Guelph IndyCar driver Robert Wickens has been rehabilitating after he was involved in a serious crash during a race over the summer.

In a video posted to Twitter, Wickens was working on moving himself from a flat surface to a wheelchair in a maneuver called a slide transfer.

“Did my first slide transfer as a paraplegic today. My upper body is getting stronger everyday,” the tweet read.

He went on to say that he was far from walking on his own.

Wickens was hospitalized after the violent August crash, during which his vehicle became airborne.

He required multiple surgeries on his injured spinal cord as a result.

In September, he addressed his followers on Twitter via video.

“I can promise you guys I’m going to work as hard as possible… to be back in a racecar as quickly as possible,” he said at the time.