Housing accessibility and its associations with participation among older adults living with long-standing spinal cord injury

Objectives: To describe the housing situation and aspects of participation among older adults living with long-standing spinal cord injury (SCI) with attention to SCI severity, and to examine whether and how objective housing accessibility (based on objectively measurable criteria) is associated with aspects of participation.

Design: Cross-sectional study utilizing the assessment tools Impact on Participation and Autonomy (IPA) and Housing Enabler (HE). Adjusting for demographic, social and injury related data, associations between objective housing accessibility and aspects of participation were analyzed by means of ordinal regression models.

Setting: Home and community settings.

Participants: Older adults (≥ 50 years) (N?=?123), with a traumatic or non-traumatic SCI for at least 10 years. To make comparisons within the sample, three groups of SCI severity were formed using the American Spinal Injury Association (ASIA) Impairment Scale.

Results: Housing adaptations and environmental barriers were common and differed between SCI severity groups; those with AIS D injuries had fewer adaptations and more environmental barriers indoors. A majority of the participants in the total sample perceived their participation as good or very good in most of the IPA activities studied. Accessibility indoors was significantly associated with autonomy indoors (P?=?0.009), family role (P?=?0.002) and participation problems (P?=?0.004); more accessibility problems were associated with less participation and more participation problems.

Conclusion: This study indicates that optimizing the housing environment for older adults with SCI can potentially increase their participation and make them more autonomous. Further studies based on longitudinal data are needed to determine the causality of the associations identified.     

Reliability of S3 pressure sensation and voluntary hip adduction/toe flexion and agreement with deep anal pressure and voluntary anal contraction in classifying persons with traumatic spinal cord injury

Context/Objective: The sacral examination components of the International Standards for Neurological Classification of Spinal Cord Injury (ISNCSCI), namely deep anal pressure (DAP) and voluntary anal sphincter contraction (VAC), are often difficult to perform. We evaluated whether pressure sensation at the S3 dermatome (S3P), and voluntary hip adductor or toe flexor contraction (VHTC) are tenable alternatives. Here we report test–retest reliability and agreement of these components at 1 month after spinal cord injury (SCI), and impact of disagreement on American Spinal Injury Association (ASIA) Impairment Scale (AIS) grades.

Design: Longitudinal cohort. ISNCSCI examination, S3P and VHTC conducted at 1-month post-injury; retest of the sacral exam, S3P and VHTC within 3 days. Follow-up examinations performed at 3, 6, and 12 months.

Setting: Five Spinal Cord Injury Model System Centers.

Participants: Subjects with acute traumatic SCI, neurological levels T12 and above, AIS grades A–C.

Interventions: None.

Outcome Measures: ISNCSCI exam, AIS grades.

Results: Fifty-one subjects had 1-month data, and 39 had at least one follow-up examination. Test–retest reliability indicated perfect agreement (kappa?=?1.0) for all data except S3P (kappa?=?0.96). The agreement was almost perfect between S3P and DAP (kappa?=?0.84) and between VHTC and VAC (kappa?=?0.81). VHTC and VAC differed more often with neurologic levels below T10, possibly due to root escape in conus medullaris injuries.

Conclusion: S3P and VHTC show promise as alternatives to DAP and VAC for determining sacral sparing in persons with neurologic levels T10 and above. Reliability and agreement should be evaluated at earlier timepoints and in children with SCI.     

A brief fall prevention intervention for manual wheelchair users with spinal cord injuries: A pilot study

Objective: To conduct a pilot study of an intervention to decrease fall incidence and concerns about falling among individuals living with Spinal Cord Injury who use manual wheelchairs full-time.

Design: Pre/post. After a baseline assessment, a structured intervention was implemented. The assessment protocol was repeated 12 weeks after the baseline assessment.

Setting: Research laboratory and community.

Participants: 18 individuals living with SCI who use a manual wheelchair full-time with an average age of 35.78?±?13.89 years, lived with SCI for 17.06?±?14.6 years; 61.1% were female.

Intervention: A 1:1, 45 minute, in-person intervention focused on factors associated with falls and concerns about falling: transfers skills and seated postural control.

Outcome measures: Participants reported fall incidence and completed the Spinal Cord Injury Fall Concerns Scale, Community Participation Indicators and the World Health Organization Quality of Life – short version (WHOQOL-BREF). Transfer quality was assessed with the Transfer Assessment Instrument (TAI) and seated postural control with the Function In Seating Test (FIST).

