Posts In: yoga app

Flashbacks from Yoga One founders Amy and Michael Caldwell on how they nurtured a family-owned business and a thriving yoga community.

The vast warehouse was drafty and cold. Perfect for Amy. She was dressed in a black bodysuit with a hood and covered in electrodes. Over the next few hours, Amy generated plenty of heat as she demoed over 190 yoga poses. Total badass!

It was the spring of 2011 (I believe) and a couple of weeks prior, we had received a phone call from Niall Johnson at Scotland based 3D4Medical inquiring if we were interested in collaborating on a yoga app. Yes! Following a brief brainstorming session, production got underway. I was responsible for monitoring alignment and angles. 

Pendulum, the motion capture crew, was known for helping to render high quality video games. They demonstrated their skill creating a superhero type avatar for Amy that was projected onto a large screen as she did the poses. Ultimately, for the iYoga Premium app, Pendulum processed over 340,000 frames of motion capture, rendered over 50 million frames and delivered 8.7 hours for the final video to bring the virtual yoga teacher Amy to life!

“It was surreal to see my movements in real time displayed on a huge screen,” Amy said. “The whole process reinforced for me that yoga is as much a moving meditation as it is a physical activity. The stage was freezing and the motion capture suit was a little constricting. The conditions were challenging, but I quickly got into a rhythm and focused on my breath to stay centered.” Amy was exhausted but exuberant about the project’s future. 

Yet there was more work to be done. Amy recorded the voice over instruction for each and every pose and each and every sequence she put together. In the end, there are 16 different sequences students can follow, or you can create your own – all with Amy’s vocal guidance.

Finally, Amy and our friend, physical therapist, and fellow yogi Rachel Krentzman (author of Yoga for a Healthy Back and Scoliosis, Yoga Therapy and the Art of Letting Go) broke down the anatomy of each pose. They notated when muscles were contracting, stretching, or both – one by one, for nearly 200 poses! They included the English and Sanskrit pose names, contraindications, pose difficulty level and category, ie.  standing, seated, etc. Needless to say, it was an intense labor of love.

Upon release, iYoga Premium had over 15,000 downloads in the first month and topped Apple’s world-wide Health and Fitness paid app list. The app received positive press in Yoga Journal and Amy was interviewed and featured in Pacific Magazine, among others. In 2016, iYoga Premium won Health Line’s Best App award.

There were some technical limitations, for example, the avatar always needs to come back to Tadasana (mountain poses) during the sequencing.  

Some years later, we came full circle and held a class at the studio and projected the app onto the wall and let virtual Amy lead the class with actual Amy offering enhancements.

Yoga One Celebrates the Release of iYoga Premium, Tops the Best-Selling Health and Fitness Applications Worldwide

iYoga Premium is the exciting new application released by 3D4Medical in collaboration with Yoga One, an award-winning yoga studio located in downtown San Diego. Over a year in development, iYoga Premium combines technical anatomic information with precise alignment in over 190 yoga poses. In less than a month, the iYoga Premium application reached the number one spot for best-selling health and fitness applications worldwide on Apple’s app store.

Amy Caldwell, co-founder and head instructor at Yoga One, worked closely with the Scotland-based company 3D4Medical to bring yoga postures (asanas) to life under a detailed anatomical gaze. Using 3D motion capture technology, Caldwell’s movements were recorded as she moved into and out of yoga poses then technicians animated the movements to create a life-like muscular-skeletal avatar.

The journey began with Caldwell donning a motion capture suit covered with electrodes. She was then filmed in 360 degrees on Pendulum’s 2,500 sq/ft optical motion capture stage over a 3-day period where she performed nearly 200 yoga poses. Caldwell who has twice appeared on the cover of Yoga Journal (the number one yoga publication in America) was tasked with executing the poses with optimal anatomical alignment for up to 8 hours a day.

“It was surreal to see my movements in real time displayed on a huge screen,” Caldwell said. “The whole process really reinforced for me that yoga is as much a moving meditation as it is a physical activity. The stage was freezing and the motion capture suit a little constricting. The conditions where challenging to practice yoga, but I quickly got into a rhythm and focused on my breath to stay centered.” Caldwell admits that by the third day she was exhausted but exuberant about the project’s future. “It was such a unique experience and the technicians at Pendulum were very professional and helpful.”

The next step for Caldwell was to identify the muscles as they contracted and stretched in each and every pose. 3D4Medical is a leading medical visualization and education software developer and a longstanding contributor to AppleStore’s medical application market. They wanted the app to give the user a more in-depth look into the major muscle groups that are exercised during a yoga routine.

Caldwell and anatomy expert Rachel Krentzman of Embody Physical Therapy and Yoga meticulously reviewed the footage and notated when each muscle turned on and off. Caldwell says “It was a pleasure teaming up again with someone as knowledgeable as Rachel. She leads the anatomy portion of Yoga One’s annual teacher training course. Rachel and I agreed, the process reaffirmed how much we love this practice!”

The voice over instruction that accompanies each pose was recorded at Studio West. Caldwell re-visited each posture and the pre-set sequences of poses recording anatomical notes as well as alignment-based instruction. “I have a pretty deep voice and really got to hone my enunciation and tone. I think I might have a career in the voice over field,” Caldwell joked.

More info on the process:

San Diego based Pendulum created 884 high-definition videos for the iYoga Premium application, featuring Caldwell’s 3D anatomical model performing over 190 yoga poses from multiple viewing angles.  This was made possible thanks to Pendulum’s incredibly accurate active-LED PhaseSpace motion capture system. Ultimately, Pendulum processed over 340,000 frames of motion capture, rendered over 50 MILLION frames (yes, you read that correctly), and delivered 8.7 hours of final video to bring the virtual yoga teacher to life!