Christopher Hodgetts

Background

Shoulder pain is common among the adult population, but it appears to reduce in prevalence around retirement age. Associations between shoulder pain and work-place exposures, physical activity, or mental health status are unclear and may change with age. This study aimed to determine the prevalence of self-reported shoulder pain in Australian adults across two generations and test the association with occupational factors, physical activity, and mental health.

Methods

In this cross-sectional study we used data from a longitudinal Australian pregnancy cohort (the Raine Study). We analysed data from the children (Gen2) at the 22-year follow-up (N = 1128) and parents (Gen1) at the 26-year follow-up (N = 1098). Data were collected on self-reported shoulder pain, occupational factors (employment status and work description), physical activity, and mental health at the respective follow-ups. Prevalence rates were provided as percentages with 95% confidence intervals. Univariate analysis for group comparisons included chi squared for categorical comparisons. The association of predictor variables and shoulder pain was assessed using logistical regression.

Results

In Gen1 31.4% of adults aged 40–80 reported the presence of shoulder pain in the last month, with no significant difference between females and males. Gen1 participants younger than 65 reported more shoulder pain (OR[95%CI] = 1.80 [1.04–3.09]). Gen2 females (14.7%) reported shoulder pain in either shoulder more frequently than males (7.7%) and bilateral shoulder pain (8.0%) more frequently than males (1.9%). Gen1 had increased odds of reporting shoulder pain if their work was “physical or heavy manual” compared to “sedentary” (OR [95% CI] = 1.659 [1.185–2.323]) and when categorised with depression (OR [95% CI] = 1.940 [1.386–2.715]) or anxiety (OR [95% CI] = 1.977 [1.368–2.857]). Gen2 participants with depression (OR [95% CI] = 2.356 [1.620–3.427]) or anxiety (OR [95% CI] = 2.003 [1.359–2.952]) reported more shoulder pain.

Conclusion

Overall, shoulder pain was more prevalent in young females than males and was more prevalent in those under the age of 65. Cross-sectional associations were established between some occupational factors in older adults and depression in all adults, and shoulder pain.

Background Shoulder pain was previously shown to diminish in older populations and it was suggested that this could be explained by reduced usage with age. Our objectives were to investigate if estimates of shoulder pain continue to increase after the age of 50 in working populations and to compare these estimates in physically demanding occupations with sedentary occupations. Methods A systematic review of retrospective, cross-sectional, prospective, or longitudinal. studies reporting prevalence or incidence of non-specific shoulder pain in occupational groups stratified by age. Searches were conducted in PubMed, Scopus, and CINAHL from inception until January 2020. Study characteristics and prevalence estimates stratified by age were extracted. Two reviewers independently performed a critical analysis of the included studies to determine their validity and risk of bias. Results Twenty studies with a total of 40,487 participants and one study of a clinical data base were included and assigned a direction of the estimates for shoulder pain as either ‘increasing’, ‘remaining stable’ or ‘decreasing’ past the age of 50. Shoulder pain generally increased past 50, with 16 of the 21 included studies reporting higher estimates/odds ratios in older participants. In the more physically active occupations over 50, the estimates increased in 14 of the 18 samples compared to only two of the four involving sedentary occupations. Conclusions Shoulder pain prevalence remains common in workers beyond the age of 50. Prevalence continues to increase in physically demanding occupations. Clinicians should consider factors of occupation when managing shoulder pain.

Objective The purpose of this study was to investigate the association between either hand-eye coordination (HEC) or general self-efficacy (GSE) and spinal-manipulative-therapy (SMT) exam scores. We also measured the interrater reliability of the SMT marking criteria used in our study. Methods Third-year chiropractic students were recruited from the chiropractic spinal technique course at Murdoch University. They completed an alternate-hand wall-toss test to assess HEC and a questionnaire to evaluate GSE. Linear regression models were used to assess the relationships between HEC and GSE on manual-therapy exam scores. Two assessors scored the examination, allowing the investigation of interrater reliability for the SMT marking criteria. Results A total of 33 male and 31 female students, aged 20 to 44 years, completed both the GSE questionnaire and the SMT examination, but only 28 women also completed the HEC test. Male participants had higher scores on both HEC (9.4 additional catches, P < 0.001) and SMT (6.7%, P = .01) compared to female participants. There was no statistically significant relationship between HEC and SMT (P = .932). However, there was a linear relationship between GSE and SMT when adjusted for sex (P = .032). Furthermore, the intraclass correlation coefficient for the marking criteria was moderate to good, at 0.77 (95% confidence interval, 0.63-0.86). Conclusion These preliminary results suggest that when adjusted for sex, a student's GSE may be related to their SMT exam scores. The alternate-hand wall-toss test was not correlated with SMT scores, but other HEC metrics may have a relationship.

