Rate of Force Development Part 2: Training to Increase RFD
Last post, I went over some of the terms and definitions of rate of force development (RFD). I also mentioned motor units (MU) and if, at this point, you have no clue what I'm talking about, go back and read it. It's right here. Why should you care about increasing your rate of force development? Because power sports (which is every sport to some degree) is dependent upon the ability to produce high levels of force at any given moment, like running away from a T-Rex.
Good motivation for increasing rate of force development.
There are two main ways research and experience backs up to train RFD: explosive strength training (Newton et al. Med. Sciences Sports Exer. 1999) and maximal load training, i.e. picking up heavy stuff. (McBride et al, J. Strength and Conditioning Research 2002). It should be noted that most of the research has been done with isolated muscles/movements (it's a lot easier to test the quadriceps muscle in a leg extension machine than the various muscle groups in a deadlift) and so it can be a little tricky to apply to real life. However, where science has holes, the experience of coaches fills the gap!
First: force = mass x acceleration Keep this in mind...
Explosive training (speed work) is taking a sub-max load (say, 50% of your one rep max) and moving it as fast as possible, with good form obviously, for 1-3 reps per set. That's key- as fast as possible. Those high threshold motor units, the ones that produce the most force, are recruited to move that weight fast by contracting quickly. Even though the load is light, the acceleration is high. By challenging your system to move loads quickly, we increase the force production by increasing the acceleration part of the equation. This is one way to increase RFD. Typically at SAPT, we program 1-3 reps for 6-8 sets with a strict :45-:60 rest period. Why the rest parameters? We want to keep the nervous system "primed" and if the rest period is too long, we lose a bit of that ability to send rapid signals to the muscles.
Maximal load training, aka picking up some freakin' heavy weight, will typically be above 90% of your one rep max, also we keep the rep range between 1 and 3 (mainly because form can turn to utter poo very quickly under heavy loads if the volume is too high). This untilizes the other part of the force equation, mass. If the acceleration is low, the mass has to be high in order to have high force production. Once again, neural drive is increased and those high threshold MU's get activated. The threat of being crushed beneath a heavy bar can do that.
Recruit! Recruit! Recruit!
Bottom line: As the RFD increases --> the recruitment threshold of the more powerful motor units decreases --> more force is produced sooner in the movement --> heavier weights can be moved/athlete becomes more explosive in sport movements.
Think back on poor lifter B from last post who had a really low RFD during his 400lb deadlift attempt. Being the determined young man that he is, he trained intelligently to increase if RFD through practicing speed deadlifts (to get the bar off the floor faster) and maximal training, (to challenge the high threshold units to fire). Pretty soon, instead of taking 3 seconds to even get the bar off the floor, it only takes 1 second of effort and instead fo straining for 5 seconds just to get the bar to his knees, he's able to accelerate through the pull and get it to lock out in just under 4 seconds. Success!
Conquered.
For sake of the blog post, we could assume he always had the capability of producing enough force to pull 400lbs, but could produce it fast enough before his body pooped out. Now, with his new and improved RFD, 400lbs flies up like it's nothin.'
Another thing to keep in mind is the torque-angle relationship during the movement. Right... what?
All that means is the torque on the joints will change depending on their angles throughout the movement, thus affecting the amount of force the muscles surrounding those joints have to produce. For example, typically* the initial pull off the floor in a deadlift will be harder than the last 1-2 inches before locking out due to the angle of the hip and knees (at the bottom, the glutes are in a stretched position which makes contracting a little tougher than at the top when they're closer to their resting length.) Same concept applies to the bench press, typically** the first 1-2 inches off the chest are more difficult than the last 1-2 inches at lockout. The implication of all this being the muscles will have different force-production demands throughout the exercise.
Knowing this, we can train through the "easier" angles and still impose a decent stimulus to keep those higher threshold motor units firing the whole time. How?
With chains and bands! Yay!
