Objective: The purpose of this study was to evaluate pre- and postseason measures of body composition, skeletal muscle, and blood parameters/liver lipid in wildland firefighters (WLFF) over the fire season.
Methods: Alaskan WLFF (N = 27) crews were evaluated pre- and postwildfire season, which included 63 ± 10 operational days. Body composition, thigh muscle area, and liver lipid were quantified using dual-energy radiograph absorptiometry and magnetic resonance imaging, respectively. Blood metabolic and lipid panels were also collected and analyzed.
Results: Total body, fat, and visceral fat mass increased from pre- to postseason (P < 0.05). Total cholesterol, LDL, and total globulin also increased (P < 0.05). There was a trend (P = 0.06) towards an increase in intrahepatic lipid.
Conclusions: The observed maladaptive changes in adipose tissue, blood lipids, and hepatic function may reflect adaptations/consequences to occupational demands/conditions and warrant evaluation of appropriate countermeasures.
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http://dx.doi.org/10.1097/JOM.0000000000001535 | DOI Listing |
Sports (Basel)
December 2024
Department of Kinesiology and Applied Physiology, University of Delaware, Newark, DE 19716, USA.
Purposeful heading, in which players may use their heads to advance the ball in play, is a unique part of soccer. Clinical outcome measures used to aid in the diagnosis of a concussion have long been a cornerstone of the contemporary measurements associated with the short- and long-term effects of monitoring repetitive head impacts (RHI) and soccer heading exposure. The effects of RHI in the youth population are still unknown, therefore, the purpose of this study was to examine if heading exposure is predictive of changes in self-reported symptoms, neurocognitive functioning, gait, and balance in female youth soccer players over the course of one soccer season.
View Article and Find Full Text PDFBrain Inj
December 2024
Discipline of Physiotherapy, School of Medicine, Trinity College Dublin, University of Dublin, Dublin, lreland.
Phys Ther Sport
November 2024
Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil. Electronic address:
Objectives: To evaluate upper limb performance, trunk extensor endurance, and serratus anterior strength in para swimmers over a sports season.
Design: A cohort study conducted over eleven months.
Settings: Three assessments were performed at pre-season, mid-season, and post-season, evaluating the CKCUEST, Sorensen Test, and isometric strength of the serratus anterior.
medRxiv
November 2024
Radiology Informatics and Image Processing Laboratory, Wake Forest School of Medicine, Winston-Salem, North Carolina.
Background: American tackle football is associated with high rates of concussion, leading to neurophysiological disturbances and debilitating clinical symptoms. Previous investigations of the neurophysiological effects of concussion have largely ignored aperiodic neurophysiological activity, which is a marker of cortical excitability.
Purpose: We examined whether concussion during a season of high school football is related to changes in aperiodic and periodic neurophysiological activity and whether any such changes are associated with clinical outcomes.
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