Differences in Influencing Factors for Fall Risks During Descent on Mount Fuji: A Comparison of the Fujinomiya and Yoshida Routes

Abstract

Introduction

Mount Fuji has four-distinct routes, each with unique characteristics. However, no studies have examined how different routes influence falls and related factors during descent.

Methods

We conducted a questionnaire survey of 463 participants who descended Mount Fuji via the Fujinomiya route and compared the results with data from our 2021 study on the Yoshida route (n = 551). The survey collected information on sex, age, height, body weight, luggage weight, experience on Mount Fuji and other mountains, use of a tour guide, single-day climb or overnight stay, awareness of downhill trail conditions (volcanic gravel, long distance, and fall risk), use of trekking poles, shoe type, shoe sole condition, and self-reported fatigue.

Results

The fall rate was higher on the Fujinomiya route (271/463, 59%) than on the Yoshida route (232/551, 42%). Route-specific factors influencing fall risk included interactions between route and trekking pole use, shoe type, and fatigue level. On the Fujinomiya route, climbers not wearing hiking shoes or mountaineering boots had a higher fall risk. However, on the Yoshida route, fall risk was lower in climbers who used trekking poles and reported less fatigue. In contrast, on the Fujinomiya route, fall risk was unaffected by trekking pole use or fatigue level, while on the Yoshida route, shoe type had no impact.

Conclusion

These findings suggest that route-specific precautionary measures may be necessary for climbers on the Yoshida and Fujinomiya routes.