Limber
The notebook

Field notes

105 field notes across 8 areas of mobility, all of them answering the question the category avoids: how would you know if any of this were working?

8 clusters · 105 field notes · every one of them listed on this page

01 Mobility, measured

Mobility is active range, flexibility is passive, and range of motion is the number. Stretching moves your tolerance first, so measure it or you cannot know.

13 field notes · read the cluster head

  1. Does stretching make you longer? Tolerance, not tissue 9 min
  2. Flexibility by age: what the population data actually shows 8 min
  3. How long to hold a stretch: 30 seconds, 60 past 65 7 min
  4. How long until flexibility improves? Three to six weeks 8 min
  5. How often should you stretch? Two or three days a week 7 min
  6. How to measure flexibility at home: five tests 10 min
  7. Mobility vs flexibility: what the two words actually measure 9 min
  8. One side more flexible than the other: how to read it 9 min
  9. Static vs dynamic stretching: what each is for 8 min
  10. What is PNF stretching, and does it beat a hold? 8 min
  11. What is a good flexibility score? 9 min
  12. What is range of motion, and how is it measured? 10 min
  13. Why am I so inflexible? The causes, ranked 9 min
02 Desk & posture

Desk stretches work as breaks from a held position, not as posture corrections. Sitting is a dose problem, and how often you leave the chair is what matters.

15 field notes · read the cluster head

  1. A 5 minute desk routine, timed honestly 8 min
  2. Desk setup and mobility: a small lever 7 min
  3. Desk stretches that earn their two minutes 9 min
  4. Forward head posture, read honestly 8 min
  5. Micro breaks: what the research actually shows 7 min
  6. Posture correction exercises, graded honestly 8 min
  7. Rounded shoulders: what actually changes 7 min
  8. Sitting all day, and what it does not do 8 min
  9. Standing desks: what they change, and what not 7 min
  10. Stretches at your desk, with no equipment 7 min
  11. Stretching at work without looking odd 8 min
  12. Tech neck: what the phrase actually covers 8 min
  13. The best stretches after sitting, and why 7 min
  14. Tight hip flexors from sitting: the evidence 9 min
  15. Working from home stretches, and a routine 8 min
03 Hips & legs

Hip mobility is limited by bone as often as by tissue, hamstrings need only 30 seconds, and the ankle quietly decides your squat. Test which one stops you.

15 field notes · read the cluster head

  1. Ankle dorsiflexion explained: what the reading means 10 min
  2. Ankle mobility drills: what the evidence supports 9 min
  3. Deep squat mobility: which joint runs out first 10 min
  4. Glute stretches: what you are really loading 8 min
  5. Hamstring stretches: the one settled dose 8 min
  6. Hip flexor stretches that load the right hip 9 min
  7. Hip internal rotation: the missing direction 9 min
  8. Hip mobility exercises for all six directions 9 min
  9. Knee to wall test: the protocol and the scale 9 min
  10. Piriformis stretches: careful with the name 8 min
  11. The 90/90 stretch: both hip rotations at once 9 min
  12. The couch stretch: setup, errors and limits 9 min
  13. Tight calves: four causes and one test 9 min
  14. Tight hamstrings: three tests that disagree 9 min
  15. Tight hips: four causes that feel the same 9 min
04 Shoulders & upper back

Shoulder mobility is a chain: the joint, the shoulder blade and the upper back. The upper back is usually the missing link, and the lower back hides it.

14 field notes · read the cluster head

  1. Apley scratch test: the protocol, the bands, the limit 9 min
  2. Chest opener stretches: pleasant, and limited 9 min
  3. Neck stretches: seven moves, honestly graded 9 min
  4. Overhead press mobility: what the bar needs 9 min
  5. Rotator cuff mobility: control, not length 9 min
  6. Scapular control: the evidence and the work 9 min
  7. Shoulder impingement and what mobility work does 9 min
  8. Shoulder mobility exercises, sorted by what they load 9 min
  9. Sleeping position and shoulder pain, graded 8 min
  10. Text neck stretches: the dose that matters 9 min
  11. The overhead mobility test is three different tests 8 min
  12. Thoracic spine mobility: the reading we do not have 9 min
  13. Upper back tightness: load, not length 9 min
  14. Wall angels: a measuring device before a drill 9 min
05 Lower back

Lower back stretches help modestly, and no more than other movement does. Most back pain has no identifiable cause, and red flags matter more than any routine.

