Speedtest offers a network of over 11,000 hosted servers around the globe so that you always have testing options. At the start of a test, Speedtest automatically chooses a nearby server with a fast ping result to measure the maximum potential of your internet connection. You can always change the testing server to a different one than the default selection and we encourage testing to different servers to compare results.

By selecting a new server, you are changing the location or host of the server you are testing your internet connection against. In particular, many sites and streaming services may host their content on servers that are far away from your current location, which could translate to slower speeds and pings from those services.


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No matter the server you choose, all tests run on Speedtest reflect the speed of your connection from your current ISP or carrier. Testing to a server hosted by an ISP or carrier does not necessarily tell you how fast your connection would be if you were to sign up for their offered services.

Also, note that there are large variations in Wi-Fi and cellular radio quality and MIMO stream handling quality between devices. These variations can cause a device to deliver slower test results than another device or computer.

Gone are the days when a simple speed test sufficed to measure the performance of your internet connection. Speed Test Plus takes internet assessment to the next level by providing a holistic view of your online experience. While it does measure your upload and download speeds accurately, it goes far beyond these basic metrics.

However, the movements that are used within particular change-of-direction speed tests are wide and varied. As a result, numerous tests have been developed to assess change-of-direction speed in athletes from field-based sports. Some examples include the: 505 for rugby league (Gabbett et al., 2008) and soccer (Maio Alves et al., 2010) players; Illinois agility run (IAR, Figure 1) for rugby union (Jarvis et al., 2009) and soccer (Vescovi et al., 2006) players; T-test for soccer players (Sporis et al., 2010); pro-agility shuttle for American football (Sierer et al., 2008) and soccer (Vescovi et al., 2006) players; and 3-cone drill for American football (Sierer et al., 2008) and rugby league (Gabbett et al., 2008) players. While the value of these tests is widely acknowledged, there are some limitations. For instance, the 505 only features one simple cut, and may not be representative of the complex change- of-direction movement demands of many sports (Gabbett and Benton, 2009). In addition, while the pro-agility shuttle is specific to American football through the use of a 3- point stance starting position and lateral running (Sierer et al., 2008), the starting position adopted, and movement patterns required for this test may not make it relevant for many other field sports. There are also few change-of-direction speed tests that assess the ability to sharply change direction while running forwards (i.e. completing diagonal or zig-zag style cuts). This is pertinent, as the space used for movements within a change-of-direction speed assessment are important considerations for correctly administering a test (Metikos et al., 2003). A test that assesses linear acceleration, in addition to the ability to make several sharp cuts while continuing to sprint forwards over specific distances, has value for field sports.

The assessment that most likely tests this capacity is the IAR, as it involves acceleration, as well as directional changes when sprinting in a linear fashion (Figure 1). However, the IAR can last for approximately 14-18 s (Jarvis et al., 2009; Wilkinson et al., 2009; Vescovi and McGuigan, 2008). Potentially, this could result in metabolic limitations in the performance of a field sport athlete within this test (Vescovi and McGuigan, 2008). To a certain extent, the distances used during the IAR also seem to have been selected arbitrarily, without necessarily considering actual sprint distances covered during traditional field sport match-play, or the step kinematics produced by field sport athletes. Indeed, maximal sprint efforts during field sports tend to be short (i.e. 10 m or less) (Bangsbo et al., 1991; Dawson et al., 2004; Duthie et al., 2006), and rapid sprint acceleration efforts may not be sufficiently assessed within the IAR. Therefore, there is value in constructing a test of change-of-direction speed that incorporates field sport- specific distances, as well as demanding changes of direction.

The Change-of-Direction and Acceleration Test (CODAT) was designed to assess change-of-direction abilities while sprinting forwards, using data derived from research analyzing the time-motion of field sports. The structure of the test can be seen in Figure 2. The CODAT involves a straight 5-m sprint, followed by three 3-m sprints. These 3-m sprints are made at angles of 45 and 90. Following the third 3-m sprint, there is a straight 10-m sprint to the finish line. The 5-m and 10-m linear sprints were included as speed over these distances have been found to delineate between faster and slower field sport athletes (Lockie et al., 2011), as well as being important for overall linear acceleration (Spinks et al., 2007; Sporis et al., 2009). Furthermore, the inclusion of the 10-m sprint is based on research from the sports of rugby union (Docherty et al., 1988,; Duthie et al., 2006), Australian football (Dawson et al., 2004, Gray and Jenkins, 2010), and soccer (Bangsbo et al., 1991), that state that the approximate duration of sprints in these games is 2 s. Depending on the speed of the athlete, a 2-s sprint would equate to an approximate distance of 10 m (Duthie et al., 2006; Lockie et al., 2011).

