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.


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Ultrasonic Sensors – Distinct Devices and Different Uses

Ultrasonic sensors are devices that are utilized to detect the presence of foreign items. These can discreetly be put in courtyards and in houses to discover the presence of moving objects alien to the surroundings. They work at very high frequencies that are way beyond human hearing.

Ultrasonic detectors depend highly upon sound waves or radio sounds so as to translate the echoes and appraise specific attributes of their targets. They are frequently known as transceivers particularly when they function both in the receiving and sending of audio waves similar to the functions of the sonar or even the radar. They function as frequency waves of sounds that are created and assessed. The detector interprets the distance of an object by calculating the intervals at which signals are received.

Ultrasonic sensors have many other uses besides interpretation of distance. Among them is to get the measurement of wind direction or speed depending on the anemometer technology. Air and water speed, as well as tank fullness, can be measured as well. Multiple detectors are also used in the procedure. Ultrasonography, burglar alarms and humidifiers depend considerably upon those detectors also. Look at some of the devices found under this product category. Learn more about a few of it’s applications also.

Transducers and sensors.

Ultrasonic transducers are devices that are utilized to convert energy into sound waves. The most common examples are piezoelectric transducers. These use crystals which have the capacity to modify sizes especially when a particular quantity of voltage is used. It functions with the use of an alternating current thus creating the crystals oscillate during high frequencies. As these frequencies are generated, the sound waves increase.

Detectors are highly important instruments in the detection of ultrasound too. Systems may search for separate transmitters and recipients while some use both inside the piezoelectric transceiver. Other procedures that are thought in ultrasonic sensors are capacitive actuation and magnetostriction.

Application in medicine and other industries.

These sensors are popular in the medical field especially in the area of ultrasonography. Medical transducers have various sizes and shapes and are used to take images of various body components. The transducer is used in different ways: it might be inserted in the body or just used on the surface of the body.

In other areas, ultrasonic detectors work well with process plants and automated factories. On and off electronic outputs for detectors are used to discover object presence also. Some cleanup devices also use detectors. These gadgets function when the transducer is connected to a stainless steel bowl. Square waves can also be applied to exude energy on the liquid either in the form of isopropanol or water.

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How Web Marketing and Ads Help Grow Business

Have you considered marketing your business online? SEO, content writing, social media campaigns, and online ads are some of the tactics that a business may need to deploy and gain in several different ways, helping promote product offerings.

Here are some of the most important benefits of online marketing and advertising to businesses:

Expansion of Your Online Market

Billions of people visit the internet every day, especially social media and Google. That is a massive number, and if you wish to direct some of these visits to your business website, you must market and advertise it extensively using web-based media. It’s the surest approach to boosting your online visibility and expanding your web customer-base.


Internet marketing is more cost-effective than classic approaches like advertising on television or print media. For example, SEO is effective because it targets a specific audience that’s interested in the product on sale. This approach is critical to the prevention of marketing funds wastage.

Consider the fact that around 3.5 billion queries are run on Google each day. You may harness SEO and increase the search engine visibility of your web enterprise, increasing the chances of being found via Google if you offer the answers or solutions being sought. This is considered cost-effective because your online marketing efforts are being focused on people looking for something you have, rather than a general audience watching news or a favorite TV show.

Better Return on Investment

When the people you’re targeting via social media ads or SEO find your website and perform a desired action, such as buy, you’re registering a good return on investment. As more traffic and conversions are achieved, you get good value for your online marketing budget.

Reliable Performance Metrics

In case you’ve advertised via TV, newspapers, and billboards simultaneously before, you realize how tricky it is to link each such platform to its respective share of the buys, questions, orders, or registrations your business netted in a particular marketing campaign. That’d be tricky because most such results cannot always be traced back to the advertising platform.

Nonetheless, online marketing is better since it comes with accurate analytical instruments that marketers deploy to monitor the performance of every media involved. For instance, you may utilize such analysis to identify the traffic reaching your site from Google, Facebook, Twitter, or email campaigns. Additionally, you may refine your evaluations and discover the Google phrasing the highest converting searches used before reaching your company website. With the right answers, you can quickly identify the best/worst-performing components of your entire online marketing program so you can implement appropriate remedial measures.

