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Strength training or plyometrics for runners: which to choose?

1000+ athletes
Runners wearing race numbers during a street race after dark.

Choose strength training or plyometrics alongside running according to your goal, experience and available equipment. Lifting weights and jumping drills are different supplementary tasks, and better running economy does not automatically mean a faster race. First consider what you want to train, which movements you know and what fits alongside your running. Here is the research and a decision guide, without declaring one method the winner for every runner (Eihara et al., 2024).

What are you actually comparing?

In resistance training, you choose an exercise and an adjustable external load: a leg press, calf raise or another suitable strength exercise. Plyometrics focus on a quick push-off following a short transition from landing or a preparatory movement. Execution and the type of jump therefore matter; simply writing “more repetitions” does not describe the task adequately.

The comparison below used exercises including leg presses and leg curls against different jumping drills. It did not compare an arbitrary home circuit with an arbitrary jump challenge (Eihara et al., 2024). For individual exercises, see the existing guide to hamstring exercises for runners.

What does the research say about running economy?

Running economy describes the energy required to run at a given submaximal speed. A review in middle- and long-distance runners found potential improvements with heavy strength training and plyometrics; the speed tested was among the factors that mattered. It does not establish a personal speed threshold above which you must switch to weights (Llanos-Lagos et al., 2024).

An earlier meta-analysis gave greater average support to heavy resistance training than to plyometrics. However, the varied research programmes do not prescribe your exercises or starting weight (Eihara et al., 2022).

A small direct comparison divided twenty middle-aged recreational runners into two groups. They added strength or jump training for ten weeks. Both groups improved their running economy, without a significant improvement in five-kilometre time. There was no running-only control group. Use this finding to distinguish outcomes, rather than to conclude that the methods are equivalent for everyone (Eihara et al., 2024).

Nordbelt around sports shoes, ready for the first curl
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Which choice fits your starting point?

This table is an editorial decision aid, not a tested training protocol. Work through it before adding a session. Choose a manageable task first; its amount and timing belong within your own plan.

Your starting point Practical choice Clarify this first
You know strength exercises and have suitable equipment Discuss a focused strength block using familiar movements Which exercise, load and execution can you repeat?
You want to practise jumping skills Choose suitable plyometrics, with guidance for unfamiliar landings Which jump, surface and execution standard do you mean?
Both methods are new Start by learning one task Is technique guidance available, and does the introduction fit alongside running?
Your running plan is already hard to maintain Reconsider your available capacity before adding work Which existing training takes priority?

Bent knees and both shoes resting on the footplate of a leg press.

Illustrative image of strength equipment. It does not prescribe foot placement or training weight and does not show plyometrics. For the separate equipment question, read what a leg press means for your hamstring training.

FREE 10-WEEK TRAINING PROTOCOL

Take your Nordic curl from the first rep to week 10.

A concrete 7-page plan: build up week by week, without pushing too fast.

  • A clear week-by-week progression
  • Technique and the mistakes to avoid
  • A simple log you will actually use

Backed by research

Van Dyk et al., 2019: meta-analysis of programmes with NHE. Not an effect test of Nordbelt or this protocol.

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Do you need an additional Nordic curl?

Choosing a method is not a reason to add another hamstring exercise automatically. First review what your strength block already includes. A Nordic curl is a separate exercise; it does not replace all the weights or jumps discussed here. The Nordic hamstring curl guide helps with that separate decision.

If you also want to do a suitable bilateral Nordic curl at home, Nordbelt for home training provides stable ankle fixation without a training partner or a large machine. You still need a suitable, secure anchor and clear space. The aid solves the attachment task; choosing a training method requires no purchase, and the product promises no faster running time.

Close-up of black ankle straps around blue running shoes beside a door.

Attachment detail: the full setup and a completed Nordic curl are not visible. Check your own anchor using the home setup guide.

Make your next training decision traceable

Before a new block, write down what you want to learn or track. “Complete my strength work consistently” is a different question from “run five kilometres faster”. For strength work, record the execution and load. For jumps, record the drill, surface and whether repetitions still met your agreed execution standard. Recording fatigue alone does not make those tasks comparable.

