まとめ
プロのバスケットボール選手は,しばしば心筋の正常な適応である生理学的縮を示します. この研究では,運動選手の右心室と左心室の両方の拡大が認められ,休息時の心臓の機能は正常であった.
科学分野:
- 心臓病学 心臓病学
- スポーツ医学 スポーツ医学
- 生理学 生理学とは
背景:
- スポーツ選手は,しばしば心電図 (ECG) に異常な結果が出ることがあります.
- アスリート集団では,生理学的適応と病理学的適応を区別することが極めて重要です.
研究 の 目的:
- 非侵襲的なグラフィック・メソッドを使用して,プロの男性バスケットボール選手の心臓適応を調査する.
- これらのアスリートにおいて,心室縮および心室膨張の証拠を評価する.
主な方法:
- ECG,ベクトル心臓撮影 (VCG),フォノ心臓撮影,胸部X線,エコー心臓撮影を用いて,男性プロバスケットボール選手42人 (年齢21~31歳) を研究した.
- 心臓の寸法と機能を,エコーカルディオグラフィーを用いた対照群と比較した.
- サブマキシマルトレッドミルのエクササイズテスト (ブルースプロトコル) を含む.
主要な成果:
- 25%が左心室縮のEKG基準を満たし,29%が左心室縮のVCG基準を満たした.
- 79%が前方0.04secベクトルを持ち,29人が右心室拡大の基準を示した.
- 96%が第3の心臓音を発し,56%が第4の心臓音を発し,しばしば心室縮と関連していました.
- エコーカルディオグラフィは,対照群と比較して,左心室の終端ダイアストリック寸法 (P<0.02) と後壁の厚さ (P<0.05) の増加を示した.
- アスリートでは,右心室の終末ダイアストリック寸法が有意に増加した (P<0.004).
- 射出分数と平均Vcf (環状繊維の縮小速度) は,スポーツ選手では正常であった.
結論:
- よく訓練されたアスリートは,しばしば,右心室と左心室の両方の膨張によって特徴づけられる生理学的縮を示します.
- 構造的な変化にもかかわらず,これらのアスリートでは,左心室のパフォーマンスは休息状態でも正常のままです.
- これらの発見は,アスリート性心臓リモデリングが,選択されたサブグループにおける正常の変異体であることを示唆しています.
さらに関連する動画
07:40Impact of High-intensity Interval Exercise and Moderate-Intensity Continuous Exercise on the Cardiac Troponin T Level at an Early Stage of Training
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02:47Exercise Test for Evaluation of the Functional Efficacy of the Pig Cardiovascular System
Published on: May 12, 2023
関連する概念動画
01:11Assessment of radial pulse
Assessment of Radial Pulse
The radial pulse, located at the wrist, is often the preferred site for assessing peripheral pulse because of its accessibility and dependability. The process of determining the radial pulse involves several steps:
The radial pulse, located at the wrist, is often the preferred site for assessing peripheral pulse because of its accessibility and dependability. The process of determining the radial pulse involves several steps:
01:17Exercise and Cardiac Output
Regular physical activity is essential for maintaining cardiovascular health, with aerobic exercises being particularly effective. According to the American Heart Association, 150 minutes of moderate to intense aerobic exercise per week is recommended for a healthy heart. Aerobic activities may include brisk walking, running, bicycling, cross-country skiing, and swimming, ideally performed three to five times per week.
Sustained exercise increases the muscles' oxygen demand, which can be met...
Sustained exercise increases the muscles' oxygen demand, which can be met...
01:20Exercise and Cardiovascular Response
Exercise significantly impacts cardiovascular response, which is crucial for understanding patient health and designing effective treatment plans.
Light to moderate physical activity initiates a series of interconnected responses in the body. The heart rate modestly increases in anticipation of the workout, followed by widespread vasodilation as oxygen consumption by skeletal muscles increases. This results in decreased peripheral resistance, increased capillary blood flow, and accelerated...
Light to moderate physical activity initiates a series of interconnected responses in the body. The heart rate modestly increases in anticipation of the workout, followed by widespread vasodilation as oxygen consumption by skeletal muscles increases. This results in decreased peripheral resistance, increased capillary blood flow, and accelerated...
01:27Assessment of the Cardiovascular System III: Palpation
Palpation involves feeling the body to evaluate texture, size, consistency, and tenderness for assessing cardiovascular health. The following steps are organized in a head-to-toe order:
Jugular Venous Pressure (JVP) Measurement
Position the patient at a thirty- to forty-five-degree angle or in a semi-fowler's position. Look for the highest point of pulsation in the internal jugular vein and measure the vertical distance to the angle of Loius or sternal angle. A normal JVP is 3-4 cm above the...
Jugular Venous Pressure (JVP) Measurement
Position the patient at a thirty- to forty-five-degree angle or in a semi-fowler's position. Look for the highest point of pulsation in the internal jugular vein and measure the vertical distance to the angle of Loius or sternal angle. A normal JVP is 3-4 cm above the...
01:25Assessment of the Cardiovascular System IV: Auscultation
Cardiac auscultation is a clinical skill used to assess heart function and detect abnormalities. It involves listening to heart sounds at specific anatomical locations through a stethoscope.
Normal Heart Sounds
S1 (First Heart Sound)-
S1 is made by the closure of the mitral and tricuspid valves (atrioventricular valves), marking the beginning of systole.
S2 (Second Heart Sound)-
S2 is made by the closure of the aortic and pulmonic valves (semilunar valves), marking the end of the systole.
Normal Heart Sounds
S1 (First Heart Sound)-
S1 is made by the closure of the mitral and tricuspid valves (atrioventricular valves), marking the beginning of systole.
S2 (Second Heart Sound)-
S2 is made by the closure of the aortic and pulmonic valves (semilunar valves), marking the end of the systole.
01:26Exercise Stress Test
Introduction
Exercise stress testing, commonly known as a treadmill test, is a noninvasive procedure used to evaluate cardiovascular function and diagnose heart conditions.
Definition
An exercise stress test measures the heart's response to exertion using a treadmill or stationary bicycle. Chest electrodes record the heart's electrical activity through an ECG, and blood pressure is monitored regularly.
Purposes
Exercise stress testing, commonly known as a treadmill test, is a noninvasive procedure used to evaluate cardiovascular function and diagnose heart conditions.
Definition
An exercise stress test measures the heart's response to exertion using a treadmill or stationary bicycle. Chest electrodes record the heart's electrical activity through an ECG, and blood pressure is monitored regularly.
Purposes