Background Shoulder pain is lacking a contemporary comprehensive overview article that summarizes key aspects of the presentation. Objective To provide a contemporary summary of the literature on shoulder pain, including: epidemiology, cost-of-illness, common diagnoses, common treatments, and prognosis. Methods PubMed, CINAHL and Google Scholar were searched using search terms including: shoulder pain, prevalence, epidemiology, diagnosis, risk factors, prognosis, surgery and conservative care. Information from the highest level of evidence available was synthesized and summarized. Results Shoulder pain is the third most common musculoskeletal complaint and several cost of illness studies suggest it is of significance. Common diagnoses can be categorised on the anatomic region such as ‘intra-articular’, ‘anterior shoulder’ and ‘subacromial’. Despite surgery rates increasing in some areas, multiple systematic reviews suggest there is no difference in pain and disability outcomes between surgical interventions and conservative approaches. Several studies have revealed that only 50% of all new cases of shoulder pain completely recovery after six months, and 60% after 12 months. Conclusion Shoulder pain is a relatively common musculoskeletal complaint and costs associated appear reasonably high. Practitioners need to be aware of overlap with diagnostic terms, the equivalence of available interventions, and that shoulder pain conditions may not be self-limiting.

Objective The objective of this study is to determine whether physiotherapy and counselling students, who represent a future generation of two health professions, have differing views about complementary and alternative medicine (CAM). Methods In order to determine physiotherapy and counselling students' self‐rated knowledge and beliefs about CAM and the factors which influence that understanding, a modified 10‐item CAM Health Belief Questionnaire was administered across all year groups to physiotherapy students and counselling students at two universities in Perth, Western Australia. The self‐rated paper‐based survey measured knowledge of CAM among physiotherapy and counselling students, evaluation of their beliefs regarding the use of CAM, factors that influence their knowledge and beliefs, and their likelihood of recommending CAM to future patients. Results A response rate of 96.8% was achieved, with 387 physiotherapy students and 88 counselling students. Moderately positive beliefs about CAM were confirmed in both groups, with mean scores of 42.8/70 for physiotherapy students and 43.3/70 for counselling students. There were no significant differences between the student groups in overall self‐rated knowledge of CAM. The main factors that influenced the students' responses were personal experience for counselling students and scientific evidence for physiotherapy students. Other factors included university training, attitudes of lecturers, tutors and fellow students, cultural background, and opinions of external practitioners. Counselling students were more likely than physiotherapy students to recommend CAM therapies to their future patients. Conclusion The results from this study demonstrate minimal self‐rated knowledge but moderately positive attitudes towards CAM by both physiotherapy and counselling students.

Purpose To report evidence of chronic physical illnesses, mental health disorders, and psychological features as potential risk factors for back pain in children, adolescents, and young adults. Methods This systematic review and meta-analysis included cohort and inception cohort studies that investigated potential risk factors for back pain in young people. Potential risk factors of interest were chronic physical illnesses, mental health disorders (e.g. depression, anxiety), and other psychological features (e.g. coping, resistance). Searches were conducted in MEDLINE, Embase, CINAHL, and Scopus from inception to July 2019. Results Nineteen of 2167 screened articles were included in the qualitative synthesis, and data from 12 articles were included in the meta-analysis. Evidence from inception cohort studies demonstrated psychological distress, emotional coping problems, and somatosensory amplification to be likely risk factors for back pain. Evidence from non-inception cohort studies cannot distinguish between risk factors or back pain triggers. However, we identified several additional factors that were associated with back pain. Specifically, asthma, headaches, abdominal pain, depression, anxiety, conduct problems, somatization, and ‘feeling tense’ are potential risk factors or triggers for back pain. Results from the meta-analyses demonstrated the most likely risk factors for back pain in young people are psychological distress and emotional coping problems. Conclusion Psychological features are the most likely risk factors for back pain in young people. Several other factors were associated with back pain, but their potential as risk factors was unclear due to risk of bias. Additional high-quality research is needed to better elucidate these relationships.

