Answer:
True.
Explanation:
Stage 1 of NREM sleep is characterized by a low amplitude EEG, mixed frequency between range a and s (2 to 7Hz). EMG activity is usually higher than at other stages of sleep, but amplitude can vary widely. Stage 2 of NREM sleep is recognized by background activity and episodes of sleep spindles and K-complexes. Sleep spindles are short (12 to 14 Hz) waves that increase and decrease in amplitude to produce a spindle characteristic. Stage 3 NREM sleep is classified when slow waves or d waves (£ 2Hz) and high amplitude greater than 75mV (measured from lowest to highest wave - peak to peak) appear at 20 to 50% of the time of the day. record. Stage 4 NREM sleep is similar for EEG, EMG, and EOG from the previous stage; however, stage 4 is characterized by the presence of d waves in more than 50% of the time.
Accordingly, we can conclude that going through the NREM stages (1 to 4), the frequency of EEG waves decreases but their amplitude increases.
Answer:
It is recommended to exercise an hour at a time because ligaments, joints, and muscles get weak after an hour of exercise which can increase the risk of injury.
Answer:
The correct answer is A. Low energy availability
Explanation:
For an endurance athlete energy availability is very much important. An endurance athlete should eat at least 2000 calories even if he wants to lose weight.
So if an endurance athlete does not consume appropriate calories then during the performance his energy availability will be low which will affect his performance. Endurance athletes require more energy reserves in the body because they have to perform physical activity for a long time.
Therefore if an endurance athlete consumes too few calories then it will lead to a low availability of energy in his body.
Answer:
The most common injuries are Sprains and Strains
Explanation:
Sprains and Strains account for about 54% of single occupational injuries in the healthcare sector today.
