Unfortunately, I’m not the 6' 7" son of a Hall of Famer, so I had to resort to desperate devices—like Hennessy, an infamous and inexpensive cognac that, according to one of the two NBA players who recommended it to me, “will give you that Yah! That bounce. That little bit of meanness you need.” The little minibar-sized bottle that I downed 30 minutes into an intense session of dunk attempts on a sweltering day last summer, had no effect other than scorching my esophagus, giving me a headache and releasing from my pores an aura that, as my six-year-old put it that evening, “smells like medicine.”
The vertical jump is one of the most explosive physical movements executed in sport. In a number of sports, the higher the athlete is able to jump, the greater the prospects of success in that discipline. Basketball and volleyball are the two most prominent examples of sports where that correlation is plain. The jumping ability of an athlete is also an indicator of overall athletic ability, as there is a clear relationship between the ability to jump and the running speed that the athlete will develop over short distances. The National Football League, where prospective players are subjected to various physical tests, requires every player to be tested for both vertical leaps and 40-yd (37 m) sprints, irrespective of the position played.
Less helpful was my early realization that I was a two-hand dunker, in light of my inability to palm a basketball on the move. It’s common knowledge among dunkers that throwing down with two hands is typically harder than with one; the former requires a higher vertical leap. So as I flailed haplessly at the rim last spring with one hand, I felt not just discouragement but also fear. Fear that I would miss big chunks of my kids’ ninth, sixth, and first years on earth just so I could come up embarrassingly short on a senseless goal that my wife and I would later estimate consumed 15 to 20 hours a week, on top of my normal work hours. And fear that I had shared this idea with my editors way too soon.
My early efforts were clumsy. Jumping willy-nilly as high as I could, with no regard for technique, I occasionally felt my finger graze the underside of the rim. Most times I did not. What I did feel early on was a firm self-awareness­ that I was a two-foot jumper (like Spud Webb, Dominique Wilkins, Vince Carter and myriad NBA Slam Dunk champions with whom I have nothing else in common athletically) as opposed to a one-foot jumper (see: Julius Erving, Clyde Drexler, Michael Jordan). This meant that my best shot at dunking would be to elevate like an outside hitter in volleyball—that is, by stepping forward with one foot, quickly planting my trailing foot next to it and then propelling myself upward off both.
Muscular strength and explosiveness must be developed in conjunction with flexibility if the athlete is to maximize the jumping ability and reduce the risk of injury to structures such as the Achilles tendon and knee ligaments. Flexibility, when achieved through focused stretching programs, will serve to increase the range of motion in the joints essential to jumping: the ankles, knees, and hips. A common muscular deficiency that plagues athletes who require well-developed leaping ability is a lack of flexibility and resultant strength imbalance between the quadriceps (thigh) muscles and the hamstrings, the pair of muscles responsible for the flexion and the extension of the knee. Proper stretching will assist the athlete in the maintenance of an approximate 3:2 ratio in the relative strength of the quadriceps to the hamstring. When there is a significant deviation from that proportion, the knee and the muscles themselves are at greater risk of injury.
Not so long ago, I played the worst basketball game of my life. I missed layups, turned over the ball, allowed my opponent free reign to the hoop. It was dark. As I slumped on the sidelines after the game, I realized how far I’d fallen from my prime a decade ago. Back then, I could dunk; now, at 33, I could barely curl my fingers over the rim. My game had regressed to hovering around the arc jacking threes. The last time I dunked a basketball, Michael Jordan was a Washington Wizard and people still listened to Coldplay.

