Many models have been constructed to identify the most important muscles in the vertical jump, with some conflicting results. Some have suggested that movement is governed by the gluteus maximus and quadriceps, while others have proposed that the hamstrings, quadriceps, and calf muscles are key. Importantly, no model has yet explored the role of the adductor magnus, which is the primary hip extensor in the barbell squat. This is relevant, as many studies have found that the squat is an ideal exercise for improving jump height, and maximum back squat strength is closely associated with vertical jump performance among athletes.
Parte 1, comienza y termina con un capítulo sobre psiquiatría y la terapia de choque, los experimentos encubiertos realizados por el psiquiatra Ewen Cameron en connivencia con la CIA: cómo fue un éxito parcial en la distorsión y regresión de la personalidad original de los pacientes, pero ineficaz en el desarrollo de una nueva personalidad mejor. Se hace un paralelismo con la terapia de choque económico, incluida una digresión sobre cómo los organismos gubernamentales se aprovechan de algunas de las lecciones aprendidas para crear más eficaces técnicas de tortura. La tortura, según Klein, a menudo ha sido una herramienta esencial para las autoridades que han aplicado las reformas agresivas del mercado libre y se hace hincapié en esta afirmación a lo largo del libro. Ella sugiere que por razones históricas el movimiento de derechos humanos ha retratado a menudo la tortura sin explicar su contexto, lo que ha hecho que con frecuencia aparecen como hechos inútiles de sadismo. El segundo capítulo presenta a Milton Friedman y su Escuela de Economía de Chicago, que Klein describe como líder de un movimiento comprometido con el libre mercado con las mismas regulaciones que antes de la Gran Depresión.
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.
I went through this progression, too. I went from touching the middle of the net at 12 years old, to dunking a basketball at 14 years old, to doing serious acrobatic 360-degree dunks at 17 years old. In college, my personal record for the vertical leap was 40 inches. At my peak, I was able to touch the top of the square on a regulation backboard, about 11.5 feet from the ground. Even now, in my thirties, I can dunk a basketball while standing underneath the basket—no run up required. I owe it all to the power of the vertical jump.
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.
For improving vertical jumping ability, the back squat and jump squat have been used for many years with great success. Depending on the exact force-velocity profile of the athlete, either back squats or jump squats should be effective for improving vertical jump height. Even so, exercises that shift the load towards the center of mass of the body, such as hex bar deadlifts and weighted vest jumps could be superior.
In 2004, as a high school senior, Candace Parker was invited to participate in the McDonald's All-American Game and accompanying festivities where she competed in and won the slam dunk contest. In subsequent years other women have entered the contest; though Kelley Cain, Krystal Thomas, and Maya Moore were denied entry into the same contest in 2007. Brittney Griner intended to participate in the 2009 McDonald's Dunk Contest but was unable to attend the event due to the attendance policy of her high school. Breanna Stewart, at 6'3" (191 cm), Alexis Prince (6'2"; 188 cm), and Brittney Sykes (5'9"; 175 cm) competed in the 2012 contest; Prince and Sykes failed to complete their dunks, while Stewart landed two in the first round but missed her second two attempts in the final round.
The following data were recorded every 6 hours for 48 hours, every 8 hours on days 3, 4, and 5, and once a day on days 6, 7, 14, 21, and 28: vital signs, hemodynamic variables (including systolic and diastolic arterial pressures, heart rate, central venous pressure, and, when possible, pulmonary-artery pressures), cardiac output, arterial and mixed-venous (or central venous) blood gas levels, doses of vasoactive agents, and respiratory conditions. Biologic variables, data on daily fluid balance, microbiologic data, and antibiotic therapy were recorded daily for the first 7 days and then on days 14, 21, and 28.
Dunk types reflect the various motions performed on the way to the basket. They start with the basic one- or two-hand forward-facing dunk and go on through various levels of athleticism and intricacy. Discrete dunk types can be modified by appending other moves; for example, a player who passes the ball off the backboard, catches it in the air, and executes a double-pump dunk would be said to have completed a "self-pass off the backboard, double pump".
The between-the-legs dunk was popularized by Isaiah Rider in the 1994 NBA slam dunk contest, so much so that the dunk is often colloquially referred to as a "Rider dunk" — notwithstanding Orlando Woolridge's own such dunk in the NBA contest a decade earlier. Since then, the under-the-leg has been attempted in the NBA contest by a number of participants, and has been a staple of other contests as well. Its difficulty — due to the required hand-eye coordination, flexibility, and hang-time — keeps it generally reserved for exhibitions and contests, not competitive games. Ricky Davis has managed to complete the dunk in an NBA game, but both he and Josh Smith have botched at least one in-game attempt as well.
The things I had going for me: an understanding spouse; a modicum of foot speed and leaping ability, flashed during the occasional Motrin-supported pickup game; proximity to one of the best training centers in the world; and, again, an understanding spouse. The forces working against me made for a longer list and included (but were far from limited to) my average hand size and arm length, a lower-back injury that I suffered while playing semipro football in 2009 and my age. I was 42.
The player approaches the basket and leaps as they would for a generic dunk. Instead of simply dunking the ball with one or two hands, the player allows their forearm(s) to pass through the basket, hooking their elbow pit on the rim before hanging for a short period of time. Although the dunk was introduced by Vince Carter in the 2000 NBA Slam Dunk contest, Kobe Bryant was filmed performing the dunk two years earlier at an exhibition in the Philippines. Colloquially, the dunk has a variety of names including 'honey dip', 'cookie jar', and 'elbow hook'.
Typically, struts consists of a coil spring to support the vehicle's weight, a strut housing to provide rigid structural support for the assembly, and a damping unit within the strut housing to control spring and suspension movement. The bottom of the strut body attaches to the steering knuckle, which in turn connects to a lower control arm through a lower ball joint.
To build strength in the legs that will be compatible with the speed developed through successful plyometrics drills, squat and lunge exercises are important components. Squats are performed with free weights, where the athlete uses a weighted bar to carry out the exercise. The additional weight will be supported by the body through the abdominal, lumbar (low back), and gluteal muscles, in addition to the legs. This form of exercise permits the strengthening of the legs in conjunction with enhancing the core strength of the body, essential to the balance necessary to have the several muscle groups involved in leaping work in harmony.