UMass Amherst KIN 470 - kin 470 lab report 1 (9 pages)

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kin 470 lab report 1



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kin 470 lab report 1

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Pages:
9
School:
University of Massachusetts Amherst
Course:
Kin 470 - Exercise Physiology
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Victoria Newbury Lab Section Tuesday 1 00 Due 2 11 14 Kin 470 Exercise Physiology Lab instructor Ben Hoffman Lab Report 1 Anaerobic Power and the Anticipatory Response to Exertion Results Both participants showed an increase in the number of revolutions from 5 seconds to 10 seconds into the exercise After 10 seconds both participants began to decrease in the number of revolutions they produced Participant 1 s power output decreased by 50 04 and participant 2 decreased by 42 86 Peak anaerobic power relative peak anaerobic power mean anaerobic power relative mean anaerobic power and lowest peak anaerobic for each participant can be seen in table 2 Wingate results Graph 1 Revolutions per every 5 second interval for Participants 1 and 2 8 7 6 5 4 3 2 1 0 Revolutions per every 5 seconds Participant 1 Revolutions per every 5 seconds Participant 2 Table 1 Participant Characteristics Gender P1 Female Age 22 Height 5 1 Weight kg 62 72 kg Training Active 6x week more resistance P2 Female 21 5 4 63 63 kg some cardio Active 5x week resistance cardio Table 2 Wingate Results Peak anaerobic Relative peak Mean Relative Lowest Decrease power anaerobic anaerobic mean anaerobic in power power power anaerobic power output power P 338 69 watts 5 4 watts kg 253 8 4 05 169 2 50 04 1 P 400 68 watts 6 3 watts kg watts 305 28 watts kg 4 8 watts 228 96 42 86 watts watts kg watts 2 Calculation for peak anaerobic power force distance time resistance highest peak revs 6 meters rev 5 seconds Answer is in kg m sec Multiply by 60 sec min to get kg m min Convert answer to watts 1 watt 6 kg m min P1 4 70 kg 6 revs 6 meters revolution 5 seconds 33 87 kg m sec 60 sec min 2032 13 kg m min 338 69 watts P2 4 77 7 revs 6 meters rev 5 seconds 40 07 kg m sec 60 sec min 2404 08 kg m min 400 68 watts Calculation for relative peak anaerobic power watts weight in kg P1 338 69 watts 62 72 kg 5 4 watts kg P2 400 68 watts 63 63 kg 6 3 watts kg Calculation for mean anaerobic power force distance time Resistance total revs 6 meters rev 30 seconds Multiply by 60 sec min to get kg m min Convert answer to watts 1 watt 6 kg m min P1 4 70 kg 27 6 meter rev 30 seconds 25 38 kg m sec 60 sec min 1522 8 Kg m min 6 kg m min 1 watt 253 8 watts P2 4 77 kg 32 6 meters rev 30 seconds 30 528 kg m sec 60 sec min 1831 68 kg m min 6 kg m min 1 watt 305 28 watts Calculation for relative mean anaerobic power mean anaerobic power weight in kg P1 253 8 watts 62 72 kg 4 05 watts kg P2 305 28 watts 63 63 kg 4 8 watts kg Calculation for lowest anaerobic power force distance time resistance lowest number of revs 6 meters rev 5 seconds Multiply by 60 sec min to get kg m min Convert answer to watts 1 watt 6 kg m min P1 4 70 kg 3 6 meters rev 5 seconds 16 92 kg m sec 60 sec min 1015 2 kg m min 6 kg m min 1 watt 169 2 watts P2 4 77 kg 4 6 meters rev 5 seconds 22 896 kg m sec 60 sec min 1373 76 kg m min 6 kg m min 1 watt 228 96 watts Calculation for decrease in power output peak power output lowest power output peak power output 100 P1 338 69 watts 169 2 watts 338 69 watts 100 50 04 P2 400 68 watts 228 96 watts 400 68 watts 100 42 86 Table 3 Cardiovascular Response P1 P2 2 min pre exercise heart 10 sec pre exercise heart rate Post exercise heart rate 92 88 101 85 rate 189 183 Discussion From the results I can infer that participant 2 was more anaerobically fit than participant 1 Participant 2 had lower decrease in power output throughout the Wingate test 42 86 as compared to participant 1 50 04 Participant 2 also had higher relative peak anaerobic power and relative mean anaerobic power than participant 1 Relative power means the amount of power expended per kilogram that a person weighs Participant 1 s relative peak anaerobic power was 5 4 watts kg and their relative mean anaerobic power was 4 05 watts kg Participant 2 s relative peak anaerobic power was 6 3 watts kg and their relative mean anaerobic power was 4 8 watts kg These values don t follow the same trend as the raw power values because raw power values add up the total power produced by the whole body not just per kilogram Their training statuses influenced the results because even though both were considered active both exercise at least 5x week participant 2 performed more resistance training and anaerobic activities than participant 1 Physiological adaptations to anaerobic exercise include an improved bioergetic capacity and a larger percentage of type I muscle fibers These adaptations would improve performance on the Wingate test Bioergetic capacity is the ability to utilize oxygen when beginning an exercise Being able to use more oxygen when beginning an exercise will allow for you body to produce more ATP This increase in bioergetic capacity could be due to increased muscular strength and cardiovascular adaptations and will reduce the amount of lactic acid produced in the muscles Type I fast twitch muscle fibers are associated with anaerobic exercise and training will increase the percentage of these types of muscle fibers They produce high force quick movements but are quickly fatigable Participant 2 was more adept to anaerobic exercise because of their training and likely had a larger bioergetic capacity and a higher percentage of type I muscle fibers Participant 1 is more likely to have a higher percentage of type II muscle fibers as this is an adaptation to aerobic training Despite training adaptations lactate will form during exercise no matter what Lactate is the cause for fatigue during exercise and soreness afterwards Once the blood lactate concentration reaches a certain point the participant can t exercise any longer and the lactate needs to be removed from the blood before they can start exercising again If blood lactate concentration had been measured during the test I would expect to observe the highest concentration during the last few seconds of the test This was the time when the participants were their most fatigued and had their lowest anaerobic power They wouldn t have been able to exercise at their hardest intensity for much longer than the 30 seconds they performed before they were completely fatigued This can be shown by the number of revolutions that each participant provided in the last five seconds of the test participant 1 3 revolutions participant 2 4 revolutions It was the lowest number of revolutions of any of the five second intervals throughout the …


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