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Full-Text Articles in Health and Physical Education
Electromyographic Analysis Of The Vastus Lateralis And Vastus Medialis Muscles Among Different Crank Lengths In Cycling, Jackson C. Crovella, Karoline M. Wucherer, Joy He, Christiane R. O'Hara
Electromyographic Analysis Of The Vastus Lateralis And Vastus Medialis Muscles Among Different Crank Lengths In Cycling, Jackson C. Crovella, Karoline M. Wucherer, Joy He, Christiane R. O'Hara
International Journal of Exercise Science: Conference Proceedings
Crank length (CL) on a bicycle may influence the total activation and period of activation of the leg muscles. Differences in total muscular activation suggest that CL may alter muscular fatigue. Differences in muscular onset and offset suggest that CL may shift muscle activation periods across a 360 degree crank cycle. PURPOSE: To examine the effects of four different CL (155, 165, 175, and 185 mm) on muscular activation of vastus lateralis (VL) and vastus medialis (VM). METHODS: Nine non-cyclists (6M, 3F, aged 18-55) participated in a single blind randomized cross-over experiment with four CL. Delsys EMG sensors …
Electromyographic Examination Of Hip And Knee Extension Hex Bar Exercises Varied By Starting Knee And Torso Angles, Meghan Mccauley, Jennifer Rivera, Whitney D. Leyva, Kalin A. Tomlinson, Kevin A. Valenzuela, Elisabeth Zeitz, Edward Jo Dr.
Electromyographic Examination Of Hip And Knee Extension Hex Bar Exercises Varied By Starting Knee And Torso Angles, Meghan Mccauley, Jennifer Rivera, Whitney D. Leyva, Kalin A. Tomlinson, Kevin A. Valenzuela, Elisabeth Zeitz, Edward Jo Dr.
International Journal of Exercise Science: Conference Proceedings
Variations of the deadlift can be executed using the hexagonal (hex) bar by altering, for instance, the knee and torso angles while maintaining a constant hip angle at the start position. PURPOSE: To examine muscle activation patterns of the biceps femoris, rectus femoris, and erector spinae during three deadlift variations using the hex bar. METHODS: Twenty resistance-trained male and female subjects performed hex bar deadlift variations in three different starting knee flexion positions: 128.4 ± 8.5° (elevated Romanian Deadlift), 111.9 ± 8.7° (conventional elevated deadlift), and 98.3 ± 6.5° (conventional hexagonal bar deadlift). Subjects performed three repetitions at …
Examining The Effect Of Partial-Range Of Motion Bench Press Exercise On Metabolic Work, Regional Myoelectrical Amplitude, And Local Muscle Hyperemia: A Pilot Study., Jacob D. Fanno, Ian Powell, Cole Hambric, Daniel Newmire
Examining The Effect Of Partial-Range Of Motion Bench Press Exercise On Metabolic Work, Regional Myoelectrical Amplitude, And Local Muscle Hyperemia: A Pilot Study., Jacob D. Fanno, Ian Powell, Cole Hambric, Daniel Newmire
International Journal of Exercise Science: Conference Proceedings
Traditionally, it is recommended to utilize a full-range of motion (fROM) during resistance training; however, recent data has found that using a partial-range of motion (pROM) may elicit similar hypertrophy and strength gains. Further research is required to assess the acute physiological differences of pROM in comparison to traditional fROM during a resistance exercise bout. PURPOSE: The purpose of this pilot study is to observe the metabolic work, myoelectrical amplitude, and muscle hyperemia during and following bouts of both flat and incline barbell bench press exercises with differing ranges of motion. METHODS: One male subject (21.6y; 168cm; 83kg; …