Aside from looking totally awesome, chains provided added resistance during the "easier" portions of the exercise to encourage (read: compel) muscles to maintain a high force output throughout the movement. Watch Conrad, The Boss, deadlift with chains:
At the bottom, when the torque-angle relationship is less favorable, the weight is the lightest and as he pulls up, the weight increases as glutes must maintain a high level of force output to complete the deadlift. No lazy glutes up in hea'! Bands produce a similar effect. Check out the smashingly informative reverse band bench post Steve wrote here.
There are other ways, but quite frankly this blog post is reaching saga-like proportions so I'm going to cut it here. And remember kids:
*unless your name is Kelsey Reed and you have a torso 6 inches long... but can't lock the pull out.
** unless your arms a crazy long.
Confrontation Culture
Boston Strong. Oklahoma Resilience. We Are Sandy Hook-We Choose Love. Certainly these tragedies were all horrific, but they also brought out the best in their respective communities. Police and Fireman were heroic, but even ordinary citizens came together to help each other. Typically, in the face of adversity, good rises to the top, and the survivors become stronger than they were before. While sport culture is certainly different than community culture, lessons can be taken from how communities confront difficult situations.
The greatest organizations are not afraid to confront, even if it leads to tension. They embrace those moments as opportunities to improve and get better. Too many sports teams are afraid to confront; Do not upset the superstar. Stay away from giving honest, even if it’s difficult, feedback. Do not question the coach under any circumstance. Confrontation often leads to rocking the boat, and many captains are afraid to ride potentially rocky waves.
The truth is we become our best when confrontation is embraced. The word itself may cause you to think of negative examples, but the definition revolves around face to face clashing of idea. Does that sound so bad? Accusatory, finger pointing is not confrontation. It’s blame. Cultures that embrace confrontation believe that there may be a better, newer, smarter way of doing things. They strive to thrive when the going gets tough. Rather than simply surviving the rocky waves of the past, and storms that may be brewing in their future, they figure out how to keep the ship moving forward in that moment.
Confrontation cultures have open lines of communication, embrace questioning and believe there is no straight path to success. How are you using confrontation to better your culture? What ways can you encourage positive confrontation? Will you run away or run towards the storm?
Learn how to be a positive confronter and you will make a positive impact on your culture.
Want more from Brian? He's hosting upcoming classes at SAPT! Check out the schedule and description.
SAPT's Baseball Summer Training Program
It's that time of year! Time to get stronger, faster, more powerful, and pack some muscle mass onto your frame. Check out our special offer for baseball players this summer:
For the past 6-years, the coaches at SAPT have been helping pitchers and position players alike achieve their potential on the field. Set up a comprehensive evaluation today and start down your path to superhero status!
50/50 Video Highlights: American University Wrestling and Georgetown Prep Lacrosse
Over the past couple months I've had a tremendous opportunity to partner up with mental coach Brian Levenson through providing day-long "camps" for athletic teams looking to take it to the next level with respect to their physical AND mental performance. These camps are appropriately titled "The 50/50 Challenge," as they encompass a grueling combination of physical and mental challenges to help teams improve cohesion and learn to handle and overcome adversity. Brian is extremely good at what he does - he has a tremendous track record with amateur and professional athlete alike - so these events are particularly rewarding for me, being a "physical preparation specialist," as I get to work right alongside an accomplished mental coach to help athletes improve not only the physical component of their sport, but the mental element as well.
In general, what we've been doing with the teams thus far is pairing up series of physical challenges with mental ones, and sitting down to "debrief" after each pairing in order for the athletes to see how what they just learned/accomplished can help them improve in their sport, both as a team and as individuals.
The primary themes we focus on are:
- Focus and Concentration
- Team Cohesion
- Preparation/Routine
- Energy Management
- Controlling Controllables
Just yesterday Brian decided to get his Quentin Tarantino on and compile some video highlights from two of the teams we've worked with: American University Wrestling and Georgetown Prep Lacrosse. It was super enjoyable to work with both these teams as each team was made of not only athletic, but also intelligent and extremely driven individuals. Enjoy!
