CAJ | 학술논문

目的：比较不同方式仰卧起坐腰腹部肌肉表面肌电信号，寻求不同健腹器锻炼效果的实证。方法：11名男性大学生分别在传统仰卧起坐、Ab Rocket （Roc1和 Roc2）、Ab King （King1、King2、King3）等不同方式下以不同的频率（20次／min、30次／min、40次／min）进行运动，对其上腹直肌、下腹直肌、腹外斜肌、竖脊肌等肌肉表面肌电信号 RM S值进行比较分析。结果：Ab King健腹器（King2和King3模式）上腹直肌RMS值显著高于传统仰卧起坐时上腹直肌RMS值（ P＜0．05）；传统仰卧起坐下腹直肌RMS值显著高于Ab Rocket健腹器（ P＜0．05），与 Ab King健腹器间未见显著性差异（ P＞0．05）；传统仰卧起坐腹外斜肌 RMS值显著高于其余各种运动方式（P＜0．05）；Ab Rocket（Roc2）竖脊肌RMS值显著高于其他各种方式（P＜0．05）。结论：1）在进行仰卧起坐时，频率越高，腹直肌、腹外斜肌、竖脊肌表面肌电均方根振幅 RMS值越大，肌肉活动越激烈；2）Ab King健腹器与传统仰卧起坐相比，对腹直肌的刺激显著更强，但对腹外斜肌的刺激弱，适合以加强腹部肌肉为目的的一般健身者使用；3）Ab Rocket健腹器当至少两对助力弹簧进行助力时，与传统仰卧起坐相比，对竖脊肌的刺激强，适于超重患者、腰腹部肌肉虚弱的健身者使用。
목적：비교불동방식앙와기좌요복부기육표면기전신호，심구불동건복기단련효과적실증。방법：11명남성대학생분별재전통앙와기좌、Ab Rocket （Roc1화 Roc2）、Ab King （King1、King2、King3）등불동방식하이불동적빈솔（20차／min、30차／min、40차／min）진행운동，대기상복직기、하복직기、복외사기、수척기등기육표면기전신호 RM S치진행비교분석。결과：Ab King건복기（King2화King3모식）상복직기RMS치현저고우전통앙와기좌시상복직기RMS치（ P＜0．05）；전통앙와기좌하복직기RMS치현저고우Ab Rocket건복기（ P＜0．05），여 Ab King건복기간미견현저성차이（ P＞0．05）；전통앙와기좌복외사기 RMS치현저고우기여각충운동방식（P＜0．05）；Ab Rocket（Roc2）수척기RMS치현저고우기타각충방식（P＜0．05）。결론：1）재진행앙와기좌시，빈솔월고，복직기、복외사기、수척기표면기전균방근진폭 RMS치월대，기육활동월격렬；2）Ab King건복기여전통앙와기좌상비，대복직기적자격현저경강，단대복외사기적자격약，괄합이가강복부기육위목적적일반건신자사용；3）Ab Rocket건복기당지소량대조력탄황진행조력시，여전통앙와기좌상비，대수척기적자격강，괄우초중환자、요복부기육허약적건신자사용。
Objective :The aim of this study was to compare abdominal muscles surface EMG sig‐nals from different forms of sit‐ups with the purpose of seeking more evidence for the effect of exercise .Methods :A total of 11 male college students were recruited to finish the exercise of traditional sit‐up ,Ab Rocket (Roc 1 & Roc 2) and Ab King (King1 ,King2 & King3) sepa‐rately .RMS values of upper rectus abdominis ,lower rectus abdominis ,external oblique abdomi‐nis and erector spine muscles were analyzed under the frequency of 20 repeats/min ,30 re‐peats/min and 40 repeats/min .Results :Firstly ,RMS value of upper rectus abdominis in Ab King 2 and Ab King3 were significantly higher than traditional sit‐ups (P<0 .05);Secondly , RMS values of lower rectus abdominis in traditional sit‐ups was significantly higher than Ab Rocket (P<0 .05) ,but almost same to Ab King ;Thirdly ,RMS value of external oblique ab‐dominis in traditional sit‐ups was significantly higher than Ab Rocket and Ab King separately (P< 0 .05);Finally ,RMS value of erector spine muscles in Ab Rocket 2 was the highest a‐mong all sit‐ups forms ( P< 0 .05 ) .Conclusions :1 ) Higher frequency induced higher RMS values among all muscles in different sit‐ups forms ;2 ) Rectus abdominis ,not external oblique abdominis ,were more sensitive for the stimulate in Ab King than traditional sit‐ups ,so that it’ s suitable for the common body builder ;3) Two more auxiliary springs in Ab Rocket will gen‐erate more stimulates for erector spine muscles than traditional sit‐ups ,therefore ,it was suit‐able for the people with overweight or weak muscle strength .