Results: Recruitment, assessment and delivery of the intervention were successfully completed. After exposure to the intervention, fall incidence significantly decreased, (P?=?0.047, d_{z ?}=?0.507) and FIST scores improved (P?=?0.035, d_z? =?0.54). Significant improvements were also found in the WHOQOL-BREF Physical (P?=?0.05, d_{z ?}=?1.566) and Psychological (P?=?0.040, d_{z ?}=?0.760) domains.

Conclusion: The feasibility of the structured intervention was established and the intervention has the potential to reduce fall incidence and improve quality of life among individuals living with SCI who use a wheelchair. Appropriately powered randomized controlled trials of the program are warranted.     

Comparison of transcutaneous electrical nerve stimulation (TENS) and functional electrical stimulation (FES) for spasticity in spinal cord injury - A pilot randomized cross-over trial

Objective: Spasticity following spinal cord injury (SCI) can impair function and affect quality of life. This study compared the effects of transcutaneous electrical nerve stimulation (TENS) and functional electrical stimulation (FES) on lower limb spasticity in patients with SCI.

Design: Double blind randomized crossover design.

Setting: Neuro-rehabilitation unit, Manipal University, India.

Participants: Ten participants (age: 39 ± 13.6 years, C1–T11, 1–26 months post SCI) with lower limb spasticity were enrolled in this study.

Interventions: Participants were administered electrical stimulation with TENS and FES (duration - 30 minutes) in a cross over manner separated by 24 hours.

Outcome Measures: Spasticity was measured using modified Ashworth scale (MAS) [for hip abductors, knee extensors and ankle plantar flexors] and spinal cord assessment tool for spastic reflexes (SCATS). Assessments were performed at baseline, immediately, 1 hour, 4 hours, and 24 hours post intervention.

Results: A between group analysis did not show statistically significant differences between FES and TENS (P > 0.05). In the within group analyses, TENS and FES significantly reduced spasticity up to 4 hours in hip adductors and knee extensors (P < 0.01). SCATS values showed significant reductions at 1 hour (P?=?0.01) following TENS and 4 hours following FES (P?=?0.01).

Conclusion: A single session of electrical stimulation with FES and TENS appears to have similar anti-spasticity effects that last for 4 hours. The findings of this preliminary study suggest that both TENS and FES have the potential to be used as therapeutic adjuncts to relieve spasticity in the clinic. In addition, FES may have better effects on patients presenting with spastic reflexes.     

Duplex ultrasound surveillance for deep vein thrombosis after acute traumatic spinal cord injury at rehabilitation admission

Context/objective: To determine the prevalence of deep vein thrombosis (DVT) detected through routine duplex screening and factors associated with DVT in spinal cord injury (SCI) patients on admission to rehabilitation.

Design: Retrospective chart review of medical records.

Setting: Acute inpatient rehabilitation.

Participants: One hundred and eighty-nine individuals admitted to rehabilitation within 2 weeks of initial traumatic SCI who underwent routine surveillance with duplex scan for DVT.

Interventions: Duplex scan of lower extremities.

Outcome measures: The dependent variable was positive duplex screening for either any DVT (distal and/or proximal) or proximal DVT.

Results: Of the 189 patients, 31 patients (16.4%) had a positive scan for any (proximal and/or distal) DVT, with 9 (4.8%) positive for a proximal DVT and 22 (11.6%) positive for isolated distal DVT. Of those with isolated distal DVT, 31.8% later developed propagation with either proximal DVTs or pulmonary embolism (mean?=?22 days). Factors significantly associated with positive duplex scans for any (proximal and/or distal) DVT include more severe neurological injury (AIS A, B or C versus AIS D: χ²?=?7.1791, df?=?1, P?=?0.007) and older age (age ≥50 years old: χ²?=?14.9410, df?=?1, P?=?0.000).

Conclusion: In acute traumatic SCI, older age and more severe neurological impairment (AIS A, B, and C) are independent risk factors for positive duplex screening for any (proximal and/or distal) DVT detected on rehabilitation admission. Individuals with an acute distal DVT have a high likelihood for future thrombus progression. Routine surveillance for these patients may be warranted.     

Auricular acupuncture for spinal cord injury related neuropathic pain: a pilot controlled clinical trial

Objective: To obtain preliminary data on the effects of an auricular acupuncture protocol, Battlefield Acupuncture (BFA), on self-reported pain intensity in persons with chronic Spinal Cord Injury (SCI) and neuropathic pain.

