Table 2

 Calculation of total climbing intensity scores

Age (years)Average number of climbing days per yearAverage grade of climbingScore per decade
Example25Very severe
−20
21–3070Extreme 3 ( = 12)70×12 = 840
31–4070Extreme 3 ( = 12)70×12 = 840
41–5050Extreme 1 ( = 11)50×11 = 550
51–60
61–70
71–80
81–90
90+
Total climbing intensity score2230