Showing posts with label hitting power. Show all posts
Showing posts with label hitting power. Show all posts

Sunday, April 1, 2012

Whip The Hip!

Rotational movement integrated with precise timing/sequencing
of the hip and glutei muscles will help give you the elusive power
you seek. So few people understand how to rotate at the hip and
engage the glutes with powerful contraction combined with rear
foot plantarflexion.

This lack of sequencing and movement patterning means a loss of
durability and inhibited optimum performance. Lack of ‘hip whip’
manifests itself in too much muscle recruitment from the upper
torso and the client will ‘bleed’ unproductive energy. It is a term
that represents the motion of powerful active contraction of the
glute with rotational power of the hip joint.

It’s the ‘snap’ of activation with intent of movement that counts.
No sloppy follow thru .The rear leg should have a tense activated
glute and the rear foot should be plantar flexed with minimal
weight resting on the ball of the foot. I tell my clients if I walked
behind you and hit that butt I better bounce off. No loosey
goosey!


Don’t worry about the front leg glute. That will be activated
because you are standing on it with more transferred weight. Pay
attention to the rear leg. Try the rotation without active glute
contraction and then with contraction. Tell me what difference you
feel? You feel much more powerful and stable right? Take a look
at this picture below to see a representation of an end phase ‘hip
whip.’ This is a high stability, loaded movement pattern. Top of
the ‘food chain’ in the 4-stages of owning the whip you will see
listed below.

The glutes are really nice to look at I know, ( well some are) but
the important thing in performance is how they function. Can
they activate? Can they sequence? You may need to spend time
teaching clients how to disassociate the top and bottom of the
body first and then move into locking in transitional patterns.
Start with no load and then increase to resistance bands, and
finally cables.

If you can master the power of the hips and glute you will
unleash the secret weapon of performance. All things being
considered you must own the ‘hip whip’ by progressing thru 4
stages.

1. Insure adequate mobility is on board in the hips. Particularly in
extension and internal rotation. Look for asymmetries.

2. Fascial snags and glutei trigger points must be released and
addressed because they will cause soft tissue extensibility
dysfunction and loss of mobility.

3. Glutes must be activated in relationship to the calves and
iliacus Glutes are often inhibited and weak in relationship to
facilitated calves and iliacus. Release the iliacus by manual
pressure and foam roll the calves, followed immediately by supine
hip bridges to activate the glutes. Be careful of doing the wrong
thing to the psoas. It is often tight and weak, indicating a need
for stretching then immediate strengthening. Simply stretching a
tight and weak muscle is asking for TROUBLE!

4. Movement patterning and motor control. Gaining stability of
the hips in static position, then proceeded by dynamic, and finally
loaded high threshold movement so you can lock in the new
mobility with neural control.

Precision of movement. Quality over quantity. Better is better,
more is not better. These are your guiding principles of power.
Now go have fun whipping your hip!

Rodger Fleming, ATC, LMT
Body Awareness Therapeutic Massage
Macon, Georgia

Wednesday, July 6, 2011

Where Bat Speed Comes From

The Major League All-Star Game is approaching and that means HOME RUN DERBY! This brings up a topic that I discuss often with players and coaches: Where does bat speed come from?

Many players and coaches spend a multitude of their training time emphasizing forearm, wrist, and hand strength and endurance in the belief that “strong hands = greater bat speed”. However, a 2004 study in the Journal of Strength and Conditioning Research concluded that grip strength and bat velocity are not significantly related. So, where does bat swing velocity come from?

If you subscribe to the kinetic chain model of performance, the movement patterns of the baseball swing and the throw are very similar from the ground to the torso. The basic phases of the swing can be divided into the swing, launch, contact, and finish. The stance is highly individualized and emphasizes comfort and confidence for the hitter. The athlete is relaxed and balanced with a slight flex in his knees and elbow and both eyes on the pitcher. The stride and load take place simultaneously creating rhythm and momentum in order to harness potential energy with the weight back, ready to explode and initiate the swing. The back knee “triggers” the swing and the hand patch is down and directly toward the ball. The hips and torso continue to rotate to the contact point while the hands “stay inside the ball” and continue on the downward approach. The contact point is the strongest position of the swing. The body is balanced with the front side firm and closed while the back knee forms an “L”. The hips and shoulders are level with the chest positioned over the hips. From contact the bat head stays level as the hands drive “through the baseball” to get extension. During the finish, balance is the key.

The development of force and motion illustrated in the baseball swing progresses from the ground to the bat (proximal to distal). Through synergistic force production and interactive moments of the legs and hips and abdominal muscles, energy is stored and the Summation of Speeds creates a transmission of the energy through the core to the upper extremity where it is released through the bat. Placing most of the force development in the central core, allows small changes in rotation around the core to effect large changes in the positioning of the arms and hands. This creates higher angular velocities similar to the cracking of a whip and lets the muscles of the forearms, wrists, and hands be more directed toward precision and control rather than power production.

For those who continue to believe that grip and forearm strength is the key. I agree with you but, not for the same reasons. The baseball season is long. During the season, the typical hitter may take an average of 145 swings per day (early cage work, batting practice, pre-at bat swings, and during their in-game at-bat). The bat may weigh anywhere from 32-34 ounces. Over the course of a season, the hands get fatigued. It is important to maintain strength-endurance of the forearm, wrist, and hand muscles in order to prevent and limit fatigue. Particularly, because as discussed, the last link in the chain is the hands. If the precision and control muscles are not doing their job because their “tired”, then the maximum power and force cannot be transmitted through the bat to the ball.

Unfortunately many of the fallacies in baseball training programs continue to be taught to our younger players. It is important to remember that for the purposes of generating bat swing velocity and power, emphasis should be placed on the lower extremity and core rather than an over abundant amount of wasted time strengthening the forearms and grip.


Suggested Reading:

Hughes SS, Lyons BC, Mayo JL. Effect of grip strength and grip strengthening exercises on instantaneous bat velocity of collegiate baseball players. Journal of Strength and Conditioning Research. 2004; 18(2): 298-301.

Kibler WB, Press J, Sciascia A. The role of core stability in athletic function. Sports Medicine. 2006; 36(3): 189-198.

David Yeager, ATC, CSCS
Co-Founder
BaseballStrengthCoaching.com