Does hands-on guarding influence performance on the functional gait assessment?

Key points

1. 01The Functional Gait Assessment (FGA) is a standardized walking test used to estimate fall risk in older adults.
2. 02Researchers compared contact guarding (therapist holding the gait belt) with standby guarding (hand near but not touching) in the same 23 people.
3. 03FGA scores were essentially identical between the two guarding methods (t = 0.15, P = .882).
4. 04Not a single participant noticed any difference in how they were guarded between trials.
5. 05Therapists can use a safer hands-on technique during the FGA without expecting it to distort the score.

How it was conducted

Design

Within-subjects comparison; each participant did 2 FGA trials, one with contact guarding and one with standby guarding, order alternated between participants

Participants

23 community-dwelling older adults (16 women, 7 men), mean age 73.6 years (SD 6.2), range 63 to 87

Guarding

All trials guarded by one physical therapist with 19 years of experience; both conditions used a gait belt, but only contact guarding involved holding the belt and lumbar region

Scoring

All trials video recorded and scored by 2 raters blinded to study purpose; views standardized to conceal which guarding method was used

Primary outcome

FGA total score (0 to 30 scale) compared between contact and standby guarding, plus participant-perceived difference between trials

What they found

• FGA scores did not differ significantly between contact and standby guarding (t = 0.15, P = .882, corrected d = 0.02; 95% CI, -1.11 to 1.29).
• Interrater reliability was excellent under both conditions (contact guarding ICC = 0.949; standby guarding ICC = 0.935).
• Mean FGA scores were similar across methods (Rater 1: contact 20.7 [SD 5.4], standby 20.4 [4.7]; Rater 2: contact 19.8 [6.4], standby 19.9 [6.0]).
• Both score distributions were normal (Shapiro-Wilk: contact W = 0.941, P = .186; standby W = 0.964, P = .544).
• 18 of 23 participants (78%) perceived no difference between the trials, and none reported noticing a difference in guarding method.
• Among those who felt a difference, 15 of 23 (65%) felt they performed better on the second trial, 3 (13%) felt worse due to tiredness, and 5 (22%) felt the same; no falls and no injuries occurred.

Limitations

• Only one physical therapist guarded everyone, so the findings may not generalize to therapists with different skill or experience levels.
• All participants were community-dwelling older adults, and more dependent or impaired patients might be more influenced by the guarding method.
• The sample was small (23 participants) and used a single trial per condition, limiting statistical power.
• Contact was a single low point on the lumbar region, which may have reduced any effect on balance compared with higher or multiple contact points.

Why it matters

For patients

You can trust your FGA fall-risk score whether the therapist lightly holds your gait belt or just stays close, and you likely will not even notice which method is used.

For clinicians

You can use hands-on contact guarding on the FGA for safety in community-dwelling older adults without expecting it to bias the score, though caution is warranted with more impaired patients.

For readers

This is the first published comparison of guarding methods on a standardized fall-risk test, offering early reassurance that guarding choice does not distort FGA results.