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Strength is measured by how much weight or resistance you can overcome, regardless of your body size.
Absolute strength
A fiber that contracts quickly is white because it requires less blood flow to deliver oxygen and generates more force than slow-twitch muscle fiber when it contracts.
Fast-twitch Muscle fiber
Using weights and resistance to improve muscle fitness
Resistance training
Contraction in which muscles exert force but do not cause movement at a joint
Isometric Contraction
Increase of muscle fiber size
Hypertrophy
Exercise done using all or part of the body weight as resistance
Calisthenics
A type of training designed to increase athletic performance using jumping, hopping, and other exercises to cause lengthening of a muscle followed by a shortening contraction.
Plyometrics
The number of consecutive times you do an exercise
Repetition (Rep)
Fiber with characteristics of both slow and fast twitch fibers.
Intermediate Muscle Fiber
Decrease in muscle fiber size
Atrophy
A shortening isotonic muscle contraction
Concentric
A test of muscle strength in which you determine how much weight you can lift in one repetition
Repeition Maximum (1RM)
One group of repetitions
Set
Involves isometric contractions, and which body parts do not move
Isometric exercise
A shortening isotonic muscle contraction
Concentric
A device that measures the amount of force produced by a muscle or group of muscles.
Dynanometer
Principle stating that you need to give your muslces time to rest and recover after a workout
Muscle fiber that contracts at a slow rate is usually red because it has a lot of blood vessels delivering oxygen, and generates less force than fast-twitch muscle, but can resist fatigue
Slow-twitch Muslce Fiber
A muscle contraction that pulls on a bone and moves a body part
Isotonic Contraction
A lengthening isotonic contraction
Eccentric
A lengthening isotonic contraction
Eccentric
Strength adjusted for your body size
Relative strength
Exercise that increases resistance until you achieve the desired level of muscle fitness, also known as progressive resistance training.
Progressive Resistance Exercise
Type of isotonic exercise in which movement velocity is kept constant through the full range of motion
Isokinetic Exercise
A muscle contraction that pulls on a bone and moves a body part
Isotonic Contraction