Surgery
Conditions
Keywords
Prehabilitation, Exercise, Major surgery, Digital health
Brief summary
Prehabilitation describes the process of improving someone's functional capacity before major surgery. Prehabilitation commonly focuses on exercise training, as fitness level is a predictor of surgical outcomes - the fitter you are before surgery, the lower the risk of complications after surgery. Typically, exercise training is done at the hospital, but research shows that patients would prefer to do prehabilitation exercises in their home. The goal of this study is to test the feasibility of an online prehabilitation programme made by PreActiv, which can be accessed at home via a website by patients who are awaiting major surgery. PreActiv's prehabilitation programme is six weeks long, and involves three 35-minute exercise sessions per week, with each session including a warm-up, cardio exercises, muscle strengthening exercises, and breathing exercises. Information from this pilot study on the number of exercise sessions attended (adherence) and the number of patients who complete the study (retention) will be used to decide whether we should progress to a larger study that assesses the effectiveness of PreActiv's prehabilitation.
Detailed description
This is a single-arm pilot study to assess the feasibility of PreActiv's digital prehabilitation alongside usual care at the Royal United Hospitals Bath NHS Foundation Trust. The novel provision of tailored, progressive, dynamic, evidence-based, and home-based prehabilitation via PreActiv's digital platform requires evaluation for feasibility, prior to a larger, randomised-controlled trial assessing efficacy. Such research is warranted, as patients indicate a preference to complete prehabilitation at home, rather than at the hospital, but current home-based prehabilitation programmes are one-size-fits-all, and do not adapt to changes in fitness level. Patients awaiting major surgery and aged 50 years or older will be identified by preoperative nurses and screened by a member of the research team at the Royal United Hospitals Bath NHS Foundation Trust. Eligible patients who provide written informed consent will then be invited to attend a measurement visit at the University of Bath for baseline assessments of fitness, blood pressure, physical activity level, and wellbeing in week 0. All participants will then enrol onto PreActiv's website, and a six-week, thrice weekly prehabilitation programme will be created for them based on their mobility and fitness level. Measurements at the University of Bath will be repeated in week 7 to assess the preliminary efficacy of PreActiv's digital prehabilitation. Feasibility outcomes will be used to inform the design of a potential future randomised-controlled trial measuring change to cardiorespiratory fitness as the primary outcome. The decision to progress to a randomised-controlled trial will be based on pre-defined progression criteria for adherence and retention in this pilot study. In addition, participant feedback will be used to refine the study design and intervention.
Interventions
All participants will be allocated to receive six weeks of digital prehabilitation via PreActiv's website, plus usual care.
Sponsors
Study design
Eligibility
Inclusion criteria
* Planned for major elective surgery ≥10 weeks from time of recruitment Major or complex surgery examples in NICE guideline NG45 'Routine preoperative tests for elective surgery' provides appropriate examples that are relevant to the patient cohort at the Royal United Hospitals Bath NHS Foundation Trust (RUH). We have extrapolated from these examples a list of surgical procedures that qualify as major or complex surgery and are carried out at the RUH. This list is not exhaustive but provides a range of procedures that are applicable for example: laparotomy, joint replacement, total abdominal hysterectomy, nephrectomy, neck dissection, parotidectomy, endoscopic resection of prostate, thyroidectomy. * Aged ≥50 years
Exclusion criteria
