coach b money wrote:
I am coaching a female sprinter with good speed (12.4 100m, 25.x 200m). She runs with shoulders 'tense' and her arms bent at ~35 degree angle.
I relentlessly cue to her to relax her shoulders and work for a 45 degree bend at the elbow, and she knows that this is an area she can greatly improve, so she is trying.
What I'm wondering is if this sounds like a strength or flexibility issue, or if there is some other variable I should investigate.
Any ideas Lets Run?
While our first instinct is to treat the initial problem that we see, it's especially important to look at any athlete (esp a runner) as a whole. Sprinting is a full body activity.
Two important thoughts to consider here:
1. The shoulder joint is the MOST UNSTABLE joint in the body.
2. "Proximal STABILITY BEFORE distal mobility."
Even before we begin to look at her shoulder joint (which is essentially 2 joints -- the glenohumeral/ball-in-socket joint and the scapulothoracic joint), we need to assess what her SPINE is doing. Take a look at her off of the track when she is just sitting and waiting for practice or sitting on a weight machine between reps. What position are her neck, shoulders, and thoracic spine in? Are her shoulders rounded forward? Does she have forward head posture? When she lifts, does she consciously activate her scapular muscles and stabilize the posterior chain and brace her core muscles before beginning a lift, or does she just start lifting without much thought?
The fact that she is recruiting her upper traps, levator scapulae, scalenes, SCM, etc when sprinting tells me that she does not have sufficient core strength or spinal stability and easily fatigues during the demand of sprinting, which is causing her inefficient form. It also suggests that she lacks scapular stabilization which is why she may APPEAR to lack flexibility in the glenohumeral joint (which in a sense, is more a weakness than a flexibility issue).
Try this:
Sit in a chair with your shoulders completely relaxed, rounded forward, head forward, and not round at the spine and lean forward. Try to lift your arm up over your head 10 times. Now lift it out to the side 10 times, staying in that position.
Now stand up, squeeze your shoulders gently back (correcting the rounded posture) tuck your chin in a bit, and gently brace your core muscles. Now lift your arm up over your head 10 times.
Now if you were to do both these exercises again in front of a mirror, you'll notice especially when your spine is not in a position that allows the core to provide it with stability, your upper trap is going to be one of the first muscles you recruit in order to move your arm. You'll also notice you have decreased mobility with that type of posture.
Granted, she's not sitting in a chair rounded forward when sprinting, but this concept still applies for her. She demonstrates that pattern of weakness and INSTABILITY. IMHO, the last thing she needs is stretching with the only exception being the pectoral muscles which tend to be tighter in individuals with weak scapular muscles and back extensors.
I think the "rowing" suggestion was good. But I think it's 10 steps ahead of where she is at. Again, you want to think "proximal stability before distal mobility".
I would try exercises at the cables with her (Therabands would be great too). The main focus should be on spine and scapular stability, and NOT what her arms are doing. One of my favorites is the "bear hug" which forces the athlete to focus on maintaining thoracic spine stabilization, scapular stabilzation, and keeping this going while moving the shoulder joints into a hugging motion:
http://www.youtube.com/watch?v=NIFwjphP0xYAnother one that's great is a "push-pull" combo at the cable which simulates sprinting. You would set it up so one arm is pushing weight forward (shoulder protraction) while the other arm is pulling (retraction and extension). The idea is to keep the ENTIRE spine as braced and stable as possible (from lumbar to cervical spine) while performing the upper extremity movement. You may even want to attempt this in a kneeling position and work your way up to standing and assess her spinal stability and core strength as a whole.
Other exercises you can focus on besides ones for the shoulder would be strengthening not just her "core" muscles in the front, but ensuring she is strong in the back as well. Exercises such as an isometric superman hold focusing on the extension coming from just above the waist and all the way up her spine and incorporating deep breathing would be great for her. The diaphragmatic breathing is KEY because it ensures she can maintain this stability while breathing which is obviously essential for sprinting, which is a dynamic activity. It will also create a greater amount of muscle activation during the exercises.
Let me know if you want some literature/links to anything that sounds confusing. Good luck!