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4.P.35 THE EFFECT OF PHYSICAL ACTIVITY PROMOTION ON DAILY PHYSICAL ACTIVITY IN PEDIATRIC BONE TUMOR PATIENTS: PRELIMINARY RESULTS



Abstract

Pediatric patients with lower extremity sarcoma often experience long lasting restrictions concerning physical activity and walking due to the required off-loading of the limb and other consequences of surgeries. Activity promotion during treatment in addition to physiotherapy could improve patients’ activity levels and walking capabilities.

In the present study we investigated the ambulatory activity of 31 pediatric patients (13.7 ± 3.1 years, 1.63 ± 0.15 m, 51.9 ± 15 kg, 19.3 ± 3.7 kg/m2) with Osteosarcoma or Ewing sarcoma at the lower limb using the StepWatch™ Activity monitor (SAM; Orthocare Innovations, USA). Sixteen patients regularly underwent supervised exercise interventions during inpatient stays, 15 did not receive any additional intervention. Step activities were measured for seven consecutive days during home stays at five different points in time, to determine a possible transfer of activity to everyday life.

Patients without intervention assembled considerably less steps than those in the intervention group. Before surgery they reached 25.4% of the intervention group (total n=16), six weeks after surgery 40% (total n= 8), after three months 46% (total n=10), after six months 72% (total n=13) and after one year 90%. However differences only reached significance at the first measurement.

Data presented must be considered as preliminary. Not all patients could be measured at all appointments due to impaired walking ability. Nevertheless activity promoting interventions during inpatient stays seem to have a positive influence on patients’ daily walking activity. Though the differences between the groups are not significant they are considerable. Especially during treatment – as reflected by the first three measurements- patients could benefit from additional interventions exceeding typical therapy regimes. Interventions should be individualized to the patients’ capabilities. Conclusions concerning tumor location or surgical procedures are not yet possible. Future research should furthermore concentrate on the effects of activity promotion on other fields of well-being.

Correspondence should be addressed to Professor Stefan Bielack, Olgahospital, Klinikum Stuttgart, Bismarkstrasse 8, D-70176 Stuttgart, Germany. Email: s.bielack@klinikum_stuttgart.de