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1.
J Sports Med Phys Fitness ; 54(2): 154-61, 2014 Apr.
Article in English | MEDLINE | ID: mdl-24509986

ABSTRACT

AIM: This study aimed at comparing the effects of intermittent and repeated sprint ability training on physiological variables. METHODS: Sixteen young female basketball players were randomly allocated to intermittent training (IT=8) or repeated sprint ability training (RST=8) groups. The following outcomes were measured at baseline and after 6 weeks of training: Yo-Yo intermittent recovery (Yo-Yo) and repeated sprint ability (RSA) tests. RESULTS: For all the variables investigated the effect of training type showed a different trend respect at current knowledge. In the RSA, best time (BT) was a significant main effect of training time (pre- vs. post-) (P<0.0001), and of the interaction training type/time (P=0.03). The RST showed a decrease in BT of 3.1% (P=0.005) while the IT showed a decrease of 6.2% (P<0.0001). In the IT there was a significant main effect of time for the total distance with an increment of 26.9%, and a significant main effect of time in the final speed with an increment of 1.23%. CONCLUSION: These findings suggest that the two training methods used in this study can be an effective training strategy for inducing anaerobic and basketball-specific training schedules. Besides, even when IT training is not done at very high speed, it can increase the maximum speed of the RSA.


Subject(s)
Athletic Performance/physiology , Basketball/physiology , Physical Education and Training , Adolescent , Female , Humans , Longitudinal Studies , Physical Endurance/physiology
2.
Int J Sports Med ; 34(3): 244-7, 2013 Mar.
Article in English | MEDLINE | ID: mdl-22972239

ABSTRACT

The present study investigated the effects of step frequency manipulation during training on slopes (2%) on biomechanical parameters at Iso-Efficiency Speed (without increasing the metabolic demand). 24 male marathon runners were randomly allocated to one of 2 training groups for 3 weeks: step frequency manipulation group (SFM, n=12) and free step frequency group (SFF, n=12). Lower limb kinematic parameters were measured before and after the 3 weeks training. The SFM group increased step length 4.30% (p<0.001), flight time 29.48% (p<0.001) and decreased contact time 14% (p<0.01). These findings coincide with characteristics of better running performances. The SFF group did not elicit such results. The results from the study could help coaches to devise training methods which could improve an athlete's performance through increasing step length. The method provided may aid faster race times for athletes.


Subject(s)
Running/physiology , Adult , Analysis of Variance , Athletic Performance/physiology , Biomechanical Phenomena , Exercise Test , Humans , Male , Single-Blind Method , Video Recording
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