Apps by YMAA Publication Center, Inc.
Joint Locks by Rory Miller app icon

Health & Fitness

Joint Locks by Rory Miller

YMAA Publication Center, Inc.

Free download 5.00 · 1 storefront · 2 ratings In-app purchases
Open on Apple

About this app

Learn to Improvise Joint Locks Under Pressure with Rory Miller. Same videos as the Joint Locks DVD for much less! Video Chapters: • Intro • Principles • Hinge Joints • Ball and Socket Joints • Gliding Joints • Fingers • Principles Review • Lock Flow Drill • Escaping Locks • Conclusion In this 60-minute video app, Rory Miller makes the case that the problem is not with the locks themselves, but with our teaching methods. A principles-based approach allows relative beginners to improvise joint locks with one hour of training, something that many traditional approaches have failed to do with hundreds of hours. This app is available for free download with sample videos, and offers a single in-app purchase to access these joint lock lessons for the lowest possible cost. Joint locks are widely regarded as one of the most versatile physical tools-- they can move, immobilize, submit or severely injure a threat. They are also justifiably regarded as one of the more difficult of martial arts skills to implement in real life. Joint locks are NOT primary self-defense techniques. If you are in a position that requires self-defense you are justified in and likely need a higher level of force. However, if your job requires controlling violent people with minimal injury you must be good at joint locks and you must be able to improvise them under pressure. Rory Miller is a writer and teacher living peacefully in the Pacific Northwest, USA. He has served for seventeen years in corrections as an officer and sergeant working maximum security, booking and mental health; leading a tactical team; and teaching subjects ranging from Defensive Tactics and Use of Force to First Aid and Crisis Communications with the Mentally Ill. For fourteen months he was an advisor to the Iraqi Corrections System. He received a BS degree in Psychology; served in the National Guard as a Combat Medic (91A/B); earned college varsities in judo and fencing, and received a mokuroku in jujutsu. Mr. Miller is the author of several award-winning books and DVDs, including “Meditations on Violence”, “Facing Violence”, “Scaling Force”, and “Conflict Communications”. As an experienced martial artist and veteran correction officer, Rory Miller distills what he learned from jailhouse brawls, tactical operations, and ambushes to explore the differences between martial arts and the subject martial arts were designed to deal with: Violence. In his work, Miller introduces the myths, metaphors and expectations that most martial artists have about what they will ultimately learn in their dojo. This is then compared with the complexity of the reality of violence. Thank you for downloading our app! We are striving to make the best possible video apps available. Sincerely, The team at YMAA Publication Center, Inc. (Yang’s Martial Arts Association) CONTACT: apps@ymaa.com VISIT: www.YMAA.com WATCH: www.YouTube.com/ymaa

Latest release

What’s New

Version 1.0.3 Jan 16, 2023

App updated to the latest operating system, bugs fixed, crashes resolved. Please leave 5-star review to help launch this new app. Free sample videos. This app contains the entire video contents for a fraction of the price, with a single purchase per program.  We ask for your optional email to contact you about app improvements and other YMAA.com news. You can click past the email request. This app is made directly from the author and publisher. Thanks for your support!

Audience growth

Ratings growth

Steady
7-day gain +0
Ratings / day 0.0
30-day gain +0
US rating-count history
2 ratings
2 Aug 15, 2026 · 2 ratings Aug 15, 2026

Baseline captured. Growth appears after the crawler observes a changed rating count.

Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.

Price tracking

Price intelligence

1 captured event
Current Free
Historical low Free
Paid → free
Price history
Current Free
Free Aug 15, 2026 · Free Aug 15, 2026

First snapshot captured. The trend line starts after the next crawler price observation.

  1. First observed Aug 15, 2026 · 7:20 PM Free

Screenshots

Joint Locks by Rory Miller iPhone screenshotJoint Locks by Rory Miller iPhone screenshotJoint Locks by Rory Miller iPhone screenshotJoint Locks by Rory Miller iPhone screenshotJoint Locks by Rory Miller iPhone screenshot Joint Locks by Rory Miller iPad screenshotJoint Locks by Rory Miller iPad screenshotJoint Locks by Rory Miller iPad screenshotJoint Locks by Rory Miller iPad screenshotJoint Locks by Rory Miller iPad screenshot