Characteristics of isometric contractions include all but:
a. Shortening
b. Increased muscle tension throughout the contraction phase
c. Absence of shortening
d. Used in resistance training

검증된 단계별 안내

Step 1: Understand the definition of an isometric contraction. In an isometric contraction, the muscle generates tension without changing its length, meaning there is no visible shortening or lengthening of the muscle fibers.

Step 2: Analyze each option in the context of isometric contractions. Option (a) states 'Shortening,' which contradicts the definition because isometric contractions do not involve muscle shortening.

Step 3: Consider option (b) 'Increased muscle tension throughout the contraction phase.' This is true for isometric contractions, as the muscle tension increases while the length remains constant.

Step 4: Evaluate option (c) 'Absence of shortening.' This aligns with the definition of isometric contractions, where the muscle length stays the same.

Step 5: Review option (d) 'Used in resistance training.' Isometric exercises are commonly used in resistance training to build strength without joint movement, so this is also true.

비슷한 문제에 대한 검증된 영상 답변:

이 영상 해법은 위 문제에 도움이 된다고 튜터들이 추천한 것입니다.

영상 길이:

도움이 되었나요?

주요 개념

질문에 올바르게 답하기 위해 반드시 이해해야 하는 핵심 개념들은 다음과 같습니다.

Isometric Contraction

Isometric contraction occurs when muscle tension increases but the muscle length remains constant, meaning there is no visible shortening or lengthening of the muscle during the contraction.

Muscle Tension During Contraction

During isometric contractions, muscle tension rises and is maintained without changing muscle length, which differs from isotonic contractions where muscle length changes while tension may vary.

Applications of Isometric Contractions in Training

Isometric exercises are commonly used in resistance training to improve strength and stability by holding muscles in a fixed position against resistance without movement.

Characteristics of isometric contractions include all but:a. Shorteningb. Increased muscle tension throughout the contraction phasec. Absence of shorteningd. Used in resistance training