High-intensity treadmill training and self-management for stroke patients undergoing rehabilitation: a feasibility study

BACKGROUND

Physical activity undertaken by stroke survivors is generally low. This trial investigated the feasibility of delivering a high-intensity treadmill and self-management program to people with stroke undergoing inpatient rehabilitation and determine whether physical activity, walking ability and cardiorespiratory fitness could be increased.

METHOD

A phase I, single-group, pre-post intervention study was conducted with stroke survivors undergoing inpatient rehabilitation who could walk. Participants undertook a high-intensity treadmill and self-management program for up to 30 min, three times a week for 8 weeks under the supervision of their usual physiotherapist. Feasibility was determined by examining compliance, satisfaction and adverse events. Clinical outcomes were amount of physical activity, walking ability, and cardiorespiratory fitness collected pre-training (week 0), post-training (week 8), and at follow-up (week 26).

RESULTS

Forty stroke survivors participated, completing 10 (SD 6) sessions, 94% at the specified training intensity, with high satisfaction and no adverse events related to the intervention. At week 8, participants completed 2749 steps/day (95% CI 933 to 4564) more physical activity than at week 0. Walking distance increased by 110 m (95% CI 23 to 196), walking speed by 0.24 m/s (95% CI 0.05 to 0.42), and VO2 peak by 0.29 ml/kg/min (95% CI 0.03 to 0.56). At week 26, increases in physical activity, walking distance and speed, and cardiorespiratory fitness were maintained.

CONCLUSIONS

A high-intensity treadmill training program embedded within a self-management approach during inpatient rehabilitation appears feasible and potentially may offer sustained improvements in physical activity, walking ability, fitness, and quality of life. A randomised trial is warranted.

TRIAL REGISTRATION

This feasibility study was registered with the Australian New Zealand Clinical Trials Registry ( ACTRN12613000764730 ).

Effect of Customized Insoles on Gait in Post-Stroke Hemiparetic Individuals: A Randomized Controlled Trial

Background: Insoles have been widely applied to many diseases, but stroke involves complex problems and there is a paucity of research on the application of insoles in stroke patients. Aim: To evaluate the effect of customized insoles on gait in patients with hemiplegia. Design: A randomized controlled trial. Setting: Rehabilitation department of a hospital. Population: A total of 50 stroke patients were randomized into an experimental group (n = 25) or a control group (n = 25). Methods: Both groups received conventional gait training, which was conducted five times a week, every 40 min for four weeks and patients in the experimental group were required to wear customized insoles for at least 1 h per day for four weeks. The primary outcome measure was the Tinetti Gait Scale (TGS) and the secondary outcome measures were the plantar pressure test, 6-min walking test (6MWT), lower extremity Fugl-Meyer assessment (FMA-LE), Berg Balance Scale (BBS), and the modified Barthel index (MBI). Results: Compared to the control group, there were significant increases in the experimental group after four weeks (p = 0.014) and at the four week follow-up (p = 0.001) in the change in TGS, weight-bearing on the involved side (p = 0.012) or forefoot (p = 0.028) when standing, weight-bearing on the involved side (p = 0.01 6) or forefoot (p = 0.043) when walking, early stance phase (p = 0.023) and mid stance phase (p = 0.013) on the involved side, FMA-LE (p = 0.029), BBS (p = 0.005), and MBI (p = 0.009), but there were no differences in the late stance phase (p = 0.472) on the involved side when walking or in the 6MWT (p = 0.069). Conclusions: Customized insoles had great efficacy in enhancing gait performance in stroke patients.

Single-session training on an ascending treadmill slope: effects on gait parameters in persons with stroke. A pilot study

OBJECTIVE

Treadmill training with an upward incline could improve gait parameters altered in persons with stroke, especially lower limb flexion. This study aimed to determine the effects of a treadmill single-session training with a 10% upward incline on biomechanical gait parameters in persons with stroke.

METHODS

Fifteen persons with stroke-related hemiparesis performed a 20-min treadmill training session with a 10% ascending incline in this interventional pilot study. Spatiotemporal, kinematic and kinetic parameters were evaluated, overground, with a tridimensional optoelectronic system, before the session, immediately after and after a 20-min rest period.

