アルティメット・ファイティング・チャンピオンシップのアスリートによる2回のノックアウト連敗の予測
Avi N Albert1,2,3, Jai Horsey1,2,3, Clayton R Baker1,2
1Vanderbilt Sports Concussion Center, Department of Neurological Surgery, Vanderbilt University Medical Center, Nashville, TN , USA.
The Physician and sportsmedicine
|February 12, 2026
まとめ
高齢,男性,重量級,ノックアウト歴は,UFCファイターでノックアウトで連敗を予測している. 以前のノックアウト歴は唯一の独立した予測因子であり,脆弱なアスリートを特定するのに役立ちます.
科学分野:
- スポーツ医学 スポーツ医学
- 戦闘スポーツの分析
- 怪我の疫学 怪我の疫学とは
背景:
- 連続ノックアウト (KO) やテクニカル・ノックアウト (TKO) の敗戦は,プロファイティングにおいて大きな懸念となっている.
- 繰り返しKO/TKOの損失に伴うリスク要因を理解することは,戦闘員の安全とキャリア管理にとって極めて重要です.
研究 の 目的:
- アルティメット・ファイティング・チャンピオンシップ (UFC) の選手が2回連続でKO/TKOで敗北した際の人口統計と戦闘特有の詳細を特徴付ける.
- 連続した2回のKO/TKO損失の持続と関連した予測要因を特定する.
主な方法:
- 遡及的なコホート研究では,2015年から2023年にかけてのUFCファイター記録を分析した.
- 戦闘機は,連続して1回または2回KO/TKOの敗北を経験した上で分類された.
- 多変数ロジスティック回帰により,連続したKO/TKO損失の予測要因が特定されました.
主要な成果:
- 調査対象のUFC選手の22.7%が2回連続でKO/TKOで敗戦した.
- 連続敗戦をしたファイター達は,年長で,男性である可能性が高く,より重量級で戦っていた.
- 以前のノックアウト歴は,連続したKO/TKO敗戦の唯一の独立した予測要因でした (OR=1.13,p=0.019).
結論:
- 前回のノックアウトへの曝露は,UFCのアスリートにおける後のKO/TKOの損失の重要なリスク要因です.
- ノックアウト歴のある戦士を特定することは,競技復帰と医療審査の決定に役立ちます.
- この研究は,コーチや医師が戦闘員の脆弱性を管理するのに役立ちます.
関連する概念動画
Line Loss
547
The different configurations of source-load connections include wye (star) and delta connections. The relationship between line and phase voltages and currents varies depending on the configuration. When the source is supplying power, it is transmitted through the wires to the load, and during this transmission, some power is absorbed by the wires, leading to line loss.
Line loss impacts power delivery efficiency in a balanced three-phase circuit. The symmetry in such a circuit simplifies the...
Line loss impacts power delivery efficiency in a balanced three-phase circuit. The symmetry in such a circuit simplifies the...
547
Reducing Line Loss
393
In a three-phase circuit, line loss is an indicator of energy dissipated as heat due to the resistance of transmission lines. To address this, incorporating transformers into the system—a step-up transformer at the source and a step-down transformer at the load—is a strategic solution. Two three-phase transformers are introduced to improve this.
With a step-up transformer at the source, the voltage is increased, thereby reducing the current in the transmission lines since power loss in...
With a step-up transformer at the source, the voltage is increased, thereby reducing the current in the transmission lines since power loss in...
393
Major Losses in Pipes
2.0K
When a fluid flows through a pipe, it experiences energy losses due to frictional resistance along the pipe walls, known as major losses. These energy losses result in a pressure drop, which varies based on the flow conditions — whether laminar or turbulent — and the specific physical properties of the fluid and pipe.
Fluid flow can be classified as laminar or turbulent, primarily based on the Reynolds number. This dimensionless number reflects the relative influence of inertial to viscous...
Fluid flow can be classified as laminar or turbulent, primarily based on the Reynolds number. This dimensionless number reflects the relative influence of inertial to viscous...
2.0K
Minor Losses in Pipes
2.0K
In pipe systems, minor losses refer to energy losses arising from components such as valves, bends, fittings, expansions, and other features that disrupt the steady flow of fluid. These disturbances cause energy dissipation through turbulence and resistance, which engineers quantify to manage system efficiency effectively.
Valves play a significant role in generating minor losses by obstructing or redirecting the fluid flow. When a valve is closed or partially closed, it restricts the flow...
Valves play a significant role in generating minor losses by obstructing or redirecting the fluid flow. When a valve is closed or partially closed, it restricts the flow...
2.0K
Energy Losses in Transformers
1.4K
In an ideal transformer, it is assumed that there are no energy losses, and, hence, all the power at the primary winding is transferred to the secondary winding. However, in reality, the transformers always have some energy losses, and, hence, the output power obtained at the secondary winding is less than the input power at the primary winding due to energy losses.
There are four main reasons for energy losses in transformers.
The first cause can be the high resistance of the...
There are four main reasons for energy losses in transformers.
The first cause can be the high resistance of the...
1.4K
Adaptations that Reduce Water Loss
28.3K
Though evaporation from plant leaves drives transpiration, it also results in loss of water. Because water is critical for photosynthetic reactions and other cellular processes, evolutionary pressures on plants in different environments have driven the acquisition of adaptations that reduce water loss.
28.3K