Design: Pilot randomized delayed entry single center crossover clinical trial at an outpatient rehabilitation and integrative medicine hospital center.

Methods: Chronic (> one year post injury) ASIA impairment scale A through D individuals with SCI with injury level from C3 through T12 and below level neuropathic pain with at least five on the Numeric Rating Scale (NRS) were recruited. Twenty-four subjects were randomized to either an eight-week once weekly ten-needle BFA protocol (n?=?13) or to a waiting list followed by the BFA protocol (n?=?11).

Outcome measures: The primary outcome measure was change in the pain severity NRS. Secondary outcome was the Global Impression of Change.

Results: Demographically there were no significant differences between groups. Mean pain scores at baseline were higher in acupuncture than control subjects (7.75?±?1.54 vs. 6.25?±?1.04, P?=?0.027). Although both groups reported significant reduction in pain during the trial period, the BFA group reported more pain reduction than the delayed entry group (average change in NRS at eight weeks –2.92?±?2.11 vs. ?1.13?±?2.14, P?=?0.065). There was a significant difference in groups when a group-by-time interaction in a mixed-effect repeated measures model (P?=?0.014).

Conclusion: This pilot study has provided proof of concept that BFA has clinically meaningful effect on the modulation of SCI neuropathic pain.     

Preliminary validation study of the WHO quality of life (WHOQOL) scales for people with spinal cord injury in Mainland China

ObjectiveTo validate the WHOQOL Scales (WHOQOL-BREF and WHOQOL-DIS module) for people with spinal cord injury in Mainland China.DesignCross-sectional study.SettingShanghai Sunshine Rehabilitation Center.Participants249 adults with SCI who were admitted to a rehabilitation training program between 2017 and 2019.InterventionsNot applicable.MethodsQuestionnaires about personal and injury characteristics, the WHOQOL Scales, global QOL, Zung Self-Rating Anxiety/Depression Scale (SAS/SDS), and Community Integration Questionnaire (CIQ) were administrated. Floor and ceiling effects, reliability, and validity analyses were tested.ResultsThe 8 domains of the WHOQOL Scales showed no floor or ceiling effects. Cronbach alpha values of the WHOQOL-BREF and the WHOQOL-DIS were 0.93 and 0.78, respectively. Test-retest reliability was good for the WHOQOL Scales. Satisfactory criterion-related validity was shown by the correlation analysis among the WHOQOL Scales, SAS/SDS, CIQ, and global QOL. Good item-domain correlations (>0.50) were found for 38 items of the 39-item WHOQOL Scales, excepting the “impact of disability” (0.48) of the WHOQOL-DIS. Confirmatory Factor Analysis (CFA) supported a construct of the WHOQOL-DIS as made of four domains: autonomy, social inclusion, social activities, and discrimination. CFI and RMSEA values were 0.91 and 0.07, respectively, for the four-domain structure WHOQOL-DIS, with a higher-order factor. WHOQOL-BREF domains and WHOQOL-DIS scores showed the predicted pattern among a priori known groups.ConclusionThe WHOQOL Scales are valid and reliable, and they can be used to measure QOL in people with SCI in China. We suggest the WHOQOL-DIS be analyzed as one general item constituting a single 12-item domain.     

Utilization and access to healthcare services among community-dwelling people living with spinal cord injury

Objective: Describe the utilization, accessibility, and satisfaction of primary and preventative health-care services of community-dwelling individuals with spinal cord injury (SCI).

Design: Cross sectional, in-person or telephonic survey, utilizing a convenience sample.

Setting: Community.

Participants: Individuals with SCI greater than 12-months post injury.

Interventions: N/A.

Outcome measures: Demographic, injury related, and 34-item questionnaire of healthcare utilization, accessibility, and satisfaction with services.

Results: The final sample consisted of 142 participants (50 female, 92 male). Ninety-nine percent of respondents had a healthcare visit in the past 12-months with primary care physicians (79%), with SCI physiatrists (77%) and urologists (50%) being the most utilized. 43% of the sample reported an ER visit within the past 12-months, with 21% reporting multiple visits. People who visited the ER had completed significantly less secondary education (P?=?0.0386) and had a lower estimate of socioeconomic status (P?=?0.017). The majority of individuals (66%) were satisfied with their primary care physician and 100% were satisfied with their SCI physiatrist. Individuals who did not visit an SCI physiatrist were significantly more likely to live in a rural area (P?=?0.0075), not have private insurance (P?=?0.0001), and experience a greater decrease in income post injury (P?=?0.010).