* Surgery scheduled in \<10 weeks * Any relative or absolute contraindications to undertake an exercise test as described by the American College of Sports Medicine (ACSM, 2022) and the American Heart Association (Fletcher et al., 2013) * Unsuitable to increase physical activity level as determined by Physical Activity Readiness Questionnaire (PAR-Q) * Uncontrolled or poorly-controlled lung condition, diabetes, or seizures * Recent (\<12 months) cardiovascular events needing hospital admission * Ongoing infection or wound making this programme hazardous for the patient * Unable to access technology required to use the PreActiv digital platform * Currently meeting World Health Organisation (WHO) physical activity guidelines of 75- 300 minutes of moderate to vigorous intensity physical activity per week, plus twice-weekly muscle strengthening activities * Unable to understand explanations and/or provide informed consent * Unable to understand written or spoken English, and without ongoing access to an interpreter * Any condition and/or behaviour that would pose undue personal risk or introduce bias into the study * Currently enrolled in another research trial
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Number of Participants Retained | 6 weeks | The number of patients that enrol into the study who complete follow-up measurements, with percentage calculated |
| Number of Participants Recruited | 4 months | The number of patients invited that provide written informed consent, with percentage calculated |
| Number of Participants Interested in Participating | 4 months | The number of patients invited that are willing to be screened for eligibility, with percentage calculated |
| Number of Participants That Passed Screening | 4 months | The number of willing patients that pass screening for eligibility, with percentage calculated |
| Number of Adherent Participants | 6 weeks | The number of participants who complete all exercise sessions, with percentage calculated |
| Percentage of Compliant Exercise Sessions | 6 weeks | The percentage of exercise sessions that are completed as prescribed in terms of intensity, duration, and type of exercise |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Quality of Life EQ-5D Visual Analogue Scale | Change from pre-intervention (week 0) to post-intervention (week 7) | Assessed via EuroQol EQ-5D visual analogue scale, with a highest possible score of 100 and a lowest possible score of 0. A higher score is favourable as it indicates better quality of life. |
| 1-minute Sit-to-stand Test | Change from pre-intervention (week 0) to post-intervention (week 7). | Assessed via the number of repetitions completed during a 1-minute sit-to-stand test. |
| Cardiorespiratory Fitness | Change from pre-intervention (week 0) to post-intervention (week 7) | Assessed via a maximal cardiopulmonary exercise test performed on a cycle ergometer, with measurements of VO2peak (ml/kg/min) and ventilatory threshold (ml/kg/min) derived. |
| Resting Blood Pressure | Change from pre-intervention (week 0) to post-intervention (week 7) | Three measurements were made after 15 minutes seated rest using an automated sphygmomanometer, with the average (mean) of the three measurements reported (mmHg) |
| Resting Heart Rate | Change from pre-intervention (week 0) to post-intervention (week 7) | Three measurements were made after 15 minutes seated rest using an automated sphygmomanometer, with the average (mean) of the three measurements reported (bpm) |
| Physical Activity Level | Change from pre-intervention (week 0) to post-intervention (week 7) | Assessed via International Physical Activity Questionnaire (IPAQ) short-form. After data processing, the highest possible score is 25,704 MET-minutes/week and the lowest possible score is 0 MET-minutes/week. A higher score is favourable as it indicates a higher physical activity level. |
| Anxiety and Depression | Change from pre-intervention (week 0) to post-intervention (week 7) | Assessed via Hospital Anxiety and Depression Scale (HADS). The highest possible score is 21 and the lowest possible score is 0 for both the anxiety and depression sub-scores. A lower score is favourable as it indicates lower anxiety/depression. |
Other
| Measure | Time frame | Description |
|---|---|---|
| Carbon Emissions Avoided With Home-based vs. Face-to-face Prehabilitation | 6 weeks | An estimation of the carbon emissions avoided by performing prehabilitation at home via PreActiv's digital prehabilitation compared to the estimated hypothetical emissions associated with participants travelling to the hospital three times per week for six weeks for face-to-face prehabilitation. Publicly-available carbon emissions data will be used for calculations. |
Countries
United Kingdom
Participant flow
Recruitment details
Recruitment was completed between 19th February 2024 and 19th June 2024. Recruitment took place within the preoperative assessment clinic at the Royal United Hospitals Bath NHS Foundation Trust.
