A community, hope this helps.
Answer:
When skeletal muscles are trained by adding physical stress to them, this is called progressive resistance training (PRT).
Explanation:
During PRT, muscles are exercised against an <em>overload or resistance</em>; the overload is gradually increased in order to allow muscles to adapt. This allows for progressive strength increases over time.
Muscle fatigue is defined as a reduction in the ability to produce force due to exercise. This comprises:
- peripheral fatigue- due to changes at the junction between motor neurons and the muscle.
- central fatigue- caused by a reduced capacity to use voluntary force in relation to the capacity to use involuntary force
- and muscle damage- this is associated with several issues at the cellular level such as disrupted membranes and cytoskeletons; and tissue damage via torn muscle fibers, and collagen.
Overall, these may affect muscle fiber activation and the amount of force they are capable of producing- i.e. sustained strength. However, muscle fatigue can be greatly reduced via the maintenance of PRT. Also, apart from strength gains, PRT is <em>used for weight loss and muscle building</em>; common tools used in PRT include <em>free weights, elastic bands and exercise machines. </em>
Answer:
Yes
Explanation:
Stress fractures in the foot are very common as we continuously place force on them by walking, running, standing and jumping. In this the bone breaks but generally does not shift the position. One can walk as well as run but should not because it will delay healing and can lead to a compensatory injury altering your running form. Sooner it gets diagnosed and treated, athlete can return to normal activity faster.
Answer: Cover the burns with a clean, white, dry sheet.
Explanation:
The first degree burns affect the outer surface of the skin, these may cause redness, swelling and pain. The second degree burns may affect both outer and underlying surface of the skin. These burns may cause pain, swelling, redness and blisters. The third degree burns are the severe and lethal burns these affect the nerves and the bones.
The medical responders have removed the clothing and has cooled the burn. The responder must cover the burn and blisters with dry white sheet to prevent the contact of external air with the blisters which may cause irritation and itching at the burn site.
1. exercise
2. range of motion
3. muscle myofibrils
4. lactic acid
5. poor posture
6. varicose veins
7. antagonistic muscles
