Personalized Coaching & Data Use Notice
This Personalized Coaching and Data Use Notice (the "Notice") explains how Mass in Motion LLC ("we," "us," or "our") uses your training, nutrition, sleep, recovery, body, and performance information to learn how you personally respond and deliver Personalized Coaching directly back to you.
This Notice supplements our Privacy Policy, Consumer Health Privacy Notice, and Terms of Service.
1. What is Personalized Coaching?
Personalized Coaching is an integrated capability in Mass in Motion designed to continuously identify narrow, reproducible, within-athlete relationships between your specific exposures (such as pre-workout meal timing, carbohydrate intake, caffeine cutoff, and recovery state) and your subsequent training performance and recovery outcomes.
Purpose: To analyze your information to understand how you individually respond and deliver personalized insights (“SOREN Insights”), response curves, and contextual coaching notes back to you.
2. Consent Separation: Coaching vs. Population Research
Mass in Motion maintains two separate, independent permissions:
- Personalized Coaching (This Notice): Authorizes Mass in Motion to analyze your data exclusively to generate SOREN Insights, response curves, and contextual coaching notes for your own coaching experience.
- Help Improve Algorithms (Optional Research Consent): A separate, optional permission that allows eligible information to be included in broader population research, model development, and statistical analysis to improve Mass in Motion for other athletes.
These permissions are independent. Agreeing to Personalized Coaching does not enroll your data in population research or broader model training. Declining Help Improve Algorithms does not prevent you from receiving Personalized Coaching.
3. Categories of Information Processed
To provide Personalized Coaching, Mass in Motion may analyze:
- Training & Exercise: Workout history, specific exercises performed, sets, repetitions, load, weight, Reps in Reserve (RIR), Rate of Perceived Exertion (RPE), session type, workout completion, running and endurance data (distance, duration, pace, heart rate), including runs recorded on the Mass In Motion watch app or synchronized from Apple Health, program context, and training load.
- Nutrition & Timing: Foods, meals, calories, macronutrients (protein, carbohydrates, fats), relevant micronutrients, exact meal start and finish timestamps, pre-workout and post-workout timing windows, caffeine intake and timing, and hydration data where logged.
- Recovery & Readiness: Daily readiness scores, fatigue, muscle soreness, recent training load, recovery metrics, recovery measurements from a connected device or platform you authorize (such as heart rate variability, resting heart rate, and step counts), and subsequent performance.
- Sleep: Sleep duration, sleep timing, sleep schedule consistency, and relevant authorized sleep metrics.
- Body & Performance: Body weight, weigh-in timing, estimated one-repetition maximums (e1RM), top-set performance, pace-at-heart-rate relationships, and performance decay metrics.
- Derived Information: Training-response patterns, nutrition-response patterns, meal-timing relationships, recovery characteristics, sleep/performance relationships, response curves, individualized estimates, learned ranges, and confidence estimates.
4. Disclosure of Automated Statistical Analysis & Machine Learning
Mass In Motion may use automated statistical analysis, including machine-learning methods, to identify patterns and relationships in your information for the purpose of providing Personalized Coaching to you.
These methods evaluate within-athlete historical data to discover dose, timing, and context relationships that support your training and recovery.
5. Deterministic Programming Authority
Personalized Coaching may identify patterns and relationships in your data, but machine-learning systems do not independently generate your workout prescriptions. Mass In Motion’s deterministic programming algorithms remain responsible for exercise selection, sets, repetitions, loads, progression, running prescriptions, and scheduling. "ML learns. Algorithms program."
SOREN Insights do not directly alter programming decisions, safety checks, deload rules, or injury constraints. All workout programming decisions remain under the authoritative control of Mass in Motion's deterministic programming engine.
6. Where SOREN Insights Live
Mass in Motion shows SOREN Insights in the following places in the app:
- SOREN Insights screen: The main home for your SOREN Insights. Open it from the SOREN Insights card on the Today screen or on the Progress tab. It has three tabs: Insights, where each SOREN Insight appears with the evidence and confidence behind it, along with early patterns still being learned; Progress, which shows your training response and progress trends; and Experiments, where you can choose to start an optional experiment. Each experiment requires its own opt-in, and you can pause or stop it at any time.
- Coach’s Notes: Contextual delivery of relevant SOREN Insights directly on the Today, workout, and recovery screens when you need them most.
7. SOREN Insight Accuracy, Evolution, and Retraction
SOREN Insights are data-dependent and evolve as you log more workouts, meals, and recovery data. If a historical relationship is no longer supported by recent evidence, it will be retracted or marked as expired. SOREN Insights reflect historical statistical observations, do not guarantee specific outcomes, and do not constitute medical advice or diagnosis.
8. Withdrawal and Data Management
Connected devices and platforms. Personalized Coaching analysis draws on data you enter directly, Mass in Motion-derived metrics, data recorded by the Mass in Motion watch app on a compatible Garmin watch, and running workouts synchronized from Apple Health. Other Apple Health workout types are not used for Personalized Coaching. Data you enter directly remains the primary record; data from a connected device is used as additional context and outcome measurement and may be less precise than a direct log. Mass in Motion works with Apple Health and compatible Garmin watches; this does not imply endorsement by, or affiliation with, Apple Inc. or Garmin Ltd.
You may manage or withdraw your consent to Personalized Coaching at any time in the app under Settings > Privacy & Data > Personalized Coaching.
Upon withdrawal:
- New Personalized Coaching processing is immediately paused;
- Active SOREN Insights are suppressed and removed from display;
- Individual calibration state, feature caches, and response model parameters associated with your account are deleted or cleared from active systems; and
- Your deterministic workout generation, logging, and core app features remain fully functional.
9. Contact Us
Mass in Motion LLC
Email: brandon@massinmotionapp.com
Website: massinmotionapp.com
Address: 6545 Market Ave. North Suite 100, Canton, Ohio 44721