Two very different ways to rebuild a postpartum core
One is a premium, coaching-led Pilates course. The other is a set of one-time guides you buy once and keep. Here is how they genuinely differ.
Quick answer
Core Rehab, created by Pilates instructor and postnatal fitness educator Erica Ziel, is a premium, coaching-heavy online course built around breathwork, deep core connection and Pilates-inspired movement. Mumma Glow sits at the affordable end of the same shelf: individual digital guides from $15, or the full bundle at $50, paid once, with no subscription and no enrolment window. If you want video-led classes plus coaching and community, and the price sits comfortably in your budget, Core Rehab is a well-regarded option. If you want a structured plan you can open tonight and follow while the baby naps, without a recurring charge, Mumma Glow was designed for that.
What Core Rehab is, and what it does well
Erica Ziel came into postnatal fitness through Pilates and movement coaching, and Core Rehab reflects that background. The programme is built on the idea that the abdominal wall is not fixed by counting repetitions, but by changing how you breathe, how you manage pressure, and how your ribs, spine and pelvis stack while you move. That philosophy sits well alongside what women's health physiotherapists teach, and it is a large part of why the programme has held a following for years rather than a single viral season.
Its strengths are worth naming plainly:
- Depth of instruction. The cueing is detailed. If you want to understand why a movement works rather than just copy it, that suits you.
- Follow-along video. Filmed classes remove the decision-making. You press play and move.
- Coaching and community access. Higher tiers typically include some form of guided support, which matters if accountability is your sticking point.
- Whole-body framing. It treats the deep core as part of a system that includes the diaphragm, pelvic floor and hips, rather than one muscle to squeeze.
The honest trade-offs: it is a premium purchase, enrolment is not always open, and the sheer volume of content can feel like a second job in the first months with a newborn. Pricing and enrolment terms change, so check the current details on Erica Ziel's own site rather than trusting any figure quoted in a review, including this one.
What Mumma Glow is
Mumma Glow publishes digital postpartum recovery guides you download and keep. Core Reconnect is the deep core and diastasis recti guide; other titles cover pelvic floor, C-section recovery, glutes and new-mum energy. There is no app to log into, no monthly billing and no enrolment period to wait for. You buy the guide, it is yours, and you work through it at whatever pace real life allows.
What Mumma Glow deliberately does not offer: live coaching, a private community, or a filmed class library. If those are the features that would actually get you moving, that is a real reason to spend more elsewhere. We would rather say so than pretend the two products are the same thing at different prices.
Side by side
| Core Rehab (Erica Ziel) | Mumma Glow | |
|---|---|---|
| Format | Video-led online course | Downloadable written guides with illustrated movements |
| Payment model | Premium one-time course fee, tiers vary; check current pricing | One-time, from $15 per guide |
| Ongoing charges | None on the core purchase, though further courses and memberships are offered | None at all |
| Coaching or community | Available on higher tiers | Not included |
| Availability | Enrolment can open and close | Always available, instant download |
| Session length | Varies; many classes run roughly 20 to 40 minutes | Short daily blocks designed around naps |
| Best suited to | Mums who want depth, video guidance and support, with budget to match | Mums who want an affordable, self-paced start they own outright |
of women still had diastasis recti at six weeks postpartum (Sperstad et al., British Journal of Sports Medicine, 2016)
still had it at twelve months postpartum in the same cohort, which is why a plan you will finish matters more than a perfect plan
one-time price of a single Mumma Glow guide, with the full bundle at $50
The four questions that actually decide this
1. Does video guidance change whether you do it?
Some mums need a voice telling them when to exhale. Others find that pressing play, waiting through an intro and propping a phone at floor level is exactly the friction that stops them. Be honest about which one you are. If you have abandoned written plans before, pay for video. If you have abandoned video subscriptions before, do not buy another one.
