ArticleOrthopaedic journal of sports medicine2021
Relationship Between Anterior Knee Laxity and General Joint Laxity During the Menstrual Cycle.
Article in Orthopaedic journal of sports medicine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 1 of them a synthesis that pooled it.
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Who cites it
14 citing papers in PubMed, 1 synthesis or guideline pooled it, 28 citations in OpenAlex.
- Pooled it
- The difference between subjective symptoms and objective symptom of edema during the menstrual cycle.Scientific reports · 2026Article
- Relative and absolute reliability of medial knee joint space width measurement using ultrasound imaging during valgus stress testing.PloS one · 2026Article
- Neuromusculoskeletal disorders in pregnancy revisited: Insights and clinical implications.Joint diseases and related surgery · 2025Review
- The Association Between Concomitant Meniscal Tear, Tibial Slope, Static Knee Position, and Anterior Knee Laxity in ACL-Deficient Patients.Orthopaedic journal of sports medicine · 2025Article
- Association of Preoperative Cartilage T1ρ Values With Progression of Knee Osteoarthritis 10 Years After Anatomical Double-Bundle ACL Reconstruction: Follow-up of a Previous Prospective Study.Orthopaedic journal of sports medicine · 2025Article
- Article
- Changes in the mechanical properties of the thigh and lower leg muscle-tendon units during the early follicular and early luteal phases.Frontiers in sports and active living · 2024Article
- Knee Laxity in the Menstrual Cycle after Anterior Cruciate Ligament Reconstruction: A Case Series.International journal of environmental research and public health · 2023Article
- Sex differences in musculoskeletal injury and disease risks across the lifespan: Are there unique subsets of females at higher risk than males for these conditions at distinct stages of the life cycle?Frontiers in physiology · 2023Review
- Menstrual Cycle Changes Joint Laxity in Females-Differences between Eumenorrhea and Oligomenorrhea.Journal of clinical medicine · 2022Article
- Relationship between Muscle Flexibility and Characteristics of Muscle Contraction in Healthy Women during Different Menstrual Phases.Physical therapy research · 2022Article
- The Reliability of the GNRB® Knee Arthrometer in Measuring ACL Stiffness and Laxity: Implications for Clinical Use and Clinical Trial Design.International journal of sports physical therapy · 2022Article
- Comparison of anterior knee laxity, stiffness, genu recurvatum, and general joint laxity in the late follicular phase and the ovulatory phase of the menstrual cycle.BMC musculoskeletal disorders · 2021Article
Corrections and comments
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Authors and funding
10 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundAnterior cruciate ligament (ACL) injury has been reported to have a higher incidence in women than in men. PURPOSE/HYPOTHESIS: The purpose was to examine the relationship of anterior knee laxity (AKL), stiffness, and generalized joint laxity (GJL) with respect to the menstrual cycle. It was hypothesized that AKL and GJL would increase during the ovulation phase, when estrogen levels are high. STUDY
designDescriptive laboratory study.
methodsA total of 15 female university students aged >20 years and with normal menstrual cycles were evaluated. AKL was measured as anterior tibial displacement of the femur after application of 44-, 89-, and 133-N loads to the tibia. Stiffness was calculated as Δ force/Δ displacement at loads between 44 and 89 N and between 89 and 133 N. The University of Tokyo joint laxity test was used for evaluation of GJL. The participants' menstrual cycle was divided into the early follicular, late follicular, ovulation, and luteal phases using the basal body temperature method and an ovulation kit; AKL and GJL were measured once during each phase. Participants were also stratified according to the presence or absence of genu recurvatum (GR).
resultsThere was no significant difference in AKL, stiffness, or GJL among the menstrual phases. In the GR group, AKL values at 89 N and 133 N were significantly higher in the ovulation phase than in the early follicular phase (
conclusionWomen with GR may have increased AKL in the ovulation phase when compared with the early follicular phase, which may be a risk factor for ACL injury. CLINICAL RELEVANCE: The results of this study suggest that the ovulation phase may be related to the greater incidence of ACL injuries in women.
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