Overview of Essentials: How to Assess & Improve All Aspects of Your Fitness
In this Huberman Lab Essentials episode, Andrew Huberman and Dr. Andy Galpin outline a practical framework for evaluating fitness across nine distinct adaptations—from movement skill and strength to VO2 max and long-duration endurance. The core message is that “fitness” is not one thing: different goals require different capacities, and the best training plan starts by identifying your weakest links without sacrificing what you already do well.
The 9 Major Fitness Adaptations
Dr. Galpin breaks physical fitness into nine buckets, each of which can be trained and assessed separately:
| # | Adaptation | What It Means | Example Assessment |
|---|---|---|---|
| 1 | Skill / Technique | How well you move or perform a specific movement pattern | Video of squat, push-up, pull-up, deadlift |
| 2 | Speed | Maximum velocity or acceleration | Sprint or bar velocity testing |
| 3 | Power | Speed × force | Broad jump |
| 4 | Strength | Maximum force produced once | Grip dynamometer, leg extension, squat variants |
| 5 | Hypertrophy | Muscle size / mass | DEXA, body comp, FFMI |
| 6 | Muscular Endurance | Repeated reps of a movement | Push-ups, planks, endurance set at 75% load |
| 7 | Anaerobic Capacity | All-out work for ~30–120 seconds | Wingate, sprint intervals, Bosco jumps |
| 8 | VO2 Max / Max Aerobic Capacity | High-intensity aerobic ceiling | Lab test, Cooper 12-minute run, Rockport walk |
| 9 | Long-Duration Endurance | Sustained submaximal work without breaks | 20–60+ minutes steady-state work |
How to Assess Each Fitness Quality
1) Movement Skill / Technique
Best assessed by a qualified movement specialist or physical therapist. If self-assessing, record:
- Push-up
- Pull-up or bent row
- Squat
- Deadlift
Record from:
- Front view
- Side view
Look for four things:
- Symmetry: left/right and front/back balance
- Stability: no shaking, twisting, or collapse
- Awareness: obvious technique errors you may simply not notice
- Range of motion: full, controlled movement through the joints
He suggests a simple scoring system:
- 0 = do not load it; high risk
- 1 = minor issue; proceed cautiously
- 2 = good enough to train normally
2) Power
A simple field test is the standing broad jump.
- Goal: jump at least your body height
- For women, reduce the rough benchmark slightly
- This is mainly a red-flag test, not an elite optimization metric
3) Strength
Dr. Galpin recommends multiple measures, including:
Grip Strength
Use a hand dynamometer or dead hang.
- Men: ~40 kg minimum, 60+ kg ideal
- Women: ~35 kg minimum
- Left-right difference should be under 10%
- Dead hang: 30 seconds minimum; 60+ seconds is strong
Lower-Body Strength
- Leg extension is a more standardized alternative to a back squat
- A useful benchmark is body weight
- After age 40, the target can drop about 10% per decade
Front Squat / Goblet Squat Hold
- Hold about half your body weight
- Stay in the bottom position for ~45 seconds
- This tests strength, position, and trunk stability
- Intro target: one-third body weight for 30 seconds
Important caveats:
- Don’t max out if your technique is poor
- Standardize your warm-up, or your results won’t be comparable
4) Hypertrophy
Hypertrophy is assessed with body composition testing such as:
- DEXA
- Bioelectrical impedance
- Other body comp scans
A key metric is FFMI (Fat-Free Mass Index):
- Men: around 20+ is a good floor
- Women: around 18+ is a good floor
- Men below 17 or women below 15 suggest severe insufficient muscle mass
These values assume reasonably lean body fat levels:
- Roughly under 30% for men
- Roughly under 35% for women
5) Muscular Endurance
Useful tests include:
- Front plank: 60 seconds
- Side plank: 45 seconds
- Push-ups:
- Men: 25+
- Women: 15+
Another option:
- Take a strength test, then perform the same movement at 75% of that load
- Good target: more than 8 reps
6) Anaerobic Capacity
This is harder to test outside a lab, but can be assessed with:
- Wingate test
- Sprint intervals
- Bosco protocol (repeated maximal vertical jumps)
Key practical metric:
- Push near maximum heart rate
- Then assess heart rate recovery
Recovery benchmarks:
- About 30 bpm recovered in the first minute
- About 60 bpm recovered by two minutes
- Faster recovery is generally better
He notes that the formula 220 - age is only a rough estimate of max heart rate.
7) VO2 Max / Max Aerobic Capacity
Gold standard:
- Laboratory VO2 max test
Field alternatives:
- 12-minute Cooper test: run as far as possible in 12 minutes
- Rockport one-mile walk test: useful if running is not appropriate
Rough minimums:
- Men: about 35 ml/kg/min
- Women: about 30 ml/kg/min
Higher-performance goals:
- Men: 50+, ideally 55+
- Women: 50+ is excellent
8) Long-Duration Endurance
This is steady-state work done for 20+ minutes without stopping.
- Can be walking, running, cycling, rowing, etc.
- Best if it fits your lifestyle and training goals
- Optional refinement: maintain nasal breathing only
The main question is simple:
- Can you sustain work without breaks or major drops in output?
Best Practices for Testing
Testing Frequency
- Do the full battery once per year
- Think of it as an annual fitness checkup, similar to annual bloodwork
Testing Order
To minimize fatigue effects:
- Body composition / FFMI
- Movement skill
- Power
- Strength
- Muscular endurance
- Anaerobic capacity
- VO2 max
- Long-duration endurance
Timing Tips
- Do body composition after 48 hours without hard exercise
- Do movement and skill tests when fresh
- Put max strength and power early in the day
- Save fatiguing endurance tests for later or a separate day
Main Takeaways
- Fitness is multidimensional; no single test captures it all.
- Identify your weakest adaptation so it doesn’t become a “performance anchor.”
- Train for your goals, but make sure you’re not neglecting the health-related basics.
- Use a simple annual testing framework to guide training priorities for the next quarter or half-year.
- The goal is not to be perfect in every category, but to be sufficiently strong across all of them so you can keep training, progressing, and staying healthy over time.
