Please select the arm or intervention descriptions that belong to the clinical trial below.
Title: Effects of Vitamin D and Exercise in Preventing Falls of Elderly Women
Brief Summary: The aim of the study is to investigate the effects of exercise and vitamin D supplementation on reducing falls and injuries in community-dwelling, independent-living women aged 70-79 years of age. The investigators will test the following hypothesis:

1. Exercise including strength, balance and mobility training will improve muscle functioning and body balance, and thus reduce falls by 30% compared with non-exercisers.
2. Vitamin D intake will improve muscle functioning and thus prevent falls by 30% compared with placebo.
3. Together vitamin D and exercise have a stronger influence on fall prevention than either used alone.
4. Training improves mobility functions and bone health.
5. Supervised training twice a week with daily home training will improve physical functioning thus resulting in reduced fear of falling.
6. Reduced fear of falling and improved physical functioning help older people to stay physically active, which further improve their quality of life.


Options:
A: Arm Label: ActiveStep; Type: ACTIVE_COMPARATOR; Interventions: Device: ActiveStep Treadmill | Arm Label: Standard physical therapy; Type: ACTIVE_COMPARATOR; Interventions: Other: Physical Therapy | Intervention Type: DEVICE; Name: ActiveStep Treadmill; Assigned to Arm(s): ActiveStep | Intervention Type: OTHER; Name: Physical Therapy; Assigned to Arm(s): Standard physical therapy
B: Arm Label: 1; Type: EXPERIMENTAL; Interventions: Behavioral: Exercise Training | Arm Label: 2; Type: EXPERIMENTAL; Interventions: Behavioral: Exercise training | Arm Label: 3; Type: EXPERIMENTAL; Interventions: Behavioral: Exercise training | Intervention Type: BEHAVIORAL; Name: Exercise Training; Assigned to Arm(s): 1 | Intervention Type: BEHAVIORAL; Name: Exercise training; Assigned to Arm(s): 2 | Intervention Type: BEHAVIORAL; Name: Exercise training; Assigned to Arm(s): 3
C: Arm Label: 2; Type: NO_INTERVENTION; Interventions: Behavioral: Exercise | Arm Label: 1; Type: EXPERIMENTAL; Interventions: Behavioral: Exercise | Intervention Type: BEHAVIORAL; Name: Exercise; Assigned to Arm(s): 1, 2
D: Arm Label: exercise with vitamin D 800 IU/d; Type: EXPERIMENTAL; Interventions: Dietary Supplement: exercise and vitamin D supplementation | Arm Label: exercise with placebo; Type: ACTIVE_COMPARATOR; Interventions: Dietary Supplement: exercise and vitamin D supplementation | Arm Label: no exercise with vitamin D 800 IU/d; Type: ACTIVE_COMPARATOR; Interventions: Dietary Supplement: exercise and vitamin D supplementation | Arm Label: no exercise with placebo; Type: PLACEBO_COMPARATOR; Interventions: Dietary Supplement: exercise and vitamin D supplementation | Intervention Type: DIETARY_SUPPLEMENT; Name: exercise and vitamin D supplementation; Assigned to Arm(s): exercise with vitamin D 800 IU/d | Intervention Type: DIETARY_SUPPLEMENT; Name: exercise and vitamin D supplementation; Assigned to Arm(s): exercise with placebo | Intervention Type: DIETARY_SUPPLEMENT; Name: exercise and vitamin D supplementation; Assigned to Arm(s): no exercise with vitamin D 800 IU/d | Intervention Type: DIETARY_SUPPLEMENT; Name: exercise and vitamin D supplementation; Assigned to Arm(s): no exercise with placebo

Answer: D