| Moreira, et al., 2021 ( 36 ) ; Brazil |
Experimental, randomized controlled clinical trial, single-blind, parallel-group with allocation concealment |
Level II 3 |
IG*: 46 nursing assistants; and 44 from the CG † |
The program was applied twice a week for 30 minutes per session. The training consisted of exercises for spinal stabilization. Each session was divided into three steps: 1) Five minutes of warm-up exercises; 2) 20 minutes of therapeutic exercises; 3) Five minutes of hamstring stretching and cool-down exercises at the end of the session. |
The participants showed improvements in trunk flexor muscle strength with an effect size of 0.77 ( p =0.002) and in the control of lower back symptoms by 6.25 ( p =0.002) after the therapeutic exercise program. The positive association between exercise exposure and symptom improvement was 2.04 times higher for the IG* than for the CG † (OR ‡ =2.04; 95% CI § 1.82-2.72). |
| Taulaniemi, et al., 2020 ( 37 ) ; Finland |
Experimental, four-arm randomized controlled clinical trial |
Level II 3 |
IG*: 165 healthcare workers and 54 in the CG † . Of these, 87% were nurses |
A Pilates-based exercise program focused on controlling the neutral posture of the spine, divided into three stages. Stage 1. Supervised neuromuscular exercise classes. Stages 2 and 3: One supervised class and one home session with the aid of a DVD or a study-specific booklet. During this stage, the participants were allowed to exercise in supervised group sessions. |
Practicing Pilates with good adherence reduced work-related fear-avoidance beliefs (FABs) and decreased low back pain intensity ( r =0.16, p =0.05). The study identified that motivational strategies should target individuals with low schooling levels, lower physical fitness and high FAB levels to achieve better exercise adherence. |
| Oka, et al., 2019 ( 38 ) ; Japan |
Analytical, prospective, randomized, parallel-group, multicenter study with centralized evaluations |
Level II 3 |
4,767 nurses 1799 in group A, 1420 in group B, and 1548 in Group C from 12 hospitals |
Group A served as the Control Group. The participants in groups B and C received an exercise manual detailing how to perform the standing back extension exercise “One Stretch,” along with a 30-minute seminar. In Group B, participants only attended the 30-minute seminar. In Group C, both physical and psychological approaches were incorporated into the treatment of low back pain. |
The standing back extension exercise called “One Stretch” effectively improved and prevented low back pain. The improvement rates were 13.3%, 23.5% and 22.6% in groups A, B and C, respectively. The pain worsening rates were 13.0%, 9.6% and 8.1%, respectively, decreasing as the intervention level increased (p<0.001). |
| Imai, et al., 2021 ( 39 ) ; Japan |
Experimental, randomized controlled parallel-group trial |
Level II 3 |
104 participants 53 in the IG* and 51 in the CG † , including healthcare workers such as nurses |
The program consisted of a six-month plan involving progressive exercises and pain neuroscience education (PNE). The stretching sessions lasted 20 minutes and the walking sessions lasted approximately 30 minutes, performed 3-4 times per week. The Control Group received general feedback after completing a questionnaire. |
The study demonstrated that a combination of PNE and exercise yielded better outcomes for patients, including reduced presenteeism ( F =12.87, p <0.001, η²=0.94), lower pain intensity ( F =11.0, p <0.001, η²=0.1), decreased physical stress and improved psychological status and quality of life. |
| Lopes, et al., 2019 ( 40 ) ; Brazil |
Experimental, prospective, open-label trial with repeated measures |
Level II 2 |
IG*: 64 nursing technicians No CG † was included |
An adapted mindfulness program, consisting of weekly 60-minute sessions over 8 consecutive weeks. The participants were guided to practice daily meditation at home for 20 minutes, incorporating mindfulness into their daily routines and activities as an informal practice. During face-to-face meetings, exercises focused on pain management, breathing techniques, body scan, mindful walking, mindful movements with light body postures, sitting, lying down and meditation. |
The mindfulness program demonstrated significant reductions in musculoskeletal symptoms, anxiety, depression and catastrophic pain ( p <0.001). A particularly significant finding was the reduction in catastrophic pain levels (η²=0.203; p <0.001) and MSP (η²=0.200; p <0.001). The positive effects were observed after 8 weeks and remained stable through the 12-week follow-up period. |
| Morais, et al., 2023 ( 41 ) ; Brazil |
Experimental, randomized clinical trial, triple-blind (patient, statistician and outcome evaluators) |
Level II 5 |
IG*: 34 workers; CG †: 33 workers, including healthcare personnel (e.g.: Nursing staff) diagnosed with chronic spinal pain |
The participants received eight sessions of seed-based auriculotherapy, administered twice a week and lasting a mean of 10 to 15 minutes per session. The workers were instructed to leave the seeds in place for three days, manually stimulating them at least three times a day, applying pressure 15 times on each auricular point. |
Seed-based auriculotherapy demonstrated positive therapeutic effects in reducing pain intensity among healthcare workers with chronic spinal pain. The IG* showed a significant 34% reduction in pain when compared to the CG † ( p =0.007). Regarding pain interference in daily living activities, a reduction in mean values was observed in both groups ( p <0.05). Additionally, a significant reduction in medication use was noticed ( p =0.013). |
| Soler-Font, et al., 2019 ( 42 ) ; Spain |
Experimental, cluster-randomized controlled trial with two arms and a control group |
Level II 3 |
IG*: 138 nurses CG †: 119 nurses |
The intervention incorporated components targeting all three prevention levels. The primary prevention included: 1) Occupational risk factors to protect healthy workers from MSDs and MSD-related absenteeism. through participatory ergonomics; and 2) Promotion of healthy lifestyles at work (physical activity, emotional well-being and diet). Secondary and tertiary prevention involved a case management service for the early identification of MSPs. |
The intervention was effective in reducing pain by up to 63% (OR ‡ =0.37; 95% CI §: 0.14-0.96) in the neck, shoulders and upper back among Nursing staff. A non-statistically significant reduction in lower back pain was observed in the Intervention Group when compared to the Control Group. Work functioning remained stable over the 12-month follow-up period in the Intervention Group, whereas a decline was noticed in the Control Group ( p <0.05). |
| Sezgin & Esin, 2018 ( 43 ) ; Turkey |
Pre-experimental study with pretest and posttest for non-equivalent control groups |
Level II 2 |
61 nurses, 30 in the IG* and 31 in the CG † |
The Ergonomic Risk Management Program (ERMP) consisted of two components: 1) A two-week video-based training focused on musculoskeletal risks for ICU nurses, complemented with preventive exercises; and 2) Personal interviews with nurses aimed at identifying predisposing, reinforcing and facilitating factors for behavioral change. |
ERMP was effective in increasing exercise frequency ( p =0.017) and reducing musculoskeletal pain ( p =0.017) as well as ergonomic risk levels among ICU nurses ( p <0.05). |