Workout improves balance and agility

Women’s Health on May 15 highlighted a 10-minute floor workout that readers can do lying on their backs, pointing to new peer-reviewed research from Japan on balance and agility. The article described a no-equipment routine meant to fit into a short daily window and drew on a study published April 29 in PLOS One. In that study, researchers reported improvements in balance, side-step performance and trunk flexibility after two weeks of daily practice. The research did not show gains in strength or power tests, which the authors said narrowed what the routine appears to change. ### What exactly did the study test? Aya Atomi and colleagues tested a “supine exercise program” designed to connect trunk stability with lower-extremity coordination in healthy young adults. The paper said participants performed the routine once a day for 10 minutes over two weeks, with all movements done in a lying-down position. The April 29 paper used two study designs. (womenshealthmag.com) Experiment 1 was a randomized crossover trial involving 17 healthy males, while Experiment 2 used a pre-post design with 22 healthy males and females and examined dynamic balance during a side-step task. ### Which results changed after two weeks? The PLOS One paper reported significant improvements in static balance, side-step kinematics and sitting trunk flexion after the two-week program. (journals.plos.org) The same paper said grip strength, standing long jump and other power-related tests did not show significant change. The authors wrote that the routine was associated with improved “body balance and agility,” while the abstract described the position as “biomechanically safe.” Those are the central findings behind the coverage that followed in Women’s Health and other outlets. (journals.plos.org) ### What were people actually doing on the floor? NBC News, citing the study and reporting on April 29, said the routine included four supine exercises and took about 10 minutes a day. (journals.plos.org) The report described abdominal activation, a bridge-style hip contraction, heel pushes and toe-movement drills performed while lying on the back with the knees raised for parts of the sequence. Medical News Today, in a separate report on the study, also described the program as low intensity and floor-based. That outlet said the exercises were done in a stable lying position, a detail that helps explain why the routine was framed as accessible in consumer coverage. ### Who conducted the research? The paper lists Aya Atomi, Mizuki Sato, Masaki Oyauchi, Wataru Takano, Miho Shimizu, Toshiyuki Watanabe, Tomoaki Atomi and Yoriko Atomi as authors. (nbcnews.com) The printable PLOS record identifies the lead institutional affiliation as Material Health Science at the Graduate School of Engineering, Tokyo University of Agriculture and Technology in Koganei, Tokyo. (medicalnewstoday.com) Yoriko Atomi is identified on a laboratory profile page as a guest professor at Tokyo University of Agriculture and Technology and a professor emeritus at the University of Tokyo. Yahoo Health, citing an email from Atomi, reported that doing the exercises while lying down lets people focus on the movements without the gravitational demands of standing posture. ### How far should readers take these findings? (journals.plos.org) The study population was limited to healthy young adults, and the paper describes short-term effects measured over two weeks. The authors wrote that the approach “may also be useful for fall prevention and early-stage rehabilitation,” but that language appears in the context of potential application rather than a tested outcome in older adults or patients. (celltobody.sakura.ne.jp) Women’s Health presented the routine as a quick, no-gear option for people trying to fit exercise into a crowded day. The underlying paper supports that the program was brief and equipment-free, but its direct evidence comes from a small study in younger participants rather than a broad household population. ### Where can readers find the original research? (journals.plos.org) PLOS One published the paper on April 29 under the title “A supine exercise program linking trunk stability with lower extremity coordination is associated with improved body balance and agility.” The article lists DOI 10.1371/journal.pone.0345749 and trial registrations UMIN000057589 and UMIN000057597. (womenshealthmag.com) Women’s Health linked its May 15 coverage to that study, and the paper remains available through the journal’s website. The author list and institutional affiliations are also included in the journal record for readers who want the original methods and test results. (womenshealthmag.com) (journals.plos.org)