Beach and Sand Training: Benefits and Injury Risks

By Olivia Bennett

Who This Matters Most For

The Biomechanics of Sand Training

Soft, dry sand behaves nothing like a firm running surface. Every time a foot lands, the granules compress and shift underneath it, which absorbs some of the collision energy but also means the foot sinks slightly before it can push off again. That single mechanical fact explains almost everything about why sand training feels different, costs more energy, and stresses different tissues than running on grass, a track, or a road.

Energy cost: sand simply asks for more

The most frequently cited research on this question comes from Pinnington and Dawson, who published a controlled comparison of running on grass versus soft dry beach sand in the Journal of Science and Medicine in Sport in 2001. Twelve recreational runners ran at matched speeds on both surfaces while their aerobic and anaerobic energy costs were measured. At a jogging pace of 8 km/h, the net aerobic energy cost of running on sand was about 1.5 to 1.6 times higher than on grass, whether the runners were barefoot or wearing shoes, and the net anaerobic energy cost was roughly 2.5 to 3.7 times higher. Across every speed the researchers tested, sand running remained significantly more metabolically demanding than grass running. Their conclusion was that sand running offers a low-impact but high-energy-cost training stimulus, which is a useful way to think about the whole surface.

That extra cost is not a flaw of sand, it is the point. It means a given training session on sand produces a larger cardiovascular and metabolic load at a lower running speed than the same session would on a firm surface, which is part of why sand conditioning shows up so often in team-sport preseason programs.

Reduced impact forces

The compressible surface that raises the energy cost is the same feature that lowers peak impact forces at the foot, ankle, and knee compared with concrete, asphalt, or even grass over a firm base. A 2014 review in the Journal of Sports Sciences by Binnie and colleagues, which summarized the existing sand-training literature for team-sport applications, describes sand as offering a training surface with significant physiological and biomechanical differences from grass, including impact forces low enough to limit muscle damage, soreness, and the performance decrements that often follow hard training blocks on firm ground. That combination, a genuine training stimulus with reduced landing loads, is the central biomechanical argument for using sand strategically rather than as a wholesale replacement for regular training surfaces.

Different muscle activation patterns

Because the sand yields underfoot, the lower leg cannot rely on the same rigid push-off it gets from pavement. The foot and ankle musculature, particularly the calf complex, has to work harder to stabilize the ankle and generate propulsion through a shifting surface. A 2025 study in the Journal of NeuroEngineering and Rehabilitation by Kurtoğlu and colleagues measured gastrocnemius muscle activation with surface electromyography in young athletes before and after a four-week program performed on sand versus a tartan track. Activation increased on both surfaces, though the pattern of change differed between the two groups and the authors were careful to note that individual responses varied considerably rather than following one uniform trend. Separately, research on postural control on unstable surfaces, including a 2026 study in Frontiers in Sports and Active Living by Shen and colleagues, has shown that an unstable or compliant surface increases both postural sway and the sensorimotor demand of simply balancing, especially in people with a history of ankle instability. Sand is not identical to a laboratory foam pad, but the underlying principle, that a soft or uneven base recruits more stabilizing muscle activity than a firm one, applies directly to beach training.

Figures summarized from Pinnington & Dawson (2001), Binnie et al. (2014), and Yan et al. (2026); see References.

Genuine Benefits of Sand Training

Beyond the biomechanics, there are practical reasons athletes and coaches keep coming back to sand as a training tool.

• Lower joint impact for a given effort. Because the surface absorbs some of the landing force, sand sessions can provide a cardiovascular and muscular training stimulus with less pounding on the knees, hips, and lower back than the same duration of running on pavement, which is useful during a return from a lower-body injury or during a high-volume training phase when joints need a break from repeated hard-surface loading.
• Greater muscular demand at lower speeds. The 2001 Pinnington and Dawson data show that a modest jogging pace on sand produces an energy cost similar to a much faster pace on grass, so shorter sand sessions can deliver a comparable conditioning effect to longer firm-surface sessions.
• Performance transfer for team-sport athletes. The 2014 review by Binnie and colleagues and the 2026 randomized trial by Yan and colleagues in the Journal of Sports Science & Medicine both report that structured sand-based training, done alongside normal team training rather than instead of it, produced improvements in jump performance and repeated-sprint power that were comparable to or, in some measures, greater than the same volume of grass-based training in soccer players.
• Reduced muscle damage and soreness after hard efforts. The lower impact loading associated with sand appears to limit the muscle damage and next-day soreness that often follow intense running sessions on firm ground, according to the mechanisms summarized in the Binnie review, which can help athletes absorb more total training load across a week without accumulating the same wear and tear.
• Added proprioceptive and stabilizer challenge. The uneven, shifting nature of sand recruits the small stabilizing muscles of the foot and ankle more than a flat, firm surface does, which can be a useful adjunct to balance and ankle-strengthening work when introduced carefully.

