Muscle Size And Muscle Fatigue Experiment
According to the National Center for Biotechnology Information (NCBI), depending on the task males or females were more or less resistant for the muscle group being used. Valley Center High School physiology students conducted experiments on muscle size and strength and muscle fatigue. With this in mind, the data the students collected from these labs and other sources shows how muscle size and sex have an impact on an individual’s muscle fatigue resistance. First, the muscle size of an individual determines how long they can withstand certain types of physical activity. For example, an article from the source from above called “Sex Differences in Fatigue Resistance Are Muscle Group Dependent” by Keith G. Avin states that the sixteen females that participated in their experiment (on if females are more fatigue resistant than males) were more resistant at the elbow than males but not at the ankles “Females (112.3 ± 6.2 sec) were significantly
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more resistant to fatigue than males (80.3 ± 5.8 sec) at the elbow (p=0.001); but not at the ankle (p=0.45; 140.6 ± 10.7 vs. 129.2 ± 10.5 sec).” The females’ muscle sizes could have been a factor in being more resistant to fatigue but also the endurance of each individual’s muscle group too. In addition, since the female muscle sizes are smaller in comparison, the oxygen debt of the female could be less than the oxygen debt of males. As a result, a person’s muscle size can affect how long a person’s muscles can work. Second, an individual’s sex has more of an impact on muscle fatigue due to the many differences between males and females. For instance, an article from The American College of Sports Medicine “Sex Differences in Human Skeletal Muscle Fatigue” by Audrey L. Hicks explains that the muscle mass of each gender differs which leads to a demand in oxygen levels “The most obvious source of the difference in fatigability between males and females is likely related to muscle mass, which theoretically will affect oxygen demand and perfusion (oxygen delivery) during muscle contractions at the same relative force level.” For each gender, the muscle mass varies so there cannot be a way to tell if the muscles would tire out at the same rate because of the anaerobic respiration going on in the body. Furthermore, the blood supply of each gender also differs so the needed amount of oxygen to be replenished would have varying effects of how long until the muscles would be able to work out again. Altogether, the gender of a person can influence the resistance to fatigue.
Third, the Valley Center High School’s data from the muscle size and strength and muscle fatigue labs emphasize the great impact muscle size and sex have on muscle fatigue.
VCHS physiology students conducted experiments which included measuring the biceps, forearms and triceps and comparing the sizes between males and females. They then used a clothespin in order to measure the fatigue resistance of an individual by calculating the number of clothespin clicks in two and a half minutes. According to the data charts, many of the male students had larger muscle sizes than the females students which leads to the males being able to perform more average clothespin clicks per second than the females. However, there were a few female students that had a little bit bigger bicep, forearm, or tricep size than a few of the male students but still had fewer clothespin clicks. Therefore, muscle fatigue greatly depends on the individual’s resistance to fatigue in the muscle group being used and also the muscle size and sex of the
individual.
In conclusion, muscle size and sex greatly impact muscle resistance. The data from the sources named and from the experiments made at Valley Center High School further portray the relation between the gender of the individual and their muscle size on their fatigue resistance. Ultimately, the muscle fatigue of an individual can be greater than or less than others’ muscle fatigue due to gender, size of muscles, and the individual’s overall resistance in the muscle group being used (oxygen debt, blood supply, etc).
more resistant to fatigue than males (80.3 ± 5.8 sec) at the elbow (p=0.001); but not at the ankle (p=0.45; 140.6 ± 10.7 vs. 129.2 ± 10.5 sec).” The females’ muscle sizes could have been a factor in being more resistant to fatigue but also the endurance of each individual’s muscle group too. In addition, since the female muscle sizes are smaller in comparison, the oxygen debt of the female could be less than the oxygen debt of males. As a result, a person’s muscle size can affect how long a person’s muscles can work. Second, an individual’s sex has more of an impact on muscle fatigue due to the many differences between males and females. For instance, an article from The American College of Sports Medicine “Sex Differences in Human Skeletal Muscle Fatigue” by Audrey L. Hicks explains that the muscle mass of each gender differs which leads to a demand in oxygen levels “The most obvious source of the difference in fatigability between males and females is likely related to muscle mass, which theoretically will affect oxygen demand and perfusion (oxygen delivery) during muscle contractions at the same relative force level.” For each gender, the muscle mass varies so there cannot be a way to tell if the muscles would tire out at the same rate because of the anaerobic respiration going on in the body. Furthermore, the blood supply of each gender also differs so the needed amount of oxygen to be replenished would have varying effects of how long until the muscles would be able to work out again. Altogether, the gender of a person can influence the resistance to fatigue.
Third, the Valley Center High School’s data from the muscle size and strength and muscle fatigue labs emphasize the great impact muscle size and sex have on muscle fatigue.
VCHS physiology students conducted experiments which included measuring the biceps, forearms and triceps and comparing the sizes between males and females. They then used a clothespin in order to measure the fatigue resistance of an individual by calculating the number of clothespin clicks in two and a half minutes. According to the data charts, many of the male students had larger muscle sizes than the females students which leads to the males being able to perform more average clothespin clicks per second than the females. However, there were a few female students that had a little bit bigger bicep, forearm, or tricep size than a few of the male students but still had fewer clothespin clicks. Therefore, muscle fatigue greatly depends on the individual’s resistance to fatigue in the muscle group being used and also the muscle size and sex of the
individual.
In conclusion, muscle size and sex greatly impact muscle resistance. The data from the sources named and from the experiments made at Valley Center High School further portray the relation between the gender of the individual and their muscle size on their fatigue resistance. Ultimately, the muscle fatigue of an individual can be greater than or less than others’ muscle fatigue due to gender, size of muscles, and the individual’s overall resistance in the muscle group being used (oxygen debt, blood supply, etc).