Strength.

The thing your future self needs.

Lean muscle is the single most reliable predictor of how well you'll move through midlife and old age. The world doesn't need another HIIT app. It needs strength people can keep doing on a Tuesday in November when nothing's exciting.

What it is.

Simple, unhurried strength work that fits the equipment you actually have. Bodyweight, a couple of dumbbells, a chair. No power racks, no beast mode, no ego.

Sessions follow a push / pull / lower-body / core split, with loads and reps the app holds steady from week to week so you can see your own progress without an analytics dashboard telling you about it.

"The reps you do today should be repeatable tomorrow." No AMRAPs, no failure sets, no max-effort programming. Strength as a habit, not a performance.

— Sthira Me strength principle

Why this practice.

We didn't include strength because the market expects a fitness app to have it. We included it because the evidence on resistance training in midlife and beyond is one of the clearest stories in physical health.

  • ~ 1%/yr

    Lean-muscle loss after 30 without resistance training. The decline is preventable, not inevitable.

    Sarcopenia consensus literature, age-related muscle loss.

  • ≥ 2 sessions

    Per week, of muscle-strengthening activity — the NHS adult strength recommendation. We hit it without shouting.

    NHS physical activity guidelines, adults.

  • 3 lifts

    Push, pull, lower-body. Optionally core. That's the whole programme. Variety lives at the exercise level, not the structure.

    Sthira Me Exercise Library, strength split.

Who it suits.

Strength is for the people whose future selves will thank them. Skips Kids and Teens by default — their bodies are still in the gentler-loading window and the practice opens later.

  • Midlife building

    Adults 30–55 holding muscle through a desk-shaped career. Twice a week is the dose.

  • Senior strength

    Bone density, balance, fall resistance. The most age-protective movement work there is.

  • Beginners

    Quiet on-ramp without performance anxiety. Bodyweight and a chair are enough to start.

  • Home setups

    A pair of dumbbells, a sturdy chair, a clear bit of floor. The whole programme runs there.

What evidence supports it.

Loading and progression follow chartered physiotherapy resistance-training guidelines. The reject list is short and explicit: no AMRAPs, no failure sets, no max-effort programming.

  • NHS strength recommendation

    Adults ≥ 2 sessions/week of muscle-strengthening activity. The Sthira Me default delivers this in two short weekly sessions plus one optional third.

    NHS physical activity guidelines.

  • British Heart Foundation Active

    Reps and loads sit inside the BHF Active strength guidance window for adult heart health, layered with chartered physio safety cues.

    British Heart Foundation Active programme guidelines.

  • Bone density & fall risk

    Resistance work two-three times weekly is one of the clearest interventions for bone-density preservation and fall-risk reduction in older adults.

    Cochrane reviews, resistance training in older adults.

  • Sthira Me Exercise Library

    Every exercise carries a body-region tag, a risk tier and an easier variant. Caution zones the user has registered filter the library before any session lands.

    Sthira Me Exercise Library, internal.

Strength, on a Tuesday.

Strength ships at launch as one of the four v1.0 pillars. Join the waitlist for founder pricing and early access.

Join the waitlist