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Correlation Between Shoulder Kinematics and Functional Outcomes After Reverse Total Shoulder Arthroplasty
Get PDFPurpose/Hypothesis:
Reverse total shoulder arthroplasty (RTSA) has become an efficacious surgical procedure for people with massive rotator cuff tears and concurrent glenohumeral osteoarthritis. While shoulder biomechanics and functional outcomes after a RTSA have been studied extensively, there is limited research on the relationship between shoulder girdle osteokinematics and functional outcomes. The purpose of this study was to investigate the correlation between shoulder girdle osteokinematics and functional outcomes, using the Penn Shoulder Score (PSS), in patients who underwent RTSA. It is hypothesized that there would be a significant correlation between osteokinematic variables and the PSS. Participants: 20 participants (10 male) who underwent RTSA between 2020 and 2023. The mean time elapsed between surgery and data collection was 23.17 (12-50) months. The average age of participants was 75.8 (63-89) years and all lived within a 45-minute drive of the university campus.
Materials and Methods:
IRB approval was obtained through both the university and the healthcare system at which participants underwent surgery. The Polhemus G4 three-dimensional electromagnetic motion capture system was used for collecting osteokinematic data for scapular external rotation, posterior tilt, and upward rotation during three repetitions of humeral elevation in each of three planes: abduction, flexion, and 45 degrees anterior to the frontal plane to approximate the plane of the scapula. SPSS was utilized to assess correlations between the PSS and all osteokinematic variables using a Pearson product-moment correlation.
Results:
No violations of normality were observed for any of the variables. There was a moderate positive correlation between the PSS and humeral abduction (r = 0.479, p = 0.032) and between the PSS and scapular upward rotation (r = 0.446, p = 0.049). The median score on the PSS was 86.8 (IQR = 22.3). Mean humeral abduction was 80.28 + 20.72 and mean of scapular upward rotation was 36.71 + 14.74. No other variables demonstrated correlations.
Conclusion:
The data analyzed from our study showed glenohumeral abduction and scapular upward rotation are positively correlated to long-term functional outcomes as measured with PSS, following a reverse total shoulder arthroplasty.
Clinical Relevance:
While flexion and scaption are considered more functional planes of motion, this study showed a positive correlation between abduction and PSS. This finding may inform a continued focus on humeral abduction ROM for optimal functional gains during the post-op rehabilitation of RTSA. The significant correlation between scapular upward rotation and PSS reinforces the appropriateness of addressing short-term scapular and glenohumeral mechanics during post-op RTSA physical therapy. These findings may contribute to more standardized RTSA protocols which have been highly variable up to this date
The Effects of Post Activation Potentiation Using Accommodating Resistance
Get PDFPost activation potentiation is the short increase of power output following a heavy exercise. This effect could be due to several mechanisms, the most popular are increased sensitivity of actin and myosin to calcium or alpha motoneuron reactivity. The idea behind using the accommodating resistance is that eccentrics get lighter throughout the movement to avoid sticking points whilst changing the strength curve of the exercise. This may cause a greater stretch reflex and create more force from the weakest position of the movement because of the eccentrics being quicker also known as. Using accommodating resistance may also be less fatiguing than using free weights because of the lightened loads at the most difficult positions of the movement which can affect acute performance. More simply if we can move faster, we can generate more force, which will then translate into more neurological stimulus for PAP. Comparing two different PAP protocols of similar loads using free weights or a combination of accommodating resistance (band tension) and free weights can give practical application that one protocol may yield a greater PAP effect. The participants used in this study were all recreational and competitive powerlifters capable of squatting at least 1.5 times bodyweight. They each performed barbell back squats to a box as well as performed seated broad jumps to measure potentiation within three separate visits each measuring baseline, with accommodating resistance and with straight free weights. The results of the study suggest that there is a great amount of variability between participants in terms of how much they potentiate based on load type and that the type of load used for PAP protocols should be based off of individual preference rather than broad protocols
Retaining Coaches
No full textThe research investigated the alarming number of schools and districts that struggle to retain coaches. Retaining coaches is a vital part of an athletic program. The athletic director\u27s job is to hire and retain good coaches, but this has fallen short for various reasons. Small and large schools were analyzed from a needs perspective and what they offer coaches to help retain them. The research looked at the alarming rates of coaches not being retained and ways to help combat this, especially from an administration support standpoint. Two key components discussed were the pay for coaches and the hiring process, which can head off any issues with losing coaches. A survey study was to be analyzed to see similarities among coaches who left a program. The problem of coaches leaving is real, but the practical ideas and studies are a resource for correcting this problem
The incidence and causes of burnout in small school high school athletics
No full textAbstract
This paper explored the incidence and underlying causes of burnout among small school high school athletics participants. Burnout, a pervasive issue in athletics, could detrimentally impact athletes\u27 physical, mental, and emotional well-being and performance. Through a comprehensive literature review, this study investigated the unique challenges faced by athletes in small school settings, where resources and support systems may have been limited compared to larger institutions. Factors contributing to burnout, including excessive demands, pressure to perform, lack of recognition, inadequate support structures, and conflicting academic commitments, were examined in detail. Additionally, the role of coaches, parents, and peers in either exacerbating or mitigating burnout was analyzed. Utilizing scientific data and case studies, this paper sought to offer perspectives on efficient prevention and intervention tactics for the setting of small school high school athletics. By addressing the root causes of burnout and creating a supportive and nurturing environment, small schools can promote their student athletes’ well-being and long-term success.
