Related Experiment Video
Updated: May 21, 2026
08:27
Muscle Velocity Recovery Cycles to Examine Muscle Membrane Properties
Published on: February 19, 2020
Sensitivity of Load-velocity Relationship Variables to a Resistance Training Mesocycle
Zongwei Chen1, Amador García-Ramos1,2, Zhuorong Huang3
1Faculty of Sport Sciences, University of Granada, Department of Physical Education and Sports, Spain, Granada.
International Journal of Sports Medicine
|May 19, 2026
Summary
The load-velocity (L-V) relationship
Area of Science:
- Sports Science
- Strength and Conditioning
- Biomechanics
Background:
- The load-velocity (L-V) relationship is a key concept in strength and conditioning.
- Understanding how L-V relationship variables change with training is crucial for monitoring athlete progress.
- Maximal dynamic strength changes can be influenced by different training microcycles.
Purpose of the Study:
- To investigate the sensitivity of L-V relationship variables as indicators of maximal dynamic strength changes.
- To compare the effectiveness of different L-V relationship variables in tracking strength adaptations across training phases.
- To assess the inter-individual variability in strength adaptations during different microcycles.
Main Methods:
- Twenty resistance-trained men participated in a three-week training program involving back squat and bench press.
- One-repetition maximum (1RM) and the two-point L-V relationship were assessed before and after each microcycle (introductory, overload, taper).
- Variables analyzed included 1RM, area under the L-V line (Aline), velocity-axis intercept (v0), and L0, derived from both peak and mean velocity.
Main Results:
- One-repetition maximum (1RM), Aline, and v0 (peak velocity) increased significantly after the taper microcycle.
- Inter-individual variability in strength adaptations was greater during overload and taper microcycles compared to the introductory microcycle.
- Aline derived from mean velocity demonstrated a consistent and significant association with 1RM changes across all exercises and microcycles.
Conclusions:
- Short mesocycles induce considerable inter-individual variability in strength adaptations.
- Aline derived from mean velocity is a practical and fatigue-free method for monitoring maximal strength changes during training.
- L-V relationship variables, particularly Aline from mean velocity, can serve as sensitive indicators of dynamic strength progression.
More Related Videos
Related Concept Videos
01:27Exercise and Muscle Performance
Exercise induces a range of adaptations in muscle tissue, depending on the type and duration of activity. Such physical training can be broadly categorized into two types: endurance exercises and resistance exercises.
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...
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...
01:19Impact Loading
Impact loading occurs when a moving object collides with a stationary structure, such as a rod with a uniform cross-sectional area fixed at one end. Under these conditions, the rod absorbs the kinetic energy from the striking object, leading to deformation and subsequent stress development. As the rod returns to its original position and reaches maximum stress, the absorbed energy, initially manifested as kinetic energy, transforms entirely into strain energy.
In cases of elastic deformation,...
In cases of elastic deformation,...