Take advantage of online marketing and improve your SERP rankings, expanding your market-base.

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Advantages of Selling Your Property through Real Estate Agents.

For decades now, people have been on the lookout to ensure that they invest in real estate business. For you to get the right property, it is important that you seek the right advice. It is therefore important to ensure that you hire the right real estate company for your property purchase. Having confidence in your real estate professional will be important if you want to purchase property in in today’s Myrtle Beach Real estate. Selecting the ideal real estate agent for your property will ensure that you get the desired results that you are looking for. You will be able to sell your house fast with the help of your real estate agent. With the help of the right real estate agent, you will be able to get some good property in Myrtle Beach Oceanfront Condos. It is guaranteed that you will get the best offers for your house.

Despite the size of the house that you need, real estate agents will help you get one. Real estate agents will ensure that you get a house which will suit your budget needs. In order to sell your property fast in Myrtle Beach, it is crucial that you seek the services of an experienced real estate agent who will provide you with the right information about the market available in your property. It is important therefore that you choose the most experienced realtor who has a proven track record. The realtor that you choose to help in the sale of your property should provide you with the information as well as the expertise to sell your home. For you to have an access to bestsellers, contacting real estate agents will guarantee that you get them with the right marketing strategies. Using the right marketing strategies through the help of realtors will ensure that your house sells fast since most home buyers will always start their search online.

Since most home buyers will always search online, most of these real estate agents will always list your house in their website to ensure that they hit larger market group. Selling your property fast, effectively as well as at a high price will demand that you contact the right real estate agents. Reaching out to the real estate agents will ensure that you get personalized services to suit your needs. This real agent will help you in preparing your home for sale as well as provides you with all the information that you need. You are assured that they will also they will help you in making your property standout from the other home sellers. For your property to sell fast, it is crucial that you involve the services of a real estate agent.

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Tips on How to Look Presentable Without Pushing Too Much Effort

People as we are, the need to be presentable is something that we need on a daily basis. Regardless what the occasion may be, we want to look the best as we can.

It’s the fact that there are other people just find being fashionable to be a part of their day to day lives and those who struggle at it. Fortunately, the following tips we have should give you a heads up and an advantage on how to look fashionable regardless the occasion.

Take the advantage and learn from the following to ensure you look better and feel confident.

The key to being presentable isn’t just about what clothes you wear. It’s easy to think that you need the right clothing to look presentable but there also are small details that matter greatly. Among the most important things you need to consider is to wear the right Roma Designer Jewlery. Matching the right accessories to your clothes has a great impact in general. You may browse among these from this website for an easy access.

It may seem that clothes are evolving through the years but still, jewelry stays the way they are and just can’t go out of fashion. You can find a number of these jewelry companies and among the most popular is Roma italian designer jewelry. It’s the fact that they have been doing this for many years that allows you to choose one that specifically meets your needs. Remember that the right accessory should complement the overall outfit and not to take the highlights from it.

Aside from wearing the right accessories, it’s also important that you need to wear other accessories such as a Roma Designer Jewlery glass or any glasses in general. Making sure that you wear them right is the key to even improve your looks more.

Don’t forget that you need to also wear according to your personality. While it’s possible for you to choose from a number of clothing, making sure you pair them with the right Roma Designer Jewlery is what makes you look more presentable. If you wish to browse through all the options you could choose from, it is imperative that you need to go over the list and choose one that meets your specifics.

The key to being presentable is to make sure that you are wearing the right clothing and accessories. If you wish to look sharp, then this should give you a heads up.

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Techniques for Locating Properties to Rent

A property that is best for rental is tough to get. There are many tasks involved which may require one to spare adequate time to carry out the functions. Preparation to move to the new property is among the functions that come with renting a new property. Finding the property to rent is currently possible and comfortable with one planning beforehand. Your moving day need to come after you have located the best rental property. Getting a perfect place to rent is possible upon getting a new place among all the properties available in the current market. Efforts of finding the best rental property are quite comfortable when one put in mind a number of these tips.

