Challenging fitness events such as Hyrox, CrossFit, and ultra-endurance trail runs have grown increasingly popular among middle-aged residents in Hong Kong, driven in part by the city’s achievement-oriented culture and the status associated with participation. However, health and fitness experts caution that many participants may be pushing their bodies beyond safe limits, risking injury and burnout amid a rising trend of what is being described as “extreme fitness FOMO” (fear of missing out).

Hyrox events, which are inclusive and open to all levels, have attracted a diverse range of participants eager to test their limits. Ant Haynes, a 36-year-old former rugby player and CrossFit Games athlete based in Hong Kong, acknowledges the enthusiasm surrounding such challenges but urges a more measured approach. "People start to lose sight of what they do on a daily basis. They’re a mum, they’re a dad, they have a family to look after. They have a job they have to actually... do," he noted, emphasizing the importance of balancing fitness goals with everyday responsibilities.

Leslie Evangelista, a 44-year-old physiotherapist specializing in midlife strength training, observes that many individuals adopt extreme training methods popularized on social media without considering their own physical condition or lifestyle. She points out the increased recovery needs and vulnerability of the midlife body compared to younger adults, explaining, “A 20-something can borrow from tomorrow and get away with it – they recover fast, their tendons are forgiving, their hormones are on their side. A midlife body keeps the receipts.”

Jean Woo, professor of gerontology and geriatrics at the Chinese University of Hong Kong, offers a more conservative perspective on fitness after middle age. She recommends regular moderate exercise—approximately 150 minutes per week that includes aerobic, resistance, and balance activities—as the ideal formula for health and functional independence beyond 40 or 50 years old. While she acknowledges that high-intensity events can be enjoyable social experiences, Woo cautions against participating in them solely for health benefits, stating it is “not a recommendation to participate in these activities for health reasons.”

Scientific studies support the notion that high-intensity interval training (HIIT) can provide cardiovascular benefits when properly tailored, but experts stress that progression, individualization, and recovery are critical. In Hong Kong, where long work hours, poor sleep, and chronic stress are common, additional intense exercise may overload the body’s stress response systems. Tricia Yap, founder of Limitless Gym, explains that psychological stress, sleep deprivation, and intense exercise accumulate, potentially leading to fatigue, injuries, and stalled improvement if adequate recovery is not prioritized.

Evangelista further highlights the physical toll of excessive training, citing common complaints such as shoulder irritation, knee pain, and lower back flare-ups caused by repetitive high-intensity movements. She describes this pattern as more punitive than productive, with “beast mode” becoming a form of self-imposed penance rather than sustainable training. Haynes adds that an overly aggressive regimen can lead to rapid progress but also fast burnout and injury, suggesting a gradual build-up of strength and conditioning is a safer approach for most newcomers, particularly those over 40.

Despite risks, the appeal of milestone events remains strong. Teresa Riddle, a 44-year-old trainer who recently participated in a Hyrox women’s relay, reported feeling unusually fatigued during the event and noted that several participants in her group became ill afterward. Still, she acknowledges the motivational benefits of preparing for such challenges, especially for middle-aged women, as the process helps build self-esteem and maintain consistent exercise habits.

Ultimately, experts agree that sustainable fitness in midlife relies on balancing ambition with realistic pacing and recovery, underscoring the value of foundational strength training and moderate, regular movement over pushing hard for performance in high-intensity competitions.