scholarly journals A comparison between predetermined and self-selected approaches in resistance training: effects on power performance and psychological outcomes among elite youth athletes

PeerJ ◽  
2020 ◽  
Vol 8 ◽  
pp. e10361
Author(s):  
Kevin Watson ◽  
Israel Halperin ◽  
Joan Aguilera-Castells ◽  
Antonio Dello Iacono
Keyword(s):  
Resistance Training ◽  
Repeated Measures ◽  
Psychological Outcomes ◽  
Power Performance ◽  
Squat Jump ◽  
Youth Athletes ◽  
Back Squat ◽  
Resistance Training Exercise ◽  
Hockey Players ◽  
Power Outputs

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.

scholarly journals The effect of different priming activities performed 24 hours prior to competition

2020 ◽  
Vol 9 (2) ◽  
pp. 79-89
Author(s):  
Jacopo Terenzi ◽  
Jeremy Moody
Keyword(s):  
Resistance Training ◽  
Lower Body ◽  
Strength And Conditioning ◽  
Subsequent Performance ◽  
Back Squat ◽  
Hockey Players ◽  
Body Resistance ◽  
Experimental Trials ◽  
Strength And Conditioning Coach ◽  
Priming Activity

The purpose of this study was to examine if performing a lower body resistance training priming activity effects athletic performance completed 24 hours later. University level field hockey players (N = 10) completed 1 control (CON) and 2 experimental trials on separate days. A randomised, counter-balanced experimental design with cross-over was used across three conditions. The CON trial consisted of complete abstention from physical activity. For the ‘strength’ (STR) experimental trial participants performed a parallel back squat exercise for 5 sets of 2 repetitions with 90% 1RM; while for the ‘hypertrophy’ (HYP) experimental approach was 3 sets of 10 repetitions with 75% 1RM. Subjects attended a testing session 24 hours after each trial, consisting of CMJ, SJ, 22-cm DJ, 38-cm DJ and 40 m sprint. The 5 m sprint performance was significantly better (p < 0.05) for CON group when compared to the HYP group. No other significant differences were highlighted between trials. The results indicate that performing resistance training in-line with STR and HYP the day before competition does not improve athletes’ performance. The results also suggest how a lower body STR priming activity can be implemented the day before competition without negatively impact subsequent performance. For the strength and conditioning coach, this may be a useful window to train athletes during the ‘in-season’ schedule.

scholarly journals Resistance Training Reduces Age- and Geography-Related Physical Function Discrepancies in Older Adults

2021 ◽  
Vol 7 ◽  
pp. 233372142199225
Author(s):  
Breanne S. Baker ◽  
Kristin Miller ◽  
Kelsey J. Weitzel ◽  
Dana L. Duren ◽  
Robin Gammon ◽  
...  
Keyword(s):  
Older Adults ◽  
Resistance Training ◽  
Physical Function ◽  
Repeated Measures ◽  
Test Group ◽  
Advanced Age ◽  
Rural Residents ◽  
Rural Living ◽  
Rural And Urban ◽  
Improved Performance

Comorbidities affecting physical function increase with advanced-age and rural living. This study investigated the degree of benefit from resistance training (RT) in older adults based on age (50–89 years), location (urban vs. rural), and program duration (10 vs. 8-weeks). 260 participants completed pre- and post-program dynamic and static tasks and flexibility testing. Paired and independent t-tests and one-way and repeated measures ANOVAs were used to test group improvements. All ages improved performance (all p ≤ .002) but those in their 50’s improved flexibility the most and those in their 60’s improved 30STS more and tandem balance less than those in their 80’s. Both rural and urban participants improved in all areas (all p ≤ .002), but rural participants reported greater improvements in tandem balance. Both 10- and 8-week classes improved performance (all p ≤ .001), but 8-week participants improved dynamic tasks and tandem balance more. RT can reduce functional discrepancies in older adults and rural residents.

A Resistance Training Intervention for Adults With Intellectual Disability in the Community: A Pilot Randomized Clinical Trial

2021 ◽  
pp. 1-23
Author(s):  
Iva Obrusnikova ◽  
Albert R. Cavalier ◽  
Richard R. Suminski ◽  
Ashleigh E. Blair ◽  
Cora J. Firkin ◽  
...  
Keyword(s):  
Intellectual Disability ◽  
Resistance Training ◽  
Muscular Strength ◽  
Functional Performance ◽  
Analysis Of Covariance ◽  
Training Intervention ◽  
Control Group ◽  
Community Based ◽  
Resistance Training Exercise ◽  
Experimental Group

Adults with an intellectual disability have significantly lower levels of fitness compared with the general population. This study examined the effects of a 13-week theoretically guided, community-based, multicomponent resistance training intervention, resistance training for empowerment, on muscular strength and independent functional performance in 24 adults with an intellectual disability, aged 18–44 years. Twelve participants were randomly allocated to an experimental group and 12 to an active control group. An analysis of covariance revealed that the experimental group had significantly greater increases (p < .05) on the chest press and leg press one-repetition maximum tests and the 6-min walk test from the baseline to postintervention compared with the control group. The experimental group correctly and independently performed a significantly greater number of steps of resistance training exercise tasks than the control group. Marginal significance and large effect sizes were found for the prone plank test and the stair climb test. The resistance training for empowerment was effective in promoting muscular strength and independent functional performance among adults with an intellectual disability.