Conclusion: The delivery of care for people with SCI with low socioeconomic status may be remodeled to include patient-centered medical homes where care is directed by an SCI physiatrist. Further increased telehealth efforts would allow for SCI physiatrists to monitor health conditions remotely and focus on preventative treatment.     

Determining priorities in functional rehabilitation related to quality of life one-year following a traumatic spinal cord injury

Context/Objective: To determine the relationship between the different functional aspects (as determined by the Spinal Cord Independence Measure) and quality of life (QOL) following a traumatic spinal cord injury (TSCI), considering clinical confounding factors.

Design: Retrospective review of a prospective cohort

Setting: A single Level-1 trauma center specialized in SCI care

Participants: One hundred and forty-two individuals sustaining an acute traumatic SCI

Interventions: Not applicable

Outcome measures: The four QOL domains as assessed by the WHOQoL-bref questionnaire 6–12 months following a TSCI.

Results: Mobility subscore was the only functional aspect significantly associated with all QOL domains (physical, psychological, social and environmental). Females present better chronic social and environmental QOL when compared to males. The level of injury may also influence environmental QOL.

Conclusion: Mobility training (mobility in bed, mobility with or without technical aids, transfers and stair management) should be an important part of the rehabilitation process in order to optimize chronic QOL following a TSCI.     

Apolipoprotein E s4 Allele and Outcomes of Traumatic Spinal Cord Injury

Abstract

Background/Objective: To test the hypothesis that apolipoprotein E (APOE) polymorphisms are associated with outcomes after spinal cord injury (SCI).

Methods: Retrospective cohort study, from rehabilitation admission to discharge.

Participants: Convenience sample of 89 persons with cervical SCI (C3-C8) treated from 1995 through 2003. Median age was 30 years (range 14-70); 67 were male (75%) and 83 were white (93%).

Main Outcome Measures: American Spinal Injury Association (ASIA) motor and sensory scores, ASIA Impairment Scale (AIS), time from injury to rehabilitation admission, and length of stay (LOS) in rehabilitation.

Results: Subjects with an APOE s4 allele (n = 15; 17%) had significantly less motor recovery during rehabilitation than did individuals without an s4 allele (median 3.0 vs 5.5; P < 0.05) and a longer rehabilitation LOS (median 106 vs 89 days; P = 0.04), but better sensory-pinprick recovery (median 5.0 vs 2.0; P = 0.03). There were no significant differences by APOE s4 allele status in sensory-light touch recovery, likelihood of improving AIS Grade, or time from injury to rehabilitation admission.

Conclusions: APOE ε4 allele was associated with differences in neurological recovery and longer rehabilitation LOS. Genetic factors may be among the determinants of outcome after SCI and warrant further study.     

Changes in nutrient intake and inflammation following an anti-inflammatory diet in spinal cord injury

Objective: The objective of the current study was to describe the observed changes in nutrient intakes following a 3-month anti-inflammatory diet, and to explore potential relationships between the change in nutrients and the change in various inflammatory mediators.

Design: A secondary analysis of a prior randomized controlled clinical trial.

Setting: Individuals with SCI within the Niagara region.

Participants: Twenty individuals with various levels and severities of SCI.

Intervention: Three-month anti-inflammatory diet.

Outcome Measures: The change in nutrient intake and corresponding changes to various inflammatory mediators.

Results: The treatment group demonstrated a significant reduction in fat intake (P?=?0.02), a significant increase in protein intake (P?=?0.02), and no change in carbohydrates (P?=?0.23) or energy intake (P?=?0.10). The treatment group showed a significant increase in some nutrients with established anti-inflammatory properties including vitamins A, C, and E, and omega-3 fatty acids (P?<?0.01). Significant reductions in proinflammatory nutrients were observed including trans fatty acids (P?=?0.05), caffeine (P?<?0.01), and sodium (P?=?0.02). The treatment group also showed significant reductions in the proinflammatory mediators interferon-y (P?=?0.01), interleukin-1β (P?<?0.01), and interleukin-6 (P?<?0.05). Further, several proinflammatory mediators were negatively correlated with anti-inflammatory nutrients, including vitamin A, carotenoids, omega-3 fatty acids, and zinc.

