Please select the eligibility criteria that correspond to the clinical trial below.
Title: Randomized ActiveStep Comparative Effectiveness Trial
Brief Summary: The investigators are conducting a multi-center randomized prospective trial comparing a standard physical therapy gait and balance program with a gait and balance program that includes the ActiveStep™ treadmill.

Subjects will be randomized to either have the ActiveStep™ as part of their therapy or to have their therapy without it. Data will be gathered from session notes, medical records and short interviews with the subjects at baseline and every 3 months over the telephone for the duration of the study.


Options:
A: Inclusion Criteria:

* 2 or more falls within 6 months prior to the beginning of the study
* Aged 60-85 years
* Able to walk for 5 minutes unassisted
* Adequate hearing and vision capabilities.
* Stable medication for the past 1 month and anticipated over a period of 6 months

Exclusion Criteria:

* Psychiatric co-morbidity
* Clinical diagnosis of dementia or other severe cognitive impairment (MMSE\<24)
* History of stroke, traumatic brain injury or other neurological disorders (other than PD and MCI, for those groups)
* Acute lower back or lower extremity pain, peripheral neuropathy, rheumatic and orthopaedic diseases
* Unstable medical condition in the past 6 months
* Unable to comply with the training
* Interfering therapy
B: Inclusion Criteria:

1. Age of 65 years or older
2. Living at home
3. Able to walk without personal assistance and no other physical limitations that can limit participation and adherence, particularly to exercise intervention programme
4. Meet criteria for frailty

Operational definition of frailty.

The participants are assessed and classified on the level of frailty by the following measures and criteria:

1. Weight loss
2. Slowness
3. Poor balance and weakness assessed by chair stand test
4. Muscle weakness assessed by hand grip and knee extension strength
5. Exhaustion, fatigue or low endurance
6. Low physical activity

Exclusion Criteria:

1. Member of household already enrolled
2. Dementia or cognitive impairment, major depression or other psychotic disorders
3. Severe audio-visual impairment
4. Progressive, degenerative neurologic disease like Parkinsonism, fits/ epilepsy, etc
5. Rapidly progressive or terminal illness under palliative care with life expectancy less than 12 months
6. History of alcohol abuse or any other substance abuse
7. Severely affect muscle/joint dysfunction resulting in disability
8. Hospital admission in the past 3 months
9. Regular physical training or physiotherapy or current participation in a vigorous exercise or weight-training program more than once per week
10. Undergoing therapeutic diet incompatible with nutritional supplementation
11. In the opinion of research clinician, the intervention is deemed to be potentially hazardous for the subject, such as serious cardiac and pulmonary disease.
C: Inclusion Criteria:

* Age ≥ 65 years
* Seen in the Emergency Department for a fall or injury related to a fall
* Able to follow 3 step commands
* Singapore citizen or Permanent Resident
* Living at home upon discharge
* Provision of informed consent
* If admitted to the hospital, the illness or disability is one from which they are expected to recover basic ADLs or weight bearing of the lower extremity within the next month

Exclusion Criteria:

* Those patients with severe physical and/or mental impairments which preclude participation in a program of physical therapy (as determined by a primary physician) will NOT be eligible for participation.
* Unable to participate in the exercise program due to conflicting schedules (e.g. full-time employment, on dialysis)
* Serious life limiting illness
* Patients seen at ED due to road traffic accidents
* Unable to walk even with assistance
* Not community dwelling prior to ED visit
* Total blindness
* Needs emergency inpatient surgery and, if admitted to the hospital, the illness or disability is one from which they are not expected to recover basic ADLs or weight bearing in the lower extremity within the next one month.
D: Inclusion Criteria:

* Age 65 and over
* Referred to physical therapy for balance training

Exclusion Criteria:

* Age \< 65
* Unable to use treadmill
* Severe vertigo
* Not a candidate for gait/balance PT
* Not competent to consent to research

Answer: D