The effects of a closed-chain, eccentric training program on hamstring injuries of a professional football cheerleading team

Objective

Hamstring injuries are a common occurrence among professional football cheerleaders. The purpose of this study is to identify the effects of an eccentric, closed-chain hamstring exercise intervention on hamstring injury-associated pain during the course of the football season among professional football cheerleaders.

Methods

Forty-three female cheerleaders participated in an eccentric, closed-chain hamstring exercise intervention protocol provided by doctors of chiropractic that incorporated loops of elastic-band or Thera-Band Loops (Hygenic Corporation, Akron, OH) during practice and at home during the regular football season. Hamstring injury-related pain was assessed in June, during team selection; in September, at the start of the season; and in December, at the end of season. No intervention was applied between June and September, although the sample participated in 4 hours of practice 2 to 3 times per week. The intervention was applied to the entire sample regardless of hamstring injury-related pain during the regular football season between September and December. The interventions included 2 exercises and were completed bilaterally 2 times per week at each biweekly practice and were encouraged to be done at least 3 additional times per week at home on nonpractice days.

Results

Among the subsample who reported hamstring-related injury pain between June and September, the exercise intervention significantly decreased (P < .007) pain between September (6.07 ± 0.58) and December (3.67 ± 0.65).

Conclusions

The eccentric, closed-chain hamstring exercise intervention reduced hamstring injury-related pain among this group of professional football cheerleaders.     

Characteristics and rehabilitation outcomes among patients with blast and other injuries sustained during the Global War on Terror

Sayer NA, Chiros CE, Sigford B, Scott S, Clothier B, Pickett T, Lew HL. Characteristics and rehabilitation outcomes among patients with blast and other injuries sustained during the Global War on Terror.

Objective

To describe characteristics and rehabilitation outcomes among patients who received inpatient rehabilitation for blast and other injuries sustained in Iraq and Afghanistan during the Global War on Terror.

Design

Observational study based on chart review and Department of Veterans Affairs (VA) administrative data.

Setting

The 4 VA polytrauma rehabilitation centers (PRCs).

Participants

Service members (N=188) admitted to a PRC during the first 4 years of the Global War on Terror for injuries sustained during Operation Iraqi Freedom or Operation Enduring Freedom.

Intervention

Multidisciplinary comprehensive rehabilitation program.

Main Outcomes Measures

Cognitive and motor FIM instrument gain scores and length of stay (LOS).

Results

Most war-injured patients had traumatic brain injury, injuries to several other body systems and organs, and associated pain. Fifty-six percent had blast-related injuries, and the pattern of injuries was unique among those with injuries secondary to blasts. Soft tissue, eye, oral and maxillofacial, otologic, penetrating brain injuries, symptoms of post-traumatic stress disorder, and auditory impairments were more common in blast-injured patients than in those with war injuries of other etiologies. The mechanism of the injury did not predict functional outcomes. LOS was variable, particularly for those with blast injuries. Patients with low levels of independence at admissions made the most progress but remained more dependent at discharge compared with other PRC patients. The rate of gain was slower in this low-functioning group.

Conclusions

Blasts produce a unique constellation of injuries but do not make a unique contribution to functional gain scores. Findings underscore the need for assessment and treatment of pain and mental health problems among patients with polytrauma and blast-related injuries. Patients with polytrauma have lifelong needs, and future research should examine needs over time after community re-entry.     

Characteristics of a Mild Head Injury Subgroup With Extreme, Persisting Distress on the Rivermead Postconcussion Symptoms Questionnaire

Kirsch NL, de Leon MB, Maio RF, Millis SR, Tan-Schriner CU, Frederiksen S. Characteristics of a mild head injury subgroup with extreme, persisting distress on the Rivermead Postconcussion Symptoms Questionnaire.

Objective

To examine baseline variables and identify characteristics of participants with extremely high reports of symptoms (ie, outliers) 12 months after mild head injury (MHI).

Design

A prospective cohort study of MHI with and without loss of consciousness (LOC) and/or posttraumatic amnesia (PTA) recruited from and interviewed at the emergency department (ED), with a follow-up telephone interview at 12 months.

Setting

Level II community hospital ED.

