Novice Inter-Rater Reliability on the Selective Functional Movement Assessment (SFMA) After a 4-Hour Training Session

Background The Selective Functional Movement Assessment (SFMA) is a whole-body movement classification system that identifies non-optimal movement performance requiring further assessment. There needs to be more evidence specifying the training time required to obtain SFMA reliability for entry-level health care practitioners. Purpose The primary intent of this study was to determine SFMA inter-rater reliability between two third-year physical therapy students following an in-person three-hour training and one-hour follow-up training with a certified SFMA physical therapist. The secondary purpose was to compare rater scores of the composite criterion 50-point checklist and rater categorization using the top-tier movements in real-time assessments of healthy participants. Study Design Inter-rater reliability study. Methods Two novice raters received training on assessing movement using the SFMA. Participants included non-pregnant healthy adults screened for general exercise, participants were excluded for history of orthopedic surgery within the prior six months. Three independent raters, including two novice and one SFMA-certified rater, individually assessed the top-tier movements in separate rooms in real-time. Participants were randomly assigned a start location, and raters were blinded to each other’s criterion 50-point checklist and categorical scoring. Statistical analysis included a paired t-test, a repeated measures ANOVA, and a two-way, mixed absolute agreement ICC. Results Twenty-five participants (23.4 years ± 1.9; 72% female) completed the SFMA top-tier movements. Significant differences were identified with novice raters identifying fewer non-optimal movement patterns than the certified clinician. The intraclass correlation coefficient (ICC2,1) was moderate (0.60, p Conclusion Third year physical therapy students were able to demonstrate moderate inter-rater reliability assessing healthy individuals using the 50-point criterion checklist. Variation between novice raters may reflect the amount of previous exposure assessing movement and suggests that some may require more time learning and practicing in order to identify non-optimal movement patterns that may require further assessment. Level of Evidence 3

The Role of Pre-Season Health Characteristics as Injury Risk Factors in Female Adolescent Soccer Players

[Purpose] Determine if female adolescent soccer players with a history of concussion, impaired K-D scores, and pre-season subjective complaints of neck pain, dizziness, and headache were predisposed to additional risk of musculoskeletal or concussive injury during 10-weeks of competitive play. [Participants and Methods] Twenty-three female high school soccer athletes provided concussion history and reported pre-season subjective complaints. K-D testing was performed pre and postseason. During the 10-week season, all injuries, preventing participation in practice or game, were recorded. [Results] Six reported a history of concussion. Of those six, three injuries were reported, including two concussions and a hamstring strain. Baseline K-D scores were worse in athletes that had two or more pre-season subjective factors compared to those that did not have any. Moderate positive correlations were found between a history of concussion and the number of injuries and a history of concussion and K-D post-test scores. [Conclusion] Findings indicate that pre-season subjective factors of neck pain, dizziness and headache, history of concussion, and K-D potentially increased injury risk. Combining pre-season metrics both at baseline and during the course of the season may assist in better injury risk screening in-season or indicate suboptimal function due to cumulative effects

Soccer Heading Drills and Concussion-Related Deficits in High School Female Athletes

Repetitive head impacts from soccer heading may result in concussions in female athletes. Problem Statement: Concussion assessments exist with efforts to limit headers. Heading drills performed in different environments have conflicting results regarding influences on assessments. Approach: To evaluate, within an ecological realsetting environment with unpredictable conditions reflective of game situations, a heading drill’s effect on the King-Devick (K-D) and Biodex Biosway Balance Assessment (CTSIB-M). Preseason and post-heading metrics were taken for eleven female high school varsity soccer players (16 ± 1.4 years old) using K-D and CTSIB-M. K-D and CTSIB-M tests were repeated following a heading drill (HD). The number of headers and acceleration data during HD was recorded by Triax Smart Impact Monitor-G (SIM-G). Results: Each participant had an average of six headers (± 2.9 SD) with acceleration (minimum to maximum 27.5 ± 3.4 g to 57.4 ± 9.9 g) recorded by Triax SIM-G. K-D score time (42.9 ± 6.8 se conds compared to 41.6 ± 4.9 seconds, p = 0.37) and CTSIB-M sway index (0.79 ± 0.13 compared to 0.83 ± 0.13 cm, p = 0.17) pre- and post-test scores lacked statistical significance. Conclusion: It failed to show a correlation with head acceleration data (e.g., linear and rotational accelerations). A single soccer heading drill may not affect performance on the K-D and CTSIB-M. Regularly monitoring different metrics (e.g., K-D or CTSIB-M) for teams who practice more aggressive heading drills may inform training such skills while identifying potentially detrimental effects from repetitive soccer heading impacts during a competitive season

Novice Inter-Rater Reliability on the Selective Functional Movement Assessment (SFMA) After a 4-Hour Training Session

