Institute of Health Sciences, Hacettepe University, Ankara,Turkey.
Faculty of Physical Therapy and Rehabilitation, Hacettepe University, Ankara,Turkey.
J Sport Rehabil. 2023 May 8;32(6):674-686. doi: 10.1123/jsr.2022-0382. Print 2023 Aug 1.
Slideboards are commonly used in exercise programs, but there is limited information about how they affect muscle activities during exercise. We aim to compare the activation levels of quadriceps and hamstring muscles and hip- and knee-flexion angles during lunge and single-leg squat exercises between normal ground and slideboard in physically active individuals.
Cross-sectional study.
Thirty healthy individuals (age: 23.83 [2.84] y, body mass index: 21.75 [1.72] kg/m2) were included in the study. Surface electromyography was used to measure vastus medialis, vastus lateralis, biceps femoris, and semitendinosus activation levels during reaching and returning phases of the forward, lateral, and back lunges and squats that were performed on the normal ground and slideboard. Exercises were performed at a slow pace (60 beats/min). Hip- and knee-flexion angles during the exercises were evaluated by using 2-dimensional motion analysis. Repeated measures of analysis of variance were used for statistical analysis.
Vastus medialis and vastus lateralis activation levels were greater during reaching and returning phases of the exercises on slideboard compared with normal ground (P < .05). However, semitendinosus and biceps femoris activity were greater only during the returning phase of the forward lunge (P < .001) and the returning phase of the back squat (P = .002, P = .009, respectively). Hip-to-knee flexion ratios were closer to 1 when the forward lunge (P < .001), back lunge (P = .004), and forward squat (P = .001) exercises were performed on a slideboard.
In exercise programs that target the quadriceps and hamstring muscles, slideboards can be effectively used in exercise progressions as they can increase muscle activity. Moreover, squat and lunge exercises on slideboard with a slow pace may also be helpful for improving the balance between hip- and knee-flexion angles.
滑垫在运动计划中被广泛应用，但关于其在运动过程中如何影响肌肉活动的信息有限。我们旨在比较在活跃个体中，正常地面和滑垫上进行的弓步和单腿深蹲练习时，股四头肌和腘绳肌的激活水平以及髋关节和膝关节的屈伸角度。
横断面研究。
本研究纳入了 30 名健康个体（年龄：23.83 [2.84] 岁，体重指数：21.75 [1.72] kg/m2）。在进行正常地面和滑垫上的前向、侧向和后向弓步及深蹲的伸展和返回阶段时，使用表面肌电图测量股直肌、股外侧肌、股二头肌和半腱肌的激活水平。运动以缓慢的速度（60 次/分钟）进行。通过二维运动分析评估运动过程中的髋关节和膝关节屈伸角度。采用重复测量方差分析进行统计学分析。
与正常地面相比，滑垫上练习的伸展和返回阶段股直肌和股外侧肌的激活水平更高（P <.05）。然而，只有在前向弓步的返回阶段（P <.001）和后向深蹲的返回阶段（P =.002，P =.009），半腱肌和股二头肌的活动更高。当进行滑垫上的前向弓步（P <.001）、后向弓步（P =.004）和前向深蹲（P =.001）练习时，髋关节与膝关节的屈伸比更接近 1。
在针对股四头肌和腘绳肌的运动计划中，滑垫可以作为一种有效的运动进展工具，因为它可以增加肌肉活动。此外，在滑垫上进行缓慢的深蹲和弓步练习也有助于改善髋关节和膝关节屈伸角度之间的平衡。
