How to train leg strength on the smart trainer

Indoor training on the smart trainer is becoming an increasingly popular option for cyclists, not only to maintain fitness, but also to develop specific qualities.
One above all: leg strength.

Although smart trainers are known mainly for aerobic conditioning, several studies have shown that, with the right strategies, it is also possible to stimulate significant muscular strength adaptations.
 

The benefits of strength training on the smart trainer

One key study compared performance on smart trainers and rollers in a 10 km time trial, and found that smart trainers improve pedal stroke quality and neuromuscular stabilisation to a greater extent, precisely because you need to maintain dynamic balance.

Integrating high-intensity sessions on the smart trainer with all-out sprints increases maximum leg strength and improves pedalling economy.

A simple and effective example is using 6–8 second sprints on a smart trainer with progressive resistance, repeated with long recovery periods.

Riding on the smart trainer requires greater activation of the stabiliser muscles. This leads to significant involvement of the core and the lower limbs, especially the hip and knee extensor muscles.

Training on the smart trainer also improves coordination between the postural muscles of the back and the propulsive muscles of the legs, thereby optimising force application on the bike.
 

You won’t “bulk up”

When talking about strength, many cyclists think it means becoming bigger and slower. Nothing could be further from the truth.

The most significant adaptation on the smart trainer is neuromuscular: it improves inter-muscular coordination during the pedal stroke, even without a direct increase in muscle mass.

Here are some exercises you can do on the smart trainer to improve leg strength:

1. Simulated SFR (Strength–Endurance Climbs)

Although SFRs do not train strength in a strict sense, they can be used as a tool to improve lactate tolerance, and therefore increase the ability to push on climbs even under fatigue.

To use this strategy, work on a smart trainer with adjustable resistance, selecting a power output that allows you to push high watts at a cadence of 40–50 rpm.

Do repeats of 3–6 minutes, with 3–5 minutes of easy spinning between intervals, and repeat for 3–5 sets.
 

2. Standing-start all-out sprints

All-out standing-start sprints improve neuromuscular coordination and therefore the ability to produce force in a very short time.

This capacity is crucial for accelerations, attacks and changes of pace. In addition, this type of training activates fast-twitch muscle fibres, which are the first to lose efficiency with advancing age.

On the smart trainer, set a high resistance. From a standing start, begin to push at maximum intensity for 6–8 seconds.

Recover with very easy pedalling for 2–3 minutes, then repeat for a total of 8–10 sprints.
 

Mind your recovery

It is essential to plan recovery between strength sessions on the smart trainer.

These workouts should not be done without leaving at least 48 hours between one session and the next, as they place significant stress on muscles and joints.
 

You still need the iron

These sessions should of course be combined with at least one traditional strength workout per week with weights – literally, iron plates on the bar. In this way, the overall plan will be as effective as possible and will play a key role in injury prevention.
 

Can you train leg strength on the smart trainer?

Training leg strength on the smart trainer is possible, effective and supported by scientific research. By combining sprints, simulated climbs and strength work with external loads, you can obtain a tangible increase in muscular strength, coordination and power (both peak and sustained).