Health College

Melissa is at the gym for a leg workout. They first start warming up by squatting with only the squat bar (45 lbs): this is an easy task for her. Then, she goes on to the main part of her workout: she squats 5 repetitions of her maximum load (175 lbs), stop to rest for 60 secs, then do so again, for a total of 5 x 5 repetitions. A. In comparison to lifting 45 lbs, what had to happen in Melissa’s muscle cells to allow her to lift 175 lbs? B. Because the 175-lbs load is very heavy for Melissa, her coach has trained her to start her squat movement in a very specific position (see picture above). How does this position allow sarcomeres to generate more force? C. Compare the 2 contractions (the one with 45 lbs and the one with 175 lbs): what is the expected difference in terms of latent period and muscle shortening velocity. After her 5th block of 5 repetitions, Melissa’s coach asks her to perform an extra “surprise” set, but, despite her best efforts, she can only do 2 repetitions. This is similar to what you observed in PEX-02-04, when you stimulated the muscle at 150 stimuli

Answers

Answer 1

Answer: I think the answer is B. Because the 175-lbs load is very heavy for Melissa, her coach has trained her to start her squat movement in a very specific position.

I hope this helps!

Related Questions

which position requires the highest level of education

Answers

Answer: It depends on the position within the field. The highest level of educational attainment is a doctorate.

Explanation:

What is the purpose of Pre-exposure Prophylaxis (PrEP)?

Answers

Answer:

Pre-exposure Prophylaxis (PrEP) can stop HIV spread throughout the body. It is used for people with a high risk of contamination like sex, or injection. It is very effective if it is used every day. The risk of contamination by sex can be much lower if you take PrEP and also use condoms or other methods.

Explanation:

Pre-exposure Prophylaxis  is a preventive method against HIV infection.

Explanation:

This can be taken orally as pills. People who are under high risk of IV infection can take the pill regularly to prevent infection.

If someone gets exposed to HIV either through sex or injection the pill can help by preventing a permanent viral infection. Protection offered can be maximised by ensuring the daily intake of the pill.

It prevents infection through sex by 99%. 77% percentage of the infection through injection can be prevented by this method.

Ruth has weighed 130 pounds all her adult life. During her pregnancy, she gained 25 pounds. After having her baby, Ruth’s weight returned naturally to 130 pounds. For Ruth, 130 pounds is a(n) ________, and her body went back to it through the process of ________. a. optimal weight; homeostasis b. set point; equilibrium c. optimal weight; equilibrium d. set point; homeostasis

Answers

Answer:

First blank: optimal weight

second blank: homestasis

I believe those are the answers.

Explanation:

Final answer:

For Ruth, 130 pounds would be considered her set point, which is a form of 'ideal' body weight that the body maintains through homeostasis. After her pregnancy, Ruth's body went back to this weight, proving that her body maintained homeostasis.

Explanation:

In the context of this question, for Ruth, 130 pounds would be considered her set point. A set point is thought to be a sort of 'ideal' body weight that the body strives to maintain, even in the face of changes in diet and activity. It's believed to be a way the body maintains homeostasis.

Homeostasis is the process through which the body maintains a stable internal environment, even when external conditions change.

In this context, Ruth's body has corrected the temporary weight gain caused by pregnancy (a change in the external environment), bringing Ruth back to her set point weight of 130 pounds. So, the complete answer would be: d. set point; homeostasis.

Learn more about Set Point Homeostasis here:

https://brainly.com/question/34850605

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You decide to ride your bike for 30 minutes, raising your heart rate to the middle of your target heart rate zone. What type of activity is this an example of?

Answers

This activity is an aerobic activity. This is known as aerobic because this consists of cardio exercises. During these activities, the heart rate and breathing rate will increase. These require free oxygen for a longer time.

Answer:

Aerobic Activity

Explanation:

Aerobic activity is any type of physical activity that through rapid and rhythmic movements causes muscle cell oxygenation, high caloric expenditure and increased heart rate.

Aerobic exercises are considered: walking, running, rowing, swimming, cycling, skating, dancing. In gyms there are some adaptations of dance styles like cardiofunk, aeroaxé, aerolambada etc.

Aerobic exercises are characterized by long duration and constant intensity. Regular practice provides several health benefits, such as improving cardiovascular performance and blood circulation, strengthening muscles, burning fat, and shaping the body and improving quality of life.

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