Conclusion: This study provides evidence that dietary alterations are effective at reducing chronic inflammation in individuals with SCI and provides a preliminary assessment of the related nutrient changes.     

Evaluation of Bone Mineral Density in Patients With Spinal Cord Injury

Abstract

Background/Objective: This study was performed to evaluate the bone mineral density (BMD) values in patients with spinal cord injury (SCI) and determine the effects of the level, severity, and duration of the neurological lesion and spasticity on BMD values.

Methods: A total of 75 patients with traumatic SCI and a healthy control group of 39 people were included in the study. The BMD values of the lumbar spine and 4 different regions of the hip (femoral neck, Ward's triangle, trochanter, and femoral shaft) of all cases were measured using dual energy x-ray absorptiometry. The biochemical markers were also analyzed.

Results: The BMD values in all measured regions were found to be decreased in patients compared with that of controls. The level and seventy of the lesion and the spasticity did not significantly affect BMD values in the regions analyzed. The BMD values of the hip decreased as the duration of SCI increased. The levels of plasma phosphorus and alkaline phosphatase, calcium in 24-hour urine samples, and the calcium/creatinine ratio in spot urines were found to be significantly higher in the patient group.

Conclusion: All patients with SCI had lower BMD values than controls. The level and severity of SCI and spasticity did not significantly affect BMD values. The BMD values of the hip decreased as the duration of SCI increased.     

Muscle spasticity associated with reduced whole-leg perfusion in persons with spinal cord injury

Abstract

Objective

To determine the association between peripheral blood flow and spasticity in individuals with spinal cord injury (SCI).

Design

A cross-sectional study with measurements of muscle spasticity and whole-limb blood flow in individuals with SCI.

Setting

University of Texas at Austin and Brain & Spine Recovery Center, Austin, TX, USA.

Participants

Eighteen individuals (14 males and 4 females) with SCI were classified into high (N = 7), low (N = 6), and no (N = 5) spasticity groups according to the spasticity levels determined by the modified Ashworth scale scores.

Interventions

Whole-limb blood flow was measured in the femoral and brachial arteries using Doppler ultrasound and was normalized to lean limb mass obtained with dual-energy X-ray absorptiometry.

Outcome measures

Limb blood flow and muscle spasticity.

Results

Age, time post-SCI, and the American Spinal Injury Association impairment scale motor and sensory scores were not different among groups with different muscle spasticity. Femoral artery blood flow normalized to lean leg mass was different (P = 0.001) across the three spasticity groups (high 78.9 ± 16.7, low 98.3 ± 39.8, no 142.5 ± 24.3 ml/minute/kg). Total leg muscle spasticity scores were significantly and negatively correlated with femoral artery blood flow (r = ?0.59, P < 0.01). There was no significant difference in brachial artery blood flow among the groups.

Conclusions

Whole-leg blood flow was lower in individuals with greater spasticity scores. These results suggest that a reduction in lower-limb perfusion may play a role, at least in part, in the pathogenesis leading to muscle spasticity after SCI.     

Association of musculoskeletal pain,fear-avoidance factors,and quality of life in active manual wheelchair users with SCI: A pilot study

Objective: Limited evidence examines the association of psychological factors, such as fear of movement and pain catastrophizing, with musculoskeletal pain patterns in active manual wheelchair users with spinal cord injury (SCI). This study investigated the relationship among musculoskeletal pain, fear avoidance factors, quality of life (QoL), activity and duration of injury in individuals with SCI.

Design: Cross-sectional correlational.

Setting: Community setting.

Participants: Twenty-six individuals with SCI (age?=?42?±?14 years, duration manual wheelchair use?=?17?±?13 years, work/school/volunteer hours/week?=?31?±?14; recreation/sports hours/week 10?±?12).

Outcome Measures: Demographics and self-report measures including the Musculoskeletal Pain Survey (MPS), Wheelchair Users Shoulder Pain Index (WUSPI), Tampa Scale of Kinesiophobia (TSK-11), Pain Catastrophizing Scale (PCS), Fear of Pain (FPQ), Subjective Quality of Life Questionnaire (SQoL), and the Social Interaction Inventory (SII). Spearman’s rho (ρ) assessed correlation among measures.