Participants

Participants (n=58) with MHI and LOC less than or equal to 30 minutes and/or PTA less than 24 hours and participants (n=173) with MHI but no PTA/LOC. Inclusion criteria: age greater than or equal to 18 years, less than or equal to 24 hours after injury, Glasgow Coma Scale score greater than or equal to 13, and discharge from the ED. Fourteen (6%) participants had extremely high scores on the Rivermead Postconcussion Symptoms Questionnaire (RPQ).

Main Outcome Measures

RPQ and questions on health services use and litigation.

Results

Characterizing the outlier cases are prior head injury, preinjury disability, history of substance use, unemployment, and elevated somatic symptoms at the ED. At 12 months, outliers had higher use of health services and litigation.

Conclusions

The existence of a subgroup with a distinctive pattern of baseline characteristics in combination with elevated somatic symptoms at the time of presentation to the ED suggests that further taxonomic distinctions may be warranted for the MHI population, each requiring appropriately targeted interventions for addressing symptomatic complaints.     

Epidemiology of balcony fall-related injuries, United States, 1990-2006

Background

Falls from heights are common in urban areas in the United States. This study describes the epidemiology of balcony fall-related injuries requiring emergency department (ED) treatment among children and adults in the United States from 1990 through 2006.

Methods

In 2009, a retrospective analysis of data from the National Electronic Injury Surveillance System of the US Consumer Product Safety Commission was conducted to describe the epidemiology of balcony fall-related injuries.

Results

An estimated 86?500 (95% confidence interval [CI], 68?400-104?600) balcony fall-related injuries were treated in US hospital EDs from 1990 through 2006; 70% of cases were male; 63% were adults (≥18 years old); 94% of injury events occurred at home; 24% of patients were hospitalized; and 8 patients died. The rate of balcony fall-related injuries among children decreased significantly during 1990 to 2006 and was similar to that of adults by the end of the study period. Fall heights ranged from 5 to 87.5 ft. Structural failure of the balcony was involved in an estimated 5600 cases. Patients younger than 18 years were more likely to sustain a concussion/closed head injury (relative risk, 2.42; 95% CI, 1.84-3.18) or skull fracture (relative risk, 5.86; 95% CI, 2.58-13.30) than adults.

Conclusions

This is the first study of balcony fall-related injuries requiring emergency treatment using a nationally representative sample. Balcony falls are an important cause of injury in the United States. Age, male sex, and warm months of the year were associated with balcony fall-related injuries in our study population.     

Prediction of blunt traumatic injury in high-acuity patients: bedside examination vs computed tomography

Objective

The addition of spiral computed tomography (SCT) to bedside assessment in patients with major trauma may improve detection of significant injury. We hypothesized that in high-acuity trauma patients, emergency physicians' ability to detect significant injuries based solely on bedside assessment would lack the sensitivity needed to exclude serious injuries when compared with SCT.

Methods

This was a prospective single-cohort study of high-acuity trauma patients routinely undergoing whole-body SCT at a level 1 trauma center from January to September 2006. Before SCT, emergency physicians assigned ratings for likelihood of injury to 5 body regions on the basis of bedside assessment. These ratings were compared with final SCT interpretations.

Results

We enrolled 400 patients as a convenience sample; 71 were excluded. When a “very low” rating was considered negative and “low,” “intermediate,” “high,” and “very high” were considered positive, emergency physicians were able to detect head, cervical spine, chest, abdominal/pelvic, and thoracic/lumbar spine injuries with sensitivities (95% confidence interval) of 100% (98.6%-100%), 97.4% (94.9%-98.8%), 96.9% (94.2%-98.4%), 97.9% (95.5%-99.1%), and 97.0% (94.3%-98.5%), respectively. For overall diagnostic accuracy, areas under the receiver operating characteristics curve (95% confidence interval) were 0.87 (0.82-0.92), 0.71 (0.62-0.81), 0.81 (0.76-0.86), 0.77(0.71-0.83), 0.74 (0.65-0.84), respectively.

Conclusions

Bedside assessment by emergency physicians before SCT was sensitive in ruling out serious injuries in high-acuity trauma patients with a “very low” rating for injury. However, overall diagnostic accuracy was low, suggesting that SCT should be considered in most high-acuity patients to prevent missing injuries.     

Asymptomatic median mononeuropathy among men with chronic paraplegia

Liang H-W, Wang Y-H, Pan S-L, Wang TG, Huang T-S. Asymptomatic median mononeuropathy among men with chronic paraplegia.