12 field notes · read the cluster head

  1. A tight lower back: tight, weak, or neither 9 min
  2. Back pain from sitting: what the reviews say 8 min
  3. Child's pose: the setup and the limits 8 min
  4. Core strength for back pain, or stretching? 8 min
  5. Lower back stretches, and what they do 8 min
  6. McKenzie method vs general stretching 8 min
  7. Morning back stiffness: normal, and not 8 min
  8. Sciatica stretches: get examined first 8 min
  9. Stretches to avoid with back pain 8 min
  10. Stretching for lower back pain: the evidence 7 min
  11. The cat-cow stretch: guide and evidence 8 min
  12. When to see a physio about your back 9 min
06 Goals

How to touch your toes: the whole posterior chain, not just hamstrings. The squat is usually the ankle, the splits are bone-limited, and no date is honest.

12 field notes · read the cluster head

  1. Can adults become flexible? 8 min
  2. Deep squat progression: the real limits 8 min
  3. Front splits progression, without a date 9 min
  4. How long to touch your toes, honestly 8 min
  5. How to touch your toes 7 min
  6. How to track flexibility progress 8 min
  7. Middle splits progression, honestly 8 min
  8. Realistic flexibility goals and timelines 9 min
  9. Splits by age: what changes, what does not 8 min
  10. The flexibility plateau, diagnosed 8 min
  11. The overhead reach goal 8 min
  12. The pancake stretch, progressed 8 min
07 Mobility for training

Mobility for runners and lifters, honestly: stretching has not prevented injury in trials, strength training has, and stretching does little for soreness.

12 field notes · read the cluster head

  1. Cyclist hip flexors: the honest version 9 min
  2. Does stretching prevent injury? Mostly no 8 min
  3. HYROX mobility: reasoning, not evidence 9 min
  4. Mobility for lifters: position under load 9 min
  5. Mobility for runners: what running asks 9 min
  6. Post run stretches: what they are good for 8 min
  7. Rest day mobility: what the engine changes 9 min
  8. Shoulder mobility for climbers: the limits 9 min
  9. Squat depth mobility: the ankle, mostly 9 min
  10. Stretching before or after a workout: the order 8 min
  11. Stretching for DOMS: the answer is barely 9 min
  12. Warm up vs stretching: two different jobs 8 min
08 Comparisons

The best stretching apps: Pliability and StretchIt for taught video, Bend for a cheap habit, GOWOD for a free assessment. Prices checked July 2026.

12 field notes · read the cluster head

  1. Apps that measure flexibility: four checks 9 min
  2. Bend app review: 4.8 stars and a locked tier 8 min
  3. Bend vs Limber: 172,000 ratings against none 8 min
  4. Do you need a stretching app? Often not 8 min
  5. Free vs paid stretching apps: what you buy 8 min
  6. GOWOD review: the best free test, and after 8 min
  7. GOWOD vs Pliability: which one, and for whom 8 min
  8. Pliability review: the library and the bill 8 min
  9. StretchIt review: taught classes, one style 8 min
  10. The best mobility apps, and the word itself 8 min
  11. The best stretching apps, sorted by need 8 min
  12. The stretching app for desk workers, picked 8 min

The instruments are free and need no account.

The self-tests Limber runs are also on the web, on the same scale the app scores them with. Take a reading in a minute, in the browser, with nothing installed and nothing sent anywhere.

Open the instruments
What this writing is not

None of it is medical advice, and none of it treats anything. Where pain is involved, the honest answer is usually that the evidence is thinner than the internet suggests, and that a clinician who can examine you is worth more than an article. Both of those get said here rather than dodged.