Club career As youth player, Hegh Arntzen represented the clubs Stord HK, Herkules and Gulset IF. At senior level she played for
Gjerpen IF from 2010 to 2014. From 2014 to 2017 she represented the club
Byåsen IL, and then
Vipers Kristiansand from 2017 to 2021. With Vipers, she won the
Norwegian League four times, in the seasons 2017/2018, 2018/2019, 2019/2020, and 2020/2021, as well as winning the Norwegian Cup four times. With Vipers, she also won the
2020–21 Women's EHF Champions League. She started playing for
CSM București from 2021. Her achievements with the national team include winning a gold medal at the
2021 World Women's Handball Championship, having won a silver medal in
2017. She also won a bronze medal at the
2016 Summer Olympics, and became European champion in
2014,
2016,
2020 and
2022. and in the
2014 Women's Junior World Handball Championship, placing 9th. ==Personal life==