## Calculating Stride Length & Stride Frequency

The following exercise explains how you can calculate the stride length and stride frequency of a runner on a treadmill.

Consider first some definitions of terms:

Stride length: Stride Length corresponds to the horizontal distance between the location of a foot at one point in time (usually the first point of contact with the ground)to the same point of the same foot at the next occurrence of the selected position in the running cycle.

Step: A step corresponds to the horizontal distance between the location of a foot at one point in time (usually the first point of contact with the ground) to the same point of the contra-lateral foot at the next occurrence of the selected position in the running cycle. In essence two steps constitute a stride.

Stride Frequency: Stride frequency corresponds to the number of strides that are completed in a specified time period. The standard unit of measurement is the hertz (Hz) which records the number of cycles per second. Step frequency is the equivalent measure using a step (as defined above) as the core parameter.

Timecode: Time code records the passage of time via the use of a sequence of pairs of numbers separated by colons. e.g. 00:01:15:32. The first pair of numbers represents the number of hours, the second pair the number of minutes, the third pair the number of seconds and the last pair the number of hundredths of a second.

The speed of a runner can be defined as being equal to Stride Length × Stride Frequency

Given the relationship between running velocity, stride length and stride frequency plus a video record (with timecode) of a runner on a treadmill it is a straight forward matter to calculate values for the stride length and stride frequency of a runner at a known speed.

## Resveratrol Health Benefits – What Are They? Is Resveratrol Really Worth Taking?

There has been a lot of talk lately about Resveratrol and it’s health benefits. We’ve all heard the about the studies claiming that red wine is actually good for us and beneficial to our health. In this article, I will describe the known benefits of Resveratrol that I have uncovered after my research and use of the supplement.

Resveratrol is an antioxidant found in the skin of red grapes. The purpose of this antioxidant is to protect the core of the grape from possible damage caused by the environment and several other factors. It turns out that this anti oxidant reacts the same way to the cells of our bodies as it does the the core of the grape.

When the cells in our bodies are coated with this antioxidant, it takes the much less effort to have the same results.

Weight Loss.

When we eat a heavy meal, usually what happens is that our body does not have enough energy to process all the food in the time we would like. So what usually happens is that our body will store the excess of calories instead of processing them. This is when we gain weight.

Increased Energy.

As soon as the body has time to get back to work processing those unwanted calories, it does. This is the most common reason for a lack of energy.

Reduced Risk Of Disease.

The body is self healing. If we get cut or bruised, the body heals itself. The same thing happens when we get a disease or sickness. The only reason these things do not heal themselves is because the our body cells are not strong enough.

These are the most commonly talked about Resveratrol health benefits.

## Travel Insurance Quotes – Make Sure You Understand Your Choices

Before heading out to your next vacation, you need to stop and think about the consequences involved with traveling.  While people normally tend to be excited over making vacation plans, they also need to realize that accidents can happen and illnesses may occur. Don’t forget about the dangers and risks involved-make sure you add getting travel insurance quotes to your plans.

There are many different companies to choose from, and the internet is a great place to find out about these companies and to get travel insurance quotes from them.  However, you shouldn’t just automatically go with the first cheap policy you come across.  This is because there are some companies that exaggerate their worth.

Take the time to read all the package details, and make sure you understand exactly what each package offers when comparing travel insurance quotes.  Check to see what all insurance agencies each company is affiliated with.  Obviously, the most reliable and trustworthy companies are the ones affiliated with major insurance agencies.

When you’re presented with travel insurance quotes that suit your preferences and needs, read reviews about the companies and packages to make sure that your investment will be sound.  Sometimes other travelers will share horror stories about bad insurance policies as a way to warn others not to make the same mistakes they did.  Read their reviews and take their advice into consideration.

All of this may seem like a hassle, and you may find yourself frustrated when evaluating different travel insurance quotes.  The decision you make, though, could very well save your life.  Your finances will also be protected, so you’ll be able to travel at ease without having to worry so much about your luggage and money.

## How to Make Your Article Marketing Work For You

Article marketing works. It is a medium you can use to market products, whether your own products or affiliate products. It simply involves writing articles which make people want to come to your site or to your landing page.

Now before you start getting excited, I have to tell you that you have to give value first before people would want to purchase something from you. You just don’t put together one or two crappy articles all in the name of getting traffic. No!

That’s just plain wrong.

You have to put the interest of your customers at heart first. This reminds me of the Law of Compensation which states that ‘The amount of money you are paid will depend on the need for what you do, your ability to do it, and the difficulty in replacing you.’

Now what you want to create when you write your articles is what is called CURIOSITY. You want them to WANT MORE of what you have given them.

And they can only want more of what you have given if what you have given is valuable. So the idea is to give them a taste of the delicious meal you’ve prepared so that they will be the ones ordering more.

Now how do you do that? You give them useful but incomplete information. Yeah that’s how you do it. Now that you’ve given them a gift (something you gave them for free), they would trust you as an expert and someone who is willing to add value to their lives first, not just telling them to buy something from you on the first meeting.

You have to give before you receive. Give and it will come back to you. That is the way it is. That’s the Law of Sowing and Reaping.

So when you give a very informative article about how to solve a problem and you tell them that they can get MORE information if they go to your website, they will go there excitedly. This is because they now trust you as an expert and someone who is willing to be generous with their information before asking for something in return.

Examples of information you can write an article about are ‘how to make more money in less time’, ‘how to import cars without stress’, ‘how to get a visa without going to the embassy’, etc

Keep Writing Articles

DO NOT ever quit. Don’t just stop writing articles because after a month of writing there is no traffic to your site. You have to keep on believing you’ll succeed before you have your breakthrough. You have to stick to it. Keep on writing and adding value to lives. Share the information you have. The rewards will come if you don’t give up.

Write Regularly

Don’t write articles once in a blue moon and expect instant results. Write at regular intervals. This helps you in the following ways:

1) Search engines love sites that are content-rich and are always being updated at regular intervals. It helps you rank high in the search results.

2) It motivates people who have been to your site keep coming back. I mean, why should they come back if they keep seeing the same old articles they’ve read a hundred times on your site?

So what is the summary of the above point? It is automation. Article marketing automates the internet marketing business. It automates your traffic. That is why it’s even good to contribute your articles to article directories like EzineArticles which ranks high in terms of traffic on Alexa. Once your articles are there, they are there for life and they bring residual traffic to you.