The Research Finally Asked Why Women Don't Lift — Here's What It Found
There's a gap in strength training participation that the fitness industry tends to either ignore or address with marketing. Women are significantly less likely than men to meet strength training guidelines, and that gap doesn't narrow with better gym aesthetics or more welcoming branding. It persists across countries, age groups, and income levels.
A 2024 integrative review published in the Health Promotion Journal of Australia (Stimson et al.) set out to understand why — specifically for women aged 35–54, the cohort where participation drops most sharply and where the downstream consequences are most significant. The review identified five consistent factors across the available evidence. They're worth understanding in detail, because they complicate the usual explanations.
The Numbers Are Worse Than You Probably Think
Before getting into the why, the what: approximately 21% of Australian women aged 35–54 do two or more strength training sessions per week — the minimum recommended by public health guidelines. By ages 65–74, that drops to 16%. By age 85 and over, it's 8%.
In England, the picture is sharper still. Only 4.1% of women meet the criteria for true muscle-strengthening exercise as defined by guidelines, compared to 7.3% of men. Data from the US and Scotland sit in a similar range — roughly 24–27% of women meeting recommendations depending on how the question is asked, and considerably lower when definitions are tightened.
These aren't fringe figures. They represent a genuine public health gap with compounding effects over time.
The stakes for this specific age range are concrete. In Australia, falls are the leading cause of hospitalisation from age 45 onward. From age 65, falls account for 364 hospital admissions per day. Women make up two out of three of those admissions in the 65-and-older cohort, and bone density loss is identified as a primary contributing factor. The window between 35 and 54 is where foundational strength for later decades either gets built or doesn't.
Five Factors — And They're Not What Gets Talked About Most
The review screened 1,895 studies against strict inclusion criteria (peer-reviewed, focused specifically on women in the 35–54 age range, measuring strength exercise participation as a primary outcome, reporting sex-disaggregated data). Five studies met the bar. Across those five, five themes emerged consistently.
Perceived time constraints. This one appears in nearly every conversation about exercise barriers, but the research makes an important distinction: the time constraints women in this cohort report are perceived barriers, not necessarily actual ones. That's not a dismissal — perceived barriers are real barriers. But it shifts the intervention target. The problem isn't purely logistical. Program design that reflects individual scheduling preferences and reduces the cognitive overhead of participation matters more than simply offering shorter sessions.
Knowledge and education. Four of the five studies identified knowledge gaps as significant. Specifically: lack of information about the benefits of strength training, unfamiliarity with equipment, and uncertainty about what constitutes an effective program (sets, reps, progression). This isn't surprising given that women remain underrepresented not just as participants in strength training research, but as authors of the consensus statements that shape the guidelines — approximately 13% of all authors, according to a 2023 audit cited in the review. The information environment has been shaped largely without this population at the table.
What the research found is that knowledge doesn't just reduce barriers — it builds confidence directly. Understanding what a given exercise does, why, and how to execute it correctly translated into greater willingness to participate, regardless of current fitness level.
Modality and intensity. Women's expectations about what strength training looks and feels like influence whether they start and whether they continue. Mismatches between expectation and experience — programs that feel too intense, too unfamiliar, or poorly suited to daily life — were barriers in all five studies. Conversely, programs tailored to individual preferences, with clear feedback and progression, showed better adherence. This is consistent with what practitioners see: there's no universally correct modality. The best program is one the person can and will do.
Social support. Group training and encouragement from fitness professionals both showed positive effects on motivation and participation. Notably, the absence of social support — feeling poorly accepted in a training environment — emerged as a specific barrier, particularly for pregnant exercisers. The social dimension of a training environment isn't peripheral to the experience; it's part of it. A technically sound program delivered in a hostile or unwelcoming environment produces predictable outcomes.
Behavioural strategies. Women who met strength training guidelines were more likely to use concrete behavioural strategies: enrolling in structured programs, accessing facilities, setting short-term goals. Two of the five studies included a fitness professional in the experimental design, and both showed improved adherence and outcomes in those groups — though the review appropriately notes this makes it difficult to isolate the effect of the strategies themselves from the effect of professional guidance. The connection between professional support and adherence is consistent, even if the mechanism isn't fully disentangled.
The Contextual Layer the Data Don't Fully Capture
The review includes a discussion worth quoting in spirit, even if not directly: women aged 35–54 often carry caregiving responsibilities in both directions — dependent children and aging parents — alongside professional demands and the physiological transitions of perimenopause. The competing cognitive and logistical load is real, and it interacts with all five of the factors above.
This context doesn't render the barriers insurmountable. But it does mean generic programming approaches developed without attention to this cohort's circumstances are unlikely to land. The review calls for what it terms "scaffolding" — guidance-led rather than instruction-led programming that progressively builds competence, confidence, and autonomy over time. The goal is a training relationship that accommodates flux rather than demanding consistency that isn't realistic.
Limitations Worth Naming
Five studies from 1,895 is a small yield. The review is transparent about this: the inclusion criteria were strict by design, and many potentially informative studies were excluded because they didn't disaggregate results by sex or didn't focus specifically on the 35–54 age range. The actual study age ranges across the five included papers extended as low as 20 and as high as 54, which creates some noise around the target cohort. Three studies were conducted with Latino women in the US, one in Norway, and one in Sweden — so generalizability across different cultural and geographic contexts requires caution.
The field is thin. The review's central contribution is making that thinness visible, naming what's known, and pointing toward what needs to be studied next.
What This Means for Programming
For practitioners working with women in this age range, the practical implications are fairly direct:
Do an honest audit of knowledge delivery. The research doesn't support assuming clients know what strength training is, why it matters, or how to do it effectively. Baseline education about exercise mechanics, guidelines, and progression isn't remedial — it's foundational, and it demonstrably affects both confidence and participation.
Take scheduling seriously at intake, not as an afterthought. If the perception of time constraint is a barrier even when time exists, program design needs to address that perception. Flexibility in scheduling, exercise selection, and session length reduces the cognitive overhead of maintaining a practice.
Build the social environment intentionally. The training environment is part of the product. Feeling unwelcome or out of place is a documented reason women disengage from strength training. This isn't about atmosphere in an abstract sense — it's about specific practices around feedback, cue-giving, and who is made to feel competent.
Consider virtual or home-based formats as a genuine option. One study in the review's discussion section — a pilot on supervised virtual home-based low-load resistance training in middle-aged adults — showed positive effects on fitness and mental health. Given the time constraint data, home-based formats reduce one of the primary friction points. They're not a substitute for in-person coaching, but dismissing them as inferior by default isn't supported by the evidence.
Don't conflate aerobic exercise participation with strength training readiness. Women in this cohort are more likely to engage in aerobic exercise than resistance training. The knowledge and confidence to do one doesn't transfer automatically to the other. They require different education and different programming scaffolds.
The review closes with a point that should sit with anyone working in this space: initiatives aimed at increasing strength training participation in women must maintain flexibility in their approach. What the research describes is not a homogeneous group with uniform barriers, but a cohort navigating a specific, demanding life stage with variable circumstances and real competing demands. The science on this is underdeveloped. The practical gap is large. The opportunity for evidence-informed programming is significant.
Source: Stimson AM, Anderson C, Holt A-M, Henderson AJ. Why don't women engage in muscle strength exercise? An integrative review. Health Promot J Austral. 2024;35(4):911–923. https://doi.org/10.1002/hpja.857