RESULTS

The single-session training on a treadmill with a 10% incline has significantly increased hip flexion peak on the paretic side (39.8°± 8.1 in baseline to 42.7°± 8.6 after the session, P < 0.001, large effect size) and knee flexion peak on the paretic side (39.9°± 11.6 in baseline to 43.1°± 11.7 after the session, P = 0.004, large effect size). Gait speed, other spatiotemporal gait parameters and propulsion on the paretic side were also significantly increased (P < 0.05, all large effects size). These short-term changes were maintained after the break.

CONCLUSIONS

A treadmill single-session training with a 10% upward incline induces biomechanical changes in people with stroke. The environmental constraints of this training could explain these biomechanical adaptations, concerning especially paretic hip and knee flexion.

Facilitating Exercise Engagement among Community Dwelling Stroke Survivors: Is a once Per Week Group Session Sufficient?

Although exercise is proven as an effective strategy to combat post-stroke complications and the risk of stroke recurrence, many stroke survivors fail to engage in this activity following rehabilitation. In this study, we assessed the feasibility and usefulness of a low-frequency group exercise to determine its suitability as an approach to facilitate exercise engagement among stroke survivors. Forty-one stroke survivors, mean (SD) age 59.34 (10.02) years, mean time post-stroke 17.13 (17.58) months, completed a 90 minute, once per week, group exercise supervised by therapists for 12 weeks. The exercise outcomes were measured using standardized clinical tests. We observed improvement in the group's physical performance; balance score by 3 units (Z = -3.88, p < 0.001), speed of repetitive sit to stand by 3.4 s (Z = -4.69, p < 0.001), and walking speed by 8.22 m/min (Z = -3.25, p < 0.001). Scores of seven out of 14 Berg's balance scale items increased significantly, indicating better balance ability among the survivors. In conclusion, a 12-week, once per week group exercise session seems feasible and sufficient to improve the physical performance of community dwelling stroke survivors. This exercise arrangement may be offered to stroke survivors to facilitate exercise practice following rehabilitation.

Influence of systematic increases in treadmill walking speed on gait kinematics after stroke

BACKGROUND

Fast treadmill training improves walking speed to a greater extent than training at a self-selected speed after stroke. It is unclear whether fast treadmill walking facilitates a more normal gait pattern after stroke, as has been suggested for treadmill training at self-selected speeds. Given the massed stepping practice that occurs during treadmill training, it is important for therapists to understand how the treadmill speed selected influences the gait pattern that is practiced on the treadmill.

OBJECTIVE

The purpose of this study was to characterize the effect of systematic increases in treadmill speed on common gait deviations observed after stroke.

DESIGN

A repeated-measures design was used.

METHODS

Twenty patients with stroke walked on a treadmill at their self-selected walking speed, their fastest speed, and 2 speeds in between. Using a motion capture system, spatiotemporal gait parameters and kinematic gait compensations were measured.

RESULTS

Significant improvements in paretic- and nonparetic-limb step length and in single- and double-limb support were found. Asymmetry of these measures improved only for step length. Significant improvements in paretic hip extension, trailing limb position, and knee flexion during swing also were found as speed increased. No increases in circumduction or hip hiking were found with increasing speed. Limitations Caution should be used when generalizing these results to survivors of a stroke with a self-selected walking speed of less than 0.4 m/s. This study did not address changes with speed during overground walking.

CONCLUSIONS

Faster treadmill walking facilitates a more normal walking pattern after stroke, without concomitant increases in common gait compensations, such as circumduction. The improvements in gait deviations were observed with small increases in walking speed.

Higher-intensity treadmill walking during rehabilitation after stroke in feasible and not detrimental to walking pattern or quality: a pilot randomized trial

Objective: To determine whether higher-intensity treadmill walking during rehabilitation in those newly able to walk after stroke is feasible, is detrimental to walking or is beneficial.

Design: A single-blind, randomized trial.

Setting: Two rehabilitation units.

Participants: Thirty people with first stroke.

Interventions: Experimental group received 30 minutes of higher-intensity treadmill walking, three times per week for six weeks, in addition to usual physiotherapy. Control group received usual physiotherapy only.