Analysis of linear and change-of-direction speed generally involves recording data across a number of trials. Accurate data collection requires a consistency across these trials. The validity of a field test can be ascertained by comparing it with an established test, and determining whether it assesses components of fitness known to be important for performance (Wilkinson et al., 2009). Although there is no single, gold standard change-of-direction speed test, establishing a relationship between the CODAT and a recognized assessment will provide the new test with a point of context. Despite the potential metabolic limitations as a result of the extended test duration, the IAR has been previously shown to be a reliable assessment of change-of-direction speed, with a typical error of 1.8% (Wilkinson et al., 2009). However, due to the length of the test, the IAR may not sufficiently assess the shorter, change-of- direction speed demands that are emphasized in many field sports. The CODAT may be able to stress aspects of linear acceleration and change-of-direction speed specific to field sports, as well as highlighting the ability to sprint forwards while making sharp cuts that are often required during the match-play of field sports.

There were no significant differences in the mean CODAT times recorded from testing sessions 1 and 2, nor were there between-session differences for the other speed test times (Table 1). Previous research has found good reliability for measures of linear sprint performance (Cronin et al., 2007; Green et al., 2010; Oliver and Meyers, 2009), and measures of change-of-direction speed, including the IAR (Wilkinson et al., 2009). In keeping with these findings, acceptable ICCs (>0.70) and CVs (

Previous research has acknowledged the specificity of linear sprinting when compared to change-of-direction speed (Little and Williams, 2005; Young et al., 2001). Indeed, Little and Williams, 2005 found particularly low correlations (r = 0.35) between a 10-m sprint test, and a zig-zag test which utilized 3 turns at 100. However, the design of the CODAT includes linear 5-m and 10-m sprints in order to stress acceleration capacities. The inclusion of these straight sprints and how they assess linear acceleration can be viewed through the very large correlations between the CODAT and the 0-5 m (r = 0.76) and 0-10 m (r = 0.76) intervals of the 20-m sprint. Speed over a short distances (i.e. 5 m or less) are essential for effective acceleration, whether it is for a linear sprint (Cronin and Hansen, 2005; Lockie et al., 2011), or following a change of direction (Wheeler and Sayers, 2010). The relationships established between the CODAT, and the IAR and short sprint intervals, specifies that this test does indeed assess both linear acceleration and change-of-direction capabilities. To further document whether both the ability to accelerate, and the ability to change direction whilst sprinting, are both appropriately assessed within the CODAT, it would be pertinent to measure split times within the CODAT, as well as time to make the direction changes and cuts. In addition, as has been conducted for linear acceleration (Lockie et al., 2011), it would be of benefit to detail the stance kinetics associated the direction changes in the CODAT.

So, I have home internet service that is supposed to be 1 Gigabit up and down(fiber) and I've been struggling with it on and off for well over a month(much to my wife's chagrine! :) ). I've tried 2 different wireless routers, a Netgear Nighthawk and a Linksys EA8300, both with gigabit ports for WAN and LAN. Now, I was trying to use the Netgear router for a couple of months as my previous isp had told me that in their tests, Linksys routers had never been consistent in getting optimal speeds in their tests. I bought and implemeted the Netgear router, but really didn't see any noticeable improvements in speeds and found out I really missed that 'Speed test' feature available on the Linksys' web admin page. However, the speeds that those tests do show on the Linksys are often well short of our 'contract' Gigabit speeds. I've noticed, for example, that it says on the page when running one of those speedtests on the router that it is testing speeds to and from "the Speed Check Servers"(Ican take a screenshot and either post it here(if someone tells me how) or email it to you(either way - but, just if 'needed' and 'requested' :) ) Can anyone tell me what speed check servers it tests with and if those "servers" support 1Gigabit speeds? ff782bc1db

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