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Full-Text Articles in Kinesiology
Effect Of Seat Tube Angle And Exercise Intensity On Muscle Activity Patterns In Cyclists, Will Duggan, Bernard Donne, Neil Fleming
Effect Of Seat Tube Angle And Exercise Intensity On Muscle Activity Patterns In Cyclists, Will Duggan, Bernard Donne, Neil Fleming
International Journal of Exercise Science
International Journal of Exercise Science 10(8): 1145-1156, 2017. Previous studies have reported improved efficiency at steeper seat tube angle (STA) during ergometer cycling; however, neuromuscular mechanisms have yet to be fully determined. The current study investigated effects of STA on lower limb EMG activity at varying exercise intensities. Cyclists (n=11) were tested at 2 workloads; 160W and an individualised workload (IWL) equivalent to lactate threshold (TLac) minus 10%δ (derived from maximal incremental data), using 3 STA (70, 75 and 80°). Electromyographic data from Vastus Medialis (VM), Rectus Femoris (RF), Vastus Lateralis (VL) and Biceps Femoris (BF) were assessed. …
Recovery Of Hip And Back Muscle Fatigue Following A Back Extension Endurance Test, Sharon Wang-Price, Mohammad Almadan, Carissa Stoddard, Dustin Moore
Recovery Of Hip And Back Muscle Fatigue Following A Back Extension Endurance Test, Sharon Wang-Price, Mohammad Almadan, Carissa Stoddard, Dustin Moore
International Journal of Exercise Science
International Journal of Exercise Science 10(2): 213-224, 2017 Literature has not shown the minimum time required to recover from muscle fatigue after a prolonged trunk isometric contraction. The purpose of this study was to determine if the lumbar multifidus (LM) and gluteus maximus (GM) muscles would recover from fatigue after three different rest periods following performance of a back extension endurance test. Endurance time and electromyographic (EMG) activity of bilateral LM and GM muscles were collected from 12 healthy adults during a modified Biering-Sørensen test. On three separate visits, each participant performed two modified Biering-Sørensen tests, one before and one …