Effect of a 2-Week Strength Training Learning Intervention on Self-selected Weight Training Intensity

The purpose of this investigation was to determine the effects of high-intensity strength training on bone mineral density (BMD) of 34 non-estrogen-repleted, active women over 60 years of age. The study was designed as a randomized, nonblinded trial in which subjects were stratified into rank-ordered pairs by level of physical activity, then randomly assigned into either a weight training (WT) or a control (CON) group. BMD of the spine (L2–L4), hip, and total body was assessed at 0, 6, and 12 months by dual energy x-ray absorptiometry. Group-by-time repeated-measures ANOVA demonstrated no effect of weight training on BMD, despite marked gains in muscular strength for all exercises. The high-intensity weight training utilized in this study did not induce positive changes in BMD of the hip and spine of previously active, non-estrogen-repleted older women. However, the protocol was safe, enjoyable, and highly effective in increasing muscular strength.

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Research on Universal Design of Water-based Strength Training Fitness Products

E3S Web of Conferences ◽

10.1051/e3sconf/202018903007 ◽

2020 ◽

Vol 189 ◽

pp. 03007

Author(s):

Ding Baihao ◽

Zhang Jixiao

Keyword(s):

Strength Training ◽

Universal Design ◽

Training Needs ◽

Training Intensity ◽

Design Scheme ◽

Water Based ◽

Single Use ◽

And Function ◽

And Training

The existing strength training fitness products have the problems of single-use group and function. First of all, this paper takes the universal design as the research criterion, finds out the design pain point of the product to realize the strength training generalization, and proposes to use water as the medium to solve the problems of different groups when carrying out strength training because the products can not meet the different training intensity, universal safety, and training parts. Then, the products can be generalized to different groups and their diversified training needs. Finally, the design scheme is analyzed qualitatively and quantitatively, and compared with the best strength training universal products on the market, so as to verify that water as the medium is feasible for effectively realizing the product generalization in different groups and diversified training needs.

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WEIGHT TRAINING TECHNIQUES: The closed kinetic chain in strength training

National Strength & Conditioning Association Journal ◽

10.1519/0744-0049(1991)013<0029:tckcis>2.3.co;2 ◽

1991 ◽

Vol 13 (1) ◽

pp. 29 ◽

Cited By ~ 7

Author(s):

Robert A. Panariello

Keyword(s):

Strength Training ◽

Weight Training ◽

Kinetic Chain ◽

Training Techniques ◽

Closed Kinetic Chain

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Dynamic strength training intensity in cardiovascular rehabilitation: is it time to reconsider clinical practice? A systematic review

European Journal of Preventive Cardiology ◽

10.1177/2047487319847003 ◽

2019 ◽

Vol 26 (14) ◽

pp. 1483-1492 ◽

Cited By ~ 9

Author(s):

Dominique Hansen ◽

Ana Abreu ◽

Patrick Doherty ◽

Heinz Völler

Keyword(s):

Systematic Review ◽

Clinical Practice ◽

Muscle Strength ◽

Strength Training ◽

High Intensity ◽

Dynamic Strength ◽

Training Intensity ◽

Low Intensity ◽

Peripheral Muscle ◽

Dynamic Strength Training

When added to endurance training, dynamic strength training leads to significantly greater improvements in peripheral muscle strength and power output in patients with cardiovascular disease, which may be relevant to enhance the patient’s prognosis. As a result, dynamic strength training is recommended in the rehabilitative treatment of many different cardiovascular diseases. However, what strength training intensity should be selected remains under intense debate. Evidence is nonetheless emerging that high-intensity strength training (≥70% of one-repetition maximum) is more effective to increase acutely myofibrillar protein synthesis, cause neural adaptations and, in the long term, increase muscle strength, when compared to low-intensity strength training. Moreover, multiple studies report that high-intensity strength training causes fewer increments in (intra-)arterial blood pressure and cardiac output, as opposed to low-intensity strength training, thus potentially pointing towards sufficient medical safety for the cardiovascular system. The aim of this systematic review is therefore to discuss this line of evidence, which is in contrast to current clinical practice, and to re-open the debate as to what dynamic strength training intensities should actually be applied.

