反應力量指數計算器
由跳躍高度與觸地時間得出的你的 RSI
拍張照片，AI 自動記錄飲食 — 飲食與運動，一個 App 搞定。免費下載 App落地跳的高度，例如 30
在地面上的毫秒數，例如 200
反應力量指數計算器
反應力量指數是跳躍與短跑運動員衡量爆發性、反應性力量的常用現場測試。輸入你的落地跳高度與觸地時間，本計算器會回傳你的 RSI——跳躍高度除以觸地時間——以及對應的評級區間。可用它監控增強式訓練、管理神經肌肉疲勞，並比較運動員之間的反應能力。
反應力量指數（RSI）衡量你承受並再利用衝擊的能力：在落地跳中，以跳躍高度除以觸地時間。RSI 越高，代表拉長–縮短週期越具爆發力、越有彈性。常見參考值：低於 0.5 偏低，1.0 左右為平均，1.5–2.5 為良好，高於 2.5 為菁英水準。請以跳墊或測力板測量觸地時間，並保持落下高度一致以追蹤變化。
常見問題
- What is the Reactive Strength Index (RSI)?
- RSI measures explosive, reactive power, how well you absorb and rebound from landing. It is calculated from a drop jump and reflects your ability to produce force quickly, a key quality for sprinting, jumping, and other fast stretch-shortening movements.
- How is RSI calculated?
- RSI = jump height / ground contact time, both during a drop jump. Enter your jump height and the time your feet spend on the ground between landing and take-off, and the calculator returns your RSI along with a rating.
- What is a good RSI value?
- RSI is typically expressed in metres per second; values around 1.5-2.0 are good and above roughly 2.5-3.0 indicate excellent reactive strength, while below 1.5 suggests room to improve. The aim is high jump height with minimal ground contact time.