ISBN-13: 978-1-4504-6820-6 (Online CE Course)
Copyright 2014 by Vivian H. Heyward and Ann L. Gibson
Copyright 2010, 2006, 2002, 1998, 1991 by Vivian H. Heyward
Copyright 1984 by Burgess Publishing Company
This e-book is a custom edition of Advanced Fitness Assessment and Exercise Prescription, Seventh Edition, published in 2014 by Human Kinetics, Inc. (Print ISBN: 978-1-4504-6600-4)
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Contents
Preface
Muscular strength and endurance are two important components of muscular fitness. Minimal levels of muscular fitness are needed to perform activities of daily living, to maintain functional independence as one ages, and to partake in active leisure-time pursuits without undue stress or fatigue. Adequate levels of muscular fitness lessen the chance of developing low back problems, osteoporotic fractures, and musculoskeletal injuries.
Muscular strength and endurance are important to the overall health and physical fitness of your clients, enabling them to engage in physically active leisure-time pursuits, to perform activities of daily living more easily, and to maintain functional independence later in life. Resistance training is a systematic program of exercise for development of the muscular system. Although the primary outcome of resistance training is improved strength and muscular endurance, a number of health benefits are also derived from this form of exercise.
While resistance training has long been widely used by bodybuilders, powerlifters, and competitive athletes to develop strength and muscle size, participation in weightlifting by individuals of all ages and levels of athletic interest has increased dramatically over the past 30 yr. The popularity and widespread appeal of weightlifting exercise for general muscle conditioning challenge exercise specialists and personal trainers to develop resistance training programs that can meet the diverse needs of their clients.
Chapter 6 describes a variety of laboratory and field tests for assessing all forms of muscular strength and endurance. In addition, the chapter compares types of exercise machines, addresses factors affecting muscular fitness tests, discusses sources of measurement error, and provides guidelines for testing muscular fitness of children and older adults.
Chapter 7 shows you how to apply basic training principles to the design of resistance training programs for novice, intermediate, and advanced weightlifters. The chapter also presents guidelines for developing muscle strength, muscle endurance, muscle size, and muscle power. The chapter addresses various models of periodization, functional training exercise progressions, and guidelines for youth resistance training.
These chapters and the accompanying appendix are full excerpts from Advanced Fitness Assessment and Exercise Prescription, Seventh Edition. The books full glossary and reference list are also provided at the end of the e-book.
Chapter 6
Assessing Muscular Fitness
Key Questions
- How are strength and muscular endurance assessed?
- How does the type of muscle contraction (concentric, eccentric, or isokinetic) affect force production?
- What test protocols can be used to assess a clients muscular fitness?
- What are the advantages and limitations of using free weights and exercise machines to assess muscular strength?
- What are sources of measurement error for muscular fitness tests, and how are they controlled?
- What are the recommended procedures for administering 1-RM strength tests?
- Is it safe to give 1-RM strength tests to children and older adults?
- What tests can be used to assess the functional strength of older adults?
Muscular strength and endurance are two important components of muscular fitness. Minimal levels of muscular fitness are needed to perform activities of daily living, to maintain functional independence as one ages, and to partake in active leisure-time pursuits without undue stress or fatigue. Adequate levels of muscular fitness lessen the chance of developing low back problems, osteoporotic fractures, and musculoskeletal injuries.
This chapter describes a variety of laboratory and field tests for assessing all forms of muscular strength and endurance. In addition, the chapter compares types of exercise machines, addresses factors affecting muscular fitness tests, discusses sources of measurement error, and provides guidelines for testing muscular fitness of children and older adults.
Definition of Terms
Muscular strength is defined as the ability of a muscle group to develop maximal contractile force against a resistance in a single contraction. The force generated by a muscle or muscle group, however, is highly dependent on the velocity of movement. Maximal force is produced when the limb is not rotating (i.e., zero velocity). As the speed of joint rotation increases, the muscular force decreases. Thus, strength for dynamic movements
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