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Full-Text Articles in Medicine and Health Sciences
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 …
Assessing The Validity Of Several Heart Rate Monitors In Wearable Technology While Mountain Biking, Bryson Carrier, R. W. Salatto, Dustin W. Davis, Jacquelyn V.L. Sertic, Brenna Barrios, Peyton Cater, James W. Navalta
Assessing The Validity Of Several Heart Rate Monitors In Wearable Technology While Mountain Biking, Bryson Carrier, R. W. Salatto, Dustin W. Davis, Jacquelyn V.L. Sertic, Brenna Barrios, Peyton Cater, James W. Navalta
International Journal of Exercise Science: Conference Proceedings
The development of fitness trackers and other wearable technology designed for health and fitness purposes is growing in popularity and sophistication every day. These devices have the ability to measure or estimate a variety of physiological and physical variables, such as step count, energy expenditure, VO2max, lactate threshold, heart rate, stride length, vertical oscillation, ground contact time, blood oxygen saturation (via pulse oximetry), and many others. PURPOSE: In order to properly use these devices, independent validation needs to take place to determine the device’s accuracy and ability to properly measure or estimate each variable. Therefore, the purpose of this …