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.
Athletes often do depth jumps with two plyo boxes: one to step off of and another to jump onto. Essentially, it’s a depth jump into a box jump. When doing this variation, make sure to leave enough room between the boxes to allow you to land and jump safely (3–5 feet between boxes should work). To advance within this progression, increase the height of the second box gradually as you develop more strength and power.
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.
When performing a vertical jump, the athlete exerts force at the low back, hip, knee, and ankle joints. The spine flexes as the athlete squats downwards, and then is extended by the spinal erectors over the course of the jump. The hip extensors (gluteus maximus, hamstrings, and adductor magnus) work to move the trunk and the thigh apart, which pushes the torso up and backwards. Meanwhile, the knee extensors (quadriceps) contract to extend the knee, and the calf muscles contract to move the shin backwards, towards the vertical.
At the competitive level (i.e., the NFL and NBA combines), vertical leap is measured using a “jump tester”—a tripod with a series of thin plastic sticks one inch apart. If you have access to this equipment, it’s your best bet for getting an accurate measurement. A cheaper, more feasible option is to do your jump next to a wall and mark the highest point you touch with a piece of chalk.
Then you need to hold the chalk in your right hand, and then you need to jump from the same starting position (without a run-up). To do the jump, you’ll need to flex (bend) at the hip and knee joints and use your arms for momentum. At the top of the jump you’ll mark the wall (or chalk board) with the chalk. The score for the jump is the difference between the standing height and the jump height (in cm). The highest of three separate trials is recorded as your max score.
Yet, rate of force development is likely less important for vertical jumping than for faster athletic movements, such as sprinting. This is because the time that is available for force production is *ten times* longer in the vertical jump than in sprinting. Sprinters often take their foot off the ground before their lower body muscles have achieved maximum force (which takes approximately 150ms), but this early period of rising force production plays only a very small role during vertical jumping.
Aside from squats, the exercises below are considered some of the best bodyweight plyometrics you can do to help improve the fast-twitch muscle fibers that enable you to jump higher and run faster. When it comes to vertical jump, plyometrics are a key. A review in the "British Journal of Sports Medicine" looked at 26 research studies that tested the effects of plyometrics on vertical jumps and found that plyometrics increased vertical jump by 8 percent. Another study reported that plyometrics helped professional athletes increase their vertical leap by 23 percent, improve their agility by 8 percent, their balance by 5 percent, and their time by 0.30 seconds on the 20-meter sprint.
Darryl Dawkins of the Philadelphia 76ers was notorious for two glass-shattering dunks in 1979 resulting in the league threatening to fine him and eventually installing breakaway rims.[42] Twice in his rookie season (1992–93) during games, center Shaquille O'Neal dunked so hard that he broke the hydraulic support of one goal standard (against the Phoenix Suns) and broke the welds holding up another goal standard, causing the basket to break off and fall to the floor (against the New Jersey Nets), although in neither case did the glass break. This resulted in reinforced backboard supports as well. During that same season, New Jersey's Chris Morris shattered a backboard in a game against the Chicago Bulls (the most recent shattered-backboard incident in the NBA to date). The NBA has made shattering the backboard a technical foul, although it will not count towards a player's count of seven that can draw a suspension, or two towards ejection from a game, and it counts towards a player's count of six personal fouls. This has assisted in deterring this action, as it can cost the team points.

