Supervisors info:
1) Τσολάκης Χαρίλαος, Καθηγητής, ΣΕΦΑΑ, ΕΚΠΑ
2) Κουλουβάρης Παναγιώτης, Επίκουρος Καθηγητής, Ιατρική Σχολή, ΕΚΠΑ
3) Αργειτάκη Πολυξένη, Επίκουρη Καθηγήτρια , ΣΕΦΑΑ, ΕΚΠΑ
Summary:
Complex training is a combination of resistance and plyometric exercises with similar kinetic characteristics. The effect of complex training in maximal strength (1RM) Squat exercise, and maximal power via vertical jump (CMJ), has confirmed by many researchers. However, there is no research which studies the effect of complex training with added load in plyometric (jumping) exercises. 20 adult well trained CrossFit athletes (describe elements, age, height, weight, BMI) participated in this study. The subjects were firstly tested at maximal strength in Squat exercise (1RM), lower limb power via countermovement jump (CMJ), and then they were randomly separated in two groups. Both groups (experimental-EG and control-CG), practiced a complex training protocol, using Squat as main strength exercise, and countermovement jump (CMJ), squat jump (SJ), drop jump from several heights (DJ). EO subjects added a loaded vest 12% bodyweight at plyometric exercises. The complex training protocol was performed twice a week for 8 weeks, and was added in a CrossFit training routine which was performed 3 times a week, in separate days. Results did not show a significant statistic change at maximal strength 1RM Squat and vertical jump (CMJ) at both experimental and control group. ANOVA analysis (2x2) showed that there was not significant effect for experimental group (+5,3%) 1RM Squat (+4%) CMJ, whereas control group showed effects (+4,9%) and (1,9%). In conclusion, using added load in plyometrics, when practicing a complex training protocol at adult CrossFit athletes seem not to have significant effect at maximal strength (1RM) Squat and vertical jump (CMJ). The results show that if the specific aim is the improvement of these two different abilities (lower limb strength and power) at well trained CrossFit athletes, specific training exercises are needed, and not only CrossFit exercises that aim to develop a broad physical fitness level.
Keywords:
CrossFit, Complex training, Maximal trength, Vertical jump
