Okay, listen up...
In the first place, Foley usually is recorded in a properly set up Foley stage. Several mics may be used to capture it. Yes, I'm aware that you don't have a Foley stage to work in; neither do I.
When you are working at the low/no/mini/micro budget level you have to think differently. A sound like your "somersault" is a linear event, not a snapshot. In cases like this you need to break it down into smaller pieces; yes, a tenth of a second at a time or even smaller if you need to. As we have mentioned
MANY times, you do not have to use the actual sound, you create sounds that fit the emotional impact of what you are seeing on the screen. So, let's see... You have the forward motion, the hands impacting the floor, the back impacting the floor, the butt impacting the floor, the feet impacting the floor, the back rolling up, the body standing back up. You record each of these pieces individually and then edit them together to match the picture. That's why it is called
SOUND EDITING.
This is also why you need to do your auditioning and editing in at least the semblance of an editing room with decent speakers; you have to be sure that your edited sounds will translate correctly.
BTW, a real Foley artist will not do an actual somersault, they will perform a motion that
sounds like a somersault.