Carer Comfort and Fatigue Reduction
An evidence-based look at how flooring choice affects carer wellbeing, sick days, and workforce retention in aged care, healthcare, and childcare settings — based on independent ergonomic testing and published research.
Why This Comparison Matters
Carers in aged care, healthcare, and childcare facilities spend most of their working day on their feet. Walking, transferring, dressing, lifting, cleaning — and standing — all on the same flooring, shift after shift. The cumulative load on knees, hips, and lower backs is significant, and it shows up in one of the most under-discussed problems in the sector: musculoskeletal sick days and early career burnout among carers.
Hard flooring is not a small contributor to this problem. It is a constant, eight-hours-a-day, every-shift contributor.
Most facilities default to hard vinyl over a concrete or timber subfloor because it is durable, easy to clean, and inexpensive to install. The hidden cost — paid for in absenteeism, workers' compensation premiums, and staff turnover — does not appear on the flooring invoice. It appears on the staffing line.
This page compares the carer-fatigue performance of three flooring approaches commonly found in care settings: standard rigid flooring (vinyl over concrete or plywood), conventional anti-fatigue mats, and Kradal Smart Foam underlay flooring. All data cited is from independent ergonomic testing or published peer-reviewed research.
Independent Ergonomic Testing
In February 2025, Jacaranda Flame Consulting completed an independent ergonomic study of Kradal Smart Foam flooring. Sixty-five participants stood on three different surfaces for thirty minutes each, with leg fatigue measured every ten minutes using the Visual Analogue Scale (VAS) — a clinically validated 0-to-10 pain intensity tool — alongside observation of seven physical discomfort indicators including weight shifting, posture adjustment, leaning, and wobbling.
The three surfaces tested were:
A rigid plywood floor, used as a proxy for the standard concrete-and-vinyl flooring found in most facilities.
The best-selling commercial anti-fatigue mat available in Australia.
Kradal Smart Foam underlay flooring.
Fatigue Accumulation Rate
The headline finding was the rate at which fatigue accumulated over time on each surface. Linear regression of VAS scores against elapsed time produced the following fatigue accumulation rates:
Rigid flooring: 0.149 VAS points per minute. The steepest, fastest fatigue accumulation of the three surfaces.
Conventional anti-fatigue mat: 0.117 VAS points per minute.
Kradal Smart Foam: 0.104 VAS points per minute. The shallowest, slowest fatigue accumulation of the three surfaces — slower than rigid flooring, and slower than the dedicated anti-fatigue mat.
Over a 30-minute stand, participants on rigid flooring reported a median VAS change of approximately 5 — moderate-to-severe discomfort. On Kradal Smart Foam, the median change was approximately 3, with lower variability than the conventional anti-fatigue mat. The pattern held across all five weight groups tested (50–102 kg), indicating that body weight is not a confounding factor — the surface itself drives the difference.
Extrapolated across an eight-hour shift, the cumulative fatigue load on rigid flooring is dramatically higher than on Kradal Smart Foam. This is the load that translates into back pain at the end of a shift, knee pain at the end of a week, and a sick day at the end of a month.
Why This Matters for Workforce Retention
Aged care, healthcare, and childcare all face persistent workforce shortages. Every avoidable absence pushes more pressure onto the carers who do show up — and ultimately onto the residents, patients, and children in their care.
A flooring system that measurably reduces standing fatigue translates directly into lower musculoskeletal sick days, lower workers' compensation exposure, better staff retention, and better care outcomes. Carers who finish a shift with less pain show up to the next one. Carers who stay healthy stay in the role.