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.
El Premio Nobel y ex economista jefe del Banco Mundial, Joseph Stiglitz, escribió una reseña de La doctrina del shock para el New York Times, llamando al paralelismo entre la terapia de choque económico y los experimentos psicológicos realizados por Ewen Cameron "sobredramático y poco convincente" y afirmando que " Klein no es una académica y no puede ser juzgada como tal. Hay muchos lugares en su libro donde se simplifica en exceso." Sin embargo afirma que "la cuestión en contra de estas políticas es aún más fuerte que la que Klein hace" y que el libro contiene "una rica descripción de las maquinaciones políticas necesarias para obligar a desagradables políticas económicas en los países en resistencia."2​ Paul B. Farrell del Dow Jones Business News afirmó que "hay que leer lo que puede ser el libro más importante sobre la economía en el siglo 21".3​ John Gray escribió en The Guardian: "Hay muy pocos libros que realmente nos ayudan a comprender el presente. La doctrina del shock es uno de esos libros."4​ William S. Kowinski del San Francisco Chronicle escribió: "Klein podría haber revelado la narrativa de nuestro tiempo",5​ y fue nombrado uno de los mejores libros de 2007 por el Village Voice, Publishers Weekly,6​ The Observer,7​ y Seattle.8​ El irlandés Times describe los argumentos de Klein como "peso" junto a los informes del Dr. Tom Clonan: "sistemáticamente y con calma se muestra al lector" la forma en que los neoconservadores estaban íntimamente ligadas a los eventos sísmicos que "dieron lugar a la pérdida de millones de vidas". Cerca del final de la revisión del Dr. Clonan, ofrece una síntesis de que el argumento central de Klein es que el proyecto neoconservador no se trata de "la implantación de la democracia", sino una receta represiva por la maximización del beneficio global para una pequeña élite. "Los neoconservadores ven como ideal la proporción de super-ricos/pobres permanentemente ligada a una súper clase de oligarcas empresariales y sus compinches políticos que son el 20%". El 80% restante sería la población del mundo, los pobres "desechables", que subsisten en la "miseria planificada", que no pueden pagar una vivienda adecuada, la educación o la asistencia sanitaria privatizada.9​

I thought I needed a rim. But what I found I really needed was a constellation of them. Having choices would prove useful because of the daytime obstacles, like elementary school PE students and our own kids’ after-school activities; and nighttime obstacles, like chain-link and padlocks, that I encountered. My training windows were narrow, so I learned to employ these outdoor rims strategically, the way the skateboarders in Dogtown and Z-Boys timed their secret sessions at drained swimming pools. The six or seven courts nearest our house featured rims that measured anywhere between 9 feet and 10' 2", a variance that allowed for different kinds of practice. The blisters and flayed calluses that soon bloodied my hands instructed me in the value of breakaway rims—the less rust the better. Because a Snap Back wasn’t always available, local residents may have spotted a sweaty forty­something man rubbing Vaseline on his hands in the corner of their child’s favorite playground last year. Sometimes he wore a weight vest that made him look like a jihadist. What I’m saying is, Thanks for not calling the cops.

The player approaches the basket and obstruction, and then leaps. During flight, some portion of the player's body is elevated above the obstruction. This may entail raising the legs or some portion thereof in-air to soar over the obstruction. In other instances, the trunk-moves over an obstruction as the legs pass around it. Common obstructions include: motor vehicles; crouched, seated or standing person(s); ball rack; or other available objects.
Don't do jumping exercises 7 days a week. Four or five days per week is enough. If you do it every day, you may give up after a week or two. The idea is to keep exercising for months, or years, consistently. Note that we have not organized an actual jumping program. Inside Hoops is providing exercises that should help your fitness and leaping ability.

Another aspect to look at for any potential dunkers is flexibility. I'm about 6'4 and 21. In high school, I, like many of you on here, worked on jumping and lifting to gain power. I had some decent strength, but the flexibility of a toothpick. Once I got out of high school and got more interested in fitness, I saw how much that affected me. If you can't touch your toes or only squat 8 inches down, this is a great place to start working on your flexibility.

But you know what? Because these help with your jumping, you will become an amazing rebounder, blocker, and, well, dunker! In 2016, according to MaxPreps, I was 14 in the country in average blocks per game (National Basketball (2016-17) Blocks Stat Leaders, I’m 14th ;P). I had two triple-doubles. No, not points, rebounds, and assists, but points, rebounds, and BLOCKS.
My warmup on March 29, following a day of recovery, left me feeling hoppier than I’d expected, and not nearly as achy. After 10 devastating near misses, and several others that weren’t as close, Jeff lofted the best lob I would see during this journey. I leaped, controlled it with one hand and—boodaloomp—in and out. I could have wept. “You got this!” Jeff implored. “You know you got this!”
This is a high quality gear set for the next generation recoil shock series.  They only use one gear set through out the entire range, so this will fit all NEXT gen guns. This is a extremely well made piece of kit, This is possibly one of the strongest gear sets on the market, i would say the main benefit over other gear sets is its tuning option, you can by it in both single torque which is a little over the standard gear ratio and the double torque which is a lot over the standard ratio. Both provide increased torque up on the gun ie less effort to turn the spring, which in turn gives you increased battery life and and faster trigger response, sacrificing a little ROF. Although technically they should see a decrease in ROF because of the ratio, ive actually seen increases in ROF because of how efficient these gears are and because they are balanced.  Expensive gears but a very awesome piece of kit if these where cheaper they would no doubt be in ever ones guns.. no exceptions.
“There’s something about dunking a basketball that lures us in,” he said, reflecting on his first jam, during lunch period his sophomore year at De La Salle High in Concord, Calif., back when his driver’s license read 5' 11", 112 pounds. “It stokes the imagination. It’s something you always dream of doing. I have a friend whose father, at age 50, is trying to dunk.”