Another high pull option is to shorten the range of motion to make it a hang high pull instead of a power high pull (“power” implying that the load starts on the floor). In this case, the start position is from standing, with the bar hanging in front of your thighs at arms’ length. The movement is initiated with a dip in the hips and knees, so that the bar lowers to just above knee level, followed immediately by an explosive pull.
My wife of 11 years, who isn’t a sports fan, knit her brow in confusion and nodded when I raised this idea for the first time. She wanted to care but could not muster the attention span, for she had given birth just three weeks earlier to our third daughter. I would be needed at home in the coming weeks—a reasonable expectation. Although I look back today with pride at how I balanced that responsibility with the time-consuming­ and far less important dedication to dunking, I knew at the time that I would miss a lot of family dinners, bath times and diaper changes so that I could ride my bike to the gym or to local playgrounds, with no guarantee that I would reach my goal, or even come close.
Whichever equipment you use, the first thing you’ll need to do is measure your reach standing flat-footed on the floor with one arm fully extended straight overhead. (You can measure your reach up against a wall for the chalk option.) Then, when you mark the highest point you touched, you’ll subtract your reach from that number. For example, if your reach is 90 inches and you touched 115 inches up on the wall with your chalk, your vertical leap is 25 inches.
Here is the thing. Even if you think you do not need this book but you are playing basketball be sure - you need this one. Here is why. I really had no idea this will be met with such enthusiasm. We got the book for the friends son, 16 year old Barty. Next to snickers we gave him, he did not even see or react on this book. We knew he is devoted to this sport and he was much appreciated in his school team so I thought he would take interest. After good few weeks, I got the call from Barty's dad telling me I will receive the call from Barty very soon. Well, he was wrong - I received a call to a game! After the game Barty and his team mates were explaining us how they got the 'missing link' in this work and how they ... full review

Nothing generates more excitement in a basketball game than watching the creativity and athleticism of a player flying through the air and finishing with a slam dunk. It can single-handedly change the dynamic of the game and turn a regular player into a star. Although it helps to be tall or have a natural leaping ability, short people can develop the skills required to perform this amazing athletic feat with proper training and technique.
You can assist in recording your score by holding a piece of chalk in your had and using it to mark the wall. If the wall already has horizontal lines, such as a brick wall, it will be easier to mark your jump height. Have as many attempts as you need to get the best possible score. Practice your technique, as the jump height can be affected by how much you bend your knees before jumping, and the effective use of the arms.

Using only a lifting (concentric) phase for strength training exercises could also be more effective for improving vertical jump height than traditional, stretch-shortening cycle exercises under load, for two reasons. Firstly, using only a lifting phase involves faster rate of force development through higher rate coding, and this may increase high-velocity strength more over the long-term. Secondly, doing stretch-shortening cycle exercises under load *might* cause the tendons to increase stiffness to a greater extent. This would make the muscle lengthen more in the countermovement phase of a jump, and thereby reduce muscle force for a given countermovement depth.
High pulls can also be done using a dumbbell or kettlebell,. When doing so, position the weight between your feet and pull with one arm at a time (switching arms halfway through the set). A trap bar (aka, hex bar) is also an option, particularly for individuals who have a hard time keeping the lower back flat; the trap bar allows the hands to be positioned behind the shins to help pull the shoulders back.
In the 2011 NBA contest, Los Angeles Clippers power-forward Blake Griffin completed a self-pass off of the backboard prior to elbow-hanging on the rim. A number of other variants of the elbow hang have been executed, including a lob self-pass, hanging by the arm pit,[23] a windmill,[24] and over a person.[25] Most notable are two variations which as of July 2012, have yet to be duplicated. In 2008, Canadian athlete Justin Darlington introduced an iteration aptly entitled a 'double-elbow hang', in which the player inserts both forearms through the rim and subsequently hangs on both elbows pits.[26] Circa 2009, French athlete Guy Dupuy demonstrated the ability to perform a between-the-legs elbow hang; however, Guy opted not to hang on the rim by his elbow, likely because the downward moment could have resulted in injury.[27]