Injury Risks and How to Reduce Them

The same features that make sand training valuable also make it a common place for people to get hurt, almost always because they treated it like a firm-surface workout rather than a distinct stimulus that needs its own dosing.

Achilles tendon and calf strain

The calf muscles and Achilles tendon do extra eccentric and stabilizing work on sand because the ankle has to control a foot that sinks and shifts with every step, rather than landing on a fixed, predictable surface. For someone whose lower legs are not conditioned to that demand, an unaccustomed sand session, especially barefoot, at speed, or on a slope, can produce a level of loading the calf and Achilles are not ready to absorb. A qualitative study of twenty expert sports clinicians published in Sports Medicine – Open in 2022 by Green and colleagues, focused specifically on calf muscle strain injuries, found that ongoing monitoring of an athlete’s calf capacity and their response to loading exposure gives the most accurate picture of injury risk, and that there is no single universal prevention program, because individual load tolerance and prior injury history vary so much. That is a useful frame for sand training specifically: the injury risk comes from a sudden mismatch between load and tolerance, not from sand itself.

Ankle instability on soft, uneven sand

Dry, loose sand, wet firm sand near the waterline, small dips, shell debris, and slopes toward the water all change the surface from stride to stride. Anyone with a history of ankle sprains or chronic ankle instability is working with a nervous system that already struggles more on unpredictable ground. The 2026 Frontiers in Sports and Active Living study by Shen and colleagues found that people with chronic ankle instability showed larger postural sway and higher sensorimotor cortical activation than uninjured people specifically when standing on an unstable surface, not on a stable one, which lines up with what many clinicians see in practice: it is the uneven ground, not flat ground, that exposes a previously injured ankle.

How to mitigate these risks

• Start with walking, not running, and keep the first few sessions short, on the order of ten to fifteen minutes.
• Choose firmer, wetter sand near the waterline for early sessions rather than soft, dry, loose sand further up the beach, since it moves less under the foot while you adapt.
• Keep shoes on for the first sessions if you have any Achilles or calf history, and only progress to barefoot work gradually once the calf complex has adapted, since barefoot sand running showed the highest anaerobic energy cost in the Pinnington and Dawson data.
• Avoid stacking a new sand session on top of an already heavy training week, since the injury risk comes from the total load exceeding the tissue’s current capacity, not from sand alone.
• If you have a history of ankle sprains, add specific balance and ankle-stability work before and alongside sand sessions rather than relying on the sand itself to provide that training.

Benefits vs. Risks at a Glance

Sand vs. Firm-Surface Training

A Sensible Progression for Beginners

The research consistently points in the same direction: sand training works well when it is added gradually and specifically, not when it replaces a chunk of normal training overnight. A simple, conservative four-week on-ramp looks like this.

Checklist: Starting Sand Training Safely

Worked Example: Adding Sand Sessions to a Running Routine

Common Mistakes

What Sports Medicine Researchers Say

Researchers who study surface effects consistently frame sand as a distinct training tool with its own dosing requirements rather than a simple substitute for firm-ground work. Binnie and colleagues, writing the 2014 review in the Journal of Sports Sciences, note that while sand exercise carries significant physiological and biomechanical differences compared with grass, evidence also suggests that training adaptations unique to sand can positively influence firm-ground performance, and that using sand strategically may allow athletes to achieve greater training adaptation while reducing the injuries that often accompany heavy training blocks on firm surfaces. They are careful to add that further research is still needed across a wider range of training types and outcomes.

On the injury-management side, the clinicians interviewed in the 2022 Sports Medicine – Open study by Green and colleagues emphasize that calf muscle strain injuries are unique compared with other muscle strains, and that ongoing monitoring of an athlete’s calf capacity and their response to loading, rather than a fixed set of rules, gives the most accurate read on risk. Applied to sand training, that supports an individualized approach: someone with a strong, well-conditioned calf complex can likely progress faster than someone returning from a prior strain, and neither should follow a generic program built for the other.

On performance, the most recent controlled trial in this area, published in the Journal of Sports Science & Medicine in 2026 by Yan and colleagues, found that collegiate soccer players who added sand-based repeated-sprint training alongside their normal team sessions for six weeks showed greater improvements in jump performance and sprint fatigue resistance than a comparable grass-based group, while aerobic adaptations were similar between surfaces. The consistent thread across this research is that sand training earns its benefits when it is added deliberately, in a measured dose, alongside rather than instead of a broader training plan.

Key Takeaways

Frequently Asked Questions

References