Shock absorbers are basically oil pumps. A piston is attached to the end of the piston rod and works against hydraulic fluid in the pressure tube. As the suspension travels up and down, the hydraulic fluid is forced through tiny holes, called orifices, inside the piston. However, these orifices let only a small amount of fluid through the piston. This slows down the piston, which in turn slows down spring and suspension movement.

The two-hand backscratcher finish can exert tremendous force on the basket. In 1979, Darryl Dawkins twice shattered NBA backboards with tomahawk dunks leading to a quickly-enacted rule making it an offence to break the backboard.[citation needed] Technology has evolved to adapt to the increased strength and weight of players to withstand the force of such dunks, such as the breakaway rim (introduced to the NBA in 1981) changes to the material used for the backboards, and strengthening of the goal standards themselves.

Jonathan Chait escribió en The New Republic que Klein "presta, sorprendentemente (pero, habida cuenta de sus premisas, no es de sorprender), poca atención a las ideas de derecha. Ella reconoce que el neoconservadurismo se encuentra en el corazón del proyecto guerra de Irak, pero no parece saber qué es el neoconservadurismo, y no hace ningún esfuerzo para averiguarlo".16​
In this multicenter, randomized trial, we assigned patients with shock to receive either dopamine or norepinephrine as first-line vasopressor therapy to restore and maintain blood pressure. When blood pressure could not be maintained with a dose of 20 μg per kilogram of body weight per minute for dopamine or a dose of 0.19 μg per kilogram per minute for norepinephrine, open-label norepinephrine, epinephrine, or vasopressin could be added. The primary outcome was the rate of death at 28 days after randomization; secondary end points included the number of days without need for organ support and the occurrence of adverse events.
When I was growing up, basketball was big in my neighborhood. Everyone wanted to be able to dunk on a regulation 10-foot high basket and, thus, everyone focused on improving their vertical jump. The progression usually went a little something like this: touch the rim, grab the rim, hang on the rim, dunk with a volleyball and, finally, dunk with a basketball!
Hi I'm 14 turning 15 this year with a height of 5'8-5'9 and a standing reach of 7'5. Right now I am 190 pounds.I know I'm not physically fit. I can touch the net by just standing and jumping but not the rim. I really want to dunk since my friends can reach almost the rim while i can't even if I'm taller than them. Is it an impossible dream to dunk before my high school life ends? Also it will be nice to hear on how to lose weight. Since people tease me on how fat I am. But i am currently trying to lose weight and lost 14 pounds already. The only problem is my asthma which is making it hard for me to do physical activities.

My son asked me to get book to help improve his jump and was thrilled with the terrific tips it gave him. According to him, this book covers all the important basics and is a must-read for anyone looking to increase their athletic performance. The exercises are described in a clear, easy to follow manner...and now that I've read it as well I'm happy to say, I understand more of what my son is always going on about! ;)

The materials and information provided in this presentation, document and/or any other communication (“Communication”) from Onnit Labs, Inc. or any related entity or person (collectively “Onnit”) are strictly for informational purposes only and are not intended for use as diagnosis, prevention or treatment of a health problem or as a substitute for consulting a qualified medical professional. Some of the concepts presented herein may be theoretical.
variations: The vertical jump test can also be performed using a specialized apparatus called the Vertec. The procedure when using the Vertec is very similar to as described above. Jump height can also be measured using a jump mat which measures the displacement of the hips. To be accurate, you must ensure the feet land back on the mat with legs nearly fully extended. Vertical jump height can also be measured using a timing mat. The vertical jump test is usually performed with a counter movement, where there is bending of the knees immediately prior to the jump. The test can also be performed as a squat jump, starting from the position of knees being bent. Other test variations are to perform the test with no arm movement (one hand on hip, the other raised above the head) to isolate the leg muscles and reduce the effect of variations in coordination of the arm movements. The test can also be performed off one leg, with a step into the jump, or with a run-up off two feet or one foot, depending on the relevance to the sport involved. For more details see vertical jump technique.