TRAINING PROGRESS
Why Am I Not Improving at Jumping? The 5 Real Causes
Trained for months with no jump gains? The five most common causes — and which one is probably yours.
If you have trained consistently and the jump height is not moving, the problem is almost never effort. It is almost always one of five structural causes — and every one of them is fixable once you name it.
No periodization
Doing the same work every week lets the body adapt and the stimulus stops being effective. A real cycle moves through base → strength → power → peak, so the stimulus keeps changing.
Strength base too low
Plyometric gains are limited below roughly a 1.5x bodyweight squat. If you cannot squat that yet, jumping more is not the answer — building strength is.
Wrong plyometric parameters
Two to three sessions per week with 50–100 quality contacts is the productive band. Too much masks power with fatigue; too little under-stimulates.
Recovery gaps
Sleep under 7 hours measurably lowers force output, and poor nutrition limits anabolism. Training cannot outrun a broken recovery system.
No objective assessment
What is not measured is not managed. Without a diagnosis you are guessing whether strength, elasticity, technique or recovery is the bottleneck.
Key takeaways
- Periodize the training cycle instead of repeating the same week.
- Build the strength base before expecting plyometrics to pay off.
- Keep plyometric volume in the 50–100 contacts, 2–3 sessions/week band.
- Assess first — guessing wastes months.
References
- Sánchez-Sixto et al. (2021) J Strength Cond Res
- Reilly & Edwards (2007) Sports Med
- NSCA Essentials of Strength Training and Conditioning (4th ed.), Ch. 21
Keep reading
TRAINING PROGRESS
How Long Until You See Results From Jump Training?
A realistic vertical jump improvement timeline: what changes at 2, 4, 8 and 12 weeks, and why starting level, training quality and recovery decide the pace.
TRAINING METHODS
How Many Jump Training Sessions Per Week Do You Actually Need?
Training frequency by experience level, safe plyometric contact volume, and the warning signs that tell you to cut back.
TRAINING PROGRESS
How to Break a Jump Training Plateau
A plateau means the body has adapted to the current stimulus. Diagnose the weak link, change the variables, deload and fix recovery.