Browsing by Author "Lynch, James M."
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- ItemAquaJogging the brain: An early intervention in concussion management?(Current Research: Concussion, 2015) Lynch, James M.Mild traumatic brain injury has been shown to result in decreased cerebral blood flow. Water-based exercise has recently been shown to increase cerebral blood flow when compared to land-based exercise. It seems reasonable that the initial introduction of water-based exercise may improve the recovery and return to activity of patients who have sustained a concussion.
- ItemAvulsion Fractures Involving the Cruciate Ligaments(American Academy of General Practice, 1988-08) Lynch, James M.; Whiteside, James A.; Andrews, James R.The evaluation of a child with an acute knee injury is difficult. The injury may be an avulsion fracture involving either of the cruciate ligaments; a common cause is a cycling accident. The amount of fragment displacement dictates the management. Minimal displacement can be treated with immobilization in flexion. Larger displacement requires internal fixation, which can be accomplished arthroscopically. Rehabilitation must be early and aggressive.
- ItemBumbled vibration: 144 HZ vibration does not enhance shoulder control(International Olympic Committee World Conference on Prevention of Injury & Illness in Sport, 2021-11) Winton, Amber (Florida Southern College Student); Andriani, Nicholas (Florida Southern College Student); Marshall, Erica M. (Florida Southern College Student); Lynch, James M.Stability of the upper extremity is critical for injury prevention. Vibration may improve proprioception, reducing injury risk. However, traditional vibration methods may be expensive and require a significant level of skill by the technician. Our purpose was to investigate whether an acute bout of shoulder exercise performed with an inexpensive, user-friendly vibration toy ball (BumbleBall, Cardinal Laboratories) improves shoulder position sense and joint control. Design Participants completed an acute bout of shoulder exercise with and without vibration on separate visits.
- ItemEffect of Acid-Base Balance on the Growth Hormone Response to Acute High-Intensity Cycle Exercise(American Physiological Society, 1994-02) Gordon, Scott E.; Kraemer, William J.; Vos, Netty H.; Lynch, James M.; Knuttgen, Howard G.To investigate the effect of acid-base balance on serum human growth hormone (hGH) concentration after an acute high-intensity anaerobic exercise bout, 10 untrained but normally active men [age, 24.6 +/- 1.5 (SE) yr] participated in a randomized double-blind counterbalanced experiment. Each subject reported in a fasted state at the same time of day for two experimental sessions separated by 1 wk. For each session, subjects were administered a decaffeinated tea solution containing either 0.3 g NaHCO3/kg body wt [alkalosis (ALK)] or 0.04 g NaCl/kg body wt [control (CTRL)] over a 45-min ingestion period. Venous blood samples were obtained before [baseline (BL)] and 75 min after the ingestion period, as well as postexercise at 0, 5, 10, 15, 20, and 30 min. The exercise task immediately followed the preexercise blood draw and consisted of 90 s of maximal-effort cycle ergometry against an opposing force of 0.49 N (0.05 kg)/kg body wt. There were no differences between the ALK and CTRL conditions in mean or peak power output or total work during the exercise task. Whole blood pH was significantly (P < or = 0.05) elevated in ALK above CTRL at all time points except BL. Postexercise serum hGH concentration significantly increased above BL at 10, 15, 20, and 30 min in CTRL and at 20 and 30 min in ALK. The hGH concentration was significantly lower in ALK than in CTRL at 15, 20, and 30 min postexercise. These data indicate that an increase in blood hydrogen ion concentration may be partly responsible for the hGH response to acute high-intensity anaerobic exercise.
- ItemExploring Nonoperative Exercise Interventions for Individuals with Femoroacetabular Impingement(American College of Sports Medicine, 2019-01) Terrell, Sara Lynn; Lynch, James M.APPLY IT!Femoroacetabular impingement (FAI) is characterized by pathologic contact during hip range of motion, with aggravating movements most noted in hip flexion, adduction, and internal rotation. Hip impingement diagnoses and surgeries are becoming an increasingly prevalent concern with todayʼs athletes and general population. Exploration of nonoperative exercise interventions is warranted. Exercise professionals can safely improve postural alignment, core stabilization, gluteal activation, and range of motion in individuals with FAI.Morphological correction and prevention of hip osteoarthritis are often primary reasons to support arthroscopy for individuals with femoroacetabular impingement (FAI). However, exploration of nonsurgical approaches such as exercise intervention focused on postural alignment, core stabilization, and gluteal activation may improve motor control and hip stabilization strength and provide a nonoperative alternative to surgery.
- ItemFemoroacetabular Impingement: Why Movement Literacy Matters.(Lippincott Williams & Wilkins, 2019-12) Terrell, Sara Lynn; Lynch, James M.Femoroacetabular impingement (FAI) is characterized by pathologic contact during hip range of motion. Morphological variations of FAI present as either an acetabular overcoverage (PINCERFAI), spherical femoral deformity (CAM FAI), or both. Such morphological changes often elicit discomfort with aggravating movements most noted in hip flexion, adduction, and internal rotation (FADIR). Etiology of the CAM deformity may be linked to force loads experienced during formative bone growth periods in youth and adolescent athletes. Continued exploration of CAM FAI etiology may provide evidence for strength and conditioning professionals to carefully consider exercise training selection to promote movement literacy in youth populations. ABSTRACT FROM AUTHOR
- ItemAn In-Depth Sports Medicine Profile of Women College Tennis Players(Journal of Sport Rehabilitation, 1995) Kraemer, William J.; Triplett, N. Travis; Fry, Andrew C.; Koziris, L. Perry; Bauer, Jeffrey E.; Lynch, James M.; McConnell, Tim; Newton, Robert U.; Gordon, Scott E.; Nelson, Richard C.; Knuttgen, Howard G.Provides an in-depth sports medicine profile of women college tennis players and determines the relationship among an array of performance and clinical variables. Comprehensive battery of test on 38 non-restrained women.
