In USATF coaching education a graph is presented that shows volume and intensity that is similar to the graph below (from the American Journal of Sports Medicine).
I’m not sharing this graph to start a discussion about the graph itself and the theory of periodization that underlies the graph (though you are welcome to discuss the validity of the graph in the comments section). I’m sharing the graph because I received an email this week from a coach who has been using the Lunge Matrix (LM) warm-up with his athletes. If you’re not familiar with the warm-up please take a look at the video below.
The coach then told me that they had added the LM to their daily warm-up and they were having lower leg problems, saying “we’re plagued with lower leg cramps, spasms, and pain. At first I just attributed it to the ubiquitous, new-runner “shin splints”, but now even my experienced runners are starting to have serious pain, tightness, and discomfort.”
This email saddened me, especially since the LM is one of the elemental aspects of training in my worldview and something that is supposed to protect against injury. I spent some time writing a response and I will share my email response in the comments section below.
What I want to do is use this email as a way to focus our attention on a simply question. If you were to look at a one year macrocycle of training, when will injuries likely occur? Think about it for a moment before you read on.
USATF coaching education was the first time I was espoused to the concept of “cross-over”, the point where volume and intensity cross one another and the need to be careful at that point in training cycle. Mark Wetmore calls the first two weeks of school the “danger zone” because that is where injuries often begin. He would highlight it in red as a reminder to keep the workouts conservative in the hopes that his charges would be able to train injury-free.
It saddens me that I’ve received three emails in less than forty-eight hours from HS coaches who have athletes who are either injured or are on the verge injury. Obviously each coach is in a different situation with different constraints and realities, yet I would guess that in most programs there are some common themes that are leading to this problem.
1. The intensity has gone up since the start of organized practice, primarily due to athletes wanting to see where they are in the team hierarchy.
2. The stress of a new school year, while innervating for the student, negatively impacts the athlete’s ability to recover between training bouts.
3. HS athletes, when not meeting their coach, rarely do the training the coach assigns exactly as the coach assigns it.
4. Talent and desire will allow a runner to “keep up” in practice, yet only an experienced coach will be able to tell if the athlete is running controlled in the workouts or is running close to race effort.
5. Volume and Intensity are the two primary variables in training design, yet it takes experience to bleed them together into a training plan that allows athletes to run injury-free.
That said, I don’t know how those themes may be impacting the teams coached by the accomplished trio of coaches who emailed me this week. Obviously I don’t have any specific answers for them, but hopefully having laid out five of what are no doubt dozens of themes relating to early season cross country injuries/issues, I can help these coaches and their athletes…’cause right now I feel bad for the coaches and sad for the athletes.
I will close with this. I emailed a small group of coaches and physiotherapists I respect to get their thoughts on the LM and the lower leg issues. Below is one comment from a college coach and one from a physiotherapist. Both provide an insight into this issue and I appreciate them taking the time to write.
From a college coach:
When kids get hurt in the first couple weeks of practice I normally assume that the training that I am prescribing is too much of a jump from what the kids accomplished in the summer. This is fairly common. I tend to believe that the athletes have done some percentage of the totality of what I have asked them to do. Unless I have seen the training I can not assume that everything was completed. It is unlikely that any one routine or exercise is the culprit in an injury scenario. Injuries are often a result of a mismatch between preparation and prescription. Most coaches are very good at what they do so more often than not we need to look at athlete preparation as the culprit……..
From a physiotherapist:
I love the lunge matrix warm-up routine, I think it is a good dynamic way to actively stretch most of the muscles in the lower quadrant. So I don’t necessarily think that it is the main factor causing the lower leg cramping/pain/tightness. If anything, it should be helping to alleviate those types of problems. Hydration may be an issue, but if not, the athletes may be lunging too far in the various planes during the progression. If too much dorsiflexion at the ankle is occurring causing overstretch of the calves, then a reflex contraction in the calves (specifically the soleus) leading to the spasms may be occurring. Too much dorsiflexion at the ankle will occur during a lunge if the athlete lacks proper hip extension when lunging while the knee touches the ground. Also, in the backward lunge exercise, the athlete has to rely on the hamstrings to perform deceleration of the hips as weight is transferred to the front leg. If the hamstrings fail to efficiently perform deceleration, then too much weight is transferred to the front part of the front foot causing excessive dorsiflexion at that ankle as well. Additionally, the athlete’s may not be properly warm when performing the routine. What is his reasoning for the 300m jog, 100m walk series? Do all his athletes do this, or just the beginners? The more experienced athletes may need to do a continuous jog for the warm-up as opposed to stopping every 300m and walking to adequately prepare the muscles for the dynamic stretch routine. Finally, although he may be watching his athletes perform these exercises to make sure their form is correct, maybe suggest not having them touch their knee to the ground as this will also increase ankle dorsiflexion causing additional stretch in the calves. Hope this helps.
