scholarly journals Free-Weight Resistance Training in Youth Athletes: A Narrative Review

2020 ◽  
Vol 50 (9) ◽  
pp. 1567-1580
Author(s):  
Stephen J. McQuilliam ◽  
David R. Clark ◽  
Robert M. Erskine ◽  
Thomas E. Brownlee
Author(s):  
Madison Pearson ◽  
Amador García-Ramos ◽  
Matthew Morrison ◽  
Carlos Ramirez-Lopez ◽  
Nicholas Dalton-Barron ◽  
...  

Exercise velocity and relative velocity loss thresholds (VLTs) are commonly used in velocity-based resistance training. This study aims to quantify the between-day reliability of 10%, 20%, and 30% VLTs on kinetic and kinematic outputs, changes in external load, and repetition characteristics in well-trained athletes. Using a repeated, counter-balanced crossover design, twelve semi-professional athletes completed five sets of the back squat with an external load corresponding to a mean concentric velocity of ~0.70 m·s−1 and a VLT applied. The testing sessions were repeated after four weeks of unstructured training to assess the long-term reliability of each VLT. A coefficient of variation (CV) <10% was used to classify outputs as reliable. Kinetic and kinematic outputs and external load were largely reliable, with only peak power during sets 2–5 within the 10% VLT condition demonstrating a CV >10% (CV: 11.14–14.92%). Alternatively, the repetitions completed within each set showed large variation (CV: 18.92–67.49%). These findings demonstrate that by utilizing VLTs, kinetic and kinematic outputs can be prescribed and replicated across training mesocycles. Thus, for practitioners wishing to reliably control the kinetic and kinematic stimulus that is being applied to their athletes, it is advised that a velocity-based approach is used.


2016 ◽  
Vol 30 (10) ◽  
pp. 2682-2696 ◽  
Author(s):  
Mark A. South ◽  
Andrew S. Layne ◽  
Charles A. Stuart ◽  
N. Travis Triplett ◽  
Michael Ramsey ◽  
...  

2017 ◽  
Vol 31 (7) ◽  
pp. 2005-2010 ◽  
Author(s):  
Jonathon J.S. Weakley ◽  
Kevin Till ◽  
Joshua Darrall-Jones ◽  
Gregory A.B. Roe ◽  
Padraic J. Phibbs ◽  
...  

2005 ◽  
Vol 37 (Supplement) ◽  
pp. S186 ◽  
Author(s):  
Corey E. Anderson ◽  
Gary A. Sforzo ◽  
John A. Sigg

PeerJ ◽  
2020 ◽  
Vol 8 ◽  
pp. e10361
Author(s):  
Kevin Watson ◽  
Israel Halperin ◽  
Joan Aguilera-Castells ◽  
Antonio Dello Iacono

Background The aim of this study was to investigate if choice over resistance training exercise order affects motor performance and psychological outcomes among elite youth hockey players. Methods Seventeen elite hockey players (male, n = 14; female, n = 3, age: 15.1 ± 1.1 years) participated in this study. In the first session, individual optimum power loads were calculated in the back squat, jump squat, bench press and bench throw exercises. Then, in four counterbalanced sessions, participants completed three sets of six repetitions in the same exercises loaded with their optimum power loads. In two sessions, athletes used a self-selected order of exercises, while in other two sessions the order was predetermined. Power outputs were estimated with a linear position transducer. Fatigue and enjoyment were measured during and after the sessions using standardized questionnaires. Repeated measures analyses of variance and a paired-sample t-test were used to compare the effects between conditions. Results We observed trivial to small differences between conditions in power outputs (p ≥ 0.07; ES ≤ 0.21), fatigue (p ≥ 0.42; ES ≤ 0.33) and enjoyment (p = 0.72; ES = 0.05). Conclusion Given the comparable effects between approaches, both can be used when coaching youth athletes. Self-selecting the order of exercises based on preferences is a feasible and practical coaching option when working with youth athletes.


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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