Background There is some evidence and anecdotal reports that high-velocity low-amplitude (HVLA) spinal manipulation therapy (SMT) for non-specific low back pain (NSLBP) may immediately reduce pain in some patients. The mechanism for such a change remains unclear and the evidence is conflicting. The aim of this study was to seek consensus among a sample of expert manual therapists as to the possible clinical predictors that could help identify patients who are most likely to receive instant relief from NSLBP with SMT intervention. Methods Thirty-seven expert chiropractors and manipulative physiotherapists from around the world were invited to participate in a three round online Delphi questionnaire during the second half of 2018. Participants were provided with a list of 55 potential signs and symptoms as well as offering them the option of suggesting other factors in the first round. The variables were rated using a 4-point Likert likelihood scale and a threshold of 75% agreement was required for any item to progress to the next round. Results Of these 37 experts, 19 agreed to participate. Agreement as to the proportion of patients who receive instantaneous relief was minimal (range 10–80%). A total of 62 items were ranked over the 3 rounds, with 18 of these retained following the third round. The highest rated of the 18 was ‘A history including a good response to previous spinal manipulation’. Discussion/conclusion Five categories; patient factors, practitioner factors, signs and symptoms of NSLBP presentation, an instrument of measurement (FABQ), and the presence of cavitation following SMT best describe the overall characteristics of the factors. The 18 factors identified in this study can potentially be used to create an instrument of measurement for further study to predict those patients with NSLBP who will receive instantaneous relief post-SMT.

Background: Spinal manipulation is the primary therapy utilised by chiropractors in the management of their patients. The skills required may feel foreign to chiropractic students as they need strength and endurance in movement patterns they may not have otherwise been exposed to. This may lead to injury while learning manipulative techniques. It is plausible to suggest that the implementation of a strength and conditioning program early in a practitioner's career could reduce the incidence and progression of injuries. The study aims to test the effectiveness of a strength and conditioning program in reducing the risk of chiropractic students' acquiring injuries while learning the skill of spinal manipulation. Methods: This study will involve a prospective cohort of chiropractic students who are currently learning manual therapy at an undergraduate level. Participants will be eligible for inclusion if they are enrolled in 3rd or 4th-year chiropractic manual therapy units at Murdoch University chiropractic course. The intervention group will follow a 12-week strength and conditioning program comprised of preventative exercises that address each body region previously identified as being prone to injury. The control group will complete a 12-week walking program. The primary outcome is injury rate, measured via a short questionnaire. The secondary outcome will be strength, measured via submaximal strength tests. Discussion: The prescribed exercises are aimed at improving the strength and endurance of those muscle groups involved in commonly taught manual therapy tasks. The resistance bands have been chosen as they are inexpensive, simple to implement for the purposes of the study, and acceptably safe. A video format was selected to allow ease of access for participants, provide a detailed description and a visual representation of the exercises to be performed. A questionnaire was designed as a means to assess the influence of the strength and conditioning program on injury rate and the impact this may have on the students' ability to continue practicing. The International Physical Activity Questionnaire has been chosen to measure the participants level of activity before beginning the exercise program. Conclusion: This research protocol will be the first large-scale study to investigate the effectiveness of a strength and conditioning program to reduce injuries within chiropractic students learning manual therapy.

Background: Complementary and alternative medicine (CAM) is becoming more widely used in the community however there are differences in knowledge and attitudes among and within the various health professions. Chiropractic and nursing students represent a future generation of two health profession groups who may have differing views on CAM. The objectives of this study were to investigate the knowledge, attitudes and beliefs of nursing and chiropractic students about CAM. To investigate the factors that influence their attitudes and beliefs and their likelihood of recommending CAM; and to compare the findings between nursing and chiropractic students to determine similarities and differences. Methods: A modified and pre-tested survey including a previously validated 10-item CAM Health Belief Questionnaire (CHBQ) was administered to nursing and chiropractic students at Murdoch University. Student's demographics were collected as well as other information regarding knowledge, attitudes, influences and use of CAM. Results: Three hundred twenty-one nursing and 227 chiropractic students responded with a 91% response rate. The CHBQ overall mean scores for nursing and chiropractic students were 47.6 and 47.4 out of possible 70 respectively, confirming positive attitudes toward CAM in both groups. Nursing and chiropractic students also demonstrated similar knowledge levels. Factors that were most influential in shaping both chiropractic and nursing students' attitudes and beliefs towards CAM were personal experience and the influence of external peers. Nursing students would not dissuade future patients from CAM, however chiropractic students were more likely to recommend CAM to their future patients. Conclusions: Nursing and chiropractic students demonstrate relatively positive attitudes and beliefs towards CAM despite, their limited knowledge concerning CAM modalities generally.