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Rotational and Linear Aspects of Sprinting

  • johnmakell
  • Mar 30, 2024
  • 4 min read

Updated: Jun 7

Although there are definitely linear aspects to sprinting—i.e., the athlete is trying to travel a straight line up the track from point A to point B—and side sway running actions are inefficient, it is important to understand that running features rotational actions that counterbalance one another. Dan Pfaff explains in this video how the hips and shoulders coordinate in this way. How the athletes perceive the rotation is an important part of their ability to continue to effectively apply force and elevate appropriately as the feet spend less and less time on the ground.


After seeing how fast Ben Johnson's start and initial acceleration was at about the 12 second mark of this video, go to the 3 minute and 46 second mark and watch for about a minute for a great example of how power is generated via internal and external pelvic rotation. FYI - In my "Three-Point and Four-Point Start" blog I'll address the movement prior to the gun that Ben was allowed to do (illegal in my opinion).


A major theme of this website is that I feel that this and other aspects are maximized through good positioning, coordination, and effective movement during the starting steps as the athlete heads up the track. It is also important to understand that the time the feet spend on the ground gets less and less as the acceleration continues, and the task is to still be able to deliver significant forces to the ground although the strides come through really fast, and the feet are on the ground for only brief moments.


Torque


Rotation is related to torque, and as I explained in my "First Three Steps" blog, gravity is an important element that is related to torque as the athlete is brought down to the ground for each stride. A bottom line in my mind is that this is part of what an athlete utilizes to move through space efficiently and effectively, and if not channeled effectively, this rotation can help lead to the athlete to stumble or even fall on his/her face early in the race, or the athlete can choose to over-react by standing up when he/she should be effectively driving. Torque represents a valuable component of the generation and utilization of momentum.


An aspect that helps to successfully deal with rotation early on in the race is that the feet spend a longer time on the ground during the start and initial acceleration, but as velocity increases and the feet spend less and less time on the ground, there isn't the time to successfully deal with this rotation if the athlete chooses to continue hanging forward. That is why after 15 meters or so, velocity should already be so high, that the athlete should avoid inappropriately leaning forward, because of the little time to compensate for this rotation.


Very Important Aspect of Rotation and Appropriate Force Application


During upright sprinting the "build-up of pretension" in the hamstrings during the scissoring action of the legs facilitates an effective rotation described in this lengthy quote from the book Running. "During the scissor-like motion of the legs during the floating phase, developing forces tilt the pelvis backward and forward: the hamstrings and abdominal muscles tilt the pelvis backward, while the iliopsoas on the swing leg side tilts it forward. As the swing leg oscillates outward, the hamstrings together with the abdominal muscles exert a force that tilts the pelvis backward. The iliopsoas can slow this backward tilt somewhat, thus causing pre-stretch in the hamstrings of the front leg. In this way, the pelvis works like a lever so that energy can be transferred from the trailing to the leading leg."


During upright sprinting, the rotation described above can help facilitate a variation in the posture of the trunk from being very slightly forward to very slightly backward. This movement is not to be exaggerated. Examples of these movements being done effectively can be seen in this video.


Final Word


Most of any race is spent in an upright position. Skillful management of the various rotational and linear aspects during the start and initial acceleration makes it easier to do so when upright. As has been said in my other blogs, each phase of the sprint should flow into the one that follows, with a primary aspect being achieving body positions that lead to maximal performance. This is demonstrated in this very brief Tellez video.


As it pertains to rotation, a lot of coaches mistakenly feel that all rotational movements are signs of inefficiency, thinking that they create side to side movement down the track. The movements of the hips and shoulders are to counterbalance each other as Dan Pfaff explained in his video I included in the first paragraph above, and once again, despite all the technical aspects coaches can consider presenting their athletes with, the objective is for the athlete to simply accomplish moving effectively and efficiently up the track. Various reflexes, reactions to actions, etc..., also contribute to successful movement up the track, so coaches need to understand the value of allowing the athlete to gain experience to discover what works well for him/her within certain fundamental parameters.

