Active Resisted Exercise in Physical Therapy

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16 Questions

Which of the following best defines muscle performance?

The ability of a muscle to do work

What is the main difference between muscle power and muscle endurance?

Power involves great force production, while endurance sustains contractions repeatedly

According to the lecture, what is the key element of muscle performance?

Strength

What is the main purpose of ACTIVE RESISTED EXERCISE?

To enhance muscular strength, power, and endurance

How is an active resisted exercise defined?

As any form of exercise in which muscular contraction is resisted by an outside force

What are the main components of muscle performance according to the lecture?

Strength, power, and endurance

What is the main benefit of active resisted exercise according to the text?

Increase in bone density

Which factor affects muscle tension by the cross-section and size of the muscle?

Recruitment of motor unit

What does exercise frequency in a resistance exercise program refer to according to the text?

Number of exercise sessions per day or per week

What is a 10 RM in the context of resistance exercise?

The most weight a person can lift for 10 consecutive exercise repetitions

In isotonic exercise, how does the Delorme technique differ from the Oxford technique?

The number of sets in each training program

What does exercise intensity refer to in resistance exercise?

The amount of force necessary to achieve the activity

What is the effect of eccentric muscle contraction on speed and tension according to the text?

High speed - high tension

Which factor affects muscle tension by the recruitment of motor units?

$Frequency of firing of motor units$

What is a repetition maximum (RM) used to measure?

Most weight a person can lift for a defined number of exercise movements

What do the first two sets act as in the Delorme technique according to the text?

Warm up sets

Study Notes

Muscle Performance

  • Muscle performance is best defined as the ability to generate force, speed, and endurance.
  • The key element of muscle performance is muscle power, which is the product of force and velocity.

Muscle Power vs Muscle Endurance

  • Muscle power refers to the ability to generate force quickly, while muscle endurance refers to the ability to sustain muscle activity over time.

Active Resisted Exercise

  • The main purpose of active resisted exercise is to improve muscle strength and endurance.
  • Active resisted exercise is defined as a type of exercise where muscles contract against an external resistance, such as weights or resistance bands.
  • The main benefit of active resisted exercise is that it increases muscle tension and strength.

Components of Muscle Performance

  • The main components of muscle performance are muscle power, muscle endurance, and muscle strength.

Muscle Tension

  • Muscle tension is affected by the cross-section and size of the muscle, as well as the recruitment of motor units.

Exercise Frequency and Intensity

  • Exercise frequency in a resistance exercise program refers to the number of times a muscle group is trained per week.
  • Exercise intensity refers to the amount of weight or resistance used during an exercise.

Resistance Exercise Techniques

  • In isotonic exercise, the Delorme technique differs from the Oxford technique in that it involves a series of exercises with progressive weights, while the Oxford technique involves a single exercise with a fixed weight.
  • A 10 RM (repetition maximum) is the maximum weight that can be lifted for 10 repetitions.

Muscle Contraction

  • Eccentric muscle contraction, which occurs when a muscle lengthens while generating force, results in slower speed and increased tension.

Repetition Maximum (RM)

  • A repetition maximum (RM) is used to measure muscle strength and endurance.

Delorme Technique

  • In the Delorme technique, the first two sets act as a warm-up to prepare the muscle for the heavier weights used in subsequent sets.

Learn about the components of muscle performance, definition of resisted exercise, benefits, indications, and contraindications of active resisted exercise in the field of physical therapy. Understand the factors affecting muscle tension and the main components of the exercise.

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