Rapid rise of Hyrox and climbing
In late August 2024, a Hyrox indoor fitness race held in Sichuan Province went viral after participants were shown drenched in sweat and visibly worn out, sprinting hard to cross the finish line. Clips from the event flooded social media, with many users joking that the 1-kilometer intervals in the race felt like just a comma in a long sentence, emphasizing how physically demanding and tiring the entire process was. The Hyrox event, with its unique combination of endurance and strength training, caught public attention in a way that highlighted the intense effort required to complete it.
Hyrox is an indoor fitness event that blends 8 kilometers of running with eight functional workout stations, each featuring a different high-intensity exercise. These include burpees, sled pushing, sandbag lunges, and wall balls. The event is designed to be accessible to people from all fitness levels, which is one reason for its popularity. But despite its open nature, the race is not easy. Participants must seamlessly switch between running and strength-based tasks, often within short intervals, requiring a high level of physical fitness and mental endurance.
Injuries and limits
Oliver, a fitness enthusiast with over two years of gym experience, joined a Hyrox event after being inspired by videos on social media. During the race, he found his heart rate jumping to around 160 beats per minute between stations. This level of intensity surprised him, as he was used to training in a structured, focused way—like running one day and weightlifting another—without the sudden transitions and physical strain of high-intensity interval workouts. He quickly realized that the race pushed his body in a completely different way.
With more people taking up these new sports, the number of injuries is growing. Some participants in Hyrox events have been diagnosed with rhabdomyolysis, a serious condition caused by severe muscle breakdown. Rock climbing has also seen cases of fractures and other injuries. These incidents have sparked safety concerns, especially as more individuals attempt these activities without proper training or preparation. On Xiaohongshu, or RedNote, the Hyrox hashtag has already reached over 1.5 million posts and 290 million views, while the rock climbing hashtag has pulled in an impressive 2.05 billion views, showing the immense reach and influence of these sports on online platforms.
Fitness as social glue
For Oliver and many others, participating in sports like Hyrox and climbing is not just about fitness. It also serves as a bridge to connect with others, especially in busy urban areas where people often live far from their hometowns. By joining these activities, individuals form teams, train together, and sign up for competitions as a group, building a sense of community and shared purpose. Many of these participants come from urban middle-class backgrounds, and the social aspect is a key draw for them.
Xu Fuli, a top Hyrox competitor who has achieved strong results in women's categories, has spoken about the risks of pushing too hard in these events. She follows a strict training schedule and carefully evaluates her physical condition before deciding to compete. "People need to train smart and within their limits," Xu said, emphasizing the importance of proper preparation and understanding one's physical boundaries. Her experience and success are built on years of professional training and discipline.
Xu's message is clear: while these sports may look exciting and fun in social media posts, they can be extremely dangerous in reality. The rush to participate, driven by peer pressure or the desire for social validation, has led to growing concerns about safety in marathons, climbing, and other high-intensity events. Many people are unaware of the physical demands and risks involved, and they often underestimate how much training and preparation is needed to perform safely. As the popularity of these sports continues to grow, it is essential for participants to approach them with caution and respect for their own limits.