 
 
 

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Runners Taking Off

               The Start Doctor

The start of a race can set the table for success throughout the rest of the race. The top speed (max velocity) attained in the race is of the utmost importance, but the skill of executing and managing various aspects during the start and initial acceleration, not only impacts performance during the early portion of the race but also can put the athlete in position to maximize the quality and effectiveness of the top speed. Because of this, sprinters in the sport of track and field may significantly underachieve when they fail to skillfully utilize the starting blocks. There must be an effective teaching strategy because using starting blocks can provide quite a challenge for athletes of all stages of maturity and ability levels. My suggestion is to focus sufficient attention on skillfully starting and accelerating from various positions without blocks before adding starting blocks. Pushing off from the ground obviously involves some differences when compared to starting from the angled platform that the starting blocks provide. One important difference is that when loading the legs against starting blocks, there is more of a need to learn to distribute body weight to keep too much weight from being on the hands. Add to this  the need for the athlete to position the body to best launch up the track in a manner that lends itself to continuing effectively up the track, and you have quite a challenge. The difficulty of this can lead many sprinters to settle on unsound methods to distribute the weight and to get up the track effectively. Methods learned to start effectively without blocks can provide steppingstones toward effective starting block use for all ability levels. Last summer, I took part in an Apprentice Coaches Program where some world class athletes were preparing for the Olympic Trials, and it was pretty obvious to me that even some of those athletes were deficient in some fundamentals of starting. My opinion was validated by one of the instructors, who happens to be a leading international authority. Read on for the learning progression that I use to develop fundamentally sound starting block use. This teaching method can also be used to enhance the abilities of starting, stopping, changing direction, and achieving top speed effectively during other sports where prowess in these areas is important.

Ironically

This is not to say that athletes need to spend an inordinate amount of time throughout the year practicing starts. As a matter of fact, in the sport of track, many training runs, are not done by starting and accelerating with maximum explosiveness in order to save the legs from excessive wear and tear, and as I said above, it is the top speed (max velocity), that is the primary consideration. In my opinion this includes the top speed attained in sub max training runs and runs where the athletes choose to not accelerate as explosively. In these scenarios the athlete can still demonstrate the ability to position and prepare to react and respond effectively and coordinate body movements in order to get up the track effectively at the various speeds and intensities, with the idea being for the athlete to develop the ability to maximize running efficiency and effectiveness at any pace. I also maintain that even when moving into starts, ie; walking, with a roll, hop, etc..., that these reps can still support the development of body positioning and control. When in sufficient condition, and during an appropriate time in the training period, it of course, is beneficial to get reps starting with maximum explosiveness and moving toward and into top speeds in a similar manner that the athlete chooses to employ during competitions. Doing so allows the athlete the opportunity to master operating with the body and its parts moving through positions, angles, paths, trajectories and applying force in ways that correspond with competitive intensities. When not in sufficient condition, however; repeated intense sprinting can lead to injury. Check out my blogs for my take on maximizing sprint success.

Some Limiting Factors 

Various limiting factors are critical components. Some of these factors are strength, flexibility, mechanics, coordination, and  conditioning. Much of the information in my blogs pertain to mechanics, but I hope to make it clear how technical aspects are supported by various physical abilities that often go hand in hand with these abilities. I believe it is important for coaches to attempt to assess their athletes early on to try to identify positive physical qualities, as well what mechanics are already being executed skillfully, along with those which are not. This should allow the coach(es) to individualize instruction to some degree. As coaches, we love to find athletes with a lot of raw ability, but it takes a lot of skill for the coach to effectively nurture those abilities and help to effectively steer the athlete. When dealing with youths, age-appropriateness is an important consideration. Coaches need to be able to recognize various limitations athletes may have at the varying levels of maturity and developmental stages, as they are trying to accomplish various tasks. Read my blogs for my take on these matters. This very importantly includes recognizing and understanding elite level performances, and identifying areas that even the elite athletes may need to improve upon as well!

Flexibility

It is important not to underestimate the importance of flexibility. For child athletes, their flexibility is most often very impressive, but with maturity, as the muscles and tendons strengthen, flexibility inevitably lessens. According to Ralph Mann (rest his soul)," The biggest non-genetic factor affecting flexibility, however, is neglect." He explained the critical role flexibility plays, stating, "If a sprinter is not flexible enough in their pelvic area to shift their hips forward at Touchdown, then they are forced to "sit back" at foot strike. This position not only shifts the body center back (insuring more braking forces) but also presents a "soft" (less rigid) body position which leads to time consuming hip flexion, as well as requiring the hips to move through a longer range of motion (both time and energy wasteful).