When I started to work on the video tool that measures vertical jump, I had to dust off my old textbooks to learn about the relationship between hang time and jump height. And to my surprise, it turned out that the vertical jump is a great (and interesting!) example of the laws of physics at work. You can really learn about the relationship between velocity, acceleration, forces and hang time. Definitely more interesting than the average example of your physics textbook!
(function(){"use strict";function u(e){return"function"==typeof e||"object"==typeof e&&null!==e}function s(e){return"function"==typeof e}function a(e){X=e}function l(e){G=e}function c(){return function(){r.nextTick(p)}}function f(){var e=0,n=new ne(p),t=document.createTextNode("");return n.observe(t,{characterData:!0}),function(){t.data=e=++e%2}}function d(){var e=new MessageChannel;return e.port1.onmessage=p,function(){e.port2.postMessage(0)}}function h(){return function(){setTimeout(p,1)}}function p(){for(var e=0;et.length)&&(n=t.length),n-=e.length;var r=t.indexOf(e,n);return-1!==r&&r===n}),String.prototype.startsWith||(String.prototype.startsWith=function(e,n){return n=n||0,this.substr(n,e.length)===e}),String.prototype.trim||(String.prototype.trim=function(){return this.replace(/^[\s\uFEFF\xA0]+|[\s\uFEFF\xA0]+$/g,"")}),String.prototype.includes||(String.prototype.includes=function(e,n){"use strict";return"number"!=typeof n&&(n=0),!(n+e.length>this.length)&&-1!==this.indexOf(e,n)})},"./shared/require-global.js":function(e,n,t){e.exports=t("./shared/require-shim.js")},"./shared/require-shim.js":function(e,n,t){var r=t("./shared/errors.js"),i=(this.window,!1),o=null,u=null,s=new Promise(function(e,n){o=e,u=n}),a=function(e){if(!a.hasModule(e)){var n=new Error('Cannot find module "'+e+'"');throw n.code="MODULE_NOT_FOUND",n}return t("./"+e+".js")};a.loadChunk=function(e){return s.then(function(){return"main"==e?t.e("main").then(function(e){t("./main.js")}.bind(null,t))["catch"](t.oe):"dev"==e?Promise.all([t.e("main"),t.e("dev")]).then(function(e){t("./shared/dev.js")}.bind(null,t))["catch"](t.oe):"internal"==e?Promise.all([t.e("main"),t.e("internal"),t.e("qtext2"),t.e("dev")]).then(function(e){t("./internal.js")}.bind(null,t))["catch"](t.oe):"ads_manager"==e?Promise.all([t.e("main"),t.e("ads_manager")]).then(function(e){undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined}.bind(null,t))["catch"](t.oe):"publisher_dashboard"==e?t.e("publisher_dashboard").then(function(e){undefined,undefined,undefined,undefined,undefined,undefined,undefined,undefined}.bind(null,t))["catch"](t.oe):"content_widgets"==e?Promise.all([t.e("main"),t.e("content_widgets")]).then(function(e){t("./content_widgets.iframe.js")}.bind(null,t))["catch"](t.oe):void 0})},a.whenReady=function(e,n){Promise.all(window.webpackChunks.map(function(e){return a.loadChunk(e)})).then(function(){n()})},a.installPageProperties=function(e,n){window.Q.settings=e,window.Q.gating=n,i=!0,o()},a.assertPagePropertiesInstalled=function(){i||(u(),r.logJsError("installPageProperties","The install page properties promise was rejected in require-shim."))},a.prefetchAll=function(){t("./settings.js");Promise.all([t.e("main"),t.e("qtext2")]).then(function(){}.bind(null,t))["catch"](t.oe)},a.hasModule=function(e){return!!window.NODE_JS||t.m.hasOwnProperty("./"+e+".js")},a.execAll=function(){var e=Object.keys(t.m);try{for(var n=0;n=c?n():document.fonts.load(l(o,'"'+o.family+'"'),s).then(function(n){1<=n.length?e():setTimeout(t,25)},function(){n()})}t()});var w=new Promise(function(e,n){a=setTimeout(n,c)});Promise.race([w,m]).then(function(){clearTimeout(a),e(o)},function(){n(o)})}else t(function(){function t(){var n;(n=-1!=y&&-1!=g||-1!=y&&-1!=v||-1!=g&&-1!=v)&&((n=y!=g&&y!=v&&g!=v)||(null===f&&(n=/AppleWebKit\/([0-9]+)(?:\.([0-9]+))/.exec(window.navigator.userAgent),f=!!n&&(536>parseInt(n[1],10)||536===parseInt(n[1],10)&&11>=parseInt(n[2],10))),n=f&&(y==b&&g==b&&v==b||y==x&&g==x&&v==x||y==j&&g==j&&v==j)),n=!n),n&&(null!