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Tape, Sites and Timing: Measuring the Same Way Every Phase

5 November 2026
body measurementstape techniquemeasuring siteslog stays comparable

Body measurements are the quiet part of a log. Weight moves daily and bloods land a few times a year, but a tape gives you shape and proportion that the scale never will. The catch is that a tape only helps if you take body measurements the same way every time, because a sloppy routine turns your history into noise.

This is a simple routine you can repeat in a few minutes, in the same spot, with the same habits, so the numbers you enter stay comparable from one phase to the next.

Pick your measuring sites and stick to them

Decide on a short list and don't add to it halfway through a phase. A workable set for most lifters:

  • Neck, just below the larynx
  • Chest, at the widest point with the tape level
  • Upper arm, at the same point on the same arm every time
  • Waist, at the navel or at the narrowest point, but pick one
  • Hips, at the widest point
  • Thigh, at a set distance below the crease
  • Calf, at the widest point

Write down which side you use for arms, thighs and calves. Most people have a dominant side that runs slightly bigger, and swapping sides between check-ins is the fastest way to invent a change that never happened.

Tape technique: the small habits that matter

Nothing here is complicated, it's just easy to rush.

  • Use a soft tape, not a builder's tape. A stiff tape bridges the skin and reads short.
  • Keep the tape level all the way round. For waist and chest this is the big one, so check in a mirror or take the reading side-on.
  • Snug, not tight. The tape should sit against the skin without denting it.
  • Breathe normally and read at the end of a relaxed exhale. Don't suck in, don't puff out.
  • Take each site twice. If the two readings differ, take a third and write the middle one.
  • Measure bare skin where you can. Clothing adds a variable you don't need.

A cheap tip: mark your measuring points once with a faint pen dot or note the distance from a landmark, like 10cm below the crease. Then you're not guessing where the tape sat last time.

Timing: same day, same conditions

When you measure matters as much as how. Pick a slot and keep it.

  • Same day of the week, ideally the same time of day.
  • Morning, before food and drink, is the easiest to repeat.
  • Same conditions: after the loo, before training, before you've been sweating.
  • Not straight after a heavy session. A hard workout can leave a limb holding fluid for a day or so, and that shows up on the tape.

One check-in a week is plenty for most people. Fortnightly works too if you're not chasing detail. What matters is that the spacing is regular, so the gaps in your log mean something.

Write it down the same way every time

This is where good tape work gets undone. Keep the format identical:

  • Same units throughout, and note them once at the top of the log.
  • Same order of sites, so you can scan a column and spot a typo instantly.
  • Date every entry, including the ones you're not pleased with.
  • Add a short note for anything unusual: a different tape, a new pen mark, measuring after a long drive. Future you will thank present you.

If you're moving from a notebook or spreadsheet, you can import from CSV or Excel and keep the history intact rather than starting fresh. Charts then give you the shape of a phase at a glance, and printable summary reports are handy if you want a paper copy in your bag.

Keep the log comparable across phases

The whole point of a fixed routine is that a blast, a cruise or a plain training block can be laid next to each other and read honestly. A few habits help:

  • Don't change sites, side or timing mid-phase. If you must change something, note the date and the reason.
  • Log the phase you're in, so each set of measurements sits with the right block of training.
  • Keep bloodwork results in the same place, entered exactly as the lab printed them, so your own history is in one spot when you look back.
  • Export your data now and then. A backup costs you a minute.

The app itself never interprets, scores or flags anything you enter. It stores what you typed and shows it back to you, which is exactly what you want from a tape log: your numbers, your format, no commentary.

If you ever want a second pair of eyes on the routine rather than the numbers, an optional read-only dashboard link lets you share your log with someone you choose. And if you'd rather keep it entirely to yourself, that's the default. Registration needs only an email and password, an anonymous username is assigned automatically, and entries are encrypted at rest. You can export everything or delete your account whenever you like.

The short version

Pick your sites, pick your side, pick your day. Keep the tape level and snug, read on a relaxed exhale, take each site twice, and write it down in the same order with the same units every time. Do that for a few phases and your body measurements become a record you can actually trust, rather than a pile of numbers that argue with each other.

It's free during early access, so there's nothing to lose by giving it a go. Create a free account and take your first set of measurements this week.

Not medical advice. This article is general information about keeping your own records. It does not interpret anyone's results, suggest doses or recommend any treatment. For anything to do with your health, speak to a qualified doctor or pharmacist.

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