The Hypotensive Effects of Isometric Handgrip Training Using an Inexpensive Spring Handgrip Training Device
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Bibliographic record
Abstract
In Brief PURPOSE Research has demonstrated the efficacy of isometric handgrip (IHG) training to attenuate resting blood pressure. These studies have relied on the use of programmable digital handgrips for training. This study aimed to determine the effectiveness of simple, inexpensive spring-loaded handgrip devices in producing hypotensive effects. METHODS The study was a randomized controlled trial of 49 normotensive participants (66.4 ± 0.9 years; 57% women). Participants in the exercise group (n = 25) trained and had blood pressure measured twice weekly for 8 weeks. Control participants (n = 24) completed weekly blood pressure measurements. Pre- and posttraining measurements were each assessed over 3 visits. Statistical analysis of the pre-post data involved analyses of variance and hierarchical linear modeling was used to examine changes over time. RESULTS Following 8 weeks, IHG participants demonstrated significant reductions in resting blood pressure. Systolic and diastolic blood pressures were reduced from 122 ± 3 mm Hg to 112 ± 3 mm Hg (P < .001) and from 70 ± 1 mm Hg to 67 ± 1 mm Hg (P < .05), respectively. Hierarchical linear modeling analysis also revealed a significant cross-level (ie, group ÷ time) interaction, with an estimated reduction in systolic blood pressure of 5.4 mm Hg (P < .001) over the training period in the IHG group. CONCLUSIONS In agreement with previous studies, IHG training reduced resting arterial pressure following 8 weeks of training. Hypotensive effects linked to IHG training may be achieved using simple, inexpensive spring handgrip training devices and may provide a convenient and affordable therapeutic alternative or adjunctive therapy for lowering blood pressure. Isometric handgrip (IHG) training with expensive digital handgrips has been shown to reduce blood pressure in hypertensive and normotensive participants. The results of this study indicate that an inexpensive spring handgrip is sufficient to attenuate blood pressure. These findings improve the practicality of IHG training as an economic antihypertensive therapy.
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it