Participants by arm
| Arm | Count |
|---|---|
| Six Weeks of Digital Prehabilitation The digital prehabilitation programme comprises three 35-minute exercise sessions per week, including a warm-up, vigorous intensity aerobic and resistance exercises, and breathing exercises. The digital prehabilitation programme will be tailored to the participant's mobility level and fitness level, which will be assessed via in-platform questionnaires and functional assessments. Functional assessments will be repeated every two weeks to adapt the prehabilitation programme according to changes in fitness level. Within PreActiv's website, participants will be enrolled into a managed community forum of patients and healthcare professionals where they can post their achievements and questions. Alongside access to PreActiv's digital prehabilitation, patients will be given educational materials that summarise the benefits of prehabilitation and how to realise them. | 24 |
| Total | 24 |
Withdrawals & dropouts
| Period | Reason | FG000 |
|---|---|---|
| Baseline measurements | Expedited surgery | 1 |
| Baseline measurements | Lost to Follow-up | 2 |
| Baseline measurements | Withdrawal by Subject | 1 |
| Intervention period | Adverse Event | 1 |
| Intervention period | Expedited surgery | 1 |
| Intervention period | Lost to Follow-up | 2 |
| Intervention period | Withdrawal by Subject | 3 |
Baseline characteristics
| Characteristic | Six Weeks of Digital Prehabilitation |
|---|---|
| Age, Continuous | 69 Years |
| Body mass index | 29.1 kg/m2 |
| Race/Ethnicity, Customized White British | 24 Participants |
| Sex: Female, Male Female | 14 Participants |
| Sex: Female, Male Male | 10 Participants |
| Surgery type Cholecystectomy | 1 Participants |
| Surgery type Hernia repair | 3 Participants |
| Surgery type Hip replacement | 3 Participants |
| Surgery type Hip revision | 1 Participants |
| Surgery type Hysterectomy | 2 Participants |
| Surgery type Knee replacement | 3 Participants |
| Surgery type Knee revision | 1 Participants |
| Surgery type Ovarian cystectomy | 1 Participants |
| Surgery type Parathyroidectomy | 3 Participants |
| Surgery type Prostatectomy | 1 Participants |
| Surgery type Thyroidectomy | 2 Participants |
| Surgery type Ureteral reimplantation | 1 Participants |
| Surgery type Vaginal prolapse repair | 2 Participants |
Adverse events
| Event type | EG000 affected / at risk |
|---|---|
| deaths Total, all-cause mortality | 0 / 35 |
| other Total, other adverse events | 6 / 35 |
| serious Total, serious adverse events | 2 / 35 |
Outcome results
Number of Adherent Participants
The number of participants who complete all exercise sessions, with percentage calculated
Time frame: 6 weeks
| Arm | Measure | Value (COUNT_OF_PARTICIPANTS) |
|---|---|---|
| Six weeks of digital prehabilitation | Number of Adherent Participants | 21 Participants |
Number of Participants Interested in Participating
The number of patients invited that are willing to be screened for eligibility, with percentage calculated
Time frame: 4 months
| Arm | Measure | Value (COUNT_OF_PARTICIPANTS) |
|---|---|---|
| Six weeks of digital prehabilitation | Number of Participants Interested in Participating | 39 Participants |
Number of Participants Recruited
The number of patients invited that provide written informed consent, with percentage calculated
Time frame: 4 months
| Arm | Measure | Value (COUNT_OF_PARTICIPANTS) |
|---|---|---|
| Six weeks of digital prehabilitation | Number of Participants Recruited | 35 Participants |
Number of Participants Retained
The number of patients that enrol into the study who complete follow-up measurements, with percentage calculated
Time frame: 6 weeks
| Arm | Measure | Value (COUNT_OF_PARTICIPANTS) |
|---|---|---|
| Six weeks of digital prehabilitation | Number of Participants Retained | 24 Participants |
Number of Participants That Passed Screening
The number of willing patients that pass screening for eligibility, with percentage calculated
Time frame: 4 months
| Arm | Measure | Value (COUNT_OF_PARTICIPANTS) |
|---|---|---|
| Six weeks of digital prehabilitation | Number of Participants That Passed Screening | 35 Participants |
Percentage of Compliant Exercise Sessions
The percentage of exercise sessions that are completed as prescribed in terms of intensity, duration, and type of exercise
Time frame: 6 weeks
| Arm | Measure | Value (MEAN) |
|---|---|---|
| Six weeks of digital prehabilitation | Percentage of Compliant Exercise Sessions | 79 Percentage |
1-minute Sit-to-stand Test
Assessed via the number of repetitions completed during a 1-minute sit-to-stand test.
Time frame: Change from pre-intervention (week 0) to post-intervention (week 7).
