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Table 4 Characteristics of the included studies (continued)

From: Neuromuscular training to enhance sensorimotor and functional deficits in subjects with chronic ankle instability: A systematic review and best evidence synthesis

Author

Study Population

Presence

of MI

Groupings/Intervention

Outcome Measures

Significant Findings

Within Group Effect Sizes

Between Group Effect Sizes

Eils & Rosenbaum, 2001 [22]

30 subjects (18 male, 12 female) with 48 unstable ankles

Not specified

Training group (n = 20, 31 unstable ankles) - multi-station proprioceptive exercises once per week × 6 weeks

Control group (n = 10, 17 unstable ankles) - no intervention

Passive JPS was assessed for 10° and 20° of dorsiflexion, and 15° and 30° of plantarflexion

Postural Sway in M/L and A/P directions as well as sway distance was assessed in SLS

MRTs of TA, PL, and PB following a sudden inversion perturbation

Frequency of recurrence at one year follow up

In the exercise group the results showed significant improvements in JPS (except for 10° of DF), postural sway measures, as well as a significant increase in MRTs for PL and PB

A significant reduction in frequency of ankle sprains at one year follow up was also noted within the exercise group

JPS at 20° DF: 0.71; 95% CI (1.22-1.68)

JPS at 15° PF: 0.90; 95% CI (1.6-2.2)

JPS at 30° PF: 0.86; 95% CI (1.87-2.43)

Mean Error: 0.98; 95% CI (1.57-1.93)

Postural Sway, std dev M/L: 0.26; 95% CI (4.14-4.66)

Postural Sway, max sway M/L: 0.48; 95% CI (20.01-22.69)

Postural Sway, total sway distance: 0.41; 95% CI (423.66-498.64)

MRT of PL: 0.50; 95% CI (60.96-65.44)

MRT of PB: 0.54; 95% CI (66.4-70.9)

No significant between group difference was observed

Kaminski et al, 2003 [32]

38 (22 men, 16 women) subjects with FAI

Not specified

Strength training group - T-band strengthening of invertors & evertors 3 times per week × 6 weeks

Proprioception training group - "T-band kicks" 3 times per week × 6 weeks

Coupled strength & proprioception group - both exercise protocols combined

Control group no intervention

Isokinetic strength measures of average torque and peak torque eversion to inversion (E/I) ratios, calculated at 30°/sec and 120°/sec

No significant differences in average torque or peak torque E/I ratios for any of the groups

No significant within group effect was observed

No significant between group difference was observed

  1. MI = mechanical instability; FAI = functional ankle instability; JPS = joint position sense; A/P = anterior-posterior; M/L = medial/lateral; SLS = single leg stance; MRT = muscle reaction time; TA = tibialis anterior; PL = peroneus longus; PB = peroneus brevis