There are varying degrees of flexibility and ranges of motion demonstrated by successful sprinters. Understanding what Mann explained can help coaches identify various methods of compensation athletes may use, as well as help coaches consider strategies to address root causes of various movement issues. Left unaddressed, some issues not only can hamper performance, but also can lead to injury. It is important to realize that athletes at all levels exhibit compensatory actions related to body structure/development, previous injuries, etc... Although I certainly am not an expert in this area, I hope to provide helpful information in some of my blogs. As I stated above, I participated in the Altis Apprentice Coach Program this past summer in Atlanta, and it made a huge impression upon me when I saw the attention the athletes got on the therapy tables, getting massages and other forms of body work meant to address various issues that if untreated, could have been problematic. 

Technique

In my mind, gaining an understanding of the movements described in the above Mann quote, and recognizing how this impacts the athlete's movement up the track from the start of the race, through initial acceleration and top speed is foundational. Mann also describes two different factions in track in regard to starting. One he says, "advocates a powerful, explosive start that seeks to jump out and make steps as long as possible (Jump Start), and one that believes that the action should be a quick turnover action that makes the steps as short as possible (Shuffle Start)." He said that both starts can be effective. I say this to recognize that there is a bandwidth of acceptability, and I'm sure that many athletes that start effectively fall somewhere between Mann's two descriptions. In some of my other blogs I'll get more into the differences Mann points out in regard to the two factions.

In addition, Adarian Barr describes some key aspects of movement in this video. He references gravity and the two falls an athlete should experience while running. A coach having a good understanding of this can use appropriate cues and wording to help the athlete to adopt the proper perspective of how this impacts each stage of the race. In my experiences, less than skillful wording and/or a coach's misunderstanding of subject matter can be counterproductive. Sometimes resulting in the athlete slowing down movements in an attempt to be aware of what the coach is describing. Coaches often are best served by watching and assessing the athletes and choosing to say very little or nothing at all. Because sprinting, ideally, occurs with a very high stride rate, I often qualify what I'm telling my athletes by telling them that they will best work things out when competing with others, and I add that at times they may say to themselves, "wow, I felt what coach was talking about that time", but again, things should happen fast through sufficient ranges of motion, with an effective use of power, timing and rhythm.

Strength/Conditioning

There is obviously a significant genetic component to strength, but a major challenge for the coach is to adequately address the static, dynamic, and elastic strength needs, as well as getting the athlete to apply these abilities effectively to help maximize performances when sprinting. Deficiencies in the needed specific power and strength can manifest themselves as collapsing hips, knees and/or ankles during movement up the track. As with flexibility, being able to identify various functional strength needs can be very valuable, and as with flexibility, various functional strength aspects support good technique, ie; joint stability. My "Physical Development" blog covers this as well as conditioning

Important Aspects of Starting Positions Are Shared to Some Degree 

 

Learning to position and balance the body, and coordinate movements to react quickly and to get out and up the track effectively includes recruiting key muscle groups and utilizing reflexes to start explosively while using good ranges of motion. Moving up the track with good body positions includes applying forces effectively and having the coordination, timing, rhythm and general ability to effectively channel the various forces that are acting on the body. In my mind, learning to do this from the "standing start" position can be challenging, but not only can be valuable to sports where movements are initiated from a standing position, but can also provide valuable carryover to the 4-point and 3-point starting stances used during sprints, first without starting blocks, then with blocks. Read on!  

