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Study hypothesizes that weight cutting leads to increased brain volume reduction
03-27-2021, 12:33 AM
Post: #1
Study hypothesizes that weight cutting leads to increased brain volume reduction
Study hypothesizes that weight cutting leads to increased brain volume reduction

Although the exact mechanisms are unclear, the present findings are consistent with this hypothesis and highlight the need for future research into the influence of weight-cutting on the long-term brain health of professional fighters. It should also be considered that heavyweights may have more comorbidities (i.e. diabetes, metabolic syndrome, etc.) potentially exacerbating neurodegenerative processes through pro-inflammatory pathways. This might contribute to greater yearly decrements in heavyweights despite the greater volume of strikes absorbed by lightweights on a per-fight basis and the possible exacerbations from effects of weight-cutting. Future work is required to elucidate these complex relationships

The full abstract reads as follows:

Traumatic brain injury (TBI) is a common source of functional impairment among athletes, military personnel, and the general population. Professional fighters in both boxing and mixed martial arts (MMA) are at particular risk for repetitive TBI and may provide valuable insight into both the pathophysiology of TBI and its consequences. Currently, effects of fighter weight class on brain volumetrics (regional and total) and functional outcomes are unknown. Fifty-three boxers and 103 MMA fighters participating in the Professional Fighters Brain Health Study (PRBHS) underwent volumetric magnetic resonance imaging (MRI) and neuropsychological testing. Fighters were divided into lightweight (£139.9 lb), middleweight (140.0–178.5 lb), andheavyweight (>178.5 lb). Compared with lightweight fighters, heavyweights displayed greater yearly reductions in regional brain volume (boxers: bilateral thalami; MMA:leftthalamus, right putamen) and functional performance (boxers: processing speed, simple and choice reaction; MMA:TrailsA and B tests). Lightweights suffered greater reductions in regional brain volume on a per-fight basis(boxers: left thalamus;MMA:rightputamen).Heavyweight fightersbore greater yearly burden of regional brain volume and functional decrements, possibly related to differing fight dynamics and force of strikes in this division. Lightweights demonstrated greater volumetric decrements on a per-fight basis. Although more research is needed, greater per-fight decrements in lightweights may be related to practices of weightcutting, which may increase vulnerability to neurodegeneration post-TBI. Observed decrements associated with weight class may result in progressive impairments in fighter performance, suggesting interventions mitigating the burden of TBI in professional fighters may both improve brain health and increase professional longevity

https://www.mixedmartialarts.com/news/st...reduction/

Those who know, know! Big Grin
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03-27-2021, 12:34 AM
Post: #2
RE: Study hypothesizes that weight cutting leads to increased brain volume reduction
one more reason to institute same day weigh ins

those who fail can still fight but are massively penalized. they lose a point every round, so they basically have to finish or lose the fight.
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