Repozytorium publikacji - Politechnika Gdańska

Background and aims This study evaluated whether stored iron determines the adaptive response induced by Nordic walking (NW) training combined with 10 hours’ time-restricted eating (TRE) in older adults. Trial design and methods Twenty-four participants underwent 12-week NW training supported by 10 h of TRE. The group was divided due to baseline ferritin concentration low < 75 ng/ml (LF) and high level ≥ 75 ng/ml (HF). Body composition, physical fitness and blood collection were assessed at baseline and post-intervention. Results NW + TRE induced a statistically significant decrease in ferritin levels in all participants (p = 0.01). Additionally, statistically significant intergroup differences in the LF vs. HF in the reduction of serum ferritin levels (p = 0.04) were observed. The procedure NW + TRE diminished HbA1c levels (p < 0.01) and glucose in all participants (p = 0.05). The range of HbA1c drop was more pronounced among those participants who experienced a greater decrease in the stored iron (p = 0.04, =0.17, F=4.59). Greater changes in body weight and percent of body fat were recorded in the HF group (for both p<0.01). Conclusion Body iron stores determine the effects of a 12-week NW + TRE intervention on serum ferritin. The changes in HbA1c are more pronounced in subjects with a higher decrease in serum ferritin.

Autorzy

• Jakub Antoni Kortas,
• Joanna Reczkowicz,
• Ulana Juhas,
• Ewa Ziemann,
• Aleksandra Świątczak,
• Katarzyna Prusik,
• Szczepan Olszewski,
• Nakisa Soltani,
• Ewa Rodziewicz-Flis,
• dr Damian Flis,
• Małgorzata Żychowska,
• dr inż. Grażyna Gałęzowska link otwiera się w nowej karcie ,
• Jędrzej Antosiewicz link otwiera się w nowej karcie