Objectives

To compare electrophysiologic abnormalities of the median nerve in asymptomatic paraplegic subjects and able-bodied controls and to examine the influence of personal factors on these parameters.

Design

Cross-sectional survey.

Setting

University hospital.

Participants

Forty-seven men with paraplegia and 36 able-bodied controls underwent nerve conduction studies on both upper limbs. All were free of hand numbness in the past month, diabetic mellitus, or neuromusculoskeletal injuries to the upper limbs.

Interventions

Not applicable.

Main Outcome Measure

Nerve conduction studies of the bilateral median and ulnar nerves.

Results

Although the 2 groups were of comparable age and had a similar body mass index (BMI), the subjects with paraplegia had a significantly higher proportion of asymptomatic median mononeuropathy than the controls (25.5% vs 5.6%, P=.02). The spinal cord injury (SCI) group had a prolonged median distal latency and a slowed digit-wrist sensory nerve conduction velocity. Multivariate general linear model analysis showed that prolonged motor and sensory latencies of the median nerve were associated with the SCI group and with greater BMI.

Conclusions

The asymptomatic subjects with paraplegia had a significantly higher frequency of median mononeuropathy than the able-bodied controls. There was also an association between BMI and distal latency of the median nerve.     

Relationship of Preinjury Caregiver and Family Functioning to Community Integration in Adults With Traumatic Brain Injury

Sady MD, Sander AM, Clark AN, Sherer M, Nakase-Richardson R, Malec JF. Relationship of preinjury caregiver and family functioning to community integration in adults with traumatic brain injury.

Objective

To investigate the relationship of preinjury caregiver and family functioning to community integration outcomes in persons with traumatic brain injury (TBI).

Design

Inception cohort.

Setting

Three TBI Model Systems inpatient rehabilitation facilities.

Participants

Persons with TBI (N=141) and their caregivers admitted to inpatient rehabilitation and followed up at 1 to 2 years after injury.

Interventions

Not applicable.

Main Outcome Measures

Community Integration Questionnaire and the Social and Occupation scales of the Craig Handicap Assessment and Reporting Technique.

Results

There were significant interactions of several preinjury caregiver and family variables with injury severity. For persons with complicated mild/moderate injury, better family functioning was associated with greater home integration, and less caregiver distress was associated with better social integration. For persons with severe injuries, greater caregiver perceived social support was associated with better outcomes in productivity and social integration.

Conclusions

Preinjury caregiver and family characteristics interact with injury severity to affect outcomes in persons with injury. Research on outcomes should include measures of caregiver and family functioning. Early interventions targeted toward decreasing caregiver distress, increasing support, and improving family functioning may have a positive impact on later outcomes.     

Functional limitations and depression after traumatic brain injury: examination of the temporal relationship

Pagulayan KF, Hoffman JM, Temkin NR, Machamer JE, Dikmen SS. Functional limitations and depression after traumatic brain injury: examination of the temporal relationship.

Objective

To examine the temporal relationship between self-reported injury-related functional limitations and depressive symptomatology after traumatic brain injury (TBI).

Design

A longitudinal cohort study with 3 evaluation points.

Setting

A level I trauma center.

Participants

Adolescents and adults (N=135) with complicated mild to severe TBI (72% had complicated mild injuries) who were recruited within 24 hours of injury and then completed the measure at all 3 time points.

Interventions

Not applicable.

Main Outcome Measures

Sickness Impact Profile and Center for Epidemiological Studies−Depression Scale.

Results

Individuals who reported more depressive symptomatology consistently endorsed more injury-related difficulties, showing the strong relationship between depression and perceived psychosocial functioning. Examination of these relationships over time revealed that increased depressive symptomatology follows higher levels of perceived injury-related changes but that reports of injury-related changes are not associated with earlier depression. These findings suggest a unidirectional temporal relationship between these variables.

Conclusions

Perceived changes in daily functioning appear to influence emotional well-being over time after TBI. However, depressive symptoms do not appear to negatively impact individuals' perception of later functioning. These results further our understanding of the complicated relationship between these variables and may have important implications for treatment of depression after TBI.     

Does adding low doses of oral naltrexone to morphine alter the subsequent opioid requirements and side effects in trauma patients?

