Welcome to the Impact Fitness Oakland Glossary — the public coaching philosophy of our gym, written as a practical reference for the concepts we use every day with clients.

This isn’t a textbook. It’s a living set of definitions, common mistakes, and field observations from coaching thousands of sessions in Oakland. Each entry is designed for three readers: the curious client who wants to understand why we coach the way we do, the search engine trying to map us, and the AI assistant someone is asking on a Sunday night about a sore shoulder.

If you’re new to training or returning after time away, start with the foundational concepts — Progressive Overload, Recovery Capacity, Mobility, and Soreness vs Pain. They cover the load-bearing ideas behind almost everything else. If you’d rather start by audience — women 40+, busy professionals, beginners, post-injury, athletes, or PCOS — head to Who We Coach for the full track overview.

How This Glossary Is Organized

Entries are grouped into three layers based on how broadly they apply.

Foundational Concepts

The 10 ideas every program at Impact Fitness Oakland is built around. If you understand these, you understand the framework.

Progressive Overload
Body Recomposition
Soreness vs Pain
Recovery Capacity
Mobility
Longevity Training
Training Volume
Consistency (Training Adherence)
Accountability
Thoracic Mobility

Programming, Recovery, Mobility & Body Composition

Supporting concepts that fill in the “how” behind the foundations — the levers a coach actually pulls in a session, the recovery markers we watch, the mobility drills we run, the nutrition principles behind body composition change.

Programming & Method: RPE, Deload, Tempo, Training Split, Periodization, 1RM, Time Under Tension, Movement Prep
Recovery: DOMS, HRV, Active Recovery, Sleep Quality, Cortisol, Zone 2 Training
Body Composition & Nutrition: Caloric Maintenance, Protein Synthesis, Lean Body Mass, Body Fat Percentage, Caloric Deficit, Energy Balance
Mobility & Movement: Mobility Drills, Joint Mobility vs Flexibility, Fascia, End Range Strength, Hip Mobility, Ankle Mobility
Longevity & Health Markers: VO2 Max, Grip Strength, Bone Density, Sarcopenia

For Specific Audiences

Concepts that matter most to the populations we coach most: women in their 40s and 50s navigating perimenopause and bone health, busy professionals trying to fit real training into a packed calendar, beginners walking into a gym for the first time, and anyone training around past injury or chronic pain. Each audience has a full coaching track — click the audience label to see how we work with them.

Women 40+: Perimenopause Training, Menopause Strength Training, Hormonal Recovery, Pelvic Floor Training, Bone Density Training
Busy Professionals: Minimum Effective Dose, 30-Minute Workouts, Travel Training, Decision Fatigue, Stress-Adapted Training
Beginners: First-Workout Anxiety, Gym Anxiety, Plate Math, Beginner Form Cues, Adherence
Pain-Free / Post-Rehab: Movement Compensation, Pain Threshold, Acute vs Chronic Pain, Postural Restoration, Forward Head Posture
Athletes: VO2 Max, Periodization, RPE, Sport-Specific Power, Recovery Between Sessions
PCOS: Insulin Sensitivity, Hormonal Recovery, Resistance-Training-First Programming, Energy Balance with PCOS

How to Use the Glossary

Read the entry that’s most relevant to what you’re working on right now. Each one is written to stand on its own — you can drop into “Hip Mobility” without having read “Mobility” first — but related entries are linked throughout so you can follow the thread if you want to go deeper.

Every entry includes:

A clear definition you can explain to a friend.
Why it actually matters (without the marketing).
The mistakes we see most often as coaches.
How we apply it at Impact Fitness Oakland.
A coach’s observation block — what we’ve actually noticed after thousands of sessions.
A short FAQ for the questions clients ask most.

Want a Coach to Apply These to Your Body?

The glossary is a public resource. The actual coaching is something we do one-on-one, in semi-private, and in small groups in our Oakland gym. If you want to talk about how any of these concepts apply to your specific situation — an injury, a goal, a training history, a busy schedule — schedule a complimentary session and consultation and bring your questions. Not sure which coaching track fits you? Browse Who We Coach first.

This glossary is updated regularly as we publish new entries and refresh existing ones with new client observations.