Trial reportEuropean journal of applied physiology2015
Neuromuscular mechanics and hopping training in elderly.
Trial report in European journal of applied physiology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 3 of them syntheses that pooled it.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
11 citing papers in PubMed, 3 syntheses or guidelines pooled it, 21 citations in OpenAlex.
- Effects of Plyometric Jump Training on the Reactive Strength Index in Healthy Individuals Across the Lifespan: A Systematic Review with Meta-analysis.Sports medicine (Auckland, N.Z.) · 2023Pooled it
- Effects of Plyometric Training on Lower Body Muscle Architecture, Tendon Structure, Stiffness and Physical Performance: A Systematic Review and Meta-analysis.Sports medicine - open · 2022Pooled it
- The Efficacy and Safety of Lower-Limb Plyometric Training in Older Adults: A Systematic Review.Sports medicine (Auckland, N.Z.) · 2019Pooled it
- Trial
- Plyometric exercise improves jumping performance and skeletal muscle contractile properties in seniors.Journal of musculoskeletal & neuronal interactions · 2019Trial
- Effects of jump training on power, strength, balance and aerobic performance in non-exercising young adults.Frontiers in sports and active living · 2026Article
- Effects of eccentric- and concentric-based plyometric programmes on strength, speed and tensiomyography parameters of female athletes.Biology of sport · 2026Article
- In Vivo Strain Patterns in the Achilles Tendon During Dynamic Activities: A Comprehensive Survey of the Literature.Sports medicine - open · 2023Review
- Body composition adaptations to lower-body plyometric training: a systematic review and meta-analysis.Biology of sport · 2022Review
- Neuromechanical Modulation of the Achilles Tendon During Bilateral Hopping in Patients with Unilateral Achilles Tendon Rupture, Over 1 Year After Surgical Repair.Sports medicine (Auckland, N.Z.) · 2017Article
- Strengthening of back muscles using a module of flexible strain sensors.Sensors (Basel, Switzerland) · 2015Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors at 3 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeThe present study examined the effects of repetitive hopping training on muscle activation profiles and fascicle-tendon interaction in the elderly.
methods20 physically active elderly men were randomly assigned for training (TG) and control groups (CG). TG performed supervised bilateral short contact hopping training with progressively increasing training volume. Measurements were performed before the training period (BEF) as well as after 2 weeks (2 W) and 11 weeks (11 W) of training. During measurements, the gastrocnemius medialis-muscle (GaM) fascicle and its outer Achilles tendon length changes during hopping were examined by ultrasonography together with electromyographic (EMG) activities of calf muscles, kinematics, and kinetics.
resultsAt 2 W, the ankle joint stiffness was increased by 21.0 ± 19.3 % and contact time decreased by 9.4 ± 7.8 % in TG. Thereafter, from 2-11 W the jumping height increased 56.2 ± 18.1 % in TG. Simultaneously, tendon forces increased 24.3 ± 19.0 % but tendon stiffness did not change. GaM fascicles shifted to shorter operating lengths after training without any changes in their length modifications during the contact phase of hopping. Normalized EMG amplitudes during hopping did not change with training.
conclusionsThe present study shows that 11 W of hopping training improves the performance of physically active elderly men. This improvement is achieved with shorter GaM operating lengths and, therefore, increased fascicle stiffness and improved tendon utilization after training. Based on these results, hopping training could be recommended for healthy fit elderly to retain and improve rapid force production capacity.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.