Main outcome measures: Feasibility was measured by examining compliance and adverse events. Detriment to walking was measured by examining pattern and quality. Benefit to walking was measured as capacity using six-minute walk test and speed, at baseline (Week 0), immediately after (Week 6) and at three months (Week 18).

Results: Overall compliance was 89%, with no adverse events reported. There was no between-group difference in walking pattern and quality. By Week 6, the experimental group improved walking capacity by 62 m (95% confidence interval (CI) 10 to 114), comfortable walking speed by 0.18 m/s (95% CI 0.07 to 0.29) and fast walking speed by 0.18 m/s (95% CI 0.03 to 0.35) more than the control group. By Week 18, the experimental group was still walking 0.26 m/s (95% CI 0.12 to 0.41) faster than the control group.

Conclusions: Higher-intensity treadmill walking during rehabilitation after stroke is feasible and not detrimental to walking pattern and quality in those newly able to walk. 94 participants are required to detect a between-group difference of 75 m on six-minute walk test (α 0.05, β 0.90) in future trials.

Trial registration: ACTRN12607000412437

Treadmill walking with body weight support in subacute non-ambulatory stroke improves walking capacity more than overground walking: a randomised trial

QUESTIONS

Is treadmill walking with body weight support during inpatient rehabilitation detrimental to walking quality compared with assisted overground walking? Does it result in better walking capacity, perception of walking or community participation?

DESIGN

Analysis of secondary outcomes of a randomised trial with concealed allocation, assessor blinding and intention-to-treat analysis.

PARTICIPANTS

126 patients unable to walk within 4 weeks of a stroke who were undergoing inpatient rehabilitation.

INTERVENTION

The experimental group undertook up to 30 minutes of treadmill walking with body weight support via an overhead harness per day while the control group undertook up to 30 minutes of overground walking.

OUTCOME MEASURES

The secondary outcomes were walking quality and capacity, walking perception, community participation and falls.

RESULTS

Six months after entering the study, there was no difference between the groups of independent walkers in terms of speed (MD 0.10 m/s, 95% CI -0.06 to 0.26) or stride (MD 6 cm, 95% CI -7 to 19). The independent walkers in the experimental group walked 57 m further (95% CI 1 to 113) in the 6 min walk than those in the control group. The experimental group (walkers and non-walkers) rated their walking 1 point out of 10 (95% CI 0.1 to 1.9) higher than the control group. There was no difference between the groups in community participation or number of falls.

CONCLUSION

Treadmill training with body weight support results in better walking capacity and perception of walking compared to overground walking without deleterious effects on walking quality.

Exercise on a treadmill or walking outdoors? A randomized controlled trial comparing effectiveness of two walking exercise programmes late after stroke

Objective: To evaluate spatial and temporal gait characteristics and endurance late after stroke in people who had received two different walking exercises. A secondary aim was to compare the outcomes in relation to length of time exercising and number of exercise occasions between the two.

Design: A randomized controlled trial.

Setting: A private rehabilitation centre.

Subjects: Thirty-nine people with stroke entered the study, and five dropped out.

Interventions: Treadmill training versus walking outdoors.

Main measures: Six-Minute Walk Test, a 10-metre walk test and pulse rates at rest and in activity.

Results: There were significant differences in favour of the treadmill group in Six-Minute Walk Test distance (P = 0.04), Six-Minute Walk Test speed (P = 0.03), 10-m walking speed (P = 0.03), bilateral stride length (right leg; P =0.009, left leg; P =0.003) and step width (P = 0.01), indicating more symmetrical use of the legs in the treadmill group (1.02—1.10 m versus 0.97—0.92 m). There were no significant differences between groups in cadence (P = 0.78). All participants complied 100% with their respective programmes. Exercise frequency did not differ between the groups but significantly less time was spent exercising on the treadmill compared with walking exercise outdoors (107 versus 316 minutes, P =0.002). There were no differences in use of assistive aids between the groups on arrival at the clinic or at departure.

Conclusion: The results indicate that treadmill walking improves spatial and temporal gait characteristics more effectively than walking outdoors.