Related Experiment Video
Updated: Jun 17, 2026

Muscle Imbalances: Testing and Training Functional Eccentric Hamstring Strength in Athletic Populations
Published on: May 1, 2018
Muscle strength and power in young volleyball players: reference values and age group differences
Vladimir Grbić1, Lazar Toskić2,3,4, Milan Marković1,5
1International Volleyball Camp ''Vladimir Vanja Grbić'', Belgrade, Serbia.
This study establishes crucial reference values for muscle strength and power in young volleyball players aged 10-18. These findings help coaches track development and identify talent in youth athletes.
Area of Science:
- Sports Science
- Youth Athletic Development
- Volleyball Performance Analysis
Background:
- Lack of normative data for young volleyball players hinders objective performance interpretation and talent identification.
- Existing datasets do not adequately capture the nuances of maturation and training adaptations in this specific athletic group.
- Coaches and practitioners require reliable benchmarks to assess muscle strength and power in youth volleyball athletes.
Purpose of the Study:
- To establish comprehensive reference values for muscle strength and power in young volleyball players across different age groups (10-18 years).
- To identify and quantify age-related differences in muscle strength and power within this cohort.
- To provide a foundation for objective athlete assessment and talent scouting in youth volleyball.
Main Methods:
- A large sample of 3,337 male and female volleyball players aged 10-18 years was assessed.
- Muscle strength and power were measured using the Hand Grip Strength test (HGS) and countermovement jump without arm swing (CMJ).
- One-way MANOVA and ANOVA with Bonferroni post-hoc tests were employed to analyze age group differences.
Main Results:
- Significant age-related differences in muscle strength and power were observed in both male and female youth volleyball players.
- All measured parameters demonstrated a significant increase with advancing age across the studied age groups.
- Effect sizes indicated substantial variance explained by age group for both genders (males: η²=0.26; females: η²=0.11).
Conclusions:
- The study successfully established age-specific reference values for muscle strength and power in young volleyball players.
- These normative data are essential for coaches to monitor training, track development, and identify potential talent.
- Implementing these assessments allows for a more objective evaluation of growth, maturation, and training-induced adaptations in youth volleyball.
More Related Videos
07:44Construction of Constant-Load (Isotonic) and Constant-Velocity (Isokinetic) Torque-Velocity-Power Profiles In vivo for the Rat Plantar Flexors
Published on: October 3, 2025
12:59Improving Strength, Power, Muscle Aerobic Capacity, and Glucose Tolerance through Short-term Progressive Strength Training Among Elderly People
Published on: July 5, 2017
Related Concept Videos
Exercise and Muscle Performance
Endurance exercises
Endurance exercises involve running, swimming, or cycling, which require repetitive movements with low force output. When a person engages in endurance exercise, a few noticeable changes occur in their skeletal muscles. For instance, the number of capillaries...
Changes in the Appendicular Skeleton with Age
Initially, the limb buds consist of a core of mesenchyme covered by a layer of ectoderm. The ectoderm at the end of the limb bud thickens to form a narrow crest called the apical ectodermal ridge. This ridge stimulates the underlying...
Strength of Cement
For compressive strength tests, ASTM C 109-05 standards prescribe a cement-sand mix ratio of 1:2.75 and a water/cement ratio of 0.485 for making 2-inch cubes. These cubes are mixed, cast, and cured in saturated lime water at 23°C until testing. Flexural strength testing, outlined in ASTM C...
Bone Disorders
Bone deposition is also affected by the levels of sex hormones like estrogen and testosterone that promote osteoblast activity and bone matrix synthesis. When the level of these hormones decreases due to aging, it causes a reduction in bone deposition. As a result, bone resorption by osteoclasts...