Shona sustained an injury during a military training exercise which resulted in a below knee amputation in 2018. Having never skied prior to injury, she learned to ski in Bavaria through the Battle Back programme, an MoD-funded initiative providing adventurous training opportunities to wounded, injured and sick service personnel.

Subsequently, Shona was given the opportunity to join the Armed Forces Para-Snowsport Team where she gained her first experiences of ski racing at military alpine skiing championships. Shona began to race competitively in 2019 and by the end of the 2019/20 season had won 3 gold medals at the British Championships, 2 gold medals at the Europa Cup finals and finished 3rd overall in the Europa Cup.