ArticleJournal of athletic training2022
Influence of Severity and Duration of Anterior Knee Pain on Quadriceps Function and Self-Reported Function.
Article in Journal of athletic training, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed.
- Chronic Pain Influences Lower Extremity Energetics During Landing Cutting in Patients With Chronic Ankle Instability.Journal of athletic training · 2025Article
- Hip Abductors Strength and Endurance in Individuals with Recent and Long-Standing Patellofemoral Pain.Journal of athletic training · 2025Article
- Validity and Agreement of a Portable Dynamometer in Evaluating Hip Strength and Rate of Torque Development: Influence of Fixation Methods.International journal of sports physical therapy · 2025Article
- Individuals with patellofemoral pain have impaired self-reported and performance-based function: Systematic review with meta-analysis and meta-regression.Journal of athletic training · 2024Article
- The relationship between pain duration characteristics and pain intensity in herpes zoster-related pain: a single-center retrospective study.Frontiers in medicine · 2024Article
- Exercise-induced fatigue affects knee proprioceptive acuity and quadriceps neuromuscular function more in patients with ACL reconstruction or meniscus surgery than in healthy individuals.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2023Article
- Quadriceps Neuromuscular Function During and After Exercise-Induced Fatigue in Patients With Patellofemoral Pain.Journal of athletic training · 2023Article
- Patellofemoral pain over time: Protocol for a prospective, longitudinal study investigating physical and non-physical features.Frontiers in sports and active living · 2022Article
- Sex Differences in Knee Extensor Neuromuscular Function in Individuals With and Without Patellofemoral Pain.Sports healthArticle
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Authors and funding
2 authors.
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Abstract
contextLittle is known about how the combination of pain severity and duration affects quadriceps function and self-reported function in patients with anterior knee pain (AKP).
objectiveTo examine how severity (low [≤3 of 10] versus high [>3 of 10]) and duration (short [<2 years] versus long [>2 years]) of AKP affect quadriceps function and self-reported function.
designCross-sectional study.
settingLaboratory. PATIENTS OR OTHER
participantsSixty patients with AKP (mean pain severity = 4 of 10 on the numeric pain rating scale, mean pain duration = 38 months) and 48 healthy control individuals. Patients with AKP were categorized into 3 subdivisions based on pain: (1) severity (low versus high); (2) duration (short versus long); and (3) severity and duration (low and short versus low and long versus high and short versus high and long). MAIN OUTCOME MEASURE(S): Quadriceps maximal (maximal voluntary isometric contraction) and explosive (rate of torque development) strength, activation (central activation ratio), and endurance (average peak torque) and self-reported function (Lower Extremity Functional Scale score).
resultsCompared with the healthy control group, (1) all AKP subgroups showed less quadriceps maximal strength (P < .005, d ≥ 0.78) and activation (P < .02, d ≥ 0.85), except for the AKP subgroup with low severity and short duration of pain (P > .32); (2) AKP subgroups with either high severity or long duration of pain showed less quadriceps explosive strength (P < .007, d ≥ 0.74) and endurance (P < .003, d ≥ 0.79), but when severity and duration were combined, only the AKP subgroup with high severity and long duration of pain showed less quadriceps explosive strength (P = .006, d = 1.09) and endurance (P = .0004, d = 1.21); and (3) all AKP subgroups showed less self-reported function (P < .0001, d ≥ 3.44).
conclusionsClinicians should be aware of the combined effect of severity and duration of pain and incorporate both factors into clinical practice when rehabilitating patients with AKP.
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