Muscle perfusion and the effect of compression garments in delayed-onset muscle soreness assessed with arterial spin labeling magnetic resonance imaging
Abstract:Background: There is limited information about perfusion in exercise-induced muscle injuries such as delayed-onset muscle soreness (DOMS) and the effect of compression garments as a therapeutic strategy during the regeneration phase. The purpose of this prospective, explorative study was to evaluate muscle perfusion in DOMS and to assess the effect of compression garments at resting conditions and during DOMS by magnetic resonance (MR) arterial spin labeling (ASL).Methods: DOMS was induced from 03/2021 to 04/2… Show more
“…In healthy individuals, muscle tissue typically shows an immediate recovery of oxygen levels after cessation of exercise‐induced stress (healthy HR2S) (Barron et al, 1997; Meixner et al, 2022; Meneses et al, 2020). This phenomenon, known as excess postexercise oxygen consumption (Børsheim & Bahr, 2003), represents the muscle's attempt to repay the oxygen “debt” incurred during prolonged contractions (Barron et al, 1997; Shang et al, 2013).…”
Section: Discussionmentioning
confidence: 99%
“…However, when oxygen consumption surpasses the muscle supply during activity, the levels of OxyHb decrease (Beerthuizen, 1993). Under this concept, pictures were collected at three different time points within the baseline and 4‐weeks visits: (1) pre‐therapy, t 0 (0 min) to record steady‐state basal levels, (2) end‐of‐therapy, t 60 (60 min) to assess oxygen consumption (Dobson & Gladden, 1985), and (3) 10 min after stopping therapy, t 70 to assess the reperfusion period (Meixner et al, 2022; Meneses et al, 2020) or HR2S.…”
Muscle deconditioning and impaired vascular function in the lower extremities (LE) are among the long‐term symptoms experienced by COVID‐19 patients with a history of severe illness. These symptoms are part of the post‐acute sequelae of Sars‐CoV‐2 (PASC) and currently lack evidence‐based treatment. To investigate the efficacy of lower extremity electrical stimulation (E‐Stim) in addressing PASC‐related muscle deconditioning, we conducted a double‐blinded randomized controlled trial. Eighteen (n = 18) patients with LE muscle deconditioning were randomly assigned to either the intervention (IG) or the control (CG) group, resulting in 36 LE being assessed. Both groups received daily 1 h E‐Stim on both gastrocnemius muscles for 4 weeks, with the device functional in the IG and nonfunctional in the CG. Changes in plantar oxyhemoglobin (OxyHb) and gastrocnemius muscle endurance (GNMe) in response to 4 weeks of daily 1 h E‐Stim were assessed. At each study visit, outcomes were measured at onset (t0), 60 min (t60), and 10 min after E‐Stim therapy (t70) by recording ΔOxyHb with near‐infrared spectroscopy. ΔGNMe was measured with surface electromyography at two time intervals: 0–5 min (Intv1) and: 55–60 min (Intv2). Baseline OxyHb decreased in both groups at t60 (IG: p = 0.046; CG: p = 0.026) and t70 (IG = p = 0.021; CG: p = 0.060) from t0. At 4 weeks, the IG's OxyHb increased from t60 to t70 (p < 0.001), while the CG's decreased (p = 0.003). The IG had higher ΔOxyHb values than the CG at t70 (p = 0.004). Baseline GNMe did not increase in either group from Intv1 to Intv2. At 4 weeks, the IG's GNMe increased (p = 0.031), whereas the CG did not change. There was a significant association between ΔOxyHb and ΔGNMe (r = 0.628, p = 0.003) at 4 weeks in the IG. In conclusion, E‐Stim can improve muscle perfusion and muscle endurance in individuals with PASC experiencing LE muscle deconditioning.
“…In healthy individuals, muscle tissue typically shows an immediate recovery of oxygen levels after cessation of exercise‐induced stress (healthy HR2S) (Barron et al, 1997; Meixner et al, 2022; Meneses et al, 2020). This phenomenon, known as excess postexercise oxygen consumption (Børsheim & Bahr, 2003), represents the muscle's attempt to repay the oxygen “debt” incurred during prolonged contractions (Barron et al, 1997; Shang et al, 2013).…”
Section: Discussionmentioning
confidence: 99%
“…However, when oxygen consumption surpasses the muscle supply during activity, the levels of OxyHb decrease (Beerthuizen, 1993). Under this concept, pictures were collected at three different time points within the baseline and 4‐weeks visits: (1) pre‐therapy, t 0 (0 min) to record steady‐state basal levels, (2) end‐of‐therapy, t 60 (60 min) to assess oxygen consumption (Dobson & Gladden, 1985), and (3) 10 min after stopping therapy, t 70 to assess the reperfusion period (Meixner et al, 2022; Meneses et al, 2020) or HR2S.…”
Muscle deconditioning and impaired vascular function in the lower extremities (LE) are among the long‐term symptoms experienced by COVID‐19 patients with a history of severe illness. These symptoms are part of the post‐acute sequelae of Sars‐CoV‐2 (PASC) and currently lack evidence‐based treatment. To investigate the efficacy of lower extremity electrical stimulation (E‐Stim) in addressing PASC‐related muscle deconditioning, we conducted a double‐blinded randomized controlled trial. Eighteen (n = 18) patients with LE muscle deconditioning were randomly assigned to either the intervention (IG) or the control (CG) group, resulting in 36 LE being assessed. Both groups received daily 1 h E‐Stim on both gastrocnemius muscles for 4 weeks, with the device functional in the IG and nonfunctional in the CG. Changes in plantar oxyhemoglobin (OxyHb) and gastrocnemius muscle endurance (GNMe) in response to 4 weeks of daily 1 h E‐Stim were assessed. At each study visit, outcomes were measured at onset (t0), 60 min (t60), and 10 min after E‐Stim therapy (t70) by recording ΔOxyHb with near‐infrared spectroscopy. ΔGNMe was measured with surface electromyography at two time intervals: 0–5 min (Intv1) and: 55–60 min (Intv2). Baseline OxyHb decreased in both groups at t60 (IG: p = 0.046; CG: p = 0.026) and t70 (IG = p = 0.021; CG: p = 0.060) from t0. At 4 weeks, the IG's OxyHb increased from t60 to t70 (p < 0.001), while the CG's decreased (p = 0.003). The IG had higher ΔOxyHb values than the CG at t70 (p = 0.004). Baseline GNMe did not increase in either group from Intv1 to Intv2. At 4 weeks, the IG's GNMe increased (p = 0.031), whereas the CG did not change. There was a significant association between ΔOxyHb and ΔGNMe (r = 0.628, p = 0.003) at 4 weeks in the IG. In conclusion, E‐Stim can improve muscle perfusion and muscle endurance in individuals with PASC experiencing LE muscle deconditioning.
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