Why Lateral Exercises Like Skaters Are Essential for Runners Over 50 to Maintain Bone Health and Stability.

For the dedicated runner, the milestone of 50 years of age often marks a shift in perspective, moving from a pursuit of personal bests to a focused strategy for longevity. The primary objective for many in this demographic is deceptively simple yet physiologically complex: to keep running for as long as possible. Central to this goal is the preservation of skeletal integrity. As the human body matures, it undergoes a natural decline in bone mineral density, a process that can accelerate significantly without targeted intervention. This decline often begins as osteopenia, a condition characterized by lower-than-normal bone density that, if left unchecked, can progress into osteoporosis. In the latter state, bones become porous, brittle, and highly susceptible to fractures from even minor stresses. While running is frequently celebrated as a bone-strengthening activity, emerging research and clinical expertise suggest that the linear nature of the sport may leave critical areas, such as the hips, vulnerable if not supplemented with multidirectional movement.

Running is fundamentally a high-impact, weight-bearing exercise, which places it at the top of the list for activities that promote osteogenesis—the formation of new bone. When the foot strikes the ground, the resulting mechanical stress signals the body to deposit minerals into the bone matrix, a principle known as Wolff’s Law. However, running is also a highly repetitive, sagittal-plane activity, meaning the body moves almost exclusively in a straight line. While this is excellent for the tibia and the femur, it may not provide the varied stimulus required to fortify the hip joints comprehensively. A small but influential study published in the journal Archives of Osteoporosis highlighted this discrepancy. Researchers examining older athletes with an average age of 71 found that regular sprinters exhibited significantly higher bone density in their hips compared to non-runners. Interestingly, the same benefit was not as pronounced in regular endurance runners. The distinction lies in the intensity of the impact and the explosive nature of sprinting, which demands greater lateral stabilization and force absorption than the steady, rhythmic gait of long-distance running.

The physiological demand of stabilization is where the hip musculature plays a starring role. Every time a runner’s foot makes contact with the pavement, the hips must work overtime to control side-to-side movement and maintain a level pelvis. Dr. Pamela Mehta, a board-certified orthopedic surgeon and founder of Resilience Orthopedics in Los Gatos, California, emphasizes that this lateral control is the "silent partner" of a successful stride. According to Dr. Mehta, the hips are responsible for keeping the pelvis stable and ensuring the knee remains properly aligned throughout the gait cycle. If a runner focuses solely on forward motion and neglects lateral strength training, they miss a fundamental component of structural stability. This neglect can lead to a "weak link" in the kinetic chain, increasing the risk of common overuse injuries such as iliotibial (IT) band syndrome, runner’s knee, or even stress fractures in the femoral neck.

To bridge the gap between linear running and comprehensive bone health, experts increasingly recommend the "skater" exercise. This movement is a powerhouse for runners because it mimics the single-leg loading inherent in running while introducing a lateral, plyometric element. "Skaters combine single-leg loading, lateral movement, and a plyometric element, so you’re training strength, balance, and impact tolerance all at once," Dr. Mehta explains. The exercise involves leaping sideways from one foot to the other in a controlled, explosive manner, much like a speed skater on ice. For a sport where the athlete is essentially jumping from one leg to the other thousands of times per hour, the ability to absorb and redirect force laterally is invaluable.

The benefits of the skater extend beyond the skeletal system into the realm of functional biomechanics. Ryan Schultz, a Doctor of Physical Therapy at Orlando Health Rehabilitation and Sports Medicine Center, notes that skaters are particularly effective at strengthening the lateral hip musculature, including the gluteus medius and minimus. Strengthening these muscles is the primary defense against "hip drop," a common gait abnormality where the pelvis dips on the side of the swinging leg. Hip drop creates a cascade of inefficiency, forcing the lower back and knees to compensate for the lack of pelvic stability. By mastering lateral movements, runners can ensure their stride remains efficient and powerful. Furthermore, Schultz points out that this type of functional strength has "real-world" applications for older adults, such as the ability to maintain balance on uneven surfaces or the muscular power required to rise from the floor easily.

For runners of any age, but especially those over 50, the skater exercise offers a trifecta of benefits: lateral hip strength, single-leg control, and improved proprioception (the body’s ability to sense its position in space). This translates into what Dr. Mehta calls "injury resilience." However, implementing this move requires a disciplined approach to form and progression. To perform a skater correctly, one should start in a slight squat, leap to the right, and land softly on the right foot while the left leg sweeps behind. The key is to "own the landing"—staying tall, keeping the pelvis level, and ensuring the knee tracks directly over the foot before leaping back in the opposite direction. Schultz advises beginners to start much slower than they think is necessary. The goal is not speed, but the quality of the deceleration and the stability of the joint upon impact.

Safety is paramount, particularly for those who may already be dealing with compromised bone density. Dr. Mehta cautions that individuals who have been diagnosed with osteoporosis or who have a history of fragility fractures must seek medical clearance before introducing high-impact plyometrics like skaters. "It has to match where you are," she says. For those not yet ready for the explosive nature of the skater, the lateral lunge serves as an ideal regression. The lateral lunge provides the same side-to-side movement pattern and engages the same muscle groups but removes the high-impact "flight" phase. By stepping wide to the side and sinking the hips back while keeping the other leg straight, an individual can build the necessary foundation of lateral strength without overstressing the joints. As strength and balance improve, one can progress to small side-to-side hops before eventually graduating to full skater bounds.

Integrating these exercises into a weekly routine does not require a massive time commitment, but it does require consistency. Dr. Mehta suggests performing skaters or lateral lunges one to two times per week. They can be incorporated into a dynamic warm-up to "prime" the nervous system before a run, or included in a dedicated strength-training session. The recommendation for beginners is two sets of six to eight repetitions per side, eventually progressing to three sets of twelve as form becomes second nature. For the aging runner, the mantra should always be "quality over quantity." A few clean, controlled repetitions are far more beneficial for bone and joint health than a high volume of sloppy movements that could lead to acute injury.

The broader context of this training philosophy is the recognition that running alone is often insufficient for holistic physical health as we age. Ryan Schultz advocates for at least two dedicated strength sessions per week, lasting 30 to 45 minutes, covering all major muscle groups. For experienced runners, he suggests a "hard-hard" strategy: pairing a challenging run in the morning with a strength session in the afternoon. This approach allows for a "polarized" training schedule where hard days are truly taxing, and recovery days are truly restorative. This prevents the "gray zone" of training where an athlete is perpetually fatigued but never fully challenged, a state that often leads to stagnation and injury.

Ultimately, bone health for the runner over 50 is a multi-faceted puzzle. While lateral exercises like skaters provide a crucial piece by offering multidirectional loading and hip stability, they must exist within a broader lifestyle framework. This includes a diet rich in calcium and vitamin D—the building blocks of bone—as well as adequate protein to support the musculature that protects those bones. Furthermore, recovery becomes a non-negotiable component of the training cycle. As we age, the remodeling process of bone and the repair of muscle tissue take longer. By respecting the body’s need for rest and diversifying the types of stress placed upon the skeleton, runners can effectively fight back against the natural decline of aging. Adding a lateral dimension to a linear sport is more than just a workout tweak; it is a strategic investment in a future of miles, trails, and health.