원문정보
초록
영어
The purpose of this study was to investigate the difference in the number of repetitions and the change in electromyographic response during the maximum speed squat exercise according to the depth conditions and the maximum speed squat exercise according to the time of each depth. Ten men in their 20s were selected as subjects and the maximum speed squat was performed for one minute in three environmental conditions (ground, knee depth, waist depth). We found that the number of repetitions according to the depth of water showed a significant difference, and as a result of the post-mortem comparison, the number of repetitions was higher in the ground condition and the knee depth than in the waist depth. And the muscle activity of rectus abdominis, erector spinae, rectus femoris, biceps femoris was increased during ground squat exercise, activity of all muscle was decreased during knee depth squat exercise, and activity of rectus abdominis, erector spinae, biceps femoris, tibialis anterior, gastrocnemius was decreased during waist depth squat. In conclusion, muscle activity of lower extremities during squat exercise in underwater environment can be lowered as the depth of water is deep due to buoyancy, but muscle activity of trunk muscles can be increased rather due to the effect of viscosity and drag.
목차
1. Introduction
2. Experiment Materials and Methods
2.1 Subject
2.2 Study Design
2.3 Squat Exercise Method
2.4 EMG Measurement
2.5 Statistical Analysis
3. Result
3.1 Differences in the Number of Repetition according to the Depth
3.2 Changes in Muscle Activity by Time during Ground Squat Exercise
3.3 Changes in Muscle Activity by Time during Knee Depth Squat Exercise
3.4 Changes in Muscle Activity by Time during Waist Depth Squat Exercise
4. Discussion
5. Conclusion
Acknowledgement
References