Can jumping and lifting at home save hip bone in amputees?

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Current or previous British Armed Forces Personnel who are members of the ADVANCE Study (Bennett et al., 2020) * Male * Aged ≥ 18 years and ≤ 55 years * History of unilateral below knee limb loss due to trauma * Ambulating with their current prosthetic limb for a minimum of six months * Full-time prosthesis wearer (i.e., wearing the prosthesis every day, for most of the day, removing it mainly for sleeping or when resting for extended periods) * Able to walk independently using a prosthetic limb * Able to perform jumping activities on the prosthetic limb * Able to communicate in English * Access to the internet and a computer/smartphone * Able to drive/be driven to and from the testing location for the purpose of transporting the exercise equipment provided by the research team Exclusion Criteria: * Additional limb loss of the upper and/or lower limb other than the transtibial limb loss * Cardiovascular disease, diabetes, neurological injury * Sickle cell disease * Neurodegenerative disease * Limb loss as a result of a vascular condition * Orthopaedic or neurological issues in the intact/non-amputated limb * Additional neuromusculoskeletal pathology which may affect walking * Pain, irritation, swelling, or skin complaints in the residual limb which inhibit prosthetic use * Diseases affecting bone metabolism (other than osteoporosis/osteopenia; for example, osteomalacia, Paget's disease, hyper/hypoparathyroidism, osteogenesis imperfecta) * Traumatic head injury resulting in cognitive disability * Lack of capacity to give consent * Any contraindications to exercise and/or resistance training * Continuous immobilisation for seven days or more in the month prior to attendance * Use of assistive walking device when utilising the, other than a prosthetic limb * Unable to regularly attend the supervised training program