Results: Strong association existed between age and duration of injury (ρ?=?0.66, P?<?0.001). SQoL offered a strong, direct correlation with age (ρ?=?0.63, P?=?0.01), duration of injury (ρ?=?0.70, P?=?0.001), and strong, inverse relationship with MPStotal (ρ?=??0.66, P?=?0.003) and MPS shoulder subscore (ρ?=??0.64, P?=?0.004). WUSPI demonstrated strong, inverse association with self-reported work hours (ρ?=??0.52, P?=?0.02) and a strong, direct relationship to PCS (ρ?=?0.79, P?=?<0001). PCS demonstrated a strong, inverse relationship to work/school/volunteer hours (ρ?=?0.71, P?<?0.001) and strong association to TSK-11_total (ρ?=?0.61, P?=?0.001). A moderate, inverse relationship was identified for recreational/sports hours and FPQ (ρ?=?0.48, P?=?0.03).

Conclusion: This cyclical relationship of musculoskeletal pain, reduced activity, and maladaptive psychological factors allude to interdependence of factors, supporting the multidisciplinary approach to care.     

The characteristics of chronic pain after non-traumatic,non-compressive myelopathy: Focus on neuropathic pain

Objectives: The aim of this study was to assess the characteristics of neuropathic pain after non-traumatic, non-compressive (NTNC) myelopathy and find potential predictors for neuropathic pain.

Design: We analyzed 54 patients with NTNC myelopathy. The Short Form McGill Pain Questionnaire (SF-MPQ) and the Leeds Assessment of Neuropathic Symptoms and Signs (LANSS) were used to assess pain. Health-related QOL was evaluated by the Short Form 36-item (SF-36) health survey.

Results: Out of 48 patients with pain, 16 (33.3%) patients experienced neuropathic pain. Mean age was significantly lower in patients with neuropathic pain than in patients with non-neuropathic pain (39.1?±?12.5 vs. 49.8?±?9.3, P?=?0.002). There were no statistically significant differences in the other variables including sex, etiology of myelopathy, pain and QOL scores between the two groups. A binary logistic regression revealed that onset age under 40, and non-idiopathic etiology were independent predictors of the occurrence of neuropathic pain. Both SF-MPQ and LANSS scores were significantly correlated with SF-36 scores, adjusted by age, sex, presence of diabetes mellitus, and current EDSS scores (r?=?–0.624, P?Conclusion: Neuropathic pain must be one of serious complications in patients with NTNC myelopathy and also affects their quality of life. Onset age and etiology of myelopathy are important factors in the development of neuropathic pain in NTNC myelopathy.     

Examination of Spasticity of the Knee Flexors and Knee Extensors Using Isokinetic Dynamometry With Electromyography and Clinical Scales in Children With Spinal Cord Injury

Abstract

Background/Objective: To examine the role of reflex activity in spasticity and the relationship between peak passive torque, Ashworth Scale (AS), and Spasm Frequency Scale (SFS) of the knee flexors and extensors during the measurement of spasticity using an isokinetic dynamometer in children with spinal cord injury (SCI).

Methods: Eighteen children with chronic SCI and 10 children of typical development (TD) participated. One set of 10 passive movements was completed using an isokinetic dynamometer at 15, 90, and 180 degrees per second (deg/s) while surface electromyographic data were collected from the vastus lateralis (VL) and medial hamstrings (MH). Spasticity was clinically assessed using the AS and SFS.

Results: There were no significant differences in peak passive torque of the knee flexors and extensors at any velocity for children with SCI compared to children with TD. Children with TD demonstrated significantly more reflex activity of the MH during the assessment of knee flexor spasticity at all movement velocities than did children with SCI. Children with TD demonstrated significantly more reflex activity of the VL during the assessment of knee-extensor spasticity with movements at 180 deg/s. The relationship between peak passive torque, AS, and SFS was significant during movements at a velocity of 90 deg/s only. Conclusions: The role of increased reflexes in spasticity needs further examination. Isokinetic dynamometry may be measuring a different aspect of spasticity than the AS and SFS do in children with SCI.     

Effect of inspiratory muscle training (IMT) on aerobic capacity,respiratory muscle strength and rate of perceived exertion in paraplegics

Objectives: The purpose is to study the effect of inspiratory muscle training on aerobic capacity, respiratory muscle strength and rate of perceived exertion in paraplegics.

Study Design: Randomized controlled trial.

