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.

Kalkulator Indeks Kekuatan Reaktif

RSI anda daripada ketinggian lompatan dan masa sentuhan

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Ketinggian lompatan (cm)

ketinggian lompatan jatuh, cth. 30

Masa sentuhan tanah (ms)

milisaat di atas tanah, cth. 200

Kalkulator Indeks Kekuatan Reaktif

Indeks Kekuatan Reaktif ialah ujian padang utama bagi kuasa meletup dan reaktif untuk pelompat dan pelari pecut. Masukkan ketinggian lompatan jatuh dan masa sentuhan tanah anda, dan kalkulator ini akan memulangkan RSI anda — ketinggian lompatan dibahagi dengan masa sentuhan — serta jalur penilaian. Gunakannya untuk memantau latihan pliometrik, menguruskan keletihan neuromuskular, dan membandingkan keupayaan reaktif antara atlet.

Indeks Kekuatan Reaktif (RSI) mengukur sejauh mana anda menanggung dan menggunakan semula impak: ketinggian lompatan dibahagi dengan masa sentuhan tanah, daripada lompatan jatuh. RSI yang lebih tinggi bermaksud kitaran regang-pendek yang lebih meletup dan lebih anjal. Nilai panduan biasa: bawah 0.5 rendah, sekitar 1.0 purata, 1.5–2.5 baik, melebihi 2.5 elit. Ukur masa sentuhan dengan tikar lompat atau plat daya dan kekalkan ketinggian jatuh yang sama untuk menjejak perubahan.

Soalan Lazim

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.

Kalkulator Indeks Kekuatan Reaktif

Soalan Lazim

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