Threat and suppression probabilities

Perhaps a few variables could decide the outcome. All are deducted from the base 72% probability derived from his current age. Possibly...

Arnold's complicated heart structure: 53% reduction of threat probability.

Age difference, less resistance to impact and lower stamina: 47% reduction of threat probability.

Arnold had to trained himself, when he was young. so, he keep himself fit as fiddle at his age. he know what he doing, so, he can diet everyday and he do weight to weight. he consistly probably keep in shape for his next movie role.