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Related Concept Videos

Exercise and Muscle Performance01:27

Exercise and Muscle Performance

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Exercise induces a range of adaptations in muscle tissue, depending on the type and duration of activity. Such physical training can be broadly categorized into two types: endurance exercises and resistance exercises.
Endurance exercises
Endurance exercises involve running, swimming, or cycling, which require repetitive movements with low force output. When a person engages in endurance exercise, a few noticeable changes occur in their skeletal muscles. For instance, the number of capillaries...
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Resistance01:19

Resistance

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When a current moves through any conductor, the conductor causes some level of difficulty for the current to flow. The measure of that difficulty is known as the resistance of the material and is represented by R. Every material has its own resistance. In the case of conductors, heat is emitted whenever a current passes through them. Resistance depends on the resistivity of the material. Resistivity is a characteristic of the material used to fabricate electrical components, whereas the...
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Isotonic and Isometric Muscle Contractions01:22

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Two primary types of muscle contractions are isotonic and isometric, each serving unique functions and involving distinct mechanisms. Both isotonic and isometric contractions are integral to the body's complex system of movement and stability. Isotonic exercises contribute significantly to functional strength and movement, while isometric contractions are crucial for maintaining posture and joint stability.
Isotonic contractions
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Ohm's Law01:19

Ohm's Law

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Resistors are fundamental components in electrical circuits, often manufactured from metallic alloys or carbon compounds. They model a material's ability to resist the flow of electric current, a characteristic that is crucial in controlling and regulating electrical power within a circuit.
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Exercise and Cardiovascular Response01:20

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Exercise significantly impacts cardiovascular response, which is crucial for understanding patient health and designing effective treatment plans.
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Design Example: Frog Muscle Response01:14

Design Example: Frog Muscle Response

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A student is tasked to work on an intriguing experiment involving an RL (Resistor-Inductor) circuit to study the muscle response of a frog's leg to electrical stimulation. The RL circuit plays a crucial role in this experiment, providing the means to control and measure the electrical impulses that trigger muscle contraction.
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Adapted Resistance Training Improves Strength in Eight Weeks in Individuals with Multiple Sclerosis
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Adapted Resistance Training Improves Strength in Eight Weeks in Individuals with Multiple Sclerosis

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Resistance Training: Basic Principles (Part 1 of 4).

S J Fleck, W J Kraemer

    The Physician and Sportsmedicine
    |July 13, 2016
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    Summary
    This summary is machine-generated.

    This article clarifies resistance training terms and concepts, covering sports like weight lifting and bodybuilding. It compares free weights versus machines and offers beginner recommendations for starting a resistance training program.

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    Area of Science:

    • Exercise Physiology
    • Sports Science

    Background:

    • Resistance training terminology can be confusing for beginners.
    • Understanding different resistance training modalities is crucial for effective program design.

    Purpose of the Study:

    • To clarify key terms and concepts in resistance training.
    • To differentiate between various resistance training sports and equipment.

    Main Methods:

    • Literature review of resistance training principles.
    • Comparative analysis of free weights and resistance training machines.
    • Development of recommendations for novice trainees.

    Main Results:

    • Defined core resistance training concepts.
    • Described weight lifting, power lifting, and bodybuilding.
    • Highlighted advantages of free weights over machines for certain goals.

    Conclusions:

    • Clearer understanding of resistance training terminology aids program adherence.
    • Informed choices between free weights and machines enhance training outcomes.
    • Structured recommendations support safe and effective initiation of resistance training programs.