Is Low-load Resistance Training With Blood Flow Restriction Feasible During Rehabilitation of Military Personnel With Lower Limb Injuries? Phase One RCT.

Inclusion Criteria: * Serving UK military personnel, * Aged 18-55, * Has unilateral lower limb injury whereby pain is the primary limiting factor hindering progression, as diagnosed by relevant consultant and team, * Reduced occupational employability and function, * Scheduled to attend DMRC Stanford Hall for 3 week residential rehabilitation course. Exclusion Criteria: MSK-Specific Exclusion Criteria * Any medical contraindication related to BFR\* * Non-musculoskeletal or serious pathological condition (i.e. Inflammatory arthropathy, infection or tumour) * Spinal or referred pain from non-local pain source * Any pre-diagnosed physical impairment or co-morbidities (including cardio-vascular disease) precluding the safe participation in the rehabilitation programme and/or assessment procedures * Corticosteroid or analgesic injection intervention to the affected area within the previous 7 days * Currently pregnant, or have not yet completed a return to work assessment following the birth of your child. \*Medical-Related Exclusion Criteria * History of cardiovascular disease (hypertension, peripheral vascular disease, thrombosis/embolism, ischaemic heart disease, myocardial infarction), * History of the following musculoskeletal disorders: rheumatoid arthritis, avascular necrosis or osteonecrosis, severe osteoarthritis * History of the following neurological disorders: Alzheimer's disease, amyotrophic lateral sclerosis, peripheral neuropathy, Parkinson's disease, severe traumatic brain injury, * Varicose veins in the lower limb, * Acute viral or bacterial upper or lower respiratory infection at screening, * Known or suspected lower limb chronic exertional compartment syndrome (CECS) (tourniquet raises intra-compartmental muscle pressure), * Surgical insertion of metal components at the position of cuff inflation, * History of any of the following conditions or disorders not previously listed: diabetes, active cancer, * History of elevated risk of unexplained fainting or dizzy spells during physical activity and/or exercise that causes loss of balance, * Increased risk of haemorrhagic stroke, exercise induced rhabdomyolysis, * Currently pregnant.