Objective

The present study aims to assess the influence of ultra-low doses of opioid antagonists on the analgesic properties of opioids and their side effects.

Methods

In the present randomized, double-blind controlled trial, the influence of the combination of ultra-low-dose naltrexone and morphine on the total opioid requirement and the frequency of the subsequent side effects was compared with that of morphine alone (added with placebo) in patients with trauma in the upper or lower extremities.

Results

Although the morphine and naltrexone group required 0.04 mg more opioids during the study period, there was no significant difference between the opioid requirements of the 2 groups. Nausea was less frequently reported in patients receiving morphine and naltrexone.

Conclusion

The combination of ultra-low-dose naltrexone and morphine in extremity trauma does not affect the opioid requirements; it, however, lowers the risk of nausea.     

Implanted Electrical Stimulation of the Trunk for Seated Postural Stability and Function After Cervical Spinal Cord Injury: A Single Case Study

Triolo RJ, Boggs L, Miller ME, Nemunaitis G, Nagy J, Bailey SN. Implanted electrical stimulation of the trunk for seated postural stability and function after cervical spinal cord injury: a single case study.

Objectives

To explore and quantify the physical and functional effects of stabilizing the torso with electrical stimulation of the paralyzed hip and trunk musculature after motor complete tetraplegia.

Design

Single-subject case study with repeated measures and concurrent controls.

Setting

Academic outpatient rehabilitation center.

Participants

Forty-four-year-old man with C4 American Spinal Injury Association grade A tetraplegia 20 years postspinal cord injury.

Intervention

A surgically implanted multichannel pulse generator and intramuscular stimulating electrodes to activate lumbar erector spinae, quadratus lumborum, and gluteus maximus muscles bilaterally.

Main Outcome Measures

Outcomes assessed with and without stimulation included (1) spinal alignment and pelvic orientation, (2) pulmonary function and ventilatory volumes, (3) forward bimanual reaching distance, (4) seated stability and resistance to externally applied disturbances, (5) maximal force and speed of rowing-like movements, and the ability to (6) independently return to an erect seated position from full forward or lateral flexion and (7) roll in bed without assistance.

Results

Stimulation improved spinal convexity and kyphosis by 26° and 21°, reduced posterior pelvic tilt by 11°, increased forced expiratory volume and vital capacity by 10% and 22%, and improved forward reach by more than 7cm. Average resistance to sagittal disturbances increased by more than 40% (P<.002), and mean force exerted during underhanded pulling more than doubled (P=.014) with stimulation. Restoration of upright sitting in both sagittal and coronal planes and bed turning was made possible through appropriately timed activation of the hip and trunk muscles.

Conclusions

A neuroprosthesis for controlling the paralyzed torso can positively impact spinal alignment, seated posture, pulmonary function, trunk stability, and reach. Stimulation of hip and trunk muscles can improve performance of activities of daily living as well as enable independent wheelchair and bed mobility.     

The association between nursing diagnoses, resource utilisation and patient and caregiver outcomes in a nurse-led home care service: longitudinal study

Background

The information generated by nurses through standardised nursing languages is insufficiently evaluated and exploited, mainly in home care services, as is its potential impact on outcomes.

Objectives

To find out how often nursing diagnoses are made during nursing home care visits, and to explore their relation with use of resources, mortality, institutionalisation and satisfaction.

Design

Observational, longitudinal follow-up study.

Settings

Home care services delivered by Primary Healthcare Districts in Málaga, Costa del Sol, Almería and Granada, in Spain.

Participants

Patients and caregivers who initiated the Home Care Programme.

Methods

The accumulated incidence of nursing diagnosis was analysed over 34 months of follow-up. Diagnoses were made by nurse case managers in their daily practice. Several regression models were devised to analyse their linkage with the use of resources, mortality, institutionalisation and satisfaction.

Results

Two hundred and forty-seven subjects were included (129 patients and 118 caregivers). 93.8 had been diagnosed (2.8 diagnoses per subject). Risk of caregiver strain and mobility impairment accounted for 40% of total home visits (p = 0.033). Significant differences were observed in the use of physiotherapy and rehabilitation services. The home visits for caregivers were, in 78% of cases, due to the recipient’s baseline functional status. No relation was detected for institutionalisation or for patient satisfaction. There was a higher rate of anxiety diagnosed in the caregiver when the recipient was at greater risk for mortality (RR: 2.08 CI 95%: 1.26-3.42) (p = 0.012).

