OPEN - issue YZABP-181: HT - Fitness 
https://illuminadev.co.uk/jira/browse/YZABP-181

Fix the retrieval of the units from the Length
OPEN - issue YZABP-181: HT - Fitness 
https://illuminadev.co.uk/jira/browse/YZABP-181

Include "activity", as a codable value
OPEN - issue YZABP-181: HT - Fitness 
https://illuminadev.co.uk/jira/browse/YZABP-181