Health, 27.06.2019 04:30, QueenNerdy889
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: 1
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Melissa is at the gym for a leg workout. they first start warming up by squatting with only the squa...
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