DATA COLLECTION: ISOTONIC STRENGTH
FORM 2.1
STUDENT NAME:_____shaylee gerber________________________
DATE:____9/10/13_______
Subject Name: _____haily hile________________
Age: _19______
M/F:_F__
Direct Measurement of Bench Press 1-RM:
Trial 1
Trial 2
Trial 3
Trial 4
Trial 5
Mean
11.33 kg.
24.94 kg.
31.75 kg.
kg.
kg.
kg.
Calculation of Bench Press Power (Watts):
70/1.22=57watts
Indirect Estimation of Bench Press 1-RM:
60
From Table 4.3
22.2kg
From Equations:
Direct Measurement of Leg Press 1-RM:
Trial 1
Trial 2
Trial 3
Trial 4
Trial 5
Mean
52.16 kg.
58.96 kg.
61.23 kg.
kg.
kg.
kg.
Calculation of Leg Press Power (Watts):
135/1.47=91.83watts
Indirect Estimation of Leg Press 1-RM:
140
From Equations:
DATA
COLLECTION:
ISOMETRIC
STRENGTH
FORM 2.2
Grip Strength
Measurement
Dominant hand:
Seated
Standing
Trial
#1
30kg
25kg
Trial
#2
25kg
23kg
Trial
#3
22kg
20kg
Best
Score
30kg
Trial
#3
21kg
21kg
Best
Score
21kg
21kg
Non-dominant hand:
STUDENT NAME shaylee
gerber___________________
DATE:9/10/13________
Subject Name: ______Haily
hile___________________ Age:
___21_____ M/F:__F__
Seated
Standing
Trial
#1
20kg
20kg
Trial
#2
19kg
15kg
LABORATORY REPORT 2
Measurement of Isotonic Strength & Power, Isometric Strength
NAME: shaylee Gerber
SECTION I: INTRODUCTION (5 points)
Should include: overview of this lab (not including results an analysis), purpose of lab,
importance of this lab, definitions of important terms and concepts used in this lab.
- Measurement of Isotonic and Isometric strength was about muscle strength using a
bench press. Leg press, as well as grip strength test. This was a test of a one rep max to
find the amount of weight you can lift in the leg and bench press. The grip strength
test was done using the best score of three. Finding the value of hand grip strength.
The purpose of this lab was to see the amount of strength you can lift at your
maximum weight.
SECTION II: REVIEW OF LITERATURE (10 points)
Include a summary of an article from a peer-reviewed journal which deals with the topic
of the laboratory (in this case, measurement, validity, reliability of laboratory
measurements, sources of error). Be sure to make reference to your source in AMA
format and be sure to relate it to this laboratory exercise.
To determine the reliability of Isotonic (1RM) strength measures of the triceps muscle on the
non-dominate arm and its correlation with isokinetic and isometric strength measures.
Measurements: Isotonic strength (kg) was measured using a 1 RM during a triceps press
down exercise on a Universal Gym weight stack. The isokinetic and isometric tests measured
triceps force (N) using a Biodex System 3. The isokinetic test required the subjects to
maximally contract the biceps and triceps concentrically through a full range of motion ([is
greater than or equal to] 120 [degrees]) for 3 repetitions. Isokinetic, and Isometric measures
of maximal triceps strength appear to be reliable but not interchangeable. It appears that the
three methods measure different aspects of maximal strength. The moderate correlation of
isokinetic and isometric peak torque may be because isokinetic peak torque occurred near the
position of isometric testing.
SECTION III: METHODS (5 points)
Include characteristics of your subject (gender, age, overall health and fitness level). This
section represents a “cookbook” of exactly what you did (past tense is used). It should
include the equipment/instruments used, and the procedure you used to obtain your
measurements (although it SHOULD NOT include the actual results). It should also
include any arithmetic procedures you did (e.g. averaging three scores).
- My subject was a twenty one year old female in good health and fitness level. In the
first test was the bench press test. This was a 1 rep max test trying to find the
maximum amount of weight you can lift. This was done using the machine chest press.
