Chapter 2- Principles of Physical Fitness Flashcards
only about….of all Americans exercise vigorously for more than 20 minutes 3X per week
1/9
What is Physical activity?
movement carried out by the skeletal muscles and requires energy
ex. sitting, walking, running
What is exercise?
planned, structured, repetitive movement intended to improve or maintain physical fitness
how many minutes per day can show great results?
30 min
What are the ACSM guidelines for exercise?
150 mins per week of moderate (20-25 min per day)
75 mins per week of (10-12 min per day)
Moderate Exercise
3.5-7 calories per min
walking on flat surface
Vigorous Exercise
7+calories per min
walking on sand
walking on incline
Always increase what before what?
Time BEFORE intensity
What are the 5 components of Physical Fitness?
Cardio respiratory Endurance Muscular Strength Muscular Endurance Flexibility Body Composition
Cardiorespiratory Endurance
ability to preform prolonged, large-muscle, dynamic exercise at moderate to high levels of intensity
Heart and lungs
physiological improvements due to cardio endurance?
resting heart rate decreases
blood supply to tissues increases
resting blood pressure decreases
blood volume increases
Muscular Strength
Amount of force a muscle can produce with a single max effort
depends on: muscle size and nervous activation-contractions and relaxation
important for everyday activities
muscular endurance
ability to resist fatigue and sustain a given level of muscular tension
- posture
- injury prevention
Flexibility
ability to move joints through full range of motion without any pain
Body composition
proportion of fat and fat-free mass in the body
- someone with more adipose tissue will be more likely to experience health problems
- calories in vs calories burned