Setting your budget is one thing that individuals need to prioritize. You need to consider renting a property that is affordable. Failure to make appropriate arrangements brings about one not being able to rent the best property. Best lifestyle decisions in one’s life are reached by setting a budget. It is important one analyze the current expenses and the whole amount you spend on a monthly basis. There is an order of preference that one needs to choose when paying bills. It is important to analyze the monthly salary before renting a property.

Secondly, it is vital for one to consider surfing the internet in search of properties to rent. Getting in touch with the best rental property will require one to surf the web. Best platform to get a list of rental properties is the internet. Online search is vital as it helps in simplifying your search process. Rental property is easily located by using the internet search. Setting price parameters enable clients to get rental property faster. Online search is beneficial when it comes to locating the best rental property. Checking out various locations is beneficial when finding the rental property. The internet is the best way to get rental properties that suit you.

Getting a wide arty of rental properties to select is possible through online search. The good thing with internet searching rental property via the internet is the fact that one has a variety of options to select. Availability of multiple choices leads one to get the Panama rentals. Making physical visits to the property location are a process made possible by selecting the best option. Trust and confidence in the kind of rental property to pick is possible contacting your top choices. Renting a property is a process accomplished by looking out any damage. It is possible to keep more funds if you are working from the house. Saving more money, in the long run, is possible through increasing the production levels.

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Why It Is Important to Look for the Right Qualities from a Home Truck Containers Company.

In the world today, the modern technology is taking place in all parts including the vacations. Thus, it is very common to find so many companies hiring customers their home containers for their vacation needs. You are not limited to live the in home containers because they are affordable, and you can still keep paying for your rental. This is because they will still need to hire an affordable home truck container from a reliable company. However, the problem comes in when it is time to hire the companies. The companies are so many. You might think you have the best firm but the issue might arise when problems arise as time goes by. Using the hacks give in this article is the only way you can be certain you have hired the correct container firm.

Looking at a company’s inventory is a requirement you should never skip to look up to. You cannot know if the company you are hiring is the correct one if you do not know its background. You need a loyal company which is ready to tell when things are not going to work for you and even what size of the container which they do not have. Many firms with many years of existence will never deliver the wrong services because they care about their loyal customer.

Make sure that the provider has known all the need to have at hand so that you get what you had expected. Make sure the company provider knows what will fit you and the company you are going to have during your stay in the container so that heshe can assign you the right size. Also, you should feed the estimators with the correct information. Note that when things go wrong, you are the one who is going to be affected. Also, count everyone you will be traveling with to avoid being congested inside the truck container.

Paying huge deposits is a red sign you need to note. You should always think that you are not the only one who needs the services because some of them will hesitate to ask you for extra money for deposits and it is not right. For that reason, you always should ensure a company has the same name it has been using when it first started. Switching of the company username could be out of selfish reasons but do not the best thing to tell about that is asking about how long it took before the changing took place. References work well when discovering the reputation a company has had.

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Tips for Finding the Best Ice cream Restaurant in Your City.

Life is beautiful but it is more beautiful when you are doing the things that you love doing, traveling to the places that you love, and eating all the kinds of things that make you happy, you will feel more energized and get more passionate about life. It is important for you to identify that restaurant or store where you will be able to find the kind of ice creams which you love, where you’ll get all the flavours and at all times, and at the right prices. There are stores and restaurants which sell ice creams in your city and it might be a bit challenging for you to identify the right one, in this article we are going to discuss some of them tips which will help you to fight the best ice cream restaurants and stores in your city.

Ask around.
Before you can go to any restaurant to buy an ice cream it is the best that you ask from the people who are around you to refer you to that restaurant where you will be able to get the best ice creams in the city. Ask from your friends at relatives to refer you to that restaurant in the city where they go to take their ice creams, you can even go together with them, buy ice creams there and get to know whether they are the best one so that you can also be going to the restaurant as well. The best thing about asking the people who are around you is that before you can go to buy the ice cream you will be able to ask more details, and more so they will never refer you to a restaurant where they have never been before.