The procedure used to find this was a test of the amount of weight you can move until
you can only lift it one time. This was an average of three scores. The leg press was
done using the machine leg press. This was taken over an average of three times. The
last rep that the subject lifted was also timed to see how long it took to lift the weight
in both the bench and leg press. An Indirect estimation of the bench press and leg
press using the 1 rep max was also done using the provided tables. The grip strength
test was done using dynamometer. This test was done over best of three tries. The test
was done sitting as well as standing, in both dominate and non-dominate hands to be
able to compare the difference.
SECTION IV: RESULTS (5 points)
Simply report your results here – there is no analysis or interpretation in this section.
You simply report what your measurements were. Graphs, when required, should be
included in this section. Include any reporting forms (e.g. Form 1.1) in this section.
- For the bench press test the subjects result was a one rep max of 70 pounds or 31.75kg
in one minutes and twenty two seconds. The indirect estimation of the bench press
test was 60. From the equation of the indirect estimation was 22.2kg. The bench press
power was also determined a found to be 57 watts. The leg press test results was a one
rep max of 135 pounds or 61.23 kg in one minutes and forty seven seconds. The indirect
estimation of the leg press equation was 140kg. The leg press power was found to be
91.8 watts. The grip test results in the dominate hand seated was 30kg and standing
was 25kg. The non-dominate hand seated was 21kg and standing was 21kg.
SECTION V: DISCUSSION/ANALYSIS (10 points)
Here’s where you get to discuss WHY you got the results that you did. What are some
possible explanations for the results that you obtained? Did your results reflect the
changes you would expect to see? Why would you expect the changes to occur in a
particular way?
- In the bench press I got the results I did because my subject had an idea of the amount
of weight she could lift and tested the amount until she reached an amount that she
could only do once. Possible reasoning for the amount of weight she lift could be that
she warmed up and then tested other weights so she only reached the weight of 70
pounds or 31.75 kg. I would have expected her to lift more weight since it took her no
time at all to lift that amount. The changes could have been changed if she had started
at the 70 pounds she might have lifted more. In the leg press she only lift 135 pounds of
61.23kg she tried this lift three times being down the amount of weight she might have
been able to lift. My subjected also warmed up in this test and practiced differing the
amount of weight she might have been able to lift. Both of these test could have been
error of effected due to the warm up, and practiced lifts before we found the one rep
max. The hand grip test was a best of three scores standing and sitting using both
hands I would say I got different results between standing and sitting due to stability.
One was more stable than the other making it easier to squeeze the dynamometer.
Using both hands let us see the difference in dominate and non-dominate hand. This
showed witch was dominate and non-dominate in the test and allowed us to compare.
I think the test came out the way I expected it to.
SECTION VI: CONCLUSIONS/IMPLICATIONS (5 points)
Summarize (not just repeat) your findings and conclusions here. What are the practical
uses of your findings, i.e. how can others use what you found in this study? Did your
findings here give you ideas for further research in a related topic?
- My findings were that over three times her bench press test was 70 pounds or 31.75kg
was her one rep mas and her leg press was 135 pounds or 61.23 kg. Both of these
weights could have been effected by the warm up and the practice runs before trying
to max weight. So there is a margin of error. The grip test was done by dominate and
non-dominate hands, in sitting and standing positions, over the three tries. Both of the
non-dominate hand test equaled 21kg standing and sitting and then in the dominate
hand sitting was 30kg and standing was 25kg. The use of this lab would be beneficial
for getting stronger or compare and contrast over an amount of time. It could also be
used to train and met a new goal.
REFERENCE:
Cite the reference you used in Section II in AMA format. An example follows here:
Rubley MD. Reliability And Correlation Of Maximal Isotonic (1 RM), Isokinetic, And
Isometric Strength Measures Of The Triceps. Journal of Athletic Training. April-June, 2001.
Available at Vol.36 (2), p.S-104. Accessed September 20,2013
SAVE YOUR COMPLETED REPORT AS A WORD DOCUMENT WITH
THE FOLLOWING NAME:
YOURLASTNAMELABREPORT1
For example, mine would be Huntingtonlabreport1
Place your completed report in the Laboratory 1 dropbox by the deadline.