Why figure skating landings hit the skeleton like a hard sprint, how rotation actually works, and what harness training really does.
The question that comes up as soon as your first jumps start working: why does a clean jump still hurt the next day? The honest answer: every landing is a small, forceful impact — studies estimate the vertical force on landing at roughly five to eight times your body weight. At 60 kg, that means your skeleton absorbs an impact on every landing comparable to hitting flat ground from nearly two meters up.
How does rotation even happen? Not in the air — the setup happens on the ground. As you transition into the jump, you pull your arms and legs tight to your body; the amount of angular momentum stays the same, but because it's concentrated into a smaller radius, your rotational speed goes up significantly — the same principle a skater uses to accelerate in a spin.
And the numbers show just how thin the margin is: a skater rotating at around 300 revolutions per minute needs to jump roughly 43 cm high to complete a triple jump — for the fourth rotation of a quad, that's already around 76 cm. A few centimeters more or less of takeoff height directly decides whether the landing holds or the jump comes up "under-rotated."
Angular momentum is built up before takeoff, through footwork and the arm swing during the entry. What happens in the air after that is mostly one thing: arms and legs are pulled tight to the body, converting the same angular momentum into higher speed on a tighter radius.
More rotations need more airtime — and that only comes from more takeoff height. Going from three to four rotations means the difference between roughly 43 and 76 cm of takeoff height at the same rotational speed. That's why a quad isn't "spinning a bit faster" — it's a whole different athletic level.
Harness and spinner systems suspend you on a training line so you can practice rotation and air position without falling on the ice on every attempt. That removes fear of falling from the learning process and lets you focus fully on timing and body tension.
A stiff boot shaft with strongly restricted ankle mobility and a raised heel is considered a factor that further increases landing forces. That's one reason boot choice (see the equipment guide) directly connects to injury risk, not just comfort.
The more revolutions a jump has, the higher the landing force. That's one reason coaches keep an eye on the number of jump attempts per session — more on that in the later guide on injury patterns.
Landing forces of roughly five to eight times body weight explain why overuse injuries are so common in figure skating — more on that in a dedicated injury guide. So pay special attention to warming up, sufficient recovery between intense jump series, and landing with a bent knee instead of a straight leg.
A boot that's too stiff makes the problem worse, since it restricts the natural shock absorption in the ankle. Speak up early about pain in the foot, knee or lower back — it's often an early warning sign, not a sign of "not being tough enough."
Have someone film you from the side regularly during jump training and watch the takeoff phase, not just the landing. Most technical problems arise in the last two steps before takeoff, not in the air itself.
A trick often overlooked: train core strength (abs and trunk muscles) specifically off-ice. It helps cushion landing forces and keep rotation stable in the air — both pay off directly in cleaner, safer landings.
Estimates put vertical force at roughly five to eight times body weight per landing. At 60 kg, that's roughly comparable to hitting the ground from nearly two meters up — no wonder overuse is such a big topic in jump training.
Angular momentum is built before takeoff through leg and arm work. In the air, you pull your arms and legs tight to your body, converting that same angular momentum into higher rotational speed on a smaller radius.
A harness suspends you on a training line so you can practice rotation and air position without crashing hard onto the ice on every failed attempt. That removes fear of falling from the learning process and speeds up learning new jump levels.
Because the extra rotation needs significantly more airtime — at the same rotational speed you need to jump roughly 76 cm instead of 43 cm high for a quad. That's a completely different athletic level, not a small step up.
Figure Skating: Spins, Positions and Centering