Also note whether your important runs remain manageable. One easier-feeling long run does not prove improved running economy; that requires standardised measurements. When comparing race results, record the course and conditions too. Your log supports decisions, but it is not a controlled experiment and cannot attribute a change to one method.

For base, peak and taper phases, use the existing guide to strength training during marathon preparation. Here you choose the task, rather than a second weekly schedule. If pain increases or changes how you move, stop the exercise concerned and seek an assessment.

Example: a runner with gym experience

A fictional runner knows the leg press and calf raise, has gym access and wants a repeatable strength block. They first discuss how to continue familiar exercises. Adding a jump circuit because it “looks more like running” does not automatically improve the choice. The practical decision is to track familiar strength work and separately record how running goes. No expected time gain is attached to this example.

Example: a runner learning to jump

Another fictional runner wants to learn a simple jump with a coach. Execution quality is the first learning goal. Adding higher jumps, more repetitions and heavier lifting simultaneously would obscure what changed. They therefore agree on one task and review it before expanding the programme. This is not a proven progression, a landing tutorial or permission to jump through symptoms.

Frequently asked questions

Is heavy strength training always better than plyometrics?

No. A meta-analysis found greater average support for heavy resistance training, but the groups and programmes varied. That average does not decide which method you know or can accommodate. Consider the evidence alongside your starting point and goal, without turning a group result into a universal winner (Eihara et al., 2022).

Does better running economy mean I will run faster?

Not automatically. In the study of middle-aged recreational runners, economy improved without a significant change in five-kilometre time. A measured intermediate effect and race performance are different outcomes. Lifting a heavier weight is not, on its own, evidence of a faster running time either (Eihara et al., 2024).

Can I combine both methods?

That may be an option in an individual plan, but you need not do both to use this article. Give each task a purpose and check what remains manageable alongside running. If both are new, first decide which one to learn and how its execution will be assessed. This page prescribes no combined training volume.

Should I start with almost maximal weights?

No. A load category used in research is not a starting weight for the reader. You need suitable exercises, technique and an individual progression. Running experience does not tell you which weights you can handle. Have a new exercise and its load assessed instead of directly copying a research percentage.

Can Nordic curls replace jumping drills?

No: they are different tasks. Choose a Nordic curl only when that separate knee-flexion exercise fits your plan. It does not make a plyometric task redundant or replace a complete strength programme. Nor do you need to add Nordic curls simply because you are starting jump training.

Thomas Pereira
WRITTEN BY Thomas Pereira Physician & movement scientist · Nordbelt co-founder

Every article in this knowledge base is designed to be directly useful: clear technique, realistic progression and evidence without hype.

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THAT WAS THE KNOWLEDGE · NOW THE PRACTICE

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Nordic Hamstring Curl tool

Stronger
hamstrings.
Anywhere.

Nordbelt makes one of the best-researched hamstring exercises possible anywhere — without a training partner or expensive bench. At home, in the gym or on the field. Ready in under one minute.

REAL FOOTAGE · 0:12
ANCHORDOOR · BENCH · FENCE

“A must-have for every dedicated athlete or runner.”

Jesse van Hofwegen · Trustpilot
EXPERIENCE1000+athletes already use Nordbelt
PROFESSIONAL50+physiotherapy clinics use it
Up to 51% fewer hamstring injuries in programmes that include the Nordic Hamstring Exercise (NHE)

Used by50+ physiotherapy clinics

Logos of physiotherapy clinics and sports centres that use Nordbelt

01 THE MOVEMENT

Watch. And see why
the Nordic curl works.

  1. Phase 01Feet secured. Lean forward slowly from the knees.
  2. Phase 02Control the descent eccentrically — the muscle gets stronger as it lengthens.
  3. Phase 03Catch yourself with your hands, push back and repeat.

Eccentric training — producing force while the muscle lengthens — targets the moment when the hamstrings are loaded most during sprinting. The Nordic curl trains exactly that.

02 HOW IT WORKS

Secure. Click. Curl.

Go from your sports bag to your first controlled rep in under one minute. The three videos play automatically in sequence — tap a card to replay it.

“It is great to be able to do this exercise by myself.”

