Gymnastics is a high-demand sport that strengthens bones, builds coordination, and improves flexibility, but it also carries real risks to joints, the spine, and hormonal health, especially when training volume is high or starts young. Whether gymnastics is “bad” for your body depends largely on how intensely and how long you train. Recreational gymnastics offers significant physical benefits with modest risk. Elite and competitive gymnastics, with its repetitive high-impact landings and extreme flexibility demands, can cause lasting damage if training isn’t carefully managed.
How Often Gymnasts Get Injured
Gymnastics has a meaningful injury rate compared to many sports. A 10-year observational study of collegiate gymnasts found 9.37 injuries per 1,000 athlete exposures for women and 8.78 for men. An “athlete exposure” is one practice or competition, so these numbers add up quickly over a season of daily training. Most injuries involve the lower body, particularly ankles, knees, and the lower back, because of the repetitive stress of landing from height.
The Achilles tendon is a particular concern. Women’s collegiate gymnastics has an Achilles injury rate roughly 10 times higher than all other collegiate sports combined. Among NCAA gymnasts surveyed, 17.2% reported at least one Achilles tendon rupture during their collegiate career. The vast majority of these ruptures, around 91%, happened on floor exercise, and 78% occurred specifically during back handspring takeoffs. The explosive push-off combined with years of repetitive loading makes this tendon especially vulnerable.
Spinal Stress Fractures
The lower back takes enormous force in gymnastics. Repeated hyperextension during backflips, walkovers, and dismounts concentrates stress on the vertebrae, and over time this can cause a small crack in the bone called spondylolysis. About 11% of female gymnasts develop this condition, most commonly at the lowest lumbar vertebra. One study of young gymnasts found a prevalence of 5.6%, with no cases progressing to the more serious slippage of vertebrae known as spondylolisthesis.
Spondylolysis often shows up as a persistent, dull ache in the lower back that worsens with arching movements. In many cases it heals with rest and physical therapy over several months, but it can become a chronic issue if training continues through the pain. For young gymnasts whose spines are still developing, this is one of the more important injuries to catch early.
Wrist and Growth Plate Concerns
Young gymnasts bear their full body weight on their hands hundreds of times per training session, and the wrist is one of the most common injury sites. In skeletally immature athletes, this repetitive loading can irritate or damage the growth plates at the end of the forearm bones. This condition, sometimes called “gymnast’s wrist,” causes pain during weight-bearing skills and, if ignored, can potentially affect normal bone growth in that area. The risk is highest in gymnasts who train heavily before their growth plates have fully closed, typically in the early to mid-teen years.
Bone Density: A Real Benefit
One of the strongest arguments in gymnastics’ favor is what it does for your skeleton. The high-impact loading that causes injury risk also triggers the body to build denser, stronger bones. Artistic gymnasts show bone mineral density 5% to 18% higher than non-gymnasts across the whole body, spine, and hip, depending on the skeletal site and the gymnast’s stage of development. At the forearm, the difference can be 10% to 15% higher. Even more striking, one study found that gymnasts had 157% greater bone strength at the wrist compared to non-athletes.
These benefits persist after retirement. Former gymnasts retain 22% to 32% greater estimated bone strength at the wrist and 24% greater strength at the lower leg compared to people who never trained. This is significant because higher bone density built during youth offers lasting protection against osteoporosis and fractures later in life. For recreational gymnasts who aren’t grinding through elite-level training volume, this skeletal benefit may be one of the most valuable long-term health outcomes of the sport.
Does Gymnastics Stunt Growth?
This is one of the most common fears parents have, and the evidence is reassuring. A comprehensive review in Sports Medicine concluded that adult height is not compromised by intensive gymnastics training. Gymnastics does not appear to slow the rate of growth, shorten the legs or torso, or delay the timing of the pubertal growth spurt.
The reason gymnasts tend to be short is simpler: the sport selects for smaller body types. Gymnasts of both sexes are typically shorter than average before they ever begin intensive training, and their parents tend to be shorter than the general population. Shortness is a familial trait that happens to be advantageous in a sport built around rotating, flipping, and supporting your own body weight. The same selection pressure explains why basketball players are tall. The sport doesn’t make them that way.
Energy Deficiency and Hormonal Disruption
A more serious and often invisible risk in gymnastics is Relative Energy Deficiency in Sport, or RED-S. This happens when a gymnast doesn’t eat enough to fuel both their training and their body’s basic functions. The calorie shortfall triggers a cascade of problems: the brain dials down reproductive hormone production, which in female athletes can lead to irregular or absent periods. That hormonal disruption, in turn, weakens bones, the very skeleton that gymnastics would otherwise strengthen.
Menstrual irregularities affect an estimated 20% of exercising females overall, with rates climbing much higher in sports that emphasize leanness. Beyond reproductive health, chronic energy deficiency can impair cardiovascular function, gut health, immune response, and psychological well-being. It also increases injury risk and slows recovery. RED-S is not unique to gymnastics, but the sport’s culture of aesthetic judging and emphasis on a lean physique makes it a persistent concern.
Eating Disorders and Body Image
The pressure to maintain a certain body type in gymnastics creates measurable risk for disordered eating. In a study of nearly 270 adolescent female gymnasts in Greece, 12.3% scored above the clinical threshold for eating disorder symptoms. Among competitive gymnasts specifically, the rate was 16.3%, more than double the 7.4% seen in recreational gymnasts. Broader research suggests eating disorder symptoms can affect anywhere from 5% to 45% of female athletes, with the highest rates in sports judged on appearance or requiring low body weight.
Competitive gymnasts also reported higher sport-related weight pressures than their recreational peers. These pressures can come from coaches, the scoring system, teammates, or the mirror-lined training environment itself. The combination of starting young, training in revealing clothing, and receiving subjective scores based partly on body lines creates conditions where unhealthy relationships with food and body image can take root.
Training Volume Is the Key Variable
Many of the risks above scale directly with how much a gymnast trains. Youth gymnasts commonly log double-digit hours per week, with some exceeding 15 hours during early adolescence. Research on young gymnasts found that training more than 8 hours per week at age 11 was a strong predictor of injury, correctly identifying injured versus uninjured athletes with high accuracy. The threshold rises slightly with age: about 8.5 hours at ages 12 and 13, roughly 10 hours at age 14, and about 13 hours at age 15.
Across age groups, injured gymnasts trained an average of about 20 hours per week compared to 15 hours for uninjured gymnasts. That five-hour difference may not sound dramatic, but it represents a meaningful increase in cumulative stress on growing bodies. For parents weighing the risks, training volume is the single most controllable factor. A gymnast training 6 to 8 hours a week gets most of the sport’s physical benefits with substantially less injury exposure than one training 20 or more.
The Bottom Line on Body Impact
Gymnastics isn’t inherently bad for your body. At moderate training levels, it builds exceptional bone density, strength, balance, and body awareness. At elite levels, the repetitive high-impact loading, extreme ranges of motion, and sheer volume of training create real risks: spinal stress fractures, Achilles tendon damage, wrist injuries in young athletes, and hormonal disruption from energy deficiency. The sport’s culture around body aesthetics adds psychological risks that compound the physical ones. How gymnastics affects your body comes down to intensity, duration, coaching quality, and whether the athlete is eating enough to support what they’re asking their body to do.