American University Wrestling Team
Georgetown Prep Lacrosse Team
**Note: If you'd like to schedule a 50/50 Challenge for your team, please don't hesitate to contact either Brian (Brian@capeperformance.com) or me (Steve@studentathletept.com)**
Conrad Mann at the USPA Larry Garro Memorial Powerlifting Meet
Whether it’s a third grade spelling bee or the Superbowl, putting yourself into competition takes a ton of courage. At 64 years young, Conrad of SAPT fame decided that it was time to enter into his first powerlifting meet (why not?). Even a double knee replacement wouldn’t keep Conrad from competing, and he decided to enter into the bench-only meet.
Here’s how it went down.
The Weigh-In
Conrad was competing in the 164.9 weight class. He was concerned prior to the meet that he might not make weight, but ended up stepping on the scale at a whopping 159 pounds. He came prepared, however, with plenty of fluids and snacks to get properly hydrated before he stepped on the platform.
The Wait
The typical sequence of a powerlifting meet is 1)Squat, 2)Bench Press, and 3)Deadlift. The lifters will have 3 attempts at each lift, and with two flights of competitors in the squat, we had plenty of time to relax and watch the squat attempts. We saw lifters of all shapes and sizes squat one after another. It was awesome to see all the different leverages people possess and the different styles of squatting they chose to utilize. High bar, low bar, Olympic shoes, Chuck Taylors, wider stance, narrow stance, long femurs, long torsos- basically every variation of a barbell back squat that you could imagine. Anyone interested in biomechanics should definitely check out a powerlifting meet just to see the infinite variations in the same basic movement pattern.
Towards the end of the second flight of squat attempts we decided it was time to start prepping both body and mind to push some heavy weight.
The Warm-Up
Taking the “if it ain’t broke don’t fix it,” attitude Conrad went through the same general warm-up as he does prior to a session at SAPT. Mobility work, scap pushups, face pulls and external rotations were all part of the ritual.
Just as important as getting physically warmed up for the bench attempts is getting mentally focused. At this point, Conrad’s level of raw strength was out of our control. The strength-building portion came from weeks of hard work on a brilliant bench specialization program designed in the top secret laboratory that is Steve Reed’s mind. However, this was the time where it was critical to take charge over the factors that we can control, of them being 1)Techniqu0e, and 2)Obeying the commands. The head judge gives three commands after unracking the bar (start, press, rack) during each attempt, and failure to obey any of these commands results in a “no good” lift.
Following the general warm-up we got on the bench. We started with light triples and progressed into heavier singles, ensuring that each rep was crisp and clean. The bar touched the same spot on his chest with every press, the elbows were nicely tucked at the bottom, and each command was obeyed as I yelled them out during the warm-up.
Go Time!
Having successfully primed his central nervous system to its fullest capacity, Conrad was warmed up, suited up, and ready to go. He was in the first flight of benchers and stepped on deck for his first attempt in a powerlifting competition.
Conrad opened at 85kg (187lbs). It was a solid opener, and flew up at lightning speed. Undisputed three whites from the judges for a good lift.
http://www.youtube.com/watch?v=7nw78bHsOqI&feature=youtu.be
His second attempt was 92.5kg (203.5lbs). Another easy bench for Conrad and three whites.
http://www.youtube.com/watch?v=D0dQ6bO8x48
Third attempt here was 97.5kg(214.5lbs) for a PR. Again another solid, clean lift that received a well deserved three whites from the judges.
http://www.youtube.com/watch?v=_z-L2EkKSXU
Wrap Up
To sum it up, Conrad walked away from the meet three for three on his attempts, a PR, no torn pecs, and shoulders still in-tact! Can’t ask for much better than that. Congrats Conrad, way to represent SAPT! Big thanks to Ron, Jen, and Sondra being part of the SAPT support staff, and a double thanks to Ron for taking videos of the attempts!
