Weightlifting training and tapering in male handball 2
BSTRACTThe purpose of this study was to assess the effect of short-term resistance training and two weeks of tapering on physical performances in handball players. Following a ten-week progressive resistance training program, subjects were divided between an experimental (n = 10) and a control group (n = 10). The experimental group completed a resistance training program, followed by a two-week period when the training intensity was tapered by 60%, while the control group maintained their typical pattern of training. Muscle power (force-velocity test and squat and counter-movement jump tests), sprinting ability (10m and 30m), ability to change direction (T-half test) and throwing velocity (a 3-step throw with a run, and a jump throw) were evaluated before training, at the end of training and after tapering. The experimental group showed significantly larger interaction effects for the 10-week training period (12/15, 80%), than for the following 2 weeks of tapering (10/15, 67%), with the largest gains being in 15 m sprint times (d=3.78) and maximal muscular strength in the snatch (d=3.48). Although the performance of the experimental group generally continued to increase over tapering, the mean effect size for the training period was markedly higher (d=1.92, range: 0.95-3.78) than that seen during tapering (d=1.02, range: -0.17-2.09). Nevertheless the ten weeks of progressive resistance training followed by two weeks of tapering was an effective overall tactic to increase muscle power, sprint performance and ball throwing velocity in handball players.Weightlifting training and tapering in male handball 3Compliance of the experimental group with the added training was high, each exercise session being completed with a high level of motivation and effort. The data demonstrated significant interaction effects (group x time) in 12 of 15 parameters for the 10-week intervention ( Table 2, figure 2 figure 3 figure 4 figure 5). The effect sizes were all larger than 0.90; the greatest gain was in 15 m sprint time (d=3.78), and the largest interaction effect was for the half squat (p<0.001, 2 =0.827). Three parameters (30 m sprint, squat jump height, and the relative power of lower limb) showed no significant interaction effects. Two relevant (d≥-0.5) decreases of performance (absolute power of lower limb: d=-0.86; snatch: d=-0.66) were seen in the control group (Table 2).The largest interaction effect: p<0.001, 2 =0.829) was for the running throw, and the largest further gain was for the 15 m sprint (d=2.09). On the other hand, we noted a reduction in scores for the agility t-half test (d=-0.17). Scores continued to increase during the tapering period, although based on effect sizes (Hartmann et al., 1992), increases were generally smaller than during the 10 week resistance training period (d TG1 =1.92vs. d TG2 =1.02).The performance of the control group generally remained stable over the period when the experimental group were tapering, with some trend to regres...