2. Is your sticking point knowledge or consistency?
If you do not yet know what a deep core contraction feels like, a heavily coached programme earns its price. If you already know the movements and simply have not strung together three weeks in a row, the fix is a shorter daily commitment, not more content. We looked at that trade-off in our guide to choosing a postpartum programme you will actually finish.
3. How much time do you truly have this month?
A newborn month and a nine-month-old month are different countries. A library of 30-minute classes bought at six weeks postpartum can sit untouched until your baby walks. Ten minutes you repeat beats forty minutes you skip.
4. What is the real budget, including what comes after?
Compare total cost, not headline cost. A one-time course you never revisit and a subscription you forget to cancel can end up costing the same. Our breakdown of what it actually costs to address diastasis recti puts programmes, physio sessions and equipment side by side.
What both programmes agree on
Look past the branding and the underlying principles overlap more than the marketing suggests. Both start with breath rather than crunches. Both treat the pelvic floor and abdominal wall as one pressure system, a relationship we unpack in our article on the pelvic floor and diastasis recti connection. Both avoid loaded flexion early on, because pressure pushing outward through the midline is the thing to manage first, and both teach you to watch for coning and doming as your feedback signal. If your belly looks and feels different depending on the hour, that is normal and worth understanding too, which is why we wrote a companion piece on why diastasis recti often looks worse at the end of the day.
Neither programme, and no programme, can promise a specific gap measurement or a flat stomach. Results vary from mum to mum depending on birth, genetics, tissue quality, sleep and how much of the plan gets done. The NHS and the American College of Obstetricians and Gynecologists both frame postnatal exercise as a gradual, symptom-guided return rather than a race to a number.
The honest verdict
Core Rehab is the better fit if you want filmed classes, detailed coaching and a community, and the premium price is genuinely comfortable. Mumma Glow is the better fit if you want a structured, evidence-informed plan that costs less than a takeaway, works offline in short blocks and never bills you again. Plenty of mums start with the affordable guide, learn whether they will stick with home training at all, and only then decide whether a premium course is worth it. That order costs you less if the answer turns out to be no.
Start where the cost of trying is low
Core Reconnect is our deep core and diastasis recti guide: short, nap-length sessions, illustrated progressions, and no subscription attached. Take a look at Core Reconnect, or use code GLOW20 for 20% off your first order.
Frequently asked questions
Is Core Rehab worth the money?
If you value video instruction and coaching support and the price fits your budget without strain, many mums find it worthwhile. If you would be stretching to afford it, start with a lower-cost structured plan and find out whether home training suits you before committing.
Can I do both?
Yes, though there is little reason to run two plans at once. Pick one, follow it for six to eight weeks, then reassess. Layering programmes usually means doing neither properly.
Does Mumma Glow include videos?
No. Mumma Glow guides are written and illustrated, which is part of why they cost from $15 rather than several hundred. If video is essential for you, choose a video-based programme.
Do I need a programme at all, or should I see a physio?
If you have pain, leaking, heaviness or a hernia you suspect, see a women's health physiotherapist or your GP first. A programme complements that assessment; it does not replace it.
How long before I notice anything?
Most mums notice control and comfort changing before appearance does, often within a few weeks of consistent practice. Tissue change is slower and varies from mum to mum. Sperstad and colleagues found prevalence falling steadily from six weeks to twelve months postpartum, which gives a sense of the timescale.
Sources: Sperstad JB et al., "Diastasis recti abdominis during pregnancy and 12 months after childbirth", British Journal of Sports Medicine, 2016. NHS guidance on exercise after childbirth. American College of Obstetricians and Gynecologists, physical activity and exercise during pregnancy and the postpartum period.
This article is general education, not medical advice. Mumma Glow is not affiliated with Erica Ziel or Core Rehab, and programme details and pricing change over time, so verify current terms on the provider's own website. Results vary from mum to mum. If you have pain, leaking, heaviness, a suspected hernia or any new symptom, please speak to your GP, midwife or a women's health physiotherapist.