Do women or men experience fatigue more quickly while exerci

Do women or men experience fatigue more quickly while exercising? To investigate this issue, researchers recruited healthy young adults to participate in a study (Hunter et al., 2004). The researchers first measured the strength of each person by the torque exerted at the wrist during a maximal voluntary contraction. Then they matched up each of the 10 men in the study with a woman of comparable strength (within 5 % of the maximal torque exerted). Next, they asked each subject to complete a prescribed series of exercises with their elbow flexor muscles and elbow extensor muscles until they lacked the strength to continue. Researchers recorded how long it took before failure at this exercise task for each subject.

a. Calculate the correlation coefficient between time until muscle fatigue for men and time until muscle fatigue for women.

Round your answer to three decimal places.

r equals

b. Comment on what this correlation coefficient suggests about whether men and women of similar strength tend to have similar times until muscle fatigue.

The correlation coefficient suggests there is between fatigue times.

Solution

a)

Using technology, we get the correlation,              
              
r =    0.010068682   [ANSWER]

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b)

The correlation coefficient suggests there is no significant correlation between fatigue times, as the correlation is very close to 0.

Thus, they don\'t have similar time until muscle fatigue.