Effects of different movement frequencies on kinetics and RPE in moderate-intensity during squat exercise

• Main Authors: Su, Yu-Chun, 蘇裕鈞
• Other Authors: Chen, Wan-Chin
• Format: Others
• Language: zh-TW
• Published: 2019
• Online Access: http://ndltd.ncl.edu.tw/handle/75qys3

碩士 === 臺北市立大學 === 運動器材科技研究所 === 107 === Objective: compare the impulse, maximum reaction force, exercise time and perceived exertion when a person squats under three different motion frequencies and the moderate level is reached, so as to provide suggestions to office workers on how they should plan their schedule of exercise frequency. Method: ten healthy young men were recruited to perform maximal exercise test and rest heart rate test. After one week, they went through slow (2.5 seconds), moderate (2 seconds) or fast (1.5 seconds) squat frequency tests at random in three days. On the day they need to make squat moves repeatedly to reach 60% HRR to finish this whole test. The differences of impulse, maximum reaction force, exercise time, rating of perceived Exertion (RPE), and visual analog scale (VAS) when the moderate level of heart rate is reached under three different squat frequencies are compared using single factor repeated measures. Results: there were significant differences in impulse (SC:259.2 ± 135.4 BW．s、MC:192.3 ± 98.0 BW．s、FC:136.4 ± 106.8 BW．s), maximum reaction force (SC:1.28 ± 0.39 BW、MC:1.37 ± 0.37 BW、FC:1.5 ± 0.55 BW) and exercise time (SC:254.5 ± 141.7sec、MC:181.4 ± 81.8sec、FC:130.0 ± 110.1sec), but there was no significant difference in RPE (SC:13.2 ± 3.7、MC:12.5 ± 2.7、FC:13.0 ± 3.3) and VAS (SC:6.2 ± 3.1、MC:5.6 ± 1.4、FC:5.1 ± 2.4). Conclusions: The participants who squat in fast frequency could reach moderate exercise intensity in shorter time and have higher exercise loading.