Look on the internet.
With the availability of the internet today you can be able to search for anything that you want to buy it from the comfort of your home. Here when you are searching for that restaurant in your city which sells ice cream it is important that you search for it on the internet where you will find a number of them. The fact is that you are looking for that restaurant which offers the best services, sell the best ice creams in terms of flavours and freshness, and also a restaurant that has the best prices in the city. It is therefore important for you to narrow your search and pick a few of those restaurants so that you can move to their website, where you’ll be able to see more details about them, you will also be able to go through the customers reviews and from there you can select that restaurant where you feel you’ll get the best ice cream in the city.

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An Easy Guide on Piano Lessons for Beginners

Most musical instructors face challenges when teaching piano lessons to beginners. Such work has to be started from the basic things, especially if the students have no idea about the kind of the musical instrument they are playing. For fast learner students, you will realize that the task will be very simple. However, you will have different types of students, some of which they may face a lot of problems to do even the simple things.

However, with the best guide, students can learn piano without any teacher’s help. Students can do the lessons on their own and gauge their understanding by watching online videos. The guide below will help you if you are learning to play piano on your own.

You should get the right piano for you to begin the lessons well. If you can buy one, it is the best, but if you can’t, you should ensure that you seek one. When you have your piano, you will get to learn every time you have an opportunity.

With a piano around, it is best, to begin with, personal orientation using the easiest lessons. Ensure that you go through the most basic concepts, and fundamentals of music that must be at the finger- tips of all students who desire to play musical instruments. There are so many such lessons online, and you can just get them or obtain books that discuss the concepts. There are some things that you must know, and you will need to read piano books. Such basic knowledge on the staff, note and other terms used in music are very critical in the learning process.

In piano learning, it is important to structurally place yourself in a nice position and posture to be able to play a keyboard well. When you have sat correctly, you should then place your fingers and hands well. You should ensure that you know how to do that for you to proceed well.

The next step should be to learn how to play basic chords and how your hands should be as you play the chords. You will require to read notes and watch videos online that will guide you a lot on the chords and how to play them. You can then combine three notes that you have learned and practice to play the piano. From your piano books, you can pick some songs and set yourself going.

For you to perfect what you are learning, you should ensure that you are on a constant practice. As you will keep doing the practice, you will finally get the best results as far as skills and finger placements are concern.

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Aspects To Consider Before Buying Security Products For Retailers

A retailer is a person who sells items directly to the client. Majority of these items are sold in retail stores. There have been cases of shop lifting in the stores and that is why most of them have security gadgets. It is important that before you buy the security products that you evaluate some factors.

Make sure that you know the service provider. There are some who sell counterfeit products which always looks similar with the original one.

Subsequently you should have confidence in the service provider before you procure from them.

Evaluate if you would want to buy new or used security products. The news one in most cases are more expensive than the used one. Verify that the used gadget is still in a good state. Confirm that the individual you purchasing from is authorized to sell the products. Instances where you might buy a product that is not of good quality are avoided.

Make sure that you know your needs. Remembering that there more security products to utilize in a retail shop. Think why you want the security product, this will assist you understand which will of essence to your retail store.

It is crucial to have a budget. Budgets aids to prevent situations where you possibly purchase a product that you had not anticipated for. Be aware of the cost you will incur from using the various service providers. This is because most of them do not have similar prices. This in turn makes it easier for one to buy the products without straining your finances.

The quality of the security products should be good. It can be frustrating if the product keeps on malfunctioning anytime you try to use it. The customer is guaranteed that id the nature of the gadget is good then it is durable meaning it has a longer lifespan. Since you will not have to frequently replace the security product then money is saved.

Know how long the service provider has been in service. This is because it is best that you use one that has been in service for more than five years. Better strategies and more experience is gained as time goes by. A client is unsure of the type of service to expect from a company that has just opened.

Ensure that is guarantee offered. The gadgets bought might have a problem so instead of purchasing a new one you could return it to the manufacturer and they will give you another one. Identify the time the guarantee will last and know of the terms offered.

The organization should be certified. The client is guaranteed that when they use the licensed service that their activities are legal.

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