An Australian Jew who served in Israel's elite Sayeret Golani counter-terror unit has broken a Guinness World Record for strength.

143-pound Sydney resident Jarryd Rubinstein, 26, registered 25 muscle-ups last week. Muscle-ups are a combination of a chin-up and a dip in which the body is raise and lowered with straight arms. The previous record for muscle-ups was 15

Jarryd Rubinstein, 26, from Sydney, last week registered 25 muscle-ups – a combination of a chin-up and a dip in which the body is raised above the bar with the arms straightened. The previous record was 15.

Though Rubinestein trains regularly at Bondi Beach, he works in wealth management.