A laboratory study compared the Carevo trolley with a traditional high-low shower trolley to determine whether there is a difference between the two in terms of static load on the musculoskeletal system of the caregiver (Knibbe et al 2013).
- A 10.2% improvement in the amount of time a caregiver spent in a neutral (or safe) back posture
- A 3% improvement in the amount of time that a caregiver spent in a non-flexed, non-twisted back posture
- A 9.4% improvement in the amount of time that a caregiver spent in a neutral (or safe) neck posture
- Caregivers also spent a significantly higher percentage of time working at the middle part of the trolley, with more time spent in a neutral back posture – a 13.4% reduction in static load
Compared with a previous study about postural load and efficiency in bathing and showering patients (Knibbe et. al. 1996) the results indicate an improvement in time spent in a safe posture when using the Carevo trolley with 19%, compared with washing the patient in a high-low bed.
Conclusions There are several possible explanations as to why better working postures are observed using the Carevo trolley:
- The middle curve of the trolley increases the area where nurses can work in acceptable postures
- The handles can improve log roll transfers, enabling the patient (if capable) to pull themselves, facilitating the roll. This stimulates patient cooperation as well as reducing musculoskeletal load for the nurse
- The head end of the Carevo trolley can be lifted – enabling hair washing or other activities in this area to be performed in a more ergonomic posture
- The soft part in the middle of the Carevo trolley mattress (the comfort zone) is positioned where the patient is heaviest, which prevents sliding down the trolley, and rotating is made easier