Settings: Rehabilitation department in Indian Spinal Injuries Centre, New Delhi.

Participants: A sample of 30 paraplegics (T1-T12) were randomly allocated into two groups: inspiratory muscle training (IMT) group and control group.

Interventions: The IMT group received inspiratory muscle training for 15 minutes 5 times a week for 4 weeks whereas the control group was given breathing exercises.

Outcome measures: Maximal inspiratory pressure(MIP), maximal expiratory pressure (MEP), modified Borg’s scale (MBS), 12 minute wheelchair aerobic test (12MWAT), multistage fitness test (MSFT), and 6 minutes push test (6MPT).

Results: Out of 30 participants, 27 completed the study. The results show that after four weeks of IMT training, there were significant improvements in mean change scores of IMT group as compared to control group. Participants in IMT group performed better on 12MWAT (P?=?0.001), MSFT (P?=?0.001) and 6MPT (P?=?0.001). Improvements in MIP scores (P?=?0.001), MEP scores (P?=?0.001) and MBS scores (P?=?0.004) were also seen in IMT group.

Conclusion: Both groups showed significant improvements, however inspiratory muscle training was seen to be more effective than deep breathing exercises for improving aerobic capacity, respiratory muscle strength and rate of perceived exertion in paraplegics.     

Pattern of startle reflex to somatosensory stimuli changes after spinal cord injury

Introduction: Spinal cord injury (SCI) may cause functional changes at various levels in central and peripheral nervous systems. One of these changes is increased excitability above the lesion such as enhanced auditory startle responses (ASR). Startle response may also be obtained after somatosensory stimulus (startle reflex to somatosensory stimuli, SSS). In this study, we investigated changes of both ASR and SSS in SCI.

Method: We examined ASR and SSS in 14 patients with SCI and 18 age-matched healthy volunteers. SSS responses were recorded from orbicularis oculi (O.oc), sternocleidomastoid (SCM) and biceps brachii (BB) muscles by electrical stimulation of median nerve at the wrist. ASR was evoked by binaural auditory stimuli and recorded from O.oc, masseter, SCM and BB muscles. Probability, latency, amplitude and duration of responses were compared between two groups for each muscle.

Results: Presence of response over O.oc after somatosensory stimuli was decreased in patients compared to controls (P?=?0.004). There were no differences in SSS responses of other muscles. ASR latency was shorter in masseter, SCM and BB in patients with SCI, but only BB had significantly reduced latency (P?=?0.033). The duration of O.oc response was longer and the amplitude of SCM was larger in patients with SCI (P?=?0.037 and P?=?0.015, respectively).

Conclusion: ASR is enhanced after SCI whereas SSS of eye muscles is hypoactive and pattern of SSS after median stimulation changes in SCI.     

Longitudinal changes in body composition and metabolic profile between exercise clinical trials in men with chronic spinal cord injury

Study design: Longitudinal design.

Objectives: The study was undertaken to determine the effects of cessation of exercise interventions on body composition and metabolic profiles in men with chronic SCI.

Settings: Clinical trials within a Medical Center.

Methods: Eleven men with motor complete SCI were followed on average over a period of 2.5 years. Six men were involved in two different exercise interventions (functional electrical stimulation cycling versus arm cycling ergometer), 5 days/week for 16 weeks (exercise group), and five men served as a control (control group). Anthropometrics and dual energy X-ray absorptiometry (DXA) were captured to measure changes in lean mass (LM), fat mass (FM), percentage FM before, immediately after exercise, and after a period of 2.5 years. Basal metabolic rate (BMR) and lipid panel were also measured.

Results: Thigh circumference increased by 8.5% following exercise (P?=?0.042) and remained 6.4% greater than baseline measurements (P?=?0.012). Leg LM increased by 9% following the exercise intervention (P?=?0.03) and decreased by 16% in the follow-up visit (P?=?0.02). Percentage trunk and total body FM increased by 4.5% (P?=?0.008) and 3.5% (P?=?0.019) in the follow-up visit, respectively, and whole body LM increased by 8.4% and decreased back by 5.4% following a 2.5 year-period. BMR significantly decreased by 15.5% following the exercise (P?=?0.029) interventions.

Conclusion: Exercise training is accompanied with positive changes in body composition as well as compensatory decrease in BMR, that regressed back following 2.5 years of exercise cessation. Participation in an exercise trial is unlikely to confound the measurements of a follow-up trial.