Elaine Reiche

Context: The Open Landing Error Scoring System (OpenLESS) is a novel development aimed at automating the LESS for assessment of lower extremity movement quality during a jump-landing task. With increasing utilization of clinical measures to monitor outcomes and limited time during clinical visits for a lengthy analysis of functional movement, there is a pressing need to extend automation efforts. Addressing these issues, OpenLESS is an open-source tool that utilizes a freely available markerless motion capture system to automate the LESS using three-dimensional kinematics. Objective: To describe the development of OpenLESS, examine the validity against expert rater LESS scores in healthy and clinically relevant cohorts, and assess the intersession reliability collected across four time points in an athlete cohort. Design: Observational Participants: 92 participants (72 females and 20 males, mean age 23.3 years) from healthy, post-anterior cruciate ligament reconstruction (ACLR; median 33 months since surgery), and amateur athlete cohorts. Main Outcome Measure(s): A software package, “OpenLESS,” was developed to interpret movement quality (LESS score) from kinematics captured from markerless motion capture. Validity and reliability were assessed with intraclass correlation coefficients (ICC), standard error of measure (SEM), and minimal detectable change (MDC). Results: OpenLESS agreed well with expert rater LESS scores for healthy (ICC _{2, k} =0.79) and clinically relevant, post-ACLR cohorts (ICC _{2, k} =0.88). The automated OpenLESS system reduced scoring time, processing all 159 trials in under 15 minutes compared to the 18.5 hours (7 minutes per trial) required for manual expert rater scoring. When tested outside laboratory conditions, OpenLESS showed excellent reliability across repeated sessions (ICC _{2, k} >0.89), with a SEM of 0.98 errors and MDC of 2.72 errors. Conclusion: OpenLESS shows promise as an efficient, automated tool for clinically assessing jump-landing quality, with good validity versus experts in healthy and post-ACLR populations, and excellent field reliability, addressing the need for objective movement analysis. KEY POINTS: OpenLESS accurately detected jump-landing events (ICC>0.99) using markerless motion capture, validating its use as an alternative to laboratory-based force plate measurements. The automated scoring system showed good agreement with expert raters in healthy (ICC=0.79) and post-ACLR (ICC=0.88) populations. OpenLESS demonstrated good to excellent test-retest reliability (ICC=0.89) across multiple testing sessions, with minimal score variation, supporting its utility for longitudinal movement assessment.

Objective: To synthesize the best available evidence regarding the perceptions and current clinical practices of athletic trainers (ATs) in integrating psychological skills into patient management. Data Sources: PubMed, Cumulative Index to Nursing and Allied Health Literature (CINAHL; via EBSCOhost), PsycInfo (via EBSCOhost), SPORTDiscus (via EBSCOhost), and Scopus (via Elsevier). Study Selection: Studies had to investigate the current clinical practices and perceptions of certified ATs in integrating psychologically informed practice for patient management. Studies that had level 4 evidence or higher were included. Studies were excluded if they were published before 1999, the primary language was not English, they involved athletic training students or other rehabilitation specialists, or they explored the athlete’s and/or patient’s perception of psychosocial techniques or strategies. Data Extraction: This systematic review is reported in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses 2020 Statement in Exercise, Rehabilitation, Sport Medicine and Sports Science guidance. Data Synthesis: A total of 1857 articles were reviewed, and 8 met inclusion criteria. Two studies had level 2a evidence, 4 studies had level 4a evidence, and 2 studies had level 4b evidence. Six studies were rated as good quality, and 2 studies were rated as lesser quality. The included studies demonstrated a high-quality body of evidence with consistent results, which strengthens the review findings. Conclusions: Athletic trainers have the knowledge to identify when athletes are psychologically affected by injury and can identify common psychological responses. Although ATs acknowledge the value of implementing psychosocial strategies, a lack of confidence in implementing basic or advanced techniques, feeling underprepared by their educational program, and a lack of clinical training appear to affect the use of psychosocial techniques in clinical practice and the rate of mental health recognition and referral among ATs.

Context: Early identification of knee osteoarthritis (OA) symptoms after anterior cruciate ligament reconstruction (ACLR) could enable timely interventions to improve long-term outcomes. However, little is known about the change in early OA symptoms from 6 to 12 months post-ACLR. Objective: To evaluate the change over time in meeting classification criteria for early knee OA symptoms from 6 to 12 months after ACLR. Design: Prospective cohort study. Setting: Research laboratory. Patients or Other Participants: Eighty-two participants aged 13 to 35 years who underwent unilateral primary ACLR. On average, participants’ first and second visits were 6.2 and 12.1 months post-ACLR. Main Outcome Measure(s): Early OA symptoms were classified using generic (Luyten Original) and patient population–specific (Luyten Patient Acceptable Symptom State [PASS]) thresholds on Knee injury and Osteoarthritis Outcome Score (KOOS) subscales. Changes in meeting early OA criteria were compared between an initial and follow-up visit at an average of 6 and 12 months post-ACLR, respectively. Results: Twenty-two percent of participants exhibited persistent early OA symptoms across both visits using both the Luyten Original and PASS criteria. From initial to follow-up visit, 18% to 27% had resolution of early OA symptoms, while 4% to 9% developed incident symptoms. In total, 48% to 51% had no early OA symptoms at either visit. No differences were found for change in early OA status between adults and adolescents. Conclusions: Nearly one-quarter of participants exhibited persistent early knee OA symptoms based on KOOS thresholds from 6 to 12 months post-ACLR. Determining if this symptom persistence predicts worse long-term outcomes could inform the need for timely interventions after ACLR. Future researchers should examine if resolving persistent symptoms in this critical window improves later outcomes. Tracking early OA symptoms over time may identify high-risk patients who could benefit from early treatment.