- ItemReliability of a Novel iPhone App on Testing Proprioception of the Lower Extremities(Florida Southern College, 2021-05) Andriani, Nicholas; Lynch, James M.The term “proprioception” has been used to describe a variety of different mechanisms and systems related to motor control and the sensorimotor system. Stability is an important outcome of proprioception and can be measured through a variety of balance tests. Through measuring stability, an individual’s relative proprioception can be determined. One common balance test is the Balance Error Scoring System (BESS). There are few studies that involve the use of a cellular device, such as an iPhone, to test balance and stability. iPhones are versatile machines with components capable of measuring changes in movement. We aim to create an application that is easy to use, readily accessible, and affordable for users. This project investigated the reliability of a student-designed iPhone app to measure balance on the mildly unstable platform of a rehabilitation device. Results suggest that these methods were a successful pilot study for the internal reliability of the app. Further studies should aim to increase the statistical power and significance of these methods.
- ItemTesting the Validity of the InjurySway App and Vibration’s Effect on Shoulder Control(Florida Southern College, 2021-05) Winton, Amber; Lynch, James M.; Marshall, Erica M.Upper extremity stability is critical for injury prevention. Vibration may improve proprioception, reducing injury risk. Mobile applications are accessible reliable tools to measure recovery in athletes. One research purpose investigated whether the InjurySway iPhone app is a valid measure of upper extremity proprioception. The other was whether an acute bout of shoulder exercise performed with an inexpensive vibration toy improves shoulder position sense. Each session, the subject held the phone on the palm, arm forward for 20 seconds both arms. Each subject then completed a Full Can exercise set with the randomly assigned Bumble Ball state (vibration/no vibration) and repeated the app stability measure. Subjects completed a session with the Closed Kinetic Chain Upper Extremity Stability Test (CKCUEST). Subjects assumed a pushup position and alternated touching two pieces of tape, 36 inches apart for 15 seconds. Thirty subjects (age 18-22) completed three trials. There was no correlation between path lengths of the conditions and CKCUEST touches. There was a significant decrease in sway over time for both conditions, but no significant difference between the two. Therefore, the Full Can exercise bout decreased sway, but vibration did not contribute to a significant difference. The InjurySway app is not a valid proprioception measure.
- ItemTherapeutic Exercise Approaches to Nonoperative and Postoperative Management of Femoroacetabular Impingement Syndrome.(Allen Press Publishing Services Inc., 2021-01) Terrell, Sara Lynn; Olson, Gayle E.; Lynch, James M.Femoroacetabular impingement syndrome (FAIS) is characterized by premature contact of the femur and acetabulum during hip motion. Morphologic variations of FAIS present as either aspherical femoral deformity (cam femoroacetabular impingement) or overcoverage (pincer femoroacetabular impingement) or both. Patients with FAIS often describe discomfort with hip flexion, adduction, and internal rotation. The use of hip arthroscopy to treat FAIS has risen substantially over the last 15 years. Given that one practice domain of the athletic training profession involves injury prevention and wellness protection, optimal FAIS treatment and management strategies warrant discussion. Sports medicine professionals often help patients with FAIS explore nonoperative exercise strategies and direct rehabilitation exercises for those who pursue surgery. Both approaches demonstrate key pillars of exercise program design, which include postural control, core stabilization, hip strength and motor control, and mobility. The purpose of this article is 2-fold: to present an overview of FAIS, including common diagnostic strategies, and commonalities in therapeutic approaches between nonoperative and postoperative rehabilitation for the treatment and management of patients with FAIS. ABSTRACT FROM AUTHOR
- ItemThere’s an App for That: Reliability of an iPhone App to Assess Upper Extremity Proprioception and Stability(International Olympic Committee World Conference on Injury and Illness Prevention, 2017-03) Lynch, James M.; Smith, Keeley; Patel, Vrund; Luchan, KaylaBackground: The ability to maintain joint stability and motion control of the extremities is important in injury prevention/recovery. Quantitative measurement of proprioception, especially the upper extremity, is difficult. Objective: We investigated the reliability of a custom iPhone app to compile accelerometer data and calculate a path length of movement over 20 seconds. Design: This study used a prospective test-retest design. Subjects completed three trials on each upper extremity (RA and LA) 48 hours apart (MWF). A convenience sample of subjects was used. Results: The mean path length for RA was 2669 with a standard error of 149, with LA being 2774 and 124. The intraclass correlation coefficient was 0.86 for the right arm and 0.74 for the left arm across three trials. Conclusions: The accelerometer in an iPhone 6 is a moderately reliable instrument for assessing motion control stability in the upper extremity. We plan to add additional data filtering to the app and repeat.
- ItemTraining Load Monitoring and Improved Movement Literacy-Overlooked Strategies for Femoroacetabular Impingement Syndrome Injury Incidence in Youth Athletes(American College of Sports Medicine, 2021) Terrell, Sara Lynn; Lynch, James M.