# Background The Selective Functional Movement Assessment (SFMA) is a whole-body movement classification system that identifies non-optimal movement performance requiring further assessment. There needs to be more evidence specifying the training time required to obtain SFMA reliability for entry-level health care practitioners. # Purpose The primary intent of this study was to determine SFMA inter-rater reliability between two third-year physical therapy students following an in-person three-hour training and one-hour follow-up training with a certified SFMA physical therapist. The secondary purpose was to compare rater scores of the composite criterion 50-point checklist and rater categorization using the top-tier movements in real-time assessments of healthy participants. # Study Design Inter-rater reliability study. # Methods Two novice raters received training on assessing movement using the SFMA. Participants included non-pregnant healthy adults screened for general exercise, participants were excluded for history of orthopedic surgery within the prior six months. Three independent raters, including two novice and one SFMA-certified rater, individually assessed the top-tier movements in separate rooms in real-time. Participants were randomly assigned a start location, and raters were blinded to each other's criterion 50-point checklist and categorical scoring. Statistical analysis included a paired *t*-test, a repeated measures ANOVA, and a two-way, mixed absolute agreement ICC. # Results Twenty-five participants (23.4 years ± 1.9; 72% female) completed the SFMA top-tier movements. Significant differences were identified with novice raters identifying fewer non-optimal movement patterns than the certified clinician. The intraclass correlation coefficient (ICC~2,1~) was moderate (0.60, *p*\<0.001) for all three raters on the 50-point criterion checklist scoring. # Conclusion Third year physical therapy students were able to demonstrate moderate inter-rater reliability assessing healthy individuals using the 50-point criterion checklist. Variation between novice raters may reflect the amount of previous exposure assessing movement and suggests that some may require more time learning and practicing in order to identify non-optimal movement patterns that may require further assessment. # Level of Evidence 3b ©The Author(s

Feasibility Assessment of the Reebok CHECKLIGHT™ and King-Devick tests as Screening tools in Youth Football

Background: Concussions are one of the foremost issues in sport, with football having one of the highest incidence rate of injury. Moreover, there is a need to monitor sub-concussive head impacts because they do not initiate further assessment which may increase an athlete’s risk of suffering a brain injury. The purpose of this article is to discuss the viability of use for the Reebok CHECKLIGHT™ system and its correlation to concussive events screening in two levels of football: youth recreation league football (ages 11-13) and high school football (ages 13-18). Results: The Reebok CHECKLIGHT™ system activation did not correlate with the King-Devick score (r=-0.08, p=0.7). There was no difference between the two levels of football in the number of times the lights came on, 1.77 ± 2.05 vs. 1.42 ± 0.79, p=0.57.Limitation: The viability of CHECKLIGHT™ system was limited by threshold issues with the light alert system, light usefulness, set-up, and implementation. Conclusion: The Reebok CHECKLIGHT™ system may be beneficial to individual athletes below the high school level; however, it appears to have limited usefulness for entire teams and/or high school athletes

Feasibility Assessment of the Reebok CHECKLIGHT™ and King-Devick tests as Screening tools in Youth Football

Background: Concussions are one of the foremost issues in sport, with football having one of the highest incidence rate of injury. Moreover, there is a need to monitor sub-concussive head impacts because they do not initiate further assessment which may increase an athlete’s risk of suffering a brain injury. The purpose of this article is to discuss the viability of use for the Reebok CHECKLIGHT™ system and its correlation to concussive events screening in two levels of football: youth recreation league football (ages 11-13) and high school football (ages 13-18). Results: The Reebok CHECKLIGHT™ system activation did not correlate with the King-Devick score (r=-0.08, p=0.7). There was no difference between the two levels of football in the number of times the lights came on, 1.77 ± 2.05 vs. 1.42 ± 0.79, p=0.57.Limitation: The viability of CHECKLIGHT™ system was limited by threshold issues with the light alert system, light usefulness, set-up, and implementation. Conclusion: The Reebok CHECKLIGHT™ system may be beneficial to individual athletes below the high school level; however, it appears to have limited usefulness for entire teams and/or high school athletes

Anterior Talofibular Ligament and Superior Extensor Ankle Retinaculum Thicknesses: Relationship with Balance

Purpose This study determined if anterior talofibular ligament (ATFL)/superior extensor ankle retinaculum (SEAR) thicknesses are related to dynamic balance in individuals with chronic ankle instability (CAI). Materials and Methods The subjects were 14 males and 15 females (age=24.52±3.46 years). Ankle instability was assessed using the Cumberland Ankle Instability Tool (CAIT) with a cut off score of 25 to define two groups. SonoSite MTurbo (Fugifilm Sonosite, Inc.) musculoskeletal ultrasound (MSKUS) unit was used to assess ATFL and SEAR thicknesses. Dynamic balance was measured with the Y Balance Test (YBT) and two NeuroCom balance tests. Results There were no significant differences in the average ATFL thickness between stable and unstable ankles in those subjects with CAI (0.25±0.03 cm and 0.21±0.05 cm, respectively) or in the SEAR thickness (0.09±0.04 cm and 0.10±0.03 cm, respectively). There were also no significant differences in the right and left ATFL thicknesses (0.23±0.07 cm and 0.21±0.04 cm, respectively) or the SEAR thicknesses (0.09±0.01 cm and 0.09±0.01 cm, respectively) in those without CAI. There were no differences between limbs in composite scores on YBT in those with CAI (p=0.35) and those without CAI (p=0.33). There was a moderate correlation between the left SEAR thickness and the large forward/backward perturbations on the NeuroCom (Natus) motor control test (r=0.51, p=0.006 and r=0.54, p=0.003, respectively). Conclusion There were no differences in the ATFL/SEAR thicknesses or balance measures between or within the groups, likely because CAI is multi-factorial and related to mechanisms other than tissue changes alone. More sensitive technology and a better definition of the measurement process may provide more definitive results

