Strength & ConditioningAnswer

HOW DO I MAINTAIN MUSCLE MASS AS A CYCLIST?

By Anthony WalshRoadman CyclingUpdated 10 July 2026

ANSWER

Maintaining muscle mass while cycling requires three inputs: adequate protein intake of 1.6-2.2g per kilogram of body weight per day distributed across 4-5 meals, two resistance training sessions per week targeting the major muscle groups, and avoiding chronic caloric deficits that force the body to catabolise muscle for fuel. Endurance training creates a competing signal to strength adaptation (the interference effect), but research by Prof Keith Baar shows that separating endurance and strength sessions by 6+ hours and consuming 20-40g of protein within an hour of each session minimises this conflict. Masters cyclists need to be particularly vigilant — muscle loss accelerates from age 40 without resistance training.

KEY TAKEAWAYS

1.6-2.2g/kg/day of protein, distributed across 4-5 meals, provides the amino acid availability needed for muscle protein synthesis.
Two resistance training sessions per week is sufficient to maintain muscle mass alongside a cycling programme.
Separate hard cycling and strength sessions by 6+ hours to reduce the interference effect between endurance and strength adaptations.
Chronic caloric deficits of more than 300-500 calories per day accelerate muscle loss — fuel adequately during training blocks.

WHO THIS IS FOR

IS THIS YOU?

Cyclists who feel they are losing muscle despite riding regularly

You notice your arms and upper body getting thinner, your clothes fitting differently, and your off-bike strength declining as your cycling volume increases.

Masters riders wanting to counter age-related muscle loss

You are over 40 and aware that muscle mass declines with age but want to know the minimum effective dose of strength work and nutrition to maintain it.

THE ROADMAN VIEW

Cycling is brilliant for your cardiovascular system but terrible for your upper body muscle mass. The sport selectively develops the legs while the upper body — chest, back, arms, shoulders — receives almost no stimulus. Add in the caloric expenditure of long rides and many cyclists slowly become 'all legs, no torso'. That might not matter for pure performance, but for long-term health, bone density, and metabolic health, maintaining total body muscle mass is critical.

The fix is simple and does not require excessive gym time. Two 30-40 minute sessions per week covering upper body pressing, pulling, and core work, combined with adequate protein, is enough to halt muscle loss. The gains from these sessions compound over years — a 50-year-old cyclist who has been doing consistent strength work has a completely different health trajectory to one who has not.

EXPERT EVIDENCE

WHAT THE EXPERTS SAY

Prof Keith BaarMolecular exercise physiologist, UC Davis
The interference effect between endurance and strength training is real but manageable. The mTOR pathway that drives muscle protein synthesis is suppressed by AMPK activation from endurance exercise. Separating sessions by 6-8 hours allows mTOR activity to recover before the strength stimulus. Consuming leucine-rich protein (20-40g) after each strength session further supports the anabolic signal. For masters athletes, the protein dose per meal should be at the higher end — 35-40g — because the anabolic response to protein becomes blunted with age.

PRACTICAL APPLICATION

DO THIS WEEK

Hit your daily protein target across 4-5 meals
For a 75kg rider, aim for 120-165g of protein per day spread across 4-5 eating occasions. Each meal should contain 25-40g of high-quality protein (chicken, fish, eggs, dairy, legumes). Front-load protein at breakfast — many cyclists under-eat protein in the morning and try to compensate at dinner, which is less effective for muscle protein synthesis.
Perform two full-body resistance sessions per week
Each session should include an upper body push (press-ups, dumbbell press), an upper body pull (rows, pull-ups), a single-leg movement (lunges, step-ups), and core work (planks, pallof press). Use moderate weights that allow 8-12 controlled repetitions per set. Three sets per exercise is sufficient. Schedule these sessions on easy cycling days or with 6+ hours between a ride and the gym.
Avoid sustained caloric deficits during training blocks
If you need to lose weight, keep the deficit modest (300-500 calories per day maximum) and increase protein intake to the upper end of the range (2.0-2.2g/kg) to protect muscle tissue. Time any weight loss for the base phase when training intensity is lower. During build and race phases, eat at maintenance to support both training adaptation and muscle preservation.

COMMON MISTAKES

WHAT CYCLISTS GET WRONG

MISTAKERelying on cycling alone to maintain muscle mass.
FIXCycling provides a lower-body endurance stimulus but does not prevent age-related muscle loss (sarcopenia) in the upper body or maintain the fast-twitch muscle fibres needed for strength and power. Resistance training is a non-negotiable addition for long-term muscle health.
MISTAKEEating too little protein, especially at breakfast.
FIXMost cyclists consume 0.8-1.2g/kg of protein — well below the 1.6-2.2g/kg needed for muscle maintenance during concurrent endurance and strength training. Track your protein intake for a week to identify the shortfall. Increase breakfast protein as the easiest first step.
MISTAKEDoing strength sessions immediately after hard rides.
FIXThe interference effect is strongest when strength training follows endurance exercise with little recovery. Separate sessions by 6+ hours, or schedule strength work on easy cycling days. If time is limited, do strength in the morning and ride in the evening rather than the reverse.

FAQ

FREQUENTLY ASKED QUESTIONS

How much muscle do cyclists typically lose?

Without resistance training, adults lose approximately 3-8% of muscle mass per decade after 30, accelerating after 50. High-volume endurance athletes can lose muscle faster due to catabolic signals from extended exercise and caloric deficits. Two strength sessions per week and adequate protein intake are sufficient to offset this decline and, in many cases, reverse it even in masters athletes.

Will gaining muscle make me slower on the bike?

Maintaining existing muscle mass does not add meaningful weight. The concern is valid only if you are actively trying to build significant new muscle (bodybuilding-style training), which is not the goal here. Maintaining functional muscle mass improves bone density, metabolic health, injury resilience, and power production without measurably affecting climbing performance.

Can I maintain muscle without going to a gym?

Yes. Bodyweight exercises (press-ups, pull-ups, lunges, planks) and resistance band work can provide sufficient stimulus to maintain muscle mass. The key is progressive overload — increasing difficulty over time through harder variations or more volume. A gym provides easier progression through weight increments, but it is not the only option.