Impact of Inertial Training on Muscle Strength and Quality of Life in Breast Cancer Survivors

Alicja Naczk, Tomasz Huzarski, Janusz Doś, Magdalena Górska-Doś, Piotr Gramza, Ewa Gajewska and Mariusz Naczk
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Alicja Naczk: Faculty of Physical Culture in Gorzow Wielkopolski, University School of Physical Education in Poznan, 66-400 Gorzow Wielkopolski, Poland
Tomasz Huzarski: Institute of Medical Sciences, Collegium Medicum, University of Zielona Gora, 65-417 Zielona Gora, Poland
Janusz Doś: Faculty of Physical Culture in Gorzow Wielkopolski, University School of Physical Education in Poznan, 66-400 Gorzow Wielkopolski, Poland
Magdalena Górska-Doś: Faculty of Physical Culture in Gorzow Wielkopolski, University School of Physical Education in Poznan, 66-400 Gorzow Wielkopolski, Poland
Piotr Gramza: Association of Lubusz Innovation Network, 66-400 Gorzow Wielkopolski, Poland
Ewa Gajewska: Department of Developmental Neurology, Poznan University of Medical Sciences, 60-355 Poznan, Poland
Mariusz Naczk: Institute of Health Sciences, Collegium Medicum, University of Zielona Gora, 65-417 Zielona Gora, Poland

IJERPH, 2022, vol. 19, issue 6, 1-11

Abstract: The aim of the study was to evaluate the impact of inertial training on the muscle strength, on breast-cancer-related lymphedema, and on quality of life in breast cancer survivors. After a mastectomy, 24 women (age, 66.2 ± 10.6 years) were randomized to a training ( n = 12) or control group ( n = 12). The training group performed inertial training twice per week for 6 weeks with a training load of about 70% of the maximal force. Before and after training, we tested the maximum force of shoulder flexors, extensors, abductors, and adductors; body composition; breast-cancer-related lymphedema; and disabilities of the arm, shoulder, and hand. Inertial training significantly improved the strength in all tested muscles (from 32 to 68%; effect size (ES) from 0.89 to 1.85 in the impaired limb and from 31 to 64%; ES from 0.86 to 1.57 in the unimpaired limb). However, changes in the control group were not significant. Quality of life improved following treatment; the disabilities of the arm, shoulder, and hand score decreased significantly by 24.5% (ES from—0.29 to 1.38), p ≤ 0.05 in the training group and by 3.99% (ES from −0.49 to 1.14) in the control group p > 0.05. Breast-cancer-related lymphedema and body composition did not change significantly after the intervention in either group. We recommend inertial training for increasing muscle strength and improving quality of life in breast cancer survivors.

Keywords: inertial training; mastectomy; breast cancer; quality of life (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2022
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