Read this article to answer the following questions: https://elearning.uh.edu/bb
ID: 3229193 • Letter: R
Question
Read this article to answer the following questions:
https://elearning.uh.edu/bbcswebdav/pid-3679043-dt-content-rid-25457437_1/courses/H_20171_KIN_4310_11819/Mandroukas_2014_acute_partial%281%29.pdf
This is a recently published scientific article from the Journal of Sports Medicine and Physical Fitness.
-TRUE OR FALSE: This is a cross-sectional study.
-How many subjects were enrolled in the study?
-Which hypothesis test did the authors use?
One sample z-Test
One-way ANOVA
Two-way ANOVA
Independent t-Test
Dependent t-Test
What was the level of significance used in the study?
0.05
0.01
0.10
0.20
What was used to measure range of motion in this study?
A goniometer
An isokinetic dynamometer
A thermometer
A paired t-Test
A stadiometer
Which of the following descriptive statistics were used in the report? (Check every answer that is correct.)
25th and 75th percentile
Standard deviation
Mean
Kurtosis
Median
TRUE OR FALSE: Passive stretching only affected the quadriceps and hamstrings torque at high velocity
TRUE OR FALSE: Participants warmed up before the strength measurements by pedaling on a stationary bike for 5 minutes.
TRUE OR FALSE: When the article reports that P < 0.05, this indicates a statistically significant result.
A.One sample z-Test
B.One-way ANOVA
C.Two-way ANOVA
D.Independent t-Test
E.Dependent t-Test
Explanation / Answer
Sol::
Aim: The purpose of this study was to investigate the effects of partial passive stretching (PPS) on peak torque (PT) and joint range of motion (ROM) in healthy subjects.
Methods: Twenty-two males (mean age 20.4±1.0 yrs, height 181.1±4.2 cm and weight 75.8±6.8 kg) participated in the study. Quadriceps and hamstrings PT at different angular velocities was obtained on an isokinetic dynamometer. Standing leg method hop was tested for the stretched and unstretched leg. Each subject performed PPS for 20 seconds. The stretching procedure was repeated 5 times for each muscle group. The whole stretching program lasted for 6 minutes and 20 seconds followed by 5 seconds resting period.
Results: Directly after the stretching procedure significant increases were observed of PT in quadriceps and hamstrings, however, only at 300o.s¹ (P<0.05). Joint ROM was increased in all subjects (P<0.05). The distance in single length hop was increased significantly in the stretched leg following stretching (P<0.05). No changes were observed in the unstretched leg.
Conclusion: Our results indicated that the PPS altered ROM, maximal concentric isokinetic strength at high angle velocities and single length hop only for the stretched leg. These findings suggest that PPS may be an effective technique for enhancing muscle performance.
Solutions:
its a two way anova tested.
the effects of partial passive stretching (PPS) on peak torque (PT) and joint range of motion (ROM) in healthy subjects.
level of significance=0.05
An isokinetic dynamometer used
Twenty-two males (mean age 20.4±1.0 yrs, height 181.1±4.2 cm and weight 75.8±6.8 kg)
are confidence intervals calculated using mean and standard deviation and z or t critical
ANSWER
B,C,MEAN,STANDARD DEVIATION
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