The aim of the present study was to find out the effect of varied plyometric training (land plyometric training, aqua plyometric training and weighted vest aqua-plyometric training) on anaerobic power of school athletes. A total of forty eight (n= 48) district level school athletes were randomly selected. All the subjects were divided into four equal groups: i) land plyometric training group (n=12), ii) aqua plyometric training group (n=12), iii) aqua-plyometric training with weighted vest group (n=12) and iv) control group (n=12). The varied plyometric training was intervened for fourteen weeks in the respective training groups. In the present study, anaerobic power was considered as the dependent variable, and it was measured by Margaria-Kalamen power test. To draw statistical inferences on anaerobic power among the groups in pre and post intervention conditions, ANCOVA was used, followed by Tukey’s LSD post-hoc test. The significance of the means was tested at the 0.05 level. Different plyometric training groups improved significantly with respect to the control group in anaerobic power. Therefore, various plyometric training was found as an effective means for developing anaerobic power. A significant difference was also observed between the aqua-plyometric training with weighted vest group and land plyometric training group in anaerobic power. However, rest of the experimental groups didn’t differ significantly. Aqua-plyometric training with weighted vest is a more effective training method than land plyometric training for improving the anaerobic power of the school athletes.

The purpose of the present study was to compare the effectiveness of Plyometric Training (PT) and Resistance Training (RT) for improving speed ability of the Athletes. Total thirty six (N = 36) district level athletes were randomly selected. All the subjects were divided into three equal groups: i) Resistance Training Group (RTG) as Experimental Group-I, ii) Plyometric Training Group (PTG) as Experimental Group-II and iii) Control Group (CG). Experimental group-I underwent resistance training whereas experimental group-II underwent plyometric training for eight weeks. But the control group did not involve in any of the above treatments. In the present study speed ability was measured through 60 yard dash. To draw the statistical inference analysis of covariance (ANCOVA) was used followed by Tukey’s LSD test as post hoc test. Both RTG and PTG improved significantly with respect to the CG in speed ability. Significant difference was also observed between RTG and PTG in speed ability. It was also confirmed that the PTG improved better than the RTG in speed ability. From the above findings it can be concluded that PT is more effective training means than RT to improve the speed ability of the athlete.

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Physical/motor fitness level of the hearing-impaired population have already attempted in previous studies where degree of hearing-loss of the subjects were not considered so far. Therefore, the aim of the study was to compare agility among children with different degree hearing-loss in India. Total of two-hundred-fifty-two (N=252, Boy=126 & Girls=126) hearing-impaired children (aged 13-20 years) were selected as subjects. Degree of Hearing-loss was measured by audiometric technique and divided into six different groups’ viz. Profound, Severe, Moderately-Severe, Moderate, Mild and Normal with twenty one subjects in each group for each sex. Agility was measured through 4×10 meter shuttle run test. 2-way-ANOVA followed by Tukey's test was used as necessary statistics. The significance was tested at p <.05 level. In agility, boys ware significantly better than the girls in all respect, when different hearing impaired groups were combined. Significant differences in agility among the different hearing impaired groups were observed except in few cases when both sexes were combined. No significant interaction between Sex and degree of hearing loss were observed. An increasing linear trend in agility was observed with decreasing degree of hearing Loss. Thus, an inverse relationship between agility and degree of hearing loss (dB HL) is observed.