Jesse van HofwegenTrustpilot
00:04
01 — CHOOSE

Find a solid anchor point

Place Nordbelt under a sturdy door or attach it to a fitness bench, fence or beam.

00:05
02 — CLICK

Fasten and adjust to fit

Click the buckle closed and adjust the strap for a firm, comfortable position around your ankles.

00:09
03 — CURL

Start with control

Your feet are secured. Progress your Nordic Hamstring Curl training gradually and with control.

Includes a practical guide and a progressive 10-week training protocol.

View the full guide

03 TRAIN ANYWHERE

One tool.
Three anchor points.

The same Nordbelt, the same movement — wherever you train that day. Tap a location to see the real setup:

Safe use: read the instructions and conditions
Nordbelt secured under a sturdy door
01 / DOOR Under a sturdy, closed door

Place the anchor parts on the other side of the door, close it fully and check the attachment before you start.

“Wherever you are, training becomes easy.”

Sportfysio van LieropTrustpilot

04 THE KIT

Everything for your first set.

“The bag and cards are a really nice touch.”

AlissaTrustpilot
01

Nordbelt

Adjustable Nordic Hamstring Curl tool with a sturdy buckle and soft ankle rollers.

02

Storage bag

Compact enough for home, gym or field — it weighs next to nothing.

03

Manual

Clear setup and safety guidance for all three anchor points.

04

10-week protocol

Progressive training build-up, based on sports science.

REAL UNBOXING — THIS IS HOW IT ARRIVES
Thomas PereiraDoctor, sports scientist and co-founder

05 THE STORY

Not a gadget.
A frustration solved.

When I suffered a hamstring injury, I noticed how difficult it was to train properly at home without expensive equipment or help from others. That's why I developed Nordbelt.
  • 01

    Originated from real injury experience

    A real training problem was the starting point — not a marketing idea.

  • 02

    Medical and sports science foundation

    Further developed with physiotherapists and athletes in the field.

  • 03

    Built in Rotterdam

    Practical, direct and without unnecessary complexity.

Get to know the team

06 THE EVIDENCE

fewer hamstring injuries in programmes that include the Nordic Hamstring Exercise (NHE)

Meta-analysis · 8,459 athletes Br J Sports Med, 2019

Train with evidence.
Without the hype.

The Nordic Hamstring Exercise is one of the best-studied exercises in sports science. Nordbelt adds no magic — it simply lets you perform the exercise independently, practically and repeatedly. That is exactly the point.

  • 01

    Evidence-based exercise

    Training programmes that include the Nordic Hamstring Exercise show a clear reduction in hamstring injuries.

  • 02

    Build up progressively

    Start at a level that suits you and increase load and volume in a controlled way — the 10-week protocol helps you do that.

  • 03

    Widely applicable

    From football and athletics to fitness and supervised rehabilitation.

Source, context and safety note

Van Dyk N, Behan FP, Whiteley R. Br J Sports Med. 2019;53(21):1362–1370. This result concerns training programmes that include NHE; it does not show that Nordbelt itself prevents injuries.

Always use a stable anchor point, check every connection and follow a doctor’s or physiotherapist’s advice during injury, rehabilitation or return to play.

07 THE COMPARISON

The same exercise.
A smarter route.

Comparison of Nordbelt, a Nordic bench and training with a partner
Feature Nordbelt €34.99 Nordic benchhigher purchase cost Training partnerFree — if available
Train independently
Fits in your sports bag
Home, gym and field one fixed location± schedule-dependent
Ready in < 1 minute± setup & space± variable fixation
Consistent, firm fixation
Nordbelt
compare with
  • Train independently
  • Fits in your sports bag
  • Home, gym and field
  • Ready in < 1 minute
  • Consistent, firm fixation

Nordic bench · higher purchase cost

Indicative comparison based on common Nordic benches and training with another person’s assistance.

“Ideal if you do not want to buy an expensive bench.”

PaulTrustpilot

Convinced by the smarter route? 30-day return window. See the return conditions.

08 REAL PEOPLE

What athletes and physios
really think.

Kim van HeumenSports physiotherapist MSc. · Google★★★★★

“A great solution for performing the Nordic Hamstring Curl properly and easily. Useful in my work as a physiotherapist and in different locations.”