Keywords: burnout, athletes, excessive demand, student-athlet
Collegiate Student-Athlete Mental Health and How it is Supported
No full textThis proposal covered a possible study of how student-athletes at the college level viewed and handled their mental health. The study aimed to examine the supports offered to and used by the athletes on their campuses. If this study had been conducted, it could have provided information that might have led to the addition of positive supports in programs and on campuses, as well as steps toward ending the stigma around mental health. It explored possible methods for conducting the research, who to involve, and who could benefit from it. Past studies that were closely related had mainly focused on Division I athletes, so this study was intended to broaden the scope by surveying athletes from Division I, II, and III. This approach could have helped gain a better understanding of where programs were lacking support and whether those shortcomings were common trends across different levels of NCAA athletics nationwide
Effects of FASD on an Individual’s Life Trajectory
Get PDFThe consumption of alcohol has been in society for thousands of years. However, the discovery of the impacts of alcohol consumption while pregnant is something that is continuously being learned about. Controversy on the effects of alcohol while pregnant and the level of consumption throughout the last century alone has caused individuals to misunderstand the level of danger that it has on a child. Fetal Alcohol Spectrum Disorder is a multi-layer disorder that causes not only physical deformities but also a change in mental health and cognitive levels of an individual. Throughout any stage of pregnancy a consumption of alcohol can have major impacts on the trajectory of an individual\u27s life from both a childhood and into adulthood. Mothers may struggle to admit to the use of alcohol due to the fear of being stigmatized as well. Many risks are included within an individual who has FASD, from a lack of education, higher risk in independent living, little to no family support, to the increased risk of arrest or criminal justice interaction. The awareness of the dangers of alcohol while pregnant or expecting to become pregnant not only needs to be increased in study but also the awareness of the support for individuals with FASD must be increased if we as a society are to help these individuals progress in a positive fashion through their life
Summer 2025 Dean’s List
Get PDFTo be recognized on Concordia St. Paul University\u27s Dean\u27s list, full-time undergraduate students must achieve a GPA of 3.6 or higher in a given academic semester. A full-time undergraduate student must be registered for 12 or more credits
Demographic and Biomechanical Factors Associated with Knee Excursion Angles Outside the Accepted Range
No full textThe knee is one of the most frequently injured musculoskeletal systems among long-distance runners, and these injuries may be explained by biomechanical inefficiencies and imbalances between the quadriceps and hamstrings. Common knee injuries in runners include patellofemoral pain syndrome, iliotibial band syndrome, and meniscal irritation. These injuries have the potential to interfere with training, reduce the number of races runners partake in, and affect performance in the long-term. The aim of this study was to investigate the relationship between quadriceps and hamstring strength and biomechanics of the knee involving long-distance runners experiencing knee pain or discomfort. Specifically, two-dimensional (2D) gait analysis was employed to determine knee range of motion at initial contact and midstance to calculate the knee excursion range of motion, while concentric isokinetic strength testing on a HUMAC NORM system measured quadriceps and hamstring peak torque, time to peak torque, and side-to-side asymmetry. Descriptive and inferential statistics were used to analyze the data in terms of a multiple regression with bootstrapping procedures, and variance inflation factor checks used to analyze the data regarding multicollinearity. This research provides information on the associations between knee pain and/or discomfort, strength, and biomechanical variables in long-distance running. These findings may inform injury prevention and rehabilitation strategies, and individual strength training and gait retraining programs can be developed based on these results in endurance athletes
Episode 76: Jerrod Brown & Jeremiah Schimp: An integral connection between the body and the mind
No full textThe Sword, November 2025
No full textContents
News: Using AI in interviews: the good, the bad, the ugly Save the date: Somali Museum\u27s 12th anniversary promises a \u27tale\u27 of a \u27starry night\u27 The Need for Less Speed: Traffic Cameras Installed In Minneapolis The Culture Fair is coming in November
Opinion: Barney B vs. Cocaine Barbie Heavy Is the Head That Bears the Horns The Attention Crisis
Arts & Variety: The Smalcald Feather-Bowling League Gets Rolling What\u27s in your bag? CSP edition What\u27s the Single of Your Personal Soundtrack? Monkey Man (2024): Movie Review The Life Of A Showgirl Does She Sparkle, Or Fall Flat On Her Face? CSP Hosts Ordination of Dr. Davis
Sports: Napheesa Collier VS. Cathy Engelbert Viva Italia! Italy\u27s Men\u27s Volleyball Championship win breaks engagement records Formula 1, 2025 Season: Decided, or Down to the Wire