Conclusions

These data confirm results from other studies which find nursing diagnoses to be sound predictors of resources use. Their synergy with other case-mix systems in home care should be investigated.     

Work-related musculoskeletal disorders affecting members of the Chartered Society of Physiotherapy

Objective

To estimate the prevalence of work-related musculoskeletal disorders from a snapshot sample of members of the Chartered Society of Physiotherapy (CSP); the trade union, educational and professional body for physiotherapists, physiotherapy assistants and physiotherapy students in the UK. The distribution of musculoskeletal disorders against different variables, including age of therapist, years in practice and clinical specialty, was also investigated. We set out to highlight the job tasks that injured physiotherapists associated with their complaint and to identify any preventive strategies that injured physiotherapists adopted to prevent re-injury.

Design

A self-administered questionnaire was posted to a randomly selected sample taken from the membership database of the CSP.

Participants

Ten percent (n = 3661) of registered physiotherapists, physiotherapy assistants and physiotherapy students on clinical placement.

Main instrument

Questionnaire based on the Standardised Nordic Questionnaire.

Results

Reported career prevalence of work-related musculoskeletal disorders in members of the CSP was 68%. Previous 12-month prevalence was 58%, and 42% reported musculoskeletal symptoms in the last 12 months that lasted for more than 3 days. The low back was the body area identified by 44% of injured respondents as their most significant injury. Nearly one-third (32%) of injured respondents first experienced their worst injury within 5 years of graduation. A greater number of respondents (59%) were aged 30 years or under when their most serious injury occurred. Injured respondents rated ‘performing the same tasks over and over’, ‘working in the same position for long periods’ and ‘treating a large number of patients in 1 day’ as the three most influential job risk factors contributing to injury.

Conclusions

Younger physiotherapists and newly qualified graduates appear to be most in need of intervention services aimed at reducing injury rates. Official action is undermined by injured physiotherapists seeking informal treatment from colleagues rather than reporting injury to their manager, helping to keep work-related injury a hidden problem. Physiotherapists should be encouraged to report workplace injury, and barriers to official reporting should be identified.     

Metabolic and Biomechanical Effects of Velocity and Weight Support Using a Lower-Body Positive Pressure Device During Walking

Grabowski AM. Metabolic and biomechanical effects of velocity and weight support using a lower-body positive pressure device during walking.

Objectives

To determine how changes in velocity and weight support affect metabolic power and ground reaction forces (GRFs) during walking using a lower-body positive pressure (LBPP) device. To find specific velocity and weight combinations that require similar aerobic demands but different peak GRFs.

Design

Repeated measures.

Setting

University research laboratory.

Participants

Healthy volunteer subjects (N=10).

Interventions

Subjects walked 1.00, 1.25, and 1.50m/s on a force-measuring treadmill at normal weight (1.0 body weight [BW]) and at several fractions of BW (.25, .50, .75, .85 BW). The treadmill was enclosed within an LBPP apparatus that supported BW.

Main Outcome Measures

Metabolic power, GRFs, and stride kinematics.

Results

At faster velocities, peak GRFs and metabolic demands were greater. In contrast, walking at lower fractions of BW attenuated peak GRFs and reduced metabolic demand compared with normal weight walking. Many combinations of velocity and BW resulted in similar aerobic demands, yet walking faster with weight support lowered peak GRFs compared with normal weight walking.

Conclusions

Manipulating velocity and weight using an LBPP device during treadmill walking can reduce force yet maintain cardiorespiratory demand. Thus, LBPP treadmill training devices could be highly effective for rehabilitation after orthopedic injury and/or orthopedic procedures.     

The association of functional oral intake and pneumonia in patients with severe traumatic brain injury

Hansen TS, Larsen K, Engberg AW. The association of functional oral intake and pneumonia in patients with severe traumatic brain injury.

Objectives

To investigate the incidence and onset time of pneumonia for patients with severe traumatic brain injury (TBI) in the early phase of rehabilitation and to identify parameters associated with the risk of pneumonia.

Design

Observational retrospective cohort study.

Setting

Subacute rehabilitation department in a university hospital in Denmark.

Participants

Patients (N=173) aged 16 to 65 years with severe TBI who were admitted during a 5-year period. Patients are transferred to the brain injury unit as soon as they ventilate spontaneously.

