Browsing by Author "Garcia-Hosokawa, Marcel"

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    Comparison of Chiropractic Manipulation and Functional Movement-Based Myofascial Release in Shoulder Range of Motion of Collegiate Athletes
    (Indiana Medical Student Program for Research and Scholarship Research Symposium, 2022) Heumann, Ryan; Waltz, Matthew; Garcia-Hosokawa, Marcel; Chlebowski, Arthur
    Background: Shoulder pain is the third most common presentation of musculoskeletal pain in the clinic with a lifetime prevalence of up to 70%. In athletes, shoulder dysfunction is often due to the extreme forces experienced by the joint during sport participation. Studies have shown that a deficit of 5 degrees in total arc of motion, 20 degrees in internal rotation, and 15 degrees in horizontal adduction can increase an athlete’s chances of injury by a factor of four. Methods: Student athletes with shoulder pain and decreased range of motion (ROM) in their dominant arm were separated into cohorts and received twelve therapy sessions. One cohort received chiropractic manipulation (CM) and the other received functional movement-based myofascial release (FMMR) with CM. ROM of the shoulder was measured during the first, sixth, and last sessions using goniometry and video capture. Cohorts were compared using statistical analyses on data collected. Results: A total of four participants have completed at least the first six sessions of participation in study. Initial results show there is no statistical difference in improvement in shoulder ROM between cohorts. Student T-tests comparing cohorts’ improvements in six of the seven specific ROM tests resulted in no statistical significance (p-values ≤ 0.05). The two participants that completed all twelve intended therapy sessions showed evidence of positive trajectory for increased ROM and qualitatively expressed improvement in shoulder motion. Conclusion: This study shows that there was no statistically significant difference in treating athletes with CM versus FMMR combined with CM. This can mainly be attributed to the study’s current size (n=4). Even with the small participant size, and lack of statistical significance several trends of the individual range of motion measurements provide questions that would benefit from the continuation of the study towards the full cohort participation.
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    Comparison of Goniometry and Video Analysis in Measuring Shoulder Range of Motion in Collegiate Athletes
    (Indiana Medical Student Program for Research and Scholarship Research Symposium, 2022) Waltz, Matt; Heumann, Ryan; Garcia-Hosokawa, Marcel; Chlebowski, Arthur
    Background: The shoulder joint’s multiplanar motion creates a challenge in measurement of range of motion (ROM). Goniometry is currently the most common tool for measuring ROM in the clinic due to its ease of use, but is subjective in nature. Video capture rigs have become popular in all facets of motion monitoring, but they can be limited to large open spaces and user discrepancy. Further, motion capture with wireless wearable inertial measurement units (IMUs) has also become popular but is often cost/implementation prohibitive. Understanding the consistency between these recording methods must be established to understand if a therapy impacts the shoulder complex. Methods: Student athletes with complaints of shoulder pain and decreased ROM in their dominant arm were separated into cohorts receiving twelve therapy sessions. One cohort received chiropractic manipulation therapy and the other received functional movement-based myofascial release therapy combined with chiropractic manipulation. Shoulder ROM was measured via seven standard tests during the first, sixth, and last sessions using goniometry, video capture, and IMUs. Following data collection, results of the measurement techniques were compared. Results: Preliminary statistical analysis conducted between goniometry and video capture indicates measurement techniques differ for three of seven standard ROM tests, pronated flexion, supinated abduction, and internal rotation (p-value ≤ 0.05). Reliability between individuals analyzing video capture is strong, with an ICC of 0.994. This indicates consistency between individuals taking measurement of shoulder ROM using this method. IMU data has been collected with analysis forthcoming. Conclusion: This study is limited by the number of participants (n=4). Preliminary results indicate that consistency in video analysis may make it preferable to standard goniometry. A larger, more comprehensive study is needed to provide conclusive results, including IMU data. These conclusive results could indicate that clinical use of video capture or IMUs should replace standard goniometry if other implementation hurdles can be reduced.
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    Effects of Functional Movement-Based Myofascial Release Therapy on Shoulder Range of Motion in a Collegiate Pitcher: A Case Report
    (Indiana University School of Medicine, 2025-01-26) Heumann, Ryan; Waltz, Matt; Garcia-Hosokawa, Marcel; Chlebowski, Arthur
    Strong, repetitive forces sustained by the shoulder joint during overhead throwing sports can cause alterations in range of motion (ROM) of the joint itself. This change can lead to risk of injury. Currently, there are a number of established therapies to increase ROM and decrease injury risk. This case report covers the use of a form of myofascial release therapy (MRT), and its effect on throwing shoulder ROM and pain in a collegiate baseball player. After twelve sessions of therapy, external rotation increased by 20.64°(16.97%) and internal rotation increased by 19.60°(65.88%). This total increase in ROM provides evidence for a less commonly used therapeutic technique and its possible effect on decreasing risk of injury in overhead throwing athletes.
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    Effects of Functional Movement-Based Myofascial Release Therapy on Shoulder Range of Motion in a Collegiate Pitcher: A Case Report
    (2025-04-25) Heumann, Ryan; Waltz, Matt; Garcia-Hosokawa, Marcel; Chlebowski, Arthur
    Strong, repetitive forces sustained by the shoulder joint during overhead throwing sports can cause alterations in range of motion (ROM) of the joint itself, which can lead to risk of injury. Currently, there are several established therapies to increase ROM and decrease injury risk. This case report investigates the use of combinational functional myofascial release and chiropractic therapies, and its effect on throwing shoulder ROM and pain in a collegiate baseball player. After twelve sessions of therapy, external rotation increased by 20.64° (16.98%) and internal rotation increased by 18.51° (61.30%). This increase in ROM provides evidence for a less common therapeutic technique and its possible effect on decreasing risk of injury in overhead throwing athletes.