Suitability of active and passive break strategies in workplace health promotion
Conditions
Interventions
Group 1: massage - The 20-minute massage is realised in an automated massage chair using the “refresh” program, which consists of a sequential combination of kneading, rolling, air-pressure, and focal
Sponsors
Institut für Arbeitsmedizin, Sozialmedizin und Umweltmedizin Goethe-Universität Frankfurt
Eligibility
Sex/Gender
All
Age
18 Years to 50 Years
Inclusion criteria
Inclusion criteria: -body mass index (BMI) between 18.5 and 29.9 kg/m² -good general health
Exclusion criteria
Exclusion criteria: -cardiovascular diseases within the last 6 months -renal diseases within the last 6 months -malignant tumours within the last 6 months -women during pregnancy -spinal injuries or traumas -osteoporosis -thrombosis or other venous disorders -acute or chronic infections
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| muscle damage parameters: CK and myoglobin, markers of inflammation: leukocyte count and CRP The primary endpoints of the study are defined as pre–post differences, that is, the change between measurements obtained immediately before the intervention (t0) and those collected directly afterward (t1). These differences are calculated separately for each intervention arm and subsequently compared statistically. Venous blood is collected two times per appointment in suitable tubes before (t0) and directly after each session (t1); EDTA whole blood (9mL) and (serum) plasma (7,5mL) are obtained from the individual’s cubital vein. The laboratory tests are performed by the central laboratory of the University of Frankfurt. Serum concentrations of CK and CRP are analysed using a Roche Cobas 8000 C701 analyser (CRP: immunoturbidimetric assay; CK: IFCC method). MYO is determined on a Roche Cobas 8000 e801 analyser (electrochemiluminescence immunoassay, ECLIA). Leukocyte counts are measured using a Sysmex XN 9000 analyser by flow cytometry. | — |
Secondary
| Measure | Time frame |
|---|---|
| Range of Motion subjective well-being The assessed endpoints include range of motion, measured using the sit-and-reach test and defined as the change in fingertip-to-box distance (cm) between the two measurement time points t0 and t1. Pain perception is evaluated using the Short-Form McGill Pain Questionnaire (MPQ). The endpoints are the pre–post differences of the four scales: normative pain intensity (MPQ I), VAS intensity (MPQ II), overall pain experience (MPQ III), and the total score (sum of I + II + III = MPQ IV). The affective response to the interventions is quantified using the FEELING scale. The endpoint is the change in the point rating (–5 to +5) between the assessment before the intervention and during its maximal phase. Perceived exertion/subjective strain is recorded during the intervention. The endpoint comprises the intervention values of the Borg Rating of Perceived Exertion Scale (BORG 6–20). Evaluation of the intervention (subjective rating of the intervention) with respect to well-being (pleasantness and positivity) is captured using bipolar visual analogue scales. The endpoints are the respective relative scale values, reported as descriptive parameters. | — |
Countries
Germany
Contacts
Public ContactTobias Engeroff
Institut für Arbeitsmedizin, Sozialmedizin und Umweltmedizin Goethe-Universität Frankfurt
Outcome results
None listed