scholarly journals Effects of Plyometric and Cluster Resistance Training on Explosive Power and Maximum Strength in Karate Players

2017 ◽  
Vol 6 (2) ◽  
pp. 34-44 ◽  
Author(s):  
Mohsen Aminaei ◽  
Sodabe Yazdani ◽  
Mohhamadreza Amirseifadini
Keyword(s):  
Resistance Training ◽  
Repeated Measures ◽  
Maximum Strength ◽  
Plyometric Training ◽  
Test Power ◽  
Significance Level ◽  
Cluster Group ◽  
Explosive Power ◽  
Post Test ◽  
Three Stages

The purpose of this study was to investigate the effects of plyometric and cluster resistance training on explosive power and maximum strength in karate players. Eighteen women, karate players (age mean ± SD 18.22 ± 3.02 years, mean height 163 ± 0.63cm, and mean body mass 53.25 ± 7.34 kg) were selected as volunteer samples. They were divided into two groups with respect to their recorded one repetition maximum squat exercise: [1] plyometric training (PT=9) and [2] Cluster training (CT=9) groups and performed a 9-week resistance training protocol that included three stages; [1] General fitness (2 weeks), [2] Strength (4 weeks) and [3] Power (3 weeks). Each group performed strength and power trainings for 7 weeks in stage two and three with owned protocol. The subjects were evaluated three times before stage one and after two and three stages for maximum strength and power. Data was analyzed using two way Repeated Measures (ANOVA) at a significance level of (P≤0.05). The statistical analysis showed that training stages on all research variables had a significant impact. The maximum strength of the pre-test, post-test strength and post-test power were in cluster group: 29.05 ± 1.54; 32.89 ± 2.80 and 48.74 ± 4.33w and in plyometric group were 26.98 ± 1.54; 38.48 ± 2.80 and 49.82 ± 4.33w respectively. The explosive power of the pre-test, post-test strength and post-test power in cluster group were 359.32±36.20; 427.91±34.56 and 460.55±36.80w and in plyometric group were 333.90±36.20; 400.33±34.56 and 465.20±36.80w respectively. However, there were not statistically significant differences in research variables between resistance cluster and plyometric training groups after 7 weeks. The results indicated both cluster and plyometric training program seems to improve physical fitness elements at the same levels.

scholarly journals Pushing up or pushing out—an initial investigation into horizontal- versus vertical-force training on swimming start performance: a pilot study

PeerJ ◽  
2021 ◽  
Vol 9 ◽  
pp. e10937
Author(s):  
Shiqi Thng ◽  
Simon Pearson ◽  
Justin W.L. Keogh
Keyword(s):  
Pilot Study ◽  
Resistance Training ◽  
Body Mass ◽  
Deliberate Practice ◽  
Training Programme ◽  
Concurrent Training ◽  
Training Intervention ◽  
Vertical Force ◽  
Squat Jump ◽  
Force Time

Background The block phase in the swimming start requires a quick reaction to the starting signal and a large take-off velocity that is primarily horizontal in direction. Due to the principle of specificity of training, there is a potential benefit of performing a greater proportion of horizontal force production exercises in a swimmers’ dry-land resistance training sessions. Therefore, the purpose of this pilot study was to provide an insight into the effects of a horizontal- (HF) vs vertical-force (VF) training intervention on swim start performance. Methods Eleven competitive swimmers (six males (age 20.9 ± 1.8 years, body mass 77.3 ± 9.7 kg, height 1.78 ± 0.05 m) and five females (age 21.4 ± 2.0 years, body mass 67.5 ± 7.4 kg, height 1.69 ± 0.05 m)) completed 2 weekly sessions of either a horizontal- or vertical-force focused resistance training programme for 8 weeks. Squat jump force-time characteristics and swim start kinetic and kinematic parameters were collected pre- and post-intervention. Results Across the study duration, the swimmers completed an average of nine swimming sessions per week with an average weekly swim volume of 45.5 ± 17.7 km (HF group) and 53 ± 20.0 km (VF group), but little practice of the swim start per week (n = 9). Within-group analyses indicated a significant increase in predicted one repetition maximum (1RM) hip thrust strength in the HF group, as well as significant increases in grab resultant peak force but reductions in resultant peak force of the block phase for the VF group. No significant between-group differences in predicted 1RM hip thrust and back squat strength, squat jump force-time and swim start performance measures were observed after 8 weeks of training. Significant correlations in the change scores of five block kinetic variables to time to 5 m were observed, whereby increased block kinetic outputs were associated with a reduced time to 5 m. This may be indicative of individual responses to the different training programmes. Discussion The results of this current study have been unable to determine whether a horizontal- or vertical-force training programme enhances swim start performance after an 8-week training intervention. Some reasons for the lack of within and between group effects may reflect the large volume of concurrent training and the relative lack of any deliberate practice of the swim start. Larger samples and longer training duration may be required to determine whether significant differences occur between these training approaches. Such research should also look to investigate how a reduction in the concurrent training loads and/or an increase in the deliberate practice of the swim start may influence the potential changes in swim start performance.

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