Does the physical activity profile change in patients with hip dysplasia from before to 1 year after periacetabular osteotomy?

Abstract

Background and purpose — Knowledge of physical activity profiles among patients with hip dysplasia is lacking. We investigated whether patients with hip dysplasia change physical activity profile from before to 1 year after periacetabular osteotomy. Furthermore, we investigated associations between change in accelerometer-based physical activity and change in self-reported participation in preferred physical activities (PA).Patients and methods — Physical activity was objectively measured at very low to high intensity levels with accelerometer-based sensors. Subjectively, PA was recorded with Copenhagen Hip and Groin Outcome Score (HAGOS) in 77 patients. Associations between the 2 were analyzed with simple linear regression analyses.Results — Changes in accelerometer-based physical activity ranged from –2.2 to 4.0% points at all intensity levels from baseline to 1-year follow-up. These changes represent very small effect sizes (–0.16 to 0.14). In contrast, self-reported PA showed a statistically and clinically relevant increase of 22 (CI 14–29) HAGOS PA points 1 year post-surgery. Associations between change in accelerometer-based physical activity and change in self-reported PA were, however, not statistically significant and correspond to a percentage change in physical activity of only –0.87% to 0.65% for a change of 10 HAGOS PA points.Interpretation — Patients with hip dysplasia do not seem to change physical activity profile 1 year post-surgery if measured with objective accelerometer-based sensors. This is interesting as self-reported PA indicates that patients’ ability to participate in physical activity increases, suggesting that this increased self-reported participatory capacity is not manifested as increased objectively measured physical activity.

Standardised measurement of physical capacity in young and middle-aged active adults with hip-related pain: recommendations from the first International Hip-related Pain Research Network (IHiPRN) meeting, Zurich, 2018

“…However, the placement, location and design of an accelerometer may limit the type of physical activity that can be captured 27. Self-reported measures also capture different dimensions of physical activity than objective measures,25 28 as well as the person’s response to physical activity (eg, muscle soreness, general fatigue, and so on).…”

“…Physical activity trackers and smartphone technology may be appropriate for use for people with hip-related pain 26 28–31. Recent advances in technology allow for the easy objective measurement of physical activity in clinic, with commercial devices such as Fitbit demonstrating adequate accuracy, reliability and validity in measuring physical activity levels for both clinical and research purposes 27 32.…”

Isometric hip strength impairments in patients with hip dysplasia are improved but not normalized 1 year after periacetabular osteotomy: a cohort study of 82 patients

“…This is a prospective cohort study with 1-year follow-up, comparing isometric hip muscle strength between patients with hip dysplasia and healthy volunteers. The study is part of a prospective investigation on the same patient population, reporting pain and ultrasonographic abnormalities in hip muscles and tendons and physical activity level before and after PAO (Jacobsen et al 2018a(Jacobsen et al , 2018b(Jacobsen et al , 2018c(Jacobsen et al , 2019.…”

“…The study is part of a prospective investigation on the same patient population, reporting pain and ultrasonographic abnormalities in hip muscles and tendons and physical activity level before and after PAO (Jacobsen et al. 2018a , 2018b , 2018c , 2019 ).…”

“…As mentioned earlier, this study is part of a prospective investigation on the same patient population (Jacobsen et al 2018a(Jacobsen et al , 2018b(Jacobsen et al , 2018c(Jacobsen et al , 2019. Thus, we did not perform an ordinary sample size calculation for this study as the numbers of patients were fixed when planning this analysis.…”