Beyond peak torque: Longitudinal analysis of angle-specific isokinetic knee torques in collegiate athletes post-ACLR

Koçak, Umut Ziya; Knurr, Keith A.; Cobian, Daniel G.; Heiderscheit, Bryan C.

doi:10.1016/j.ptsp.2023.02.004

Cited by 5 publications

(1 citation statement)

References 36 publications

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“…[101][102][103] Additional seven studies have used isokinetic devices to evaluate the isokinetic strength of the quadriceps and hamstrings (Table 5). [104][105][106][107][108][109][110] The median number of participants was 30 .…”

Section: Anterior Cruciate Ligament Injuriesmentioning

confidence: 99%

Scoping Review of One-Dimension Statistical Parametric Mapping in Lower Limb Biomechanical Analysis

Yona,

Kamel,

Cohen-Eick

et al. 2023

Preprint

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BackgroundBiomechanics is crucial in enhancing sports performance and preventing injury. Traditionally, discrete point analysis is used to analyze important kinetic and kinematic data points, reducing continuous data to a single point. One-dimensional Statistical Parametric Mapping (spm1d) offers a more comprehensive approach by assessing entire movement curves instead of isolated peak values. Nevertheless, spm1d is still underutilized in various sports and sports-related injuries.PurposeTo summarize the existing literature on the application of spm1d in sports biomechanics, including the kinetics and kinematics of the hip, knee, and ankle joints, as well as to identify gaps in the literature that may require further research.MethodsA scoping review was conducted, searching PubMed, Embase, Web of Science, and ProQuest databases. English peer-reviewed studies using SPM to assess lower limb kinetics or kinematics in different sports or sports-related injuries were included. In contrast, reviews, meta-analyses, conference abstracts, grey literature, and studies focusing on non-kinetic or kinematic outcomes were excluded.ResultsThe review yielded 129 papers, with an increased number of studies published in the last three years. Of these studies, 81 examined healthy individuals (63%), and 48 focused on injured populations (37%). Running (n=28), cutting (n=21), and jumping/landing (n=14) were the most common activities. The most prevalent sport-related injuries examined were anterior cruciate ligament rupture (n=21), chronic ankle instability (n=16), and hip-related pain (n=9). Research gaps include the underrepresentation of common sports and movements, small sample size, lack of studies in non-laboratory settings and varied active age groups, and absence of evaluations on the effects of protective sports gear other than shoes.ConclusionThe application of spm1d in sports biomechanics demonstrates diverse uses in sports performance, injury reduction, and rehabilitation. While spm1d shows promise in improving our understanding of sports biomechanics, there are still significant gaps in the literature that present future research opportunities.

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Section: Anterior Cruciate Ligament Injuriesmentioning

confidence: 99%

Scoping Review of One-Dimension Statistical Parametric Mapping in Lower Limb Biomechanical Analysis

Yona,

Kamel,

Cohen-Eick

et al. 2023

Preprint

View full text Add to dashboard Cite

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Validity of a commercially available load cell dynamometer in measuring isometric knee extension torque in patients with knee disorders

Center,

Willy,

Elias

et al. 2024

Physical Therapy in Sport

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Does It Matter? Isometric or Isokinetic Assessment of Quadriceps Strength Symmetry 9 Months After ACLR in Collegiate Athletes

Cobian,

Knurr,

Joachim

et al. 2024

Sports Health: A Multidisciplinary Approach

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Background: Greater quadriceps strength symmetry is associated with better outcomes after anterior cruciate ligament reconstruction (ACLR). Isometric and isokinetic assessments of quadriceps strength inform therapeutic exercise prescription and return-to-sport decisions. It is unclear whether isometric and isokinetic measures provide similar information post-ACLR. Hypothesis: Quadriceps strength symmetry is similar between isometric and isokinetic assessments. Isokinetic and isometric strength symmetries have similar associations to functional knee kinetics and self-reported knee function. Study Design: Cross-sectional study. Level of Evidence: Level 3. Methods: NCAA Division I athletes (N = 35), 8.9 ± 2.5 months post-ACLR completed isometric and isokinetic quadriceps strength assessments, countermovement jumps (CMJs), and treadmill running. Self-reported knee function was assessed using the International Knee Documentation Committee Subjective Knee Form (IKDC). Agreement between isometric and isokinetic strength symmetry was assessed using Bland-Altman analysis, with associations to functional knee kinetics and IKDC assessed using Pearson correlations and linear regressions. Results: Mean difference in quadriceps strength symmetry between isokinetic and isometric assessments was 1.0% (95% limits of agreement of -25.1% to 23.0%). Functional knee kinetics during running and CMJ were moderately to strongly associated with isometric strength symmetry ( r = 0.64-0.80, P < 0.01) and moderately associated with isokinetic strength symmetry ( r = 0.41-0.58, P < 0.01). IKDC scores were weakly to moderately associated with isometric ( r = 0.39, P = 0.02) and isokinetic ( r = 0.49, P < 0.01) strength symmetry. Conclusion: Isokinetic and isometric assessments of quadriceps strength symmetry in collegiate athletes 9 months post-ACLR demonstrated strong agreement. Quadriceps strength symmetry is associated with functional knee kinetic symmetry post-ACLR. Clinical Relevance: Considerable individual variation suggests mode of contraction should be consistent throughout postoperative assessment. Isometric strength symmetry may be a better indicator of functional knee kinetic symmetry, while isokinetic strength symmetry may be associated more closely with patient-reported outcomes.

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Beyond peak torque: Longitudinal analysis of angle-specific isokinetic knee torques in collegiate athletes post-ACLR

Cited by 5 publications

References 36 publications

Scoping Review of One-Dimension Statistical Parametric Mapping in Lower Limb Biomechanical Analysis

Scoping Review of One-Dimension Statistical Parametric Mapping in Lower Limb Biomechanical Analysis

Validity of a commercially available load cell dynamometer in measuring isometric knee extension torque in patients with knee disorders

Does It Matter? Isometric or Isokinetic Assessment of Quadriceps Strength Symmetry 9 Months After ACLR in Collegiate Athletes

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