Population: 19/24 participants completed 1-minute sit-to-stand testing.
| Arm | Measure | Value (MEDIAN) |
|---|---|---|
| Six weeks of digital prehabilitation | 1-minute Sit-to-stand Test | 11 Repetitions |
Anxiety and Depression
Assessed via Hospital Anxiety and Depression Scale (HADS). The highest possible score is 21 and the lowest possible score is 0 for both the anxiety and depression sub-scores. A lower score is favourable as it indicates lower anxiety/depression.
Time frame: Change from pre-intervention (week 0) to post-intervention (week 7)
| Arm | Measure | Group | Value (MEDIAN) |
|---|---|---|---|
| Six weeks of digital prehabilitation | Anxiety and Depression | Anxiety (pre-post change) | -1 Points |
| Six weeks of digital prehabilitation | Anxiety and Depression | Depression (pre-post change) | -1 Points |
Cardiorespiratory Fitness
Assessed via a maximal cardiopulmonary exercise test performed on a cycle ergometer, with measurements of VO2peak (ml/kg/min) and ventilatory threshold (ml/kg/min) derived.
Time frame: Change from pre-intervention (week 0) to post-intervention (week 7)
Population: 21/24 participants completed cardiopulmonary exercise testing.
| Arm | Measure | Group | Value (MEDIAN) |
|---|---|---|---|
| Six weeks of digital prehabilitation | Cardiorespiratory Fitness | Peak oxygen uptake (pre-post change) | 0.3 ml/kg/min |
| Six weeks of digital prehabilitation | Cardiorespiratory Fitness | Ventilatory threshold (pre-post change) | 0.0 ml/kg/min |
Physical Activity Level
Assessed via International Physical Activity Questionnaire (IPAQ) short-form. After data processing, the highest possible score is 25,704 MET-minutes/week and the lowest possible score is 0 MET-minutes/week. A higher score is favourable as it indicates a higher physical activity level.
Time frame: Change from pre-intervention (week 0) to post-intervention (week 7)
Population: 20/24 participants provided complete IPAQ-short form responses for calculation of total physical activity.
| Arm | Measure | Value (MEDIAN) |
|---|---|---|
| Six weeks of digital prehabilitation | Physical Activity Level | 852 MET-minutes/week |
Quality of Life EQ-5D Visual Analogue Scale
Assessed via EuroQol EQ-5D visual analogue scale, with a highest possible score of 100 and a lowest possible score of 0. A higher score is favourable as it indicates better quality of life.
Time frame: Change from pre-intervention (week 0) to post-intervention (week 7)
| Arm | Measure | Value (MEDIAN) |
|---|---|---|
| Six weeks of digital prehabilitation | Quality of Life EQ-5D Visual Analogue Scale | 5 Percentage |
Resting Blood Pressure
Three measurements were made after 15 minutes seated rest using an automated sphygmomanometer, with the average (mean) of the three measurements reported (mmHg)
Time frame: Change from pre-intervention (week 0) to post-intervention (week 7)
| Arm | Measure | Group | Value (MEDIAN) |
|---|---|---|---|
| Six weeks of digital prehabilitation | Resting Blood Pressure | Systolic blood pressure (pre-post change) | 1 mmHg |
| Six weeks of digital prehabilitation | Resting Blood Pressure | Diastolic blood pressure (pre-post change) | 1 mmHg |
Resting Heart Rate
Three measurements were made after 15 minutes seated rest using an automated sphygmomanometer, with the average (mean) of the three measurements reported (bpm)
Time frame: Change from pre-intervention (week 0) to post-intervention (week 7)
| Arm | Measure | Value (MEDIAN) |
|---|---|---|
| Six weeks of digital prehabilitation | Resting Heart Rate | -2 beats/minute |
Carbon Emissions Avoided With Home-based vs. Face-to-face Prehabilitation
An estimation of the carbon emissions avoided by performing prehabilitation at home via PreActiv's digital prehabilitation compared to the estimated hypothetical emissions associated with participants travelling to the hospital three times per week for six weeks for face-to-face prehabilitation. Publicly-available carbon emissions data will be used for calculations.
Time frame: 6 weeks
| Arm | Measure | Value (MEDIAN) |
|---|---|---|
| Six weeks of digital prehabilitation | Carbon Emissions Avoided With Home-based vs. Face-to-face Prehabilitation | 44 Kilograms of carbon emissions avoided |