==_.parentNode&&_.parentNode.removeChild(_),clearTimeout(a),e(o))}function d(){if((new Date).getTime()-h>=c)null!==_.parentNode&&_.parentNode.removeChild(_),n(o);else{var e=document.hidden;!0!==e&&void 0!==e||(y=p.a.offsetWidth,g=m.a.offsetWidth,v=w.a.offsetWidth,t()),a=setTimeout(d,50)}}var p=new r(s),m=new r(s),w=new r(s),y=-1,g=-1,v=-1,b=-1,x=-1,j=-1,_=document.createElement("div");_.dir="ltr",i(p,l(o,"sans-serif")),i(m,l(o,"serif")),i(w,l(o,"monospace")),_.appendChild(p.a),_.appendChild(m.a),_.appendChild(w.a),document.body.appendChild(_),b=p.a.offsetWidth,x=m.a.offsetWidth,j=w.a.offsetWidth,d(),u(p,function(e){y=e,t()}),i(p,l(o,'"'+o.family+'",sans-serif')),u(m,function(e){g=e,t()}),i(m,l(o,'"'+o.family+'",serif')),u(w,function(e){v=e,t()}),i(w,l(o,'"'+o.family+'",monospace'))})})},void 0!==e?e.exports=s:(window.FontFaceObserver=s,window.FontFaceObserver.prototype.load=s.prototype.load)}()},"./third_party/tracekit.js":function(e,n){/**
Thus, dopamine and norepinephrine may have different effects on the kidney, the splanchnic region, and the pituitary axis, but the clinical implications of these differences are still uncertain. Consensus guidelines and expert recommendations suggest that either agent may be used as a first-choice vasopressor in patients with shock.6-8 However, observational studies have shown that the administration of dopamine may be associated with rates of death that are higher than those associated with the administration of norepinephrine.3,9,10 The Sepsis Occurrence in Acutely Ill Patients (SOAP) study,3 which involved 1058 patients who were in shock, showed that administration of dopamine was an independent risk factor for death in the intensive care unit (ICU). In a meta-analysis,11 only three randomized studies, with a total of just 62 patients, were identified that compared the effects of dopamine and norepinephrine in patients with septic shock. The lack of data from clinical trials in the face of growing observational evidence that norepinephrine may be associated with better outcomes called for a randomized, controlled trial. Our study was designed to evaluate whether the choice of norepinephrine over dopamine as the first-line vasopressor agent could reduce the rate of death among patients in shock.
Squats – start with the bar behind your neck, resting on your shoulders and make sure you’re standing with your feet shoulder width apart. From this position, slowly lower your body by bending at your knees. You’ll go all the way down until you’re in a deep squat and holding that position for two seconds. Then you can slowly rise back up to your starting position. Make sure you keep your back straight and you’re bending at your knees.
procedure (see also variations below): the athlete stands side on to a wall and reaches up with the hand closest to the wall. Keeping the feet flat on the ground, the point of the fingertips is marked or recorded. This is called the standing reach height. The athlete then stands away from the wall, and leaps vertically as high as possible using both arms and legs to assist in projecting the body upwards. The jumping technique can or cannot use a countermovement (see vertical jump technique). Attempt to touch the wall at the highest point of the jump. The difference in distance between the standing reach height and the jump height is the score. The best of three attempts is recorded.
The baseline dunk is an approach-modifier of any dunk type in which the player approaches the basket along the court-boundary (baseline) which runs parallel with the backboard. In the game setting, the dunk often comes as the result of a pass, creating an assist opportunity for a teammate. In the contest, the baseline approach may be used as a means of convenience, facilitating a particular dunk type (e.g., passes bounced off the side of the backboard or its padding) or to increase the difficulty of a dunk type in hopes of meriting higher scores.

