The Effect of Variable Resistance and Free-Weight Training Programs on Strength and Vertical Jump

Author(s):  
L. Jay Silvester ◽  
G. Rex Bryce
1983 ◽  
Vol 56 (3) ◽  
pp. 919-922 ◽  
Author(s):  
H. Thomas Ford ◽  
John R. Puckett ◽  
James P. Drummond ◽  
Kenneth Sawyer ◽  
Kyle Gantt ◽  
...  

To determine the effects of prescribed training programs on 5 physical fitness test items, each of 50 high school boys participated for 10 wk. in one of three programs (wrestling, softball, and plyometrics; weight training; and weight training and plyometrics). (a) On the sit-ups, 40-yd. dash, vertical jump, and pull-ups, each group improved significantly from pre-to posttest, (b) On the shuttle run, none of the groups improved significantly from pre- to posttest, (c) On the vertical jump, groups had a significant effect, but the interaction was nonsignificant. No effects were significant.


1992 ◽  
Vol 6 (2) ◽  
pp. 92-95 ◽  
Author(s):  
David McGee ◽  
T. Christopher Jessee ◽  
Michael H. Stone ◽  
Daniel Blessing

2014 ◽  
Vol 3 ◽  
pp. 30.25.CP.3.2
Author(s):  
Eduardo A. Abade ◽  
Bruno V. Gonçalves ◽  
José M. Vilaça ◽  
Jaime E. Sampaio

1983 ◽  
Vol 54 (1) ◽  
pp. 5-10 ◽  
Author(s):  
David Clutch ◽  
Mike Wilton ◽  
Carl McGown ◽  
G. Rex Bryce

2011 ◽  
Vol 6 (4) ◽  
pp. 509-524 ◽  
Author(s):  
Gal Ziv ◽  
Ronnie Lidor

The soccer goalkeeper (GK) is required to perform strenuous actions during practice sessions and actual games. One of the objectives of those professionals who work with GKs is to obtain relevant information on physical characteristics and physiological attributes of GKs, and to use it effectively when planning training programs for them. This article has three purposes: (a) to review a series of studies (n = 23) on physical characteristics, physiological attributes, and on-field performances of soccer GKs; (b) to outline a number of methodological limitations and research concerns associated with these studies; and (c) to suggest several practical recommendations for soccer coaches who work with GKs. Four main fndings emerged from our review: (a) professional adult GKs usually are over 180 cm tall and have a body mass of over 77 kg; (b) studies on agility and speed produced mixed results, with some showing similar values between GKs and field players and others showing reduced performance in GKs; (c) GKs usually have higher vertical jump values when compared with players playing the various field positions; (d) GKs cover approximately 5.5 km during a game, mostly by walking and jogging. Four methodological limitations and research concerns associated with the reviewed studies were discussed, among them the lack of a longitudinal approach and the lack of on-field performance studies. Three practical recommendations are made for coaches, one of which is that coaches should adopt a careful approach when selecting testing protocols and devices for the assessment of GKs’ physiological attributes.


2020 ◽  
Vol 9 (1) ◽  
Author(s):  
Amir Bahram Kashiani ◽  
Soh Kim Geok

Several studies have shown a positive association between variable resistance training and improvement of muscular performance. However, the most effective type of variable resistance training to improve muscular performance (such as; strength and endurance) in untrained individuals remains unclear. The objective of this research was to examine the effects of 12 weeks combined weight and chain versus combined weight and elastic band variable resistance training on muscular strength and endurance among untrained male adults. Fifty healthy untrained males (age: 21.5 ± 1.95 years) were randomly selected and assigned into three groups: combined weight and chain (WC), combined weight and elastic band (WE), and free-weight (CG). From week 1 until week 12 all groups trained with 3 to 4 sets of 8 - 12 repetitions with 70% to 80% of 1RM for 2 days per week. Approximately 65% of the resistance was provided by free-weights and 35% of the resistance was provided by chains and elastic bands for the WC and WE groups. Upper and lower body muscular strength and endurance using one-repetition maximum, and maximum repetitions were measured before, in the middle and after the intervention. Results reported there were significant increases in upper and lower body muscular strength and endurance in all groups in the middle and after the intervention (p < 0.05), and these variables increased more and faster significantly in WC and WE groups compared with CG group. Finally, although in the middle and after the intervention there were not significant differences in upper and lower body muscular strength and endurance between WE and WC groups (p > 0.05), the results showed WE variable resistance training had a better effect insignificantly to improve upper and lower body muscular strength and endurance in the middle and after 12 weeks of variable resistance training among untrained males.


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