In Addition

Check out this reflexes link also. Forming an understanding of the roles that reflexes play, as much as anything, can help coaches better recognize and understand the high-level performances that they are looking at with the naked eye, as well as understand how their athlete's performances may regress a bit when learning new things. In my mind, as athletes get more accustomed to various positions and techniques, given the time they hopefully will be more able to better coordinate movements, improve timing and rhythm, and ultimately better incorporate reflexes into their movements. In the sprints, however, especially in the 100-meter dash where the separation between competitors at the top level is very small, you definitely don't want that bit of regression at important times of the season. Hopefully coaches can identify both the positives and the negatives, weigh the risk vs the reward and proceed cautiously when correcting mistakes. At the elite level, many of the sprinters exhibit impressive reflexes and powerful movements throughout the entirety of the race while turning over at 4.5 - 5 strides per second. Some sprinters, however; are obviously consistently better than the others. I hope to be able to describe in my blogs a learning progression that can help identify areas that even elite athletes can improve upon and lead to an improvement in their sprint performances. Read on!

How Speed Development Impacts Other Sports

In a perfect world, I believe that speed training that introduces new aspects to the athletes should occur in the off-season where the athlete doesn't have to be overly concerned with quickly seeing results on the field, court, pitch, etc... Having said that, I do believe that the balls, implements, sport specific movements, etc..., need to be adequately incorporated in the speed training even in the off-season, ie; dribbling a basketball, soccer ball, defensive movements, etc... My blogs on incorporating speed into specific sports include videos of how some of the fastest athletes in those sports looked during game play. Athletes should not lose sight of the primary objective still being to effectively execute the fundamentals of the sport. An example is how basketball players are to jump off of one foot under control to shoot a layup after dribbling down the court very fast. A fundamental of jumping events in track applies here, as well as to many "jumping off of two feet" scenarios. The speed needs to be under control enough to execute the jump effectively, and the last few steps are important for executing this. In my " Speed Training for Basketball" blog I go into the details. There is also the aspect of preparing the joints, tendons, and musculature for the stresses that an improvement of speed may have when starting, stopping, changing direction, jumping/landing, and achieving top speed during play. My blogs address this as well.  

My Blogs

Below are the titles of a series of blogs where I go in depth into particular topics. Most of the blogs, however; are less than a 5-minute read. The exception is my The Start is Actually the first Three Steps blog, which is a 9-minute read and along with the Initial Acceleration Beyond the Start blog, pretty much lays the foundation for the rest of the blogs. In regard to sports that feature jumping, pivoting, and changes of direction, I suggest first reading my Care for the Knees blog, as it includes valuable information about the possible susceptibility to non-contact ACL Tears and how possibly to help prevent them. Even if you first read my Preparing Athletes for Sports That Feature Starting, Stopping, and Changes of Direction blog, you will see how it is necessary to get the information from the other blogs.

That aside, my suggestion is to read the blogs in the order you see below.  You'll notice that I have numerous blogs listed before the blogs that describe the particular starting positions. This is intentional, in order to give you a good overall view before considering the starting positions. You can easily access the blogs using the "Blog" button at the top of this page, then click on each blog that you want to read. You will probably have to scroll down to the "Start is Three Steps" blog. If viewing this on your phone, click on the three lines in the search box at the top of the page, then click on "Blog". I welcome your comments, but I admit, this being a new site, I'm not sure how easy it is to post a comment. I plan to check and respond periodically. 

My Availability

I am located in Lexington, South Carolina. The school where I teach Physical Education and coach Track just completed the school year, so I have a lot of availability. You may contact me at youthspeedcoach@gmail.com to see when I am able to consult with groups, ie; track teams/clubs, football teams, soccer teams, basketball teams, etc..., as well as with individuals and small groups for training.

Now Posted

The Start is Actually the First Three Steps!

The Initial Acceleration Beyond the Start

Rotational and Linear Aspects of Sprinting

Effective Recruitment and Coordination of Key Muscle Groups

Developing a Good Standing Start

The Three-Point and Four-Point Starts 

 

Max Velocity (Top Speed) in a Short Sprint

Physical Development and Resistance Training for Sprinters

Sample Early Season Training for Your Sprint - Jump - Hurdle Groups

Running the 40-Yard Dash

Care for the Knees During Sports That Involve Jumping, Pivoting, and Cutting

Preparing athletes for Sports That Feature Starting, Stopping, and Changes of Direction

Applying Sprinting Skills and Speed to the Football Field

Speed Training and Basketball

Speed Training and Soccer

Contact me at youthspeedcoach@gmail.com for other topics you would like me to address

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