After a one-week recovery period in January following Phase 1 of Jump Attack, Phase 2 brought an increase in intensity and time investment. This was the last stop before Phase 3, the wilderness where those attack depth jumps lived. (Attack depth jumps: Rest on your knees in front of a box; explode to your feet without using your hands; immediately jump onto the box; immediately jump as high as you can off the box, landing on the balls of your feet. Repeat. Many times. No blacking out allowed.) Phase 3 brought dramatic increases in both explosiveness and hip flexibility, two critical ingredients that I started to feel working in tandem. I emerged both confident and in dire need of another one-week recovery period, which I spent playing with our kids, watching dunk videos and mouthing the syllable Ow. Once healed, in early March, I returned to the rims with a friend whom I’d asked to toss lobs to me. There would be no more lifting. (After Jump Attack, what else could there possibly be?) From here on, I just jumped and recovered, jumped and recovered, attacking this tiny window of three or four weeks before my time away from the gym began to sap my strength. It would be over at that point, all over, whether I wanted it to be or not.

Copyright © 2019 Leaf Group Ltd. Use of this web site constitutes acceptance of the LIVESTRONG.COM Terms of Use, Privacy Policy and Copyright Policy. The material appearing on LIVESTRONG.COM is for educational use only. It should not be used as a substitute for professional medical advice, diagnosis or treatment. LIVESTRONG is a registered trademark of the LIVESTRONG Foundation. The LIVESTRONG Foundation and LIVESTRONG.COM do not endorse any of the products or services that are advertised on the web site. Moreover, we do not select every advertiser or advertisement that appears on the web site-many of the advertisements are served by third party advertising companies.
Toe Raises – stand with your feet shoulder width apart, typically on stairs or any sort of ground you can stand on that allows your heel to dip down. Then raise up on the tips of your toes. Continue this process until your complete your reps. Don’t rock up and down – or go to fast. For the exercise to work, you have to use correct form and go at a steady pace.
How do you know these will work? A little over a year ago, I was a 6′7″ HS junior, and I could almost touch rim. I decided that I wanted to dunk as soon as possible. I worked by butt off, doing these numbers or more every day (well, almost). 3 to 4 months later, I threw down my first dunk on a regulation goal (10 feet). Fast forward to today, I am a 6′8″ HS senior, and can dunk regularly (am close to doing a two handed standing dunk).

This phase begins with the athlete at the bottom of the jump, just as he begins exploding upwards towards the takeoff. The force-time graph shows that the athlete reaches peak forces shortly after reaching the lowest point of the jump. He then further accelerates until his feet leave the ground and there are no more ground reaction forces measurable.

For smaller guys much of the problem, and one I struggled with, is managing the ball. Like most guys my size I can palm a basketball if a grab it carefully, but realistically it isn’t going to happen without a little concentrated effort. Some of those big guys can make a basketball look like a volleyball, and they have no trouble getting hold of it and shoving it over the rim.
I learned that insects are fucking awesome. There was an insect in particular that I was interested in called the froghopper, or spittlebug, that is basically one of the world’s top jumpers. It’s a survival mechanism. It can jump far, far higher than we can as a function of its weight, basically. So I learned that humans are quite modest in the jumping scheme of things.
Parte 3, se refiere a los intentos de aplicar la doctrina de choque sin la necesidad de violencia extrema en contra de amplios sectores de la población. La terapia de choque leve de Margaret Thatcher explica cómo se hace posible con la Guerra de las Malvinas, mientras que la reforma del mercado libre en Bolivia ha sido posible gracias a una combinación de una preexistente crisis económica y el carisma de Jeffrey Sachs.
The first thing they have to do is improve their flexibility, for a couple of reasons. They need to be flexible to undertake the kind of exercises they need to be able to jump higher. They also just need to be able to increase their flexibility, because in the short sprints you take when you try to dunk a basketball, if you can imagine yourself running up to try to dunk on the rim, the higher you can bring your knees in a sprint, just like a sprinter running the hundred meters, the greater force you’ll be able to exert on the ground, especially with your leaping step.
From the Department of Intensive Care, Erasme University Hospital (D.D.B., A.B., J.-L.V.); the Department of Intensive Care, Brugmann University Hospital, Université Libre de Bruxelles (J.D., P.G.); and the Department of Intensive Care, Centre Hospitalier Etterbeek Ixelles (D.C.) — all in Brussels; the Department of Intensive Care, Centre Hospitalier Universitaire de Charleroi, Charleroi, Belgium (P.B., P.D.); the Department of Medicine III, Intensive Care Unit 13H1, Medical University of Vienna, Vienna (C.M.); and the Department of Anesthesia and Critical Care, Rio Hortega University Hospital, Valladolid, Spain (C.A.).