Jesse van HofwegenDedicated athlete · Trustpilot★★★★★

“A must-have for every dedicated athlete or runner. It is great to be able to do this specific exercise independently with Nordbelt.”

Hidde DemoedPhysiotherapy clinic · Google★★★★★

“A very useful tool for performing the Nordic Hamstring Curl. A must-have for every physiotherapy clinic.”

PaulTrustpilot★★★★★

Fast shipping and an ideal tool for Nordic curls if you don't want to buy an expensive bench. Great for strengthening your hamstrings.

Cem SelcukNordbelt user · Trustpilot★★★★★

“Very practical and sturdy. Nordbelt is easy to attach and feels stable. The training plan is clear and effective.”

Sportfysio van LieropSports physiotherapist · Trustpilot★★★★★

Excellent tool to perform the effective Nordic hamstring exercise at home, works well for recovery and is easy to carry.

John MeeuwisseNordbelt user★★★★★

“Great product, delivered quickly and very practical!”

Read every review, including the critical ones.

View Trustpilot reviews

09 FROM THE COMMUNITY

Built in Rotterdam.
Tested after dark.

Follow @nordbelt.store
Smiling athlete on the Erasmus Bridge at night
ERASMUS BRIDGE · 23:40
Nordbelt attached to a fence during an evening session
FENCE SETUP · OUTDOORS
Hamstring Training at Home shirt on the athletics track
BACKED BY SCIENCE
Two runners racing in the rain at night
PR NIGHT · RAIN
Athlete by the railing with the Erasmus Bridge behind
REST DAY? NO.
Runners in the mist at night
THROUGH THE MIST
Group of runners in black and white through Rotterdam
R'DAM CREW
Exhausted runner on the ground after the finish
GAVE IT EVERYTHING

Real photos from the Nordbelt community and brand team — straight from nordbelt.nl.

11 FAQ

One more question
before you order?

Clear information upfront — no fine print hidden behind the buy button.

A personal question? contact@nordbelt.com We usually respond within 1 business day.
How do I use Nordbelt?

Choose a stable door, fitness bench, fence or beam. Close the buckle, adjust the length, check the attachment and start with controlled repetitions.

What is included in the package?

The Nordbelt, a compact storage bag, a practical guide and a progressive 10-week training protocol.

Do I need a training partner or bench?

No. Nordbelt is designed for independent training without a large Nordic bench. You do always need a firm, stable anchor point.

Is this suitable for recovery or rehabilitation?

Nordbelt can support controlled hamstring strengthening. During recovery, decide on timing, load and progression together with your doctor or physiotherapist.

What does shipping cost?

Standard shipping — Spain: free.

Can I return it?

You can request a return within 30 days of receipt. The product must be unused, clean and in its original packaging; return shipping costs are paid by the buyer.

Is Nordbelt suitable for beginners?

Yes. Start with a smaller range of motion and support if needed, keep repetitions controlled and follow the included 10-week protocol. Stop if your technique breaks down or you feel pain.

Which anchor points are safe?

Only use a solid door, heavy fitness bench, sturdy fence or fixed beam that cannot open, slide or tip. Before every set, pull firmly on the attachment in the same direction as the training load.

How often can I train Nordic Hamstring Curls?

There is no single frequency that suits everyone. Use the 10-week protocol as a progressive starting point and match volume and recovery time to your level, sporting load and technique.

Where does the 51% fewer hamstring injuries claim come from?

The 51% refers to programmes that included the Nordic Hamstring Exercise, not to Nordbelt as a product. A systematic review and meta-analysis of 8,459 athletes (van Dyk, Behan & Whiteley, Br J Sports Med, 2019) reported a reduction of up to 51%; individual results are not guaranteed.

30-day return period

Try Nordbelt.
30-day return period

Returns are accepted within 30 days. The product must be unused, clean and in its original packaging; return shipping is paid by the customer. View return policy

  • 30-day return period Return shipping costs are paid by the buyer
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Ready in < 60 sec
★★★★★

“Great product, very practical.”

John · Google

“A great tool for home use. Easy to take with you.”

Sportfysio van LieropTrustpilot

RTM / 2026 READY WHEN YOU ARE

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