Physical activities and types of physical activities. Benefits of physical activities, intensity of physical activities.

1. Types of physical
activity and
their intensity

2. Physical activity:-
Physical activity is defined as any bodily movement produced by skeletal
muscles that requires energy expenditure. Physical activity encompasses
all activities, at any intensity, performed during any time of day or night. It
includes exercise and incidental activity integrated into daily activity. This
integrated activity may not be planned, structured, repetitive or
purposeful for the improvement of fitness, and may include activities such
as walking to the local shop, cleaning, working, active transport etc. Lack
of physical activity is associated with a range of negative health outcomes
whereas increased physical activity can improve physical as well as mental
health.

3. Types of physical
activity:-
● Aerobic physical activity
● Anerobic physical activity
● Muscle strengthening activity

4. Aerobic physical activity:-
Aerobic exercise (also known as cardio) is physical exercise of low to high
intensity that depends primarily on the aerobic energy-generating process.[1]
"Aerobic" means "relating to, involving, or requiring free oxygen",[2] and
refers to the use of oxygen to adequately meet energy demands during
exercise via aerobic metabolism.[3] Generally, light-to-moderate intensity
activities that are sufficiently supported by aerobic metabolism can be
performed for extended periods of time.[1] What is generally called aerobic
exercise might be better termed "solely aerobic", because it is designed to be
low-intensity enough so that all carbohydrates are aerobically turned into
energy.

6. Anerobic physical activity:-
Anaerobic exercise features high intensity movements performed in a short period
of time. It can be used by athletes to promote strength, endurance, speed and
power; and is used by body builders to build workout intensity. Muscle energy
systems trained using anaerobic exercise develop differently compared to aerobic
exercise, leading to greater performance in short duration, high intensity activities,
which last from mere seconds to up to about 2 minutes.Energy is drawn from a
limited supply of stored muscle glycogen to support this short burst of intense
activity. Anaerobic exercises demands more energy than Aerobic exercises.
Anaerobic exercise may be used by personal trainers to help their client take steps
to building endurance, and build muscle strength and power. Anaerobic exercises
coupled with Aerobic exercises provide health benefits for those diagnosed with
diabetes.

8. Muscle strengthening activity:-
Strength training involves the performance of physical exercises which are
designed to improve strength and endurance. It is often associated with the use of
weights but can take a variety of different forms.When properly performed,
strength training can provide significant functional benefits and improvement in
overall health and well-being, including increased bone, muscle, tendon, and
ligament strength and toughness, improved joint function, reduced potential for
injury, increased bone density, increased metabolism, increased fitness and
improved cardiac function.Training commonly uses the technique of progressively
increasing the force output of the muscle through incremental weight increases
and uses a variety of exercises and types of equipment to target specific muscle
groups. Strength training is primarily an anaerobic activity, some proponents have
adapted it to provide the benefits of aerobic exercise through circuit training.

10. Intensity:-
Physical activity can be at any intensity, from a simple twitch of a
muscle, to an all out sprint. For practicality, physical activity can
be viewed as a continuum from sedentary behavior to vigorous
intensity activity. Intensities are broadly categorized according to
energy expenditure using a standard measure of intensity,
metabolic equivalents (METs). The broad categories are
sedentary behavior, light activity, moderate activity and vigorous
activity.