This study looks at how a technique called **repetitive transcranial magnetic stimulation** (rTMS) affects how people move after they jump. rTMS uses magnetic fields to stimulate specific areas of the brain, like the **prefrontal cortex**, which helps with tasks like decision-making and behavior. The study compares people who have had a concussion with those who haven't to see if rTMS helps them land better after jumping. Participants will have two sessions at least 7 days apart. They will do jump tasks before and after receiving rTMS, and their tasks will involve both simple and more complex thinking challenges.

Key Points:

• Each session lasts around a day, and there are two sessions total.
• Participants must be physically active and aged 18-35.
• Those with certain health conditions or metal implants cannot participate.

The study is **single-blinded**, meaning participants don't know if they are getting the real or placebo stimulation. It's important to self-report any past concussions or health issues before joining.