Assessment of abdominal muscle function using the Biodex System-4. Validity and reliability in healthy volunteers and patients with giant ventral hernia
- 5 March 2011
- journal article
- Published by Springer Science and Business Media LLC in Hernia
- Vol. 15 (4), 417-421
- https://doi.org/10.1007/s10029-011-0805-1
Abstract
The decrease in recurrence rates in ventral hernia surgery have led to a redirection of focus towards other important patient-related endpoints. One such endpoint is abdominal wall function. The aim of the present study was to evaluate the reliability and external validity of abdominal wall strength measurement using the Biodex System-4 with a back abdomen unit. Ten healthy volunteers and ten patients with ventral hernias exceeding 10 cm were recruited. Test–retest reliability, both with and without girdle, was evaluated by comparison of measurements at two test occasions 1 week apart. Reliability was calculated by the interclass correlation coefficients (ICC) method. Validity was evaluated by correlation with the well-established International Physical Activity Questionnaire (IPAQ) and a self-assessment of abdominal wall strength. One person in the healthy group was excluded after the first test due to neck problems following minor trauma. The reliability was excellent (>0.75), with ICC values between 0.92 and 0.97 for the different modalities tested. No differences were seen between testing with and without a girdle. Validity was also excellent both when calculated as correlation to self-assessment of abdominal wall strength, and to IPAQ, giving Kendall tau values of 0.51 and 0.47, respectively, and corresponding P values of 0.002 and 0.004. Measurement of abdominal muscle function using the Biodex System-4 is a reliable and valid method to assess this important patient-related endpoint. Further investigations will be made to explore the potential of this technique in the evaluation of the results of ventral hernia surgery, and to compare muscle function after different abdominal wall reconstruction techniques.Keywords
This publication has 18 references indexed in Scilit:
- Effect of instruction, surface stability, and load intensity on trunk muscle activityJournal of Electromyography and Kinesiology, 2009
- Effect of Stitch Length on Wound Complications After Closure of Midline IncisionsArchives of Surgery, 2009
- Validation of an Inguinal Pain Questionnaire for assessment of chronic pain after groin hernia repairBritish Journal of Surgery, 2007
- Risk Factors for Long-term Pain After Hernia SurgeryAnnals of Surgery, 2006
- Long-term Follow-up of a Randomized Controlled Trial of Suture Versus Mesh Repair of Incisional HerniaAnnals of Surgery, 2004
- Prognosis factors in incisional hernia surgery: 25 years of experienceHernia, 2004
- Postoperative pain assessment tools in day surgery: literature reviewJournal of Advanced Nursing, 2004
- International Physical Activity Questionnaire: 12-Country Reliability and ValidityMedicine & Science in Sports & Exercise, 2003
- RELIABILITY OF ISOKINETIC ANKLE DORSIFLEXOR STRENGTH MEASUREMENTS IN HEALTHY YOUNG MEN AND WOMENJournal of Rehabilitation Medicine, 1999
- Forming inferences about some intraclass correlation coefficients.Psychological Methods, 1996