Interventions

Not applicable.

Main Outcome Measure

Pneumonia.

Results

Twenty-seven percent of the patients admitted to the brain injury unit were in treatment for pneumonia; pneumonia developed in 12% of the patients during rehabilitation; the condition occurred within 19 days of admission in all but 1 patient. Of these patients, 81% received nothing by mouth. Three factors identified patients at highest risk of pneumonia: Glasgow Coma Scale score less than 9 (1 day after cessation of sedation); Rancho Los Amigos Scale score less than 3 (on admission); and no oral intake on admission. Having a tracheotomy tube and/or feeding tube was also associated with a higher occurrence of pneumonia.

Conclusions

Among patients with severe TBI, 27% had pneumonia at transfer from the intensive care unit. Pneumonia developed in only 12% of the participants during rehabilitation. Patients with a low level of consciousness and patients with a tracheotomy tube or feeding tube had a higher likelihood of pneumonia.     

Provider perspectives on rehabilitation of patients with polytrauma

Friedemann-Sánchez G, Sayer NA, Pickett T. Provider perspectives on rehabilitation of patients with polytrauma.

Objectives

To describe, from the perspective of U.S. Department of Veterans Affairs (VA) polytrauma rehabilitation providers, (1) patients with combat-related polytrauma and their rehabilitation, (2) polytrauma patient family member involvement in rehabilitation, and (3) the impact on providers of providing polytrauma rehabilitation.

Design

Qualitative study based on rapid assessment process methodology, which included semistructured interviews, observation, and use of a field liaison.

Setting

The 4 VA polytrauma rehabilitation centers (PRCs).

Participants

Fifty-six purposefully selected PRC providers and providers from consulting services.

Interventions

Not applicable.

Main Outcomes Measures

Provider self-report of polytrauma patient characteristics, polytrauma patient family member involvement in rehabilitation, and the impact of polytrauma rehabilitation on providers themselves.

Results

According to PRC providers, polytrauma patients are younger than VA rehabilitation patients. Strong military identities affect rehabilitation needs and reactions to severe injury. The public and the media have particular interest in war-injured patients. Patients with blast-related polytrauma have unique constellations of visible (including amputations, craniectomies, and burns) and invisible (including traumatic brain injury, pain, and posttraumatic stress disorder) injuries. Providers have adjusted treatment strategies and involved services outside of rehabilitation because of this clinical complexity. Family members are intensely involved in rehabilitation and have service needs that may surpass those of families of rehabilitation patients without polytrauma. Sources of provider stress include new responsibilities, media attention, increased oversight, and emotional costs associated with treating severely injured young patients and their families. Providers also described the work as deeply rewarding.

Conclusions

The VA should prioritize the identification or development and implementation of strategies to address family member needs and to monitor and ensure that PRC providers have access to appropriate resources. Future research should determine whether findings generalize to patients injured in other wars and to people who sustain polytraumatic injuries outside of a war zone, including victims of terrorist attacks.     

Impact of Traumatic Brain Injury on Participation in Leisure Activities

Wise EK, Mathews-Dalton C, Dikmen S, Temkin N, Machamer J, Bell K, Powell JM. Impact of traumatic brain injury on participation in leisure activities.

Objective

To determine how participation in leisure activities for people with traumatic brain injury (TBI) changes from before injury to 1 year after injury.

Design

Prospective evaluation of leisure participation at 1 year after TBI.

Setting

Level I trauma center.

Participants

Rehabilitation inpatients (mean age, 35.3 years; 77% male; 77% white) with moderate to severe TBI (N=160).

Interventions

Not applicable.

Main Outcome Measure

Functional Status Examination.

Results

At 1 year after injury, 81% had not returned to preinjury levels of leisure participation. Activities most frequently discontinued included partying, drug and alcohol use, and various sports. The activity most often reported as new after injury was watching television. Of the small fraction who returned to preinjury levels, 70% did so within 4 months of injury. Sixty percent of those who did not return to preinjury levels were moderately to severely bothered by the changes.

Conclusions

At 1 year after injury, many TBI survivors engage in a reduced number of leisure activities, which are more sedentary and less social, with a substantial fraction dissatisfied with these changes. While discontinuing some activities may be viewed as a positive change, there are few new ones to replace them.