A behavioral intervention promoting physical activity in people with subacute spinal cord injury: secondary effects on health, social participation and quality of life.

OBJECTIVE: To assess, for people with subacute spinal cord injury, if rehabilitation that is reinforced with the addition of a behavioral intervention to promote physical activity leads to a better health, participation and quality of life. DESIGN: Randomized controlled trial. SETTING: Rehabilitation centers. PARTICIPANTS: A total of 39 participants analyzed (45 included), with subacute spinal cord injury in inpatient rehabilitation, dependent on a manual wheelchair (33% tetraplegia, 62% motor complete, 150 ±74 days postinjury). INTERVENTION: A behavioral intervention promoting physical activity after discharge, involving 13 individual sessions delivered by a coach trained in motivational interviewing, beginning two months before and ending six months after discharge from inpatient rehabilitation. MAIN MEASURES: Physical capacity as determined during a maximal exercise test, body mass index, blood pressure, fasting lipid profile, and social participation (IMPACT-S) and quality of life (SF-36) were determined using questionnaires. Measurements were performed two months before discharge, at discharge, and six and 12 months after discharge from inpatient rehabilitation. B represents the between-group difference. RESULTS: Twelve months after discharge, significant intervention effects were found for diastolic blood pressure (B = -11.35 mmHg, 95% CI = -19.98 to -2.71), total cholesterol (B = -0.89 mmol/L, 95% CI = -1.59 to -0.20), low-density lipoprotein cholesterol (B = -0.63 mmol/L, 95% CI = -1.25 to -0.00) and participation (B = 9.91, 95% CI = 3.34 to 16.48). CONCLUSIONS: A behavioral intervention promoting physical activity after discharge from inpatient rehabilitation improves social participation and seems to reduce risk factors for cardiovascular disease in people with subacute spinal cord injury.

Validation of an activity monitor for children who are partly or completely wheelchair-dependent.

BACKGROUND: Children who are wheelchair-dependent are at risk for developing unfavorable physical behavior; therefore, assessment, monitoring and efforts to improve physical behavior should start early in life. VitaMove is an accelerometer-based activity monitor and can be used to detect and distinguish different categories of physical behavior, including activities performed in a wheelchair and activities using the legs. The purpose of this study was to assess the validity of the VitaMove activity monitor to quantify physical behavior in children who are partly or completely wheelchair-dependent. METHODS: Twelve children with spina bifida (SB) or cerebral palsy (CP) (mean age, 14 ± 4 years) performed a series of wheelchair activities (wheelchair protocol) and, if possible, activities using their legs (n = 5, leg protocol). Activities were performed at their own home or school. In children who were completely wheelchair-dependent, VitaMove monitoring consisted of one accelerometer-based recorder attached to the sternum and one to each wrist. For children who were partly ambulatory, an additional recorder was attached to each thigh. Using video-recordings as a reference, primary the total duration of active behavior, including wheeled activity and leg activity, and secondary agreement, sensitivity and specificity scores were determined. RESULTS: Detection of active behaviour with the VitaMove activity monitor showed absolute percentage errors of 6% for the wheelchair protocol and 10% for the leg protocol. For the wheelchair protocol, the mean agreement was 84%, sensitivity was 80% and specificity was 85%. For the leg protocol, the mean agreement was 83%, sensitivity was 78% and specificity was 90%. Validity scores were lower in severely affected children with CP. CONCLUSIONS: The VitaMove activity monitor is a valid device to quantify physical behavior in children who are partly or completely wheelchair-dependent, except for severely affected children and for bicycling.

Inactive and sedentary lifestyles amongst ambulatory adolescents and young adults with cerebral palsy.

BACKGROUND: To assess physical behaviour, including physical activity and sedentary behaviour, of ambulatory adolescents and young adults with cerebral palsy (CP). We compared participant physical behaviour to that of able-bodied persons and assessed differences related to Gross Motor Functioning Classification System (GMFCS) level and CP distribution (unilateral/bilateral). METHODS: In 48 ambulatory persons aged 16 to 24 years with spastic CP and in 32 able-bodied controls, physical behaviour was objectively determined with an accelerometer-based activity monitor. Total duration, intensity and type of physical activity were assessed and sedentary time was determined (lying and sitting). Furthermore, distribution of walking bouts and sitting bouts was specified. RESULTS: Adolescents and young adults with CP spent 8.6% of 24 hours physically active and 79.5% sedentary, corresponding with respectively 123 minutes and 1147 minutes per 24 hours. Compared to able-bodied controls, persons with CP participated 48 minutes less in physical activities (p < 0.01) and spent 80 minutes more sedentary per 24 hours (p < 0.01). Physical behaviour was not different between persons with GMFCS level I and II and only number of short sitting bouts were significantly more prevalent in persons with bilateral CP compared to unilateral CP (p < 0.05). CONCLUSIONS: Ambulatory adolescents and young adults with CP are less physically active and spend more time sedentary compared to able-bodied persons, suggesting that this group may be at increased risk for health problems related to less favourable physical behaviour. TRIAL REGISTRATION: Nederlands trial register: NTR1785.

A behavioural intervention increases physical activity in people with subacute spinal cord injury: a randomised trial.

QUESTIONS: For people with subacute spinal cord injury, does rehabilitation that is reinforced with the addition of a behavioural intervention to promote physical activity lead to a more active lifestyle than rehabilitation alone? DESIGN: Randomised, controlled trial with concealed allocation, intention-to-treat analysis, and blinded assessors. PARTICIPANTS: Forty-five adults with subacute spinal cord injury who were undergoing inpatient rehabilitation and were dependent on a manual wheelchair. The spinal cord injuries were characterised as: tetraplegia 33%; motor complete 62%; mean time since injury 150 days (SD 74). INTERVENTION: All participants received regular rehabilitation, including handcycle training. Only the experimental group received a behavioural intervention promoting an active lifestyle after discharge. This intervention involved 13 individual sessions delivered by a coach who was trained in motivational interviewing; it began 2 months before and ended 6 months after discharge from inpatient rehabilitation. OUTCOME MEASURES: The primary outcome was physical activity, which was objectively measured with an accelerometer-based activity monitor 2 months before discharge, at discharge, and 6 and 12 months after discharge from inpatient rehabilitation. The accelerometry data were analysed as total wheeled physical activity, sedentary time and motility. Self-reported physical activity was a secondary outcome. RESULTS: The behavioural intervention significantly increased wheeled physical activity (overall between-group difference from generalised estimating equation 21minutes per day, 95% CI 8 to 35). This difference was evident 6 months after discharge (28minutes per day, 95% CI 8 to 48) and maintained at 12 months after discharge (25minutes per day, 95% CI 1 to 50). No significant intervention effect was found for sedentary time or motility. Self-reported physical activity also significantly improved. CONCLUSION: The behavioural intervention was effective in eliciting a behavioural change toward a more active lifestyle among people with subacute spinal cord injury. TRIAL REGISTRATION: NTR2424.