Department of Intervention Research in Exercise Training, Institute of Exercise Training and Sport Informatics, German Sport University Cologne, Am Sportpark Müngersdorf 6, 50933, Cologne, Germany.
Eur Geriatr Med. 2023 Jun;14(3):547-555. doi: 10.1007/s41999-023-00789-8. Epub 2023 May 9.
Handgrip strength is considered as important indicator for general fitness in older adults. However, it does not notably reflect adaptations from whole-body training but may reflect adaptions of multicomponent exercise training. These approaches seem to be more functional and related to relevant daily tasks. Effects of multicomponent agility training on handgrip strength are analysed.
Healthy older adults (N = 79, 69.3 ± 4.4 years, 64% female) were randomly assigned to an intervention (IG) or control group (CG). IG took part in a twice weekly 60 min multicomponent agility training for 12 months. Adherence rate of the participants was 75 ± 10 %.
Neither maximum handgrip strength (F) differed between groups (IG: 318 ± 97 N, CG: 302 ± 92 N) nor did it change after the intervention (IG: 315 ± 90 N, CG: 301 ± 97 N). Mixed ANOVA for F (F(1,49) = 0.018, p = 0.893) revealed no significant group × time interaction with an effect size of [Formula: see text]. Similar results were observed for rate of force development (RFD) (F(1,49) = 0.038, p = 0.847) with an effect size [Formula: see text] . RFD did not differ between groups in pre (IG: 876 ± 585 N/s, CG: 712 ± 303 N/s) and post (IG: 890 ± 424 N/s, CG: 702 ± 368 N/s) measurements. Correlation for ACE and F (r(64) = - 0.367, p = 0.005) and for RFD (r(64) = - 0.487, p < 0.001) was found to be negative.
A 1-year multicomponent agility training does not affect handgrip strength in healthy older adults. However, handgrip strength (F and RFD) is associated with agility, thus both handgrip strength indicators and agility might serve as local and functional vitality surrogates.
握力被认为是老年人整体健康的重要指标。然而，它并不能显著反映全身训练的适应性，而可能反映多组分运动训练的适应性。这些方法似乎更具功能性，与相关的日常任务相关。分析了多组分敏捷训练对握力的影响。
健康老年人（N=79，69.3±4.4 岁，64%为女性）被随机分配到干预组（IG）或对照组（CG）。IG 每周参加两次，每次 60 分钟的多组分敏捷训练，持续 12 个月。参与者的依从率为 75±10%。
握力（F）在组间无差异（IG：318±97 N，CG：302±92 N），干预后也无变化（IG：315±90 N，CG：301±97 N）。F 的混合方差分析（F（1,49）=0.018，p=0.893）显示，组×时间无显著交互作用，效应大小为[公式：见正文]。力发展速率（RFD）也观察到类似的结果（F（1,49）=0.038，p=0.847），效应大小为[公式：见正文]。IG 组和 CG 组在 ACE 和 F（r（64）=-0.367，p=0.005）以及 RFD（r（64）=-0.487，p<0.001）之间存在负相关。
1 年多组分敏捷训练不会影响健康老年人的握力。然而，握力（F 和 RFD）与敏捷性相关，因此握力指标和敏捷性都可以作为局部和功能性活力的替代指标。
