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Vertical Jump Rules and a +5 STR modifier
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<blockquote data-quote="Brainwatch" data-source="post: 9186548" data-attributes="member: 6683885"><p>Actually those number don’t sound too bad when we start comparing them to some real life athletes.</p><p></p><p>For reference:</p><p></p><p>a 20 STR gives a standing high jump of (3+5)/2=4 feet or 48 inches.</p><p></p><p>a 16 STR gives a standing high jump of (3+3)/2=3 feet or 36 inches.</p><p></p><p>Now, for the 2022/2023 Season, the average high jump of the NBA was 39.2 inches. So a 16STR PC has a jump pretty much average in the NBA. The 20STR PC with their 48-inch vertical jump ties the highest ever vertical jump for an NBA player (Micheal Jordan & Darrel Griffith).</p><p></p><p>Now turning towards the video, I am going to make the following assumptions:</p><p></p><p>1: Center of Mass (CoM) is located at half the height of the body (makes math easier)</p><p></p><p>2: To successfully land on their feet, the person needs to lift their CoM an additional 18 inches over the mat.</p><p></p><p>3: I estimate the height of the athlete in the video to be approximately 5 ft 6inches (66 inches), based on the height of the mat and the where the mat comes up to in relation to their body. This puts their CoM at a height of 33 inches.</p><p></p><p>We are told the height of the mat is 134 cm. Which converts to approximately 52.75 inches. So I will round that up to 53”</p><p></p><p>Now, based on our #2 assumption, the athlete needs to raise their CoM to a total height of (53+18) 71 inches.</p><p></p><p>Since in our #3 assumption we’ve estimated the starting CoM at 33 in, the athlete needs to raise their CoM (71-33) 38 in.</p><p></p><p>This is just above the high jump of a 16STR PC, but doable by an 18STR PC.</p><p></p><p>If we make a PC with same height as assumed for the athlete in the video, 5ft 6in (66in), and give them a 20STR, the can make this jump onto a mat of 63in</p><p></p><p>33 (starting height of CoM) +48 (jump height) -18 (overage required for landing).</p></blockquote><p></p>
[QUOTE="Brainwatch, post: 9186548, member: 6683885"] Actually those number don’t sound too bad when we start comparing them to some real life athletes. For reference: a 20 STR gives a standing high jump of (3+5)/2=4 feet or 48 inches. a 16 STR gives a standing high jump of (3+3)/2=3 feet or 36 inches. Now, for the 2022/2023 Season, the average high jump of the NBA was 39.2 inches. So a 16STR PC has a jump pretty much average in the NBA. The 20STR PC with their 48-inch vertical jump ties the highest ever vertical jump for an NBA player (Micheal Jordan & Darrel Griffith). Now turning towards the video, I am going to make the following assumptions: 1: Center of Mass (CoM) is located at half the height of the body (makes math easier) 2: To successfully land on their feet, the person needs to lift their CoM an additional 18 inches over the mat. 3: I estimate the height of the athlete in the video to be approximately 5 ft 6inches (66 inches), based on the height of the mat and the where the mat comes up to in relation to their body. This puts their CoM at a height of 33 inches. We are told the height of the mat is 134 cm. Which converts to approximately 52.75 inches. So I will round that up to 53” Now, based on our #2 assumption, the athlete needs to raise their CoM to a total height of (53+18) 71 inches. Since in our #3 assumption we’ve estimated the starting CoM at 33 in, the athlete needs to raise their CoM (71-33) 38 in. This is just above the high jump of a 16STR PC, but doable by an 18STR PC. If we make a PC with same height as assumed for the athlete in the video, 5ft 6in (66in), and give them a 20STR, the can make this jump onto a mat of 63in 33 (starting height of CoM) +48 (jump height) -18 (overage required for landing). [/QUOTE]
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