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Two Modes of Weight Training Programs and Patellar Stabilization

Journal of Athletic Training ◽

10.4085/1062-6050-44.3.264 ◽

2009 ◽

Vol 44 (3) ◽

pp. 264-271 ◽

Cited By ~ 10

Author(s):

Yiu-ming Wong ◽

Suk-tak Chan ◽

Kwok-wing Tang ◽

Gabriel Y. F. Ng

Keyword(s):

Magnetic Resonance Imaging ◽

Magnetic Resonance ◽

Strength Training ◽

Muscle Hypertrophy ◽

Weight Training ◽

Training Programs ◽

Knee Extension ◽

Control Group ◽

Resonance Imaging ◽

Training Groups

Abstract Context: Underconditioned patellar stabilizing muscles could be a predisposing factor for patellar instability. Objective: To examine the effect of 2 modes of weight training on the size of the vastus medialis obliquus (VMO), the resting position and passive mobility of the patella, and the strength of the knee extensor muscles. Design: Prospective intervention, repeated measures in 3 groups. Setting: Orthopaedic and sports sciences research laboratory. Patients or Other Participants: 48 healthy adults free from back and lower extremity injuries. Intervention(s): Participants were randomly assigned to muscle hypertrophy training, muscle strength training, or the control group. Those in the training groups pursued training 3 times per week for 8 weeks. Main Outcome Measure(s): Magnetic resonance imaging and ultrasound cross-sectional area of the VMO, patellar tilt angle on magnetic resonance imaging, instrumented passive patellar mobility, and isometric knee extension torque of the dominant leg. Results: Participants in both training groups had comparable gains in VMO size, passive patellar stability, and knee extension force, all of which were greater than for the control group (P < .05). Conclusions: Both short-term muscle hypertrophy and strength training programs can reinforce the patellar stabilizers in previously untrained volunteers.

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Effects of Strength Training on Olympic Time-Based Sport Performance: A Systematic Review and Meta-Analysis of Randomized Controlled Trials

International Journal of Sports Physiology and Performance ◽

10.1123/ijspp.2019-0329 ◽

2019 ◽

Vol 14 (10) ◽

pp. 1318-1330 ◽

Cited By ~ 3

Author(s):

Danny Lum ◽

Tiago M. Barbosa

Keyword(s):

Confidence Interval ◽

Strength Training ◽

Effect Size ◽

Weight Training ◽

Meta Analysis ◽

Time Trial ◽

Training Status ◽

Time Trial Performance ◽

And Training ◽

Trial Performance

Purpose: To evaluate the effect of strength training on Olympic time-based sports (OTBS) time-trial performance and provide an estimate of the impact of type of strength training, age, training status, and training duration on OTBS time-trial performance. Methods: A search on 3 electronic databases was conducted. The analysis comprised 32 effects in 28 studies. Posttest time-trial performance of intervention and control group from each study was used to estimate the standardized magnitude of impact of strength training on OTBS time-trial performance. Results: Strength training had a moderate positive effect on OTBS time-trial performance (effect size = 0.59, P < .01). Subgroup meta-analysis showed that heavy weight training (effect size = 0.30, P = .01) produced a significant effect, whereas other modes did not induce significant effects. Training status as factorial covariate was significant for well-trained athletes (effect size = 0.62, P = .04), but not for other training levels. Meta-regression analysis yielded nonsignificant relationship with age of the participants recruited (β = −0.04; 95% confidence interval, −0.08 to 0.004; P = .07) and training duration (β = −0.05; 95% confidence interval, −0.11 to 0.02; P = .15) as continuous covariates. Conclusion: Heavy weight training is an effective method for improving OTBS time-trial performance. Strength training has greatest impact on well-trained athletes regardless of age and training duration.

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