Visuomotor reaction time (VMRT) is predictive of lower-extremity musculoskeletal injury and may be a modifiable anterior cruciate ligament (ACL) injury risk factor that affects the incidence of primary and secondary ACL injuries in females. However, it is unknown if females with ACL reconstruction (ACLR) experience diminished VMRT compared with their male counterparts. The purpose of this study was to compare lower-extremity VMRT (LEVMRT) between males and females with ACLR. Female (n = 40) and male (n = 20) participants who were between 4 and 12 months after primary, unilateral ACLR completed a LEVMRT task with each limb using a series of wireless light discs. Mann–Whitney U tests were used to compare between-group differences for LEVMRT (in milliseconds). No statistically significant sex differences were observed for LEVMRT when the ACLR limb deactivated the light discs (females = 509.5 [132.5], males = 507.0 [79.8]; p = .77) or when the ACLR limb was stabilizing while the nonsurgical limb deactivated the light discs (females = 528.5 [105.3], males = 546.0 [92.5]; p = .77). Both males and females may benefit from visual motor training to improve VMRT after ACLR.

Context: Injury-related fear and quadriceps strength are independently associated with secondary anterior cruciate ligament (ACL) injury risk. It is not known whether injury-related fear and quadriceps strength are associated, despite their individual predictive capabilities of secondary ACL injury. The purpose of this study was to examine the association between injury-related fear and quadriceps strength in individuals at least 1 year after ACL reconstruction (ACLR). Design: Cross-sectional study. Methods: Forty participants between the ages of 18 and 35 years at least 1 year post unilateral primary ACLR. Participants completed the Tampa Scale of Kinesiophobia-11 (TSK-11) and a standard isokinetic quadriceps strength assessment using the Biodex Isokinetic Dynamometer. Pearson Product-Moment correlations were used to examine the linear association between the TSK-11 scores and peak torque (in nanometers per kilogram) for each limb and between the TSK-11 scores and limb symmetry indices for each limb. Pearson Product-Moment correlation coefficients (r) were interpreted as very high (.90–1.00), high (.70–.90), moderate (.50–.70), low (.30–.50), and no correlation (.00–.30). Results: The average TSK-11 score was 18.2 (5.3), average ACLR peak quadriceps torque was 1.9 (0.50) N·m/kg, average contralateral peak quadriceps torque was 2.3 (0.48) N·m/kg, and average limb symmetry index was 85.3% (12.6%). There was no statistically significant correlation between the TSK-11 and peak quadriceps torque on the ACLR limb (r = .12, P = .46), the TSK-11 and contralateral limb (r = .29, P = .07), or the TSK-11 and limb symmetry index (r = –.18, P = .27). Conclusions: There was no association between kinesiophobia and peak isokinetic quadriceps strength in individuals at least 1 year post-ACLR. Both factors, independently, have been shown to influence risk of secondary injury in patients after ACLR.

Mindfulness meditation (MM) has decreased kinesiophobia in patients with knee pathologies. Mobile application-delivered MM (Mobile MM) may reduce kinesiophobia in individuals after anterior cruciate ligament reconstructions (ACLR). The purpose of this study was to examine the feasibility (i.e., retention, adherence, and acceptability) and preliminary efficacy of a 4-week Mobile MM intervention in individuals with a history of ACLR. Nine participants ≥1 year post unilateral ACLR completed 12 sessions of Mobile MM over 4 weeks via the Headspace mobile application that were facilitated remotely through a Health Insurance Portability and Accountability ACT of 1996 (HIPAA) compliant teleconference system. Participant retention of 100% and intervention adherence of 100% were observed. Participants reported moderate to high acceptability for the Mobile MM. A large between-group effect size of 1.6 [0.13, 2.98] in the Tampa Scale of Kinesiophobia-11 change score was observed. Mobile MM is a feasible intervention to address kinesiophobia in individuals with a history of ACLR.

Clinical Question: Is there evidence to support the use of mindfulness to reduce injury risk in athletic populations? Clinical Bottom Line: There is currently inconsistent, good-quality evidence to support that mindfulness interventions are effective in decreasing injury rates in athletes compared to the standard of care. Future research should investigate the effectiveness of mindfulness in other populations and types of sports activity (e.g., basketball, gymnastics, etc.). Additionally, future research should investigate different mindfulness delivery techniques in addition to the Mindfulness–Acceptance–Commitment (MAC) approach. Due to the inconsistent, good-quality evidence to support the use of mindfulness to reduce injury rates, the grade of B is recommended by the Strength of Recommendation Taxonomy. Mindfulness interventions should be incorporated into clinical practice but stakeholders (e.g., coaches, athletes, administration) should be included in the decision to implement these programs.