Feasibility, usability, acceptability and Efficacy of a novel leg strengthening device (S-Press) for strengthening leg muscles and improving physical impairment during hospital admission

BackgroundDeconditioning due to in-patients stays is predictive of delayed discharges and readmissions; preserving muscle mass and strength in order for patients to remain independent should be of utmost priority. Progressive resistance training offers the most cost-effective way of doing this; however, it is not routinely done. ObjectiveTo examine the feasibility, usability and acceptability of a novel in-bed strength training device (S-Press) by patients and staff members within an in-patient rehabilitation ward in the NHS. MethodsUsing a mixed methods approach, 6 patients who performed resistance training on the S-Press device and, alongside 3 healthcare professionals, were interviewed. Data were thematically analysed to examine individuals perspectives and perceptions on the feasibility, useability and acceptability of the S-Press. In addition, measures of sit to stand and muscle ultrasound were conducted before use and before discharge. For indications of safety, heart rate and blood pressure measures were taken during each session. ResultsPatients found the S-Press easy and comfortable to use and enjoyed using it as an adjunct therapy during in-patient stay. Healthcare professionals using the S-Press noted that it improved mobility allowing patients to gradually build up muscle strength in a safe and motivating way. All participants improved sit to stand performance with use of the S-Press. There were no significant differences observed in heart rate or blood pressure during each session, indicating the safety of S-Press use. ConclusionFrom this proof-of-concept study, use of the S-Press to improve muscle strength and physiological function in in-patients is feasible and an acceptable intervention. Further work should focus on use with wider patient demographics and conditions.