle fibres. To improve muscle strength and performance in long-distance running focus on eccentric weight training at the gym. That is, concentrate on lowering the weight slowly.


The Running Woman Message Board

The Running Woman Message board continues to be active. It continues a steady pickup in volume, hopefully because of the interest in using running as part of a renewed lifestyle. Let's hope they connect with the benefits of running. We continue to offer advice to all posts. Thanks to all of you who have provided assistance to members old and new. Good Luck and Continued Running to all.
Gord


The Runner's Club

All clubs are closed and Women in Motion is in the process of transferring the email addresses of both the Runners Club  memberships to it's newsletter list and when this is complete, members will be given the choice of continuing to receive the monthly newsletters or of being removed from the email list.

Good Luck and Great Runs
Gord


Words of Inspiration

"There is a bond that links the 4:15 marathoner with the "god" who
finishes more than two hours earlier. They share a common energy that
frightens them and makes them 'sisters' under the sweatband." 

- Rich Segal, in his introduction to Richard Benyo's Masters of the Marathon

('sisters' substituted for original word 'brothers')


Report on 
the Calgary Stampede 
Roadeo Road Race

The Calgary Stampede Roadeo Road Race Marathon was held on Sunday, July 8th at 7:00 a.m. Hot, hot, hot. It was hot. Skies appeared a bit overcast at 6:00 am, but soon burned off and the temperature rose to 26 degrees C by 9:00 am and 29 by noon.

All top finishers were slower this year due to the heat and finished as follows:

Men:

Dennis Colburn -Edmonton 2:38:24

Ricardo Guerrero -Calgary 2:38:32

Phil Meagher -Ft. McMurray 2:39:15

We know all three of these gentlemen  and found out that Dennis and Ricardo talked all along the route trying to psych each other out by asking, "Are you getting tired yet?". Dennis sprinted past Ricardo when they turned towards the finish line.

They finished 8 seconds apart laughing. This win makes Dennis a two time winner of the marathon. Ricardo won in 1999. Phil has won Red Deer three times since 1999.

Females:

Colleen Catley -Calgary 3:05:38

Joanne Bozek -Yellowknife 3:08:30

Fariyal Samson -Calgary 3:12:57

Colleen is now a four time Stampede winner, last winning in 1997.  In 1997 Fariyal and Joanne had their places reversed.

There was a little controversy that surfaced. Joanne was not recorded at the first two checkpoints as having passed through them. It was later assumed that as she had her hair cut short  and was wearing a baseball cap, the official in charge, may have viewed her as a male and not recorded her number.

All in all, not a bad day as all elite runners ran slower due to the heat.

Fariyal picked up $250.00 for third place and a $50.00 gift certificate from Forzani's for also being first in her age group (30-34).

I mentioned to Colleen Catley, who lives in our community, that although I don't like to see someone finish ahead of Fariyal, it was great to see 'gray-hair-power' in action. Colleen had just turned 46.

Good Luck and Great Runs

Gord - Women in Motion

Looking Strong at the Finish Line

If you wish to have us feature a picture of you and an article about a road race you have enjoyed, contact us.


About This Newsletter

Experts - we are not. Information presented here is a collection of research with a taste of experience and opinion added for flavour. We don't get upset if someone disagrees with anything that has been said or written. In our experience with runners, it is difficult to get agreement on most anything. If it works for you, then it works.
Neither Women in Motion nor the author of this newsletter provides professional medical advice. The information in this newsletter is intended to help you better understand running issues. It is not intended to replace the advice of a physician. If you read something in the newsletter that contradicts what your physician tells you in any way, always follow your physician's advice.

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If you have any suggestions for topics or questions please email us. We would like to publish a monthly newsletter that reflects the interests of the female runner.
Gordon Samson, Editor
Women in Motion

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Women in Motion
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"Practice doesn't make perfect, perfect practice makes perfect."
-Fariyal Samson, B.PE, B.Ed
© Women in Motion


Women in Motion August 2001