Sex Differences In Objectively Measured Physical Activity Among Individuals With ACL Reconstruction
Year: 2018
Type: conference-abstract
Abstract: Females are more likely to experience poor knee-related outcomes and are less likely to return to pre-injury levels of return to sport following ACLR as compared to males of the same age and pre-injury activity level. Evidence has shown that young adults with ACLR participate in significantly less moderate-to-vigorous physical activity (MVPA) as compared to healthy matched. However, it is not clear if an individual’s sex is a factor in their determining the likelihood of engagement in healthy levels of MVPA following ACLR. PURPOSE: To examine the effects of sex and ACLR status on the volume of MVPA in which an individual engages as well as the likelihood that an individual will meet national guidelines for weekly MVPA. METHODS: 31 individuals with a history of ACLR (Sex = 22F/9M, Age = 20.3 ± 1.7 years, BMI = 23.3 ± 2.8kg/m2, Time since surgery = 28.2 ± 17.1mo) and 32 healthy individuals (Sex = 22F/10M, Age = 20.8 ± 1.6 years, BMI = 23.3 ± 30kg/m2) enrolled in this study. Objective MVPA in Freedson bouts (min/ wk) were assessed with an ActiGraph GT3X-BT accelerometer worn on an elastic belt at the hip over a period of 7 days with a minimum of 4 days of wear with ≥10 hours per day. Wear time (min/day) was validated using recommendations of Choi et al. Between group (ACLR, Healthy) and sex (M/F) differences in MVPA in Freedson bouts were investigated using a 2 (group) x 2 (sex) ANOVA. Fischer’s exact test was utilized to assess the sex-based difference in meeting national MVPA recommendations (MVPA > 150 min/wk) among individuals with ACLR. RESULTS: Overall, individuals with ACLR (MVPA = 114±95 min/week) participated in less MVPA in Freedson Bouts per week as compared to healthy individuals (MVPA = 212±138 min/wk, p = 0.002). Females (MVPA = 184±133min/wk) were more active than males (MVPA = 116±102 min/wk, p = 0.02). There was no meaningful interaction between group and sex (p = 0.06) but females with ACLR (72.0%) were more likely to meet MVPA guidelines when compared to males (36.3%, p = 0.05). CONCLUSION: Individuals with ACLR participate in less MVPA than those with no history of knee injury which is consistent with previous findings. While no interaction was present between sex and history of ACLR, females with ACLR were more likely to meeting MVPA guidelines which may have implications for long term health risks associated with ACLR.
Authors: Christopher Kuenze, Lisa Cadmus-Bertram, Karin Pfeiffer, Caroline Lisee, Stephanie Trigsted, Dane Cook, David Bell
Language: English
Subfield: Surgery
Field: Medicine
Domain: Health Sciences
Open Access status: hybrid
OpenAlex ID: W2807511072