This course is designed to help the coach understand the relationship between research and the practice of coaching. It introduces basic research methods, including qualitative, quantitative, and applied research methods, as they pertain to the active coach. The materials in the course will provide an understanding of research to develop your own philosophy and practice of coaching. This course will help you become better equipped to find, read, and interpret research for sports studies.
By far, this was the hardest and most challenging class that I had over the past 2 years. As part of our research, we were required to do a bibliography on 4 articles that would pertain to our research project.
Would the effects of a Plyometric Training Program differ between youth males and youth females?
Lloyd, R. S., Oliver, J. L., Hughes, M. G., and Williams, C. A. (2012). The Effects Of 4-Weeks Of Plyometric Training On Reactive Strength Index And Leg Stiffness InMale Youths. Journal of Strength and Conditioning Research. 26(10): pgs. 2812–2819
The Lloyd, Oliver, Hughes and Williams’ article identifies the effects of a 4-week plyometric training on Reactive Strength Index (RSI) and Leg Stiffness in Male Youths. They studied 129 boys from 3 different age groups (9, 12 and 15 years) and then divided them into either an experimental or control group within their perspective ages. The Experimental group met twice a week for 4 weeks performing a variety of plyometric exercises. The Control group participated in their normal school physical education class. Pre-intervention and Post-intervention measure were collected for RSI (during maximal hopping) and Leg Stiffness (during submaximal hopping). The study concluded that improvements in RSI and Leg Stiffness after a 4-week plyometric training program are age dependent during childhood.
Nitzsche, N., Stutzig, N., Walther, A., and Siebert, T. (2015). Effects of PlyometricTraining on Rock’n’Roll Performance. International Journal of Kinesiology & SportsScience. 3(4): pgs. 8-15.
Nitzsche, Stutzig, Walther and Siebert’s article analyzed to see if plyometric training increases the sport specific performance in Rock’n’Roll dancers. 3 Males and 12 Females between the ages of 14 – 20 years participated in this study. Pre-and Post-tests were conducted to document alterations of sport specific performance, reactive strength as well as maximal isokinetic torque. The participants attended two training sessions weekly over a 6-week period. Jumping height and ground contact time (GCT) during drop jump was determined to calculate reactive strength (RSI). The study proved that Plyometric training helped increases the kicking frequency during a Rock’n’Roll dance.
Ebben, W. P., and Petushek, E. J. (2010). Using The Reactive Strength Index ModifiedTo Evaluate Plyometric Performance. Journal of Strength & Conditioning Research.24(8): pgs. 1983-1987.
Ebben and Petushek’s article talked about a modification of the Reactive Strength Index (RSI) that can be used to evaluate the explosive power of any vertical plyometric exercise. This study also assessed the reliability of the RSI, evaluated the RSI of a variety of plyometric exercises, and examines gender differences.Twenty-six men and 23 women served as subjects. Subjects performed 3 repetitions for each of 5 plyometric exercises including the countermovement jump (CMJ), tuck jump, single-leg jump, squat jump, and dumbbell CMJ. Results of pairwise comparisons indicate that the RSI is statistically different between all plyometric exercises studied.
Dalleau, G., Belli, A., Viale, F., Lacour, J., and Bourdin, M. (2004). A Simple Methodfor Field Measurements of Leg Stiffness in Hopping. International Journal of SportsMedicine. 25(3): pgs. 170-176.
Dalleau, Belli, Viale, Lacour and Bourdin’s article discussed a new method to measure leg stiffness in hopping and bouncing with simple technical equipment and under certain field conditions. Leg Stiffness was calculated from only contact and flight times measured with a contact mat. Their eight subjects, 7 men and 1 woman, performed a warm-up by skipping intermittently for 10 minutes. After completing warming up, they accustomed themselves to hopping at different frequencies. The study was carried out in two sessions.The first session performed submaximal hopping at different frequencies and the second session focused on maximal hopping. It was concluded that the new method could be applied to study extensively intra- and inter-individuals variations of leg stiffness in respectively sub-maximal and maximal hopping.