Improving Strength and Balance for Long-Term Care Residents At Risk for Falling: Suggestions for Practice

Frequency, Time of Sessions, Duration of Program

In our description of positive trials, exercise was performed on 2 to 3 days per week for 20 to 75 minutes per session, for periods ranging from 4 to 52 weeks (Table 1).

Intensity

For the trials including balance exercises, one trial described the intensity as resident-specific [37] and another as individualized [33]. Two studies did not describe the intensity of their balance exercises [31,34]. The intensity of strength exercises included in the positive trials was individualized for one of the trial [29]. Two trials had participants complete 2 to 3 sets of 10 repetitions [32,35], with one indicating an intensity of 12–13 or “somewhat difficult” on the Borg Rating of Perceived Exertion Scale [32] and the other using a 10-rep max [35]. Two studies described their strength exercises as progressive [31,37], and one at a moderate to high intensity [30]. Lord et al prescribed 30 repetitions of each strength exercise [34].

Delivery of Intervention

Exercise was delivered in a group setting for 4 of the trials [31,32,34,36], individually for 2 of the trials [26,29], and the setting was not described for one of the trials (Table 1) [30]. Finally, only 3 of the 7 articles reported the professional delivering the intervention: one was research staff [29], one was geriatric nurses [32], and one was exercise assistants supported by a physiotherapist [31].

Discussion

There is limited evidence to support the use of strength and balance exercise as a single intervention to prevent falls in LTC. However, exercise should be included as part of a multifactorial falls prevention program. Trials that had a positive effect on decreasing falls training used dynamic balance exercises in standing, functional training, and progressive resistance training on 2 to 3 days per week, for 20 to 75 minutes per session, over 4 to 52 weeks. The intensity of balance exercises was individualized, and strength exercises were described as somewhat difficult or performed at a moderate to high intensity. Exercise was performed in a group or individually, and was delivered by research staff, geriatric nurses, exercise assistants supervised by physiotherapists, or more frequently, it was not reported who delivered the intervention.

Balance Training

Our work suggests that standing, dynamic balance exercises may be best to decrease falls. Example balance exercises include reducing the base of support (eg, standing with feet together instead of apart, or tandem with one foot in front), moving the center of gravity and control body position while standing (eg, reaching, weight shifting, stepping up or down), and standing without using arms for support or reducing reliance on the upper limbs for support (eg, use one hand on a handrail instead of two, or two fingers instead of the whole hand) [17]. It is well established that balance training programs, especially those including challenging exercises, can prevent falls in community-dwelling older adults [17]. However, the relationship is not as clear in LTC.

Strength Training

Reduced muscle strength has been identified as an important risk factor for falls [38]. There are also many psychological and metabolic benefits to strength training [39]. To induce change in muscular strength, resistance exercises need to be challenging and progressive. Our work suggests that strength training that is effective at decreasing falls is functional and progressive, and is completed at a moderate to high intensity. A resident should be able to do a strength exercise for one to two sets of 6 to 8 repetitions before being fatigued [40]. Once the resident can complete two sets of 13 to 15 repetitions easily the exercise should be progressed. Residents who are particularly deconditioned may need to begin with lower intensity strength exercises (eg, only do one set, with a lower resistance and progress to a higher resistance) [40]. Residents should perform resistance exercises for all major muscle groups [40]. Progression could include increasing the number of sets (eg, increase from one to two sets), the resistance (eg, holding dumbbells while squatting), or the intensity of the exercise (eg, squat lower or faster) [41].

Implementing Exercise Programs in LTC

Implementation of exercise programs into LTC homes should consider the dose of exercise (eg, time and frequency of sessions, duration of program), if they are delivered in a group or individual setting, and who is delivering them. First, trials included in this paper suggest that strength and balance exercises to prevent falls were delivered 2 to 3 times per week, for 20 to 75 minutes per session, over 4 to 52 weeks. Second, previous work has established that exercise programs delivered on 2 to 3 days per week over a period of more than 6 months are most effective at reducing falls in LTC [20]. Finally, a recent task force report from an international group of clinician researchers in LTC recommends twice weekly exercise sessions lasting 35 to 45 minutes each [40]. Therefore, strength and balance exercises to prevent falls in LTC should be delivered at least twice per week, for at least 20 minutes, for greater than 6 weeks’ duration.