Exercise tolerance during flat over-ground intermittent running: modelling the expenditure and reconstitution kinetics of work done above critical power

Purpose We compared a new locomotor-specific model to track the expenditure and reconstitution of work done above critical power (W´) and balance of W´ (W´BAL) by modelling flat over-ground power during exhaustive intermittent running. Method Nine male participants completed a ramp test, 3-min all-out test and the 30–15 intermittent fitness test (30–15 IFT), and performed a severe-intensity constant work-rate trial (SCWR) at the maximum oxygen uptake velocity (vV̇O2max). Four intermittent trials followed: 60-s at vV̇O2max + 50% Δ1 (Δ1 = vV̇O2max − critical velocity [VCrit]) interspersed by 30-s in light (SL; 40% vV̇O2max), moderate (SM; 90% gas-exchange threshold velocity [VGET]), heavy (SH; VGET + 50% Δ2 [Δ2 = VCrit − VGET]), or severe (SS; vV̇O2max − 50% Δ1) domains. Data from Global Positioning Systems were derived to model over-ground power. The difference between critical and recovery power (DCP), time constant for reconstitution of W´ (τW′), time to limit of tolerance (TLIM), and W´BAL from the integral (W´BALint), differential (W´BALdiff), and locomotor-specific (OG-W´BAL) methods were compared.Results The relationship between τW′ and DCP was exponential (r2 = 0.52). The τW′ for SL, SM, and SH trials were 119 ± 32-s, 190 ± 45-s, and 336 ± 77-s, respectively. Actual TLIM in the 30–15 IFT (968 ± 117-s) compared closely to TLIM predicted by OG-W´BAL (929 ± 94-s, P &gt; 0.100) and 0.100) and W´BALdiff (938 ± 84-s, P &gt; 0.100) but not to 0.100) but not to W´BALint (848 ± 91-s, P = 0.001). Conclusion The OG-W´BAL accurately tracked W´ kinetics during intermittent running to exhaustion on flat surfaces

Small non-coding RNAs are altered by short-term sprint interval training in men

Small non-coding RNAs (ncRNAs) are emerging as important molecules for normal biological processes and are deregulated in disease. Exercise training is a powerful therapeutic strategy that prevents cardiometabolic disease and improves cardiorespiratory fitness and performance. Despite the known systemic health benefits of exercise training, the underlying molecular mechanisms are incompletely understood. Recent evidence suggests a role for epigenetic mechanisms, such as microRNAs, but whether other small ncRNAs are modulated by chronic exercise training is unknown. Here, we used small RNA sequencing to explore whether sprint interval training (SIT) controls the abundance of circulating small ncRNAs in human whole blood samples. Ten healthy men performed SIT three times a week for 6 weeks. After training, subjects showed marked improvements in maximal oxygen consumption and cycling performance with concurrent changes to the abundance of diverse species of circulating small ncRNAs (n = 1266 small ncRNAs, n = 13 microRNAs, q n = 24, all P &gt; 0.05). Relative to older individuals, younger subjects exhibited an increased acute SIT-induced fold change in miR-1301-3p ( 0.05). Relative to older individuals, younger subjects exhibited an increased acute SIT-induced fold change in miR-1301-3p (P = 0.02) – a microRNA predicted to target mRNAs involved in alternative splicing, phosphoprotein and chromosomal rearrangement processes (all

Phosphine Oxide Derivative as a Passivating Agent to Enhance the Performance of Perovskite Solar Cells

Defects of metal-halide perovskites detrimentally influence the optoelectronic properties of the thin film and, ultimately, the photovoltaic performance of perovskite solar cells (PSCs). Especially, defect-mediated nonradiative recombination that occurs at the perovskite interface significantly limits the power conversion efficiency (PCE) of PSCs. In this regard, interfacial engineering or surface treatment of perovskites has become a viable strategy for reducing the density of surface defects, thereby improving the PCE of PSCs. Here, an organic molecule, tris(5-((tetrahydro-2H-pyran-2-yl)oxy)pentyl)phosphine oxide (THPPO), is synthesized and introduced as a defect passivation agent in PSCs. The P=O terminal group of THPPO, a Lewis base, can passivate perovskite surface defects such as undercoordinated Pb2+. Consequently, improvement of PCEs from 19.87 to 20.70% and from 5.84 to 13.31% are achieved in n−i−p PSCs and hole-transporting layer (HTL)-free PSCs, respectively