Dunking isn’t much different. You’ll likely find yourself getting slightly higher with each attempt at first, but before long, fatigue will set in and your vertical leap will decrease. At this point, it’s a good idea to end the session, rather than try to push through and force yourself to jump higher. It’s an indication that your nervous system has mustered all the energy it has to help you jump, and you need to let it rest. Give your legs a couple days’ off, then come back again and try.
You can assist in recording your score by holding a piece of chalk in your had and using it to mark the wall. If the wall already has horizontal lines, such as a brick wall, it will be easier to mark your jump height. Have as many attempts as you need to get the best possible score. Practice your technique, as the jump height can be affected by how much you bend your knees before jumping, and the effective use of the arms.
In the 2011 NBA contest, Los Angeles Clippers power-forward Blake Griffin completed a self-pass off of the backboard prior to elbow-hanging on the rim. A number of other variants of the elbow hang have been executed, including a lob self-pass, hanging by the arm pit,[23] a windmill,[24] and over a person.[25] Most notable are two variations which as of July 2012, have yet to be duplicated. In 2008, Canadian athlete Justin Darlington introduced an iteration aptly entitled a 'double-elbow hang', in which the player inserts both forearms through the rim and subsequently hangs on both elbows pits.[26] Circa 2009, French athlete Guy Dupuy demonstrated the ability to perform a between-the-legs elbow hang; however, Guy opted not to hang on the rim by his elbow, likely because the downward moment could have resulted in injury.[27]
We’re confident you’ll love your Onnit supplements. If the product doesn't perform for you, however, we’re not gonna play games with you. Order any of our entry size supplements, and if you don’t like it, you can keep it! Notify our team, telling us why it wasn't a fit for you, and we’ll get you a refund right there on the spot - no return necessary. We just ask that you try it out for at least two weeks to give it a fair shot.
The vertical jump involves coordinated spine, hip, knee, and ankle extension to produce force in a vertical direction very quickly, while the muscles are shortening through to a very short muscle length. Since the time available for producing force is long compared to other athletic movements, this reduces the importance of rate of force development. Yet, the force-velocity relationship is the primary determinant of the amount of force that can be exerted at a given movement speed. Therefore, maximum force, velocity, and the force-velocity gradient all affect vertical jump height.
Four times a week, from April through October, I embarked on 90-minute explosive weightlifting sessions based on the years I’d spent working as a strength coach to club, college and professional volleyball players. Squats, squat jumps, deadlifts, lunges, box jumps, cleans, sprints. . . . Three or four days a week I visited one of my local blacktops, where I tried to dunk tennis balls on 10-foot rims or throw down basketballs and volleyballs on lower ones. By May 3—one month in—I could dunk a tennis ball on a 9' 10" rim. I considered this a better-than-good start, not realizing that compared to dunking a basketball, this tennis-ball jam was akin to a child scrawling the diagonal line that begins a capital A on his first day of learning the alphabet.

Early in my mission, my editor had given me a book, Jump Attack, by Tim Grover, personal trainer to Jordan, Dwyane Wade and myriad other NBA stars. I’d ignored it at first; I figured I knew plenty about how to jump higher. When I finally opened it last December, I was further dissuaded. The exercises Grover prescribed to increase one’s vertical leap looked either nonsensical (hold a deep lunge for 90 excruciating seconds, without moving) or sadistic (the series of rapid-fire bursts and landings that he’d named “attack depth jumps”). These self-immolations, Grover wrote, would last for three months.

Using only a lifting (concentric) phase for strength training exercises could also be more effective for improving vertical jump height than traditional, stretch-shortening cycle exercises under load, for two reasons. Firstly, using only a lifting phase involves faster rate of force development through higher rate coding, and this may increase high-velocity strength more over the long-term. Secondly, doing stretch-shortening cycle exercises under load *might* cause the tendons to increase stiffness to a greater extent. This would make the muscle lengthen more in the countermovement phase of a jump, and thereby reduce muscle force for a given countermovement depth.
“Put in the work. It’s muscle memory, first and foremost. Training­wise, people say, ‘You gotta do this, you gotta do that.’ I didn’t believe in that. I never worked on my legs in high school or middle school. I would just go through this routine over and over and over, visualizing that day when you dunk on the court. And then you live in that moment.”
The vertical jump involves coordinated spine, hip, knee, and ankle extension to produce force in a vertical direction very quickly, while the muscles are shortening through to a very short muscle length. Since the time available for producing force is long compared to other athletic movements, this reduces the importance of rate of force development. Yet, the force-velocity relationship is the primary determinant of the amount of force that can be exerted at a given movement speed. Therefore, maximum force, velocity, and the force-velocity gradient all affect vertical jump height.
×