Band Geeks Need Strength Too!!
This past weekend I went to watch my brother, a tuba player in the Marching Virginians at Virginia Tech, play in the halftime show at football games (let's be honest, anyone who has met me quickly realizes that the band is the ONLY reason I go to football games. Blasphemous Hokie am I!) And if you're unfamiliar with the MVs and how AWESOME the tuba line is, here's a little sample:
(My brother is the one on the end closest to the camera.) Aren't they awesome? That's my bro-pod! Anyway, being the geek that I am (both a Band Geek and a Strength Geek...yup, I was in band all through high school and a bit in college!) as I watched the MVs perform I started thinking that they could really use some strength training. Not just the tuba's either! The WHOLE band would benefit from lifting heavy things that don't make music!
The MAIN point of this post (besides offering this piece of advice to my fellow band geeks: LIFT WEIGHTS!!) is that EVERYONE needs to be stronger no matter if you're an "athlete" or not. Read that again: EVERYONE NEEDS TO BE STRONGER!
Ahem, excuse me, I got a little carried away. Moving on, here are some exercises that I thought of while watching the MVs perform (and thinking back to my own marching days):
KB Swings:
Admit it, you knew I was going to say this. But seriously, this would be perfect for the tuba players doing the hokie pokie and sticking their heads in and out and shaking it all about. Check out the hip hinge (or rather, lack of) that tuba players need from the video above. Wouldn't a strong posterior chain make that easier? (especially on the 5th rendition of the Hokie Pokey)...
And then the swing:
Not only would this help make lugging the 25-45 pound tuba (technically sousaphone) up and down easier, it would prevent lower back injuries for over-enthusiastic hokie pokie-ing. Besides, swings improve cardiovascular fitness and who needs to be able to produce a lot of air without passing out more than a tuba player? (and the floutist. Fun fact: tuba players and flute players pass out more often from lack of air than any other instruments.) Every band member should swing; it'll improve their ability to make through the loooong Game Day of pre-game practice, marching and playing throughout the game. ANNND (one more thing) swings improve upper back strength and band members have to stand up straight throughout their performance, hence the need for a strong upper back.
Rows/Pullups/Chinups:
Speaking of strong upper backs, let's take a look at what the drum line has sitting on their chests:
I used to play drums and I can tell you, those instruments are NOT light! Rows, chins and pullups would be ideal to strengthen those muscles. By doing so, it will take the strain off the lower back because the upper back will be able to support the weight much more easily. (Cymbal players, I'm looking at you too! Those suckers are heavy, row/chins will also improve bicep strength which is needed in holding/clashing cymbals repeatedly.) Which leads me to my next exercise...
Planks/Anti-rotation presses/Anterior Core:
In junction with a strong upper back, a strong anterior (front side) core is CRUCIAL to preventing lower back injuries or aches while standing for long periods of time. This post highlights some exercises. I really like the landmine as there's a lot of dancing around in the bandstand so being able to resist rotation of the spine during wild cheering would be awesome!
And more anti-rotation:
Having a strong core is very, very (VERY! I'm not kidding!) important to band members who want to have a pain-free marching season.
Farmer Carrys:
This one should be obvious. Practice walking around with heavy things. Here's a post I wrote a while back about. Band geeks, read it!
And last but not least:
KB or Band-Resisted Dorsiflexion:
My high school band director used to say (or rather, shout): "I want to see 'HI MOM' written on the bottom of your shoes!!' meaning we had to march with our toes straight up to the sky (it looks nice...). Therefore, band geeks need super strong tibialis anteriors!
There are many more exercises I could list off (Pretty much everything in here) but I'll cut it here as I know band practice takes ALL of one's free time. However, I would encourage band geeks to squeeze in at least 30 minutes to improve there strength levels. And if